JPH0631368B2 - Lubricant for thermoplastic plastics equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricant which can be used for thermoplastics devices without any trouble, and more specifically, a rotating or sliding member formed of a thermoplastics housing or component. The present invention relates to a fluorine-based lubricant that can be suitably used for various devices having a dynamic mechanism.

Conventional technology and its problems With the remarkable progress of science and technology in recent years, various materials for industrial and consumer equipment and devices are rapidly changing from conventional metals and glass to lightweight and inexpensive plastics. ing. In particular, thermoplastics containing a styrene-based component are easy to mass-produce and have good physical properties, and are therefore frequently used for housings and parts of electric machines, electronic devices and OA devices. Electronic circuits that do not involve mechanical operation are increasing as operating mechanisms for these various devices, but on the other hand, conventional mechanisms involving mechanical operations such as rotation and sliding are still indispensable. Lubricants are needed.

When conventional mineral oil-based lubricants are used for equipment with these plastic parts, crazing and cracking occur in the plastic parts where oil adheres, resulting in a phenomenon of strength reduction or damage. Has occurred frequently and has become a serious problem in the industry. Such a problem may cause not only a decrease in the service life of the component and an increase in failures, but also a serious risk that the reliability of the entire system is deteriorated.

Of the oils that are often in contact with molded articles made of thermoplastics, those that easily cause stress cracking include lubricating oil for the rotation and sliding mechanisms, grease, and a rust preventive agent for the molding die, Various oils and greases such as anticorrosion protection coats, release agents, etc. can be mentioned. In recent years, as the weight and size of various devices have been reduced, and the operating mechanism has become faster and the noise has been reduced, the chances of lubricants adhering to the housing have increased. The demand for safe oils and greases that do not damage thermoplastics is increasing.

For this reason, products called lubricants that can be safely used for plastics are already on the market, but in the case of products such as mineral oil and synthetic ester lubricants, crazing occurs at a bending strain rate of 0.5% for plastics. Most of them are cracked, and some of them have extremely low strength (in extreme cases, the strength is zero), so that they cannot be used at present.

In consumer electric, electronic equipment and OA equipment, thermoplastic resins containing styrene-based components, especially modified PPO resin housings are predominantly used at present, but this resin is particularly susceptible to oil attack. For,
Equipment manufacturers have reached the point where product design is affected, such as by sticking metal foil to areas where oil may come into contact with them and surpassing the immediate situation.

Means for Solving the Problems In view of the present situation, the present inventors have earnestly studied to develop a lubricant that can be suitably used for a thermoplastics device, and as a result, the following formula (1) is obtained. It has been found that a fluoroalkoxyphosphazene, which is a single compound of the indicated substances or a mixture thereof, can achieve the intended purpose of the present invention, and has completed the present invention.

That is, the present invention provides the following formula (1) {[H (CF ₂ CF ₂ ) _m CH ₂ O] _h [CF ₃ CH ₂ O] _k [CF ₃ CF ₂ C
H ₂ O] _l [PN] _n} (1) [In the _formula, a segment represented by _(CF 2 CF _{2) m} is a single segment or is an integer multiple of _{(CF 2 CF} 2) comprising units It shows the mixture of segments with different chain lengths that are integer multiples, where m = 2 in the case of a single segment, and when the segments with different chain lengths are mixed, m is the average. Represents the chain length of (C
F ₂ CF ₂ ) unit mean number of repetitions, the value of m is in the range 1.3 ≦ m ≦ 2.8, and n represents the number of PN units of the phosphonitrile ring skeleton, In the case of a mixture of rings with different numbers of iterations, it shows the average number of iterations, and takes a real value within the range of 3 ≦ n ≦ 5.3,
The values of h, k and 2 are 2n ≧ h ≧ 0, 2n ≧ k ≧ 0,
It is in the range of 2n ≧≧ 0 and satisfies h + k + = 2n. ) A lubricant for equipment made of thermoplastics, which is composed of a fluoroalkoxyphosphazene, which is a single compound of a substance represented by the following formula or a mixture thereof.

In the present invention, the fluoroalkoxyphosphazene of the general formula (1) is a novel compound not described in the literature (fluoroalkoxyphosphazene as a reaction product of various fluorinated alcohols and phosphonitrile chloride is known, but The fluorophosphazene shown in the formula is a synthetic example and the description of the physical properties is not found in the known literature.) For example, as shown in the reference example below, it is produced from an oligomer of phosphonitrile halide and fluoroalcohol. It is a substance. Examples of the phosphonitrile halide oligomer include trimer of phosphonitrile chloride, tetramer of phosphonitrile chloride, and a mixture thereof. Examples of fluoroalcohol include 1,1, ω-trihydroperfluoroalcohol such as 1,1,3-trihydroperfluoropropanol and 1,1,5-trihydroperfluoropentanol, and 2,2 A mixture with 3,3,3-pentafluoropropanol can be exemplified. The fluoroalkoxy cyclic phosphonitrile ester represented by the general formula (1) is one or more of the 1,1, ω-trihydroperfluoroalcohol and 2,2,2.
A mixture of 3,3,3-pentafluoropropanol was previously reacted with sodium or the like to give an alcoholate,
It is then also prepared by reacting this alcoholate with an oligomer of phosphonitrile halide.

Among the fluoroalkoxyphosphazenes represented by the above general formula (1), preferred examples include fluoroalkoxyphosphazenes in which k = 0 in the above general formula (1) and n is a real value of 3 ≦ n ≦ 4.3. Etc. can be mentioned.

There are no particular restrictions on the use of the lubricating composition of the present invention, and it can be used in the same manner as conventionally known lubricating compositions.

The thermoplastics to which the lubricant composition of the present invention is applied is not particularly limited, and conventionally known ones can be widely exemplified. For example, modified PPO resin, ABS resin, A
Examples thereof include S resin, ABS / polycarbonate polymer alloy resin, and styrene-modified resins such as styrene-methyl methacrylate resin.

Examples of equipment using these plastics materials include copying machines, printers, floppy drive devices, VTRs, compact discs, optical disc devices, cameras, clocks and the like. The composition of the present invention can be suitably used not only as a lubricant for the moving parts of these devices but also for non-moving parts such as tapping, for any purpose, or in contact with thermoplastic parts. It can also be preferably used as a rust preventive.

Effects of the Invention As is clear from the examples and comparative examples described below, modified PPO
Resin and ABS resin have a bending strain rate of 0.5% and crazing occurs with a commercially available mineral oil, and the elongation retention rate is 35% or less, which is far from the acceptance criteria, whereas the composition of the present invention is used. In addition to 0.5% distortion rate,
%, No crazing or cracking occurred, and the elongation retention rate was 80% or more, which is a very good result, and 100%.
Since some of them showed close values, the difference from the conventional product was clear, and the effect of the present invention was clearly recognized.

Examples Hereinafter, the present invention will be further clarified with reference to production examples of the compound of the formula (1), and further examples and comparative examples.

In addition, the tensile strength retention rate and the tensile elongation retention rate in each example are measured by the following methods.

That is, a JIS No. I type test piece prepared by injection molding or cutting from the target thermoplastics is given by the following formula (2) ε _max = Mh / 2EI = 6hδ / L ² (2) [where ε _max is The maximum bending strain on the tensile side of the test piece, M is the bending moment of the test piece, E is the elastic modulus of the material of the test piece,
I is the moment of inertia of area of the test piece, h is the thickness of the test piece, L
Is the distance between the fulcrums of the test piece, and δ is the deflection. ] Bending strains of 0%, 0.5% and 1% calculated by the above are added as shown in Fig. 10, the test oil agent is adhered (adhered) to the tensile side, and allowed to stand at 20 ° C for 7 days and tested. After removing the oil agent, a visual inspection and a tensile test were performed, each tensile strength and tensile elongation were measured, each retention rate was calculated, and the percentage of this value was used as a parameter.

In the above, the deflection was applied to the test piece using a stress crack test tool. The test oil agent was adhered to the test piece with absorbent cotton or a brush when it was a liquid material with high viscosity such as oil or grease, and when it was a substance with low viscosity, a filter paper impregnated with the material was adhered to the test piece. . The contact position of the test oil agent is the surface of the test piece where the maximum stress occurs.

The criteria for judgment were that no abnormalities such as crazing and whitening were observed in the visual test, the retention rate of tensile strength was 80% or more on average and the retention rate of tensile elongation was 50% or more, and it was set to pass.

Production Example 1 310 g (2.06 mol) of 2,2,3,3,3-pentafluoropropanol and 1,1,5-trihydroperfluoropen were placed in a four-necked flask equipped with a condenser, a stirrer and a thermometer. 480 g (2.06 mol) of tanol and 2000 m of toluene were charged, 91 g (3.95 mol) of small pieces of sodium were added under cooling, and the temperature was gradually raised.
The reaction was carried out at 40 ° C. until the sodium was completely dissolved. 178 g (0.384 g) of phosphonitrile chloride tetramer dissolved in 1000 m of toluene was added to this reaction solution.
Mol) solution was added dropwise at about 50 ° C., and the mixture was reacted under reflux for 4 hours. To remove the produced sodium chloride, the product was washed with water, dehydrated and concentrated to obtain 620 g of an oily crude product. This was subjected to simple distillation at 160 to 220 ° C./0.5 to 0.03 mmHg, and then precision fractionation was carried out with a high temperature precision fractionation device HP-9000B (manufactured by Shibata Chemical Co., Ltd.) to obtain a gas chromatograph and mass fraction for each fraction. Generation of the compound shown below was confirmed by spectrum, infrared absorption spectrum and proton nuclear magnetic resonance spectrum analysis.

_{(CF 3 CF 2 CH 2 O} ) l (HCF 2 CF 2 CF 2 CF 2 CH 2 O) 8-l P
₄ N ₄ (2,2,3,3,3-pentafluoropropoxy)
Heptakis (1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (compound with = 1) Boiling point: 209 to 211 ° C./0.3 mmHg Refractive index (n, 20 ° C.): 1.3532 Molecular weight: 1946 Bis (2,2,3,3,3-pentafluoropropoxy) hexakis (1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (= 2
Compound having a boiling point: 201 to 203 ° C./0.3 mmHg Refractive index (n, 20 ° C.): 1.3518 Molecular weight: 1864 Tris (2,2,3,3,3-pentafluoropropoxy) pentakis (1,1 , 5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (=
Compound which is 3) Boiling point: 195 to 197 ° C./0.3 mmHg Refractive index (n, 20 ° C.): 1.3503 Molecular weight: 1782 Tetrakis (2,2,3,3,3-pentafluoropropoxy) tetrakis (1, 1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (= 4 compound) Boiling point: 189-191 ° C / 0.3 mmHg Refractive index (n, 20 ° C): 1.3489 Molecular weight: 1700 Pentakis (2 , 2,3,3,3-Pentafluoropropoxy) tris (1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (=
Compound which is 5) Boiling point: 179 to 182 ° C./0.3 mmHg Refractive index (n, 20 ° C.): 1.3475 Molecular weight: 1618 Hexakis (2,2,3,3,3-pentafluoropropoxy) bis (1, 1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (= 6
Compound) boiling point: 168 to 170 ° C./0.3 mmHg refractive index (n, 20 ° C.): 1.3460 molecular weight: 1536 heptakis (2,2,3,3,3-pentafluoropropoxy) (1,1, 5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile (= 7 compound) Boiling point: 157-159 ° C / 0.3mmHg Refractive index (n, 20 ° C): 1.3446 Molecular weight: 1454 Various types obtained above Among these, pentakis (2,2,3, since the compounds show spectra with the same pattern,
3,3-pentafluoropropoxy) tris (1,1,
The proton nuclear magnetic resonance spectrum of 5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile is shown in FIG. The spectra are 5.75 and 6.4.
It has a characteristic absorption of hydrogen at the 5-position coupled with fluorine at 0, 7.05 ppm, and the difference from the spectra of the other 6 compounds is the integrated intensity with the absorption of hydrogen at the 1-position at 4.5 ppm. Only the ratio was different.

The infrared absorption spectrum of the tetrakis (2,2,3,3,3-pentafluoropropoxy) tetrakis (1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile obtained above is shown in FIG. . According to this spectrum, absorption of the cyclic phosphonitrile tetramer skeleton appears at 1350 cm ^-1 .

Tris (2,2,3,3,3-pentafluoropropoxy) pentakis (1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile obtained above, tetrakis (2,2,3,3,3) 3-pentafluoropropoxy) tetrakis (1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile and pentakis (2,2,3,3,3-pentafluoropropoxy) tris (1,1,5- A vapor pressure diagram of (trihydroperfluoropentyloxy) cyclotetraphosphonitrile is shown in FIG.

Production Example 2 An alcoholate was synthesized in the same manner as in Production Example 1, and a toluene solution of 178 g of phosphonitrile chloride trimer was added dropwise to this, and the reaction and post-treatment were performed in the same manner as in Production Example 1 to obtain 605 g of an oily crude product. . This is 130-195 ℃ /
After simple distillation at 0.75-0.03mmHg, HP-900
Precise fractionation was carried out at 0B to confirm the production of the compound shown below.

_{(CF 3 CF 2 CH 2 O} ) l (HCF 2 CF 2 CF 2 CF 2 CH 2 O) 6-l P
₃ N ₃ (2,2,3,3,3-pentafluoropropoxy)
Pentakis (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphonitrile (compound with = 1) Boiling point: 178-180 ° C / 0.3mmHg Refractive index (n, 20 ° C): 1.3483 Molecular weight: 1439 Bis (2,2,3,3,3-pentafluoropropoxy) tetrakis (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphonitrile (compound where = 2) Boiling point: 167-169 ° C / 0.3 mmHg Refractive index (n, 20 ° C.): 1.3459 Molecular weight: 1357 Tris (2,2,3,3,3-pentafluoropropoxy) tris (1,1,5-trihydroperfluoropentyloxy) cyclo Triphosphonitrile (compound with = 3) Boiling point: 153-155 ° C / 0.3mmHg Refractive index (n, 20 ° C): 1.3436 Molecular weight 1275 Tetrakis (2,2,3,3,3-pentafluoropropoxy) bis (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphonitrile (compound where = 4) Boiling point: 142-144 ° C / 0.3 mmHg Refractive index (n, 20 ° C.): 1.3412 Molecular weight: 1193 Pentakis (2,2,3,3,3-pentafluoropropoxy) (1,1,5-trihydroperfluoropentyloxy) cyclotri Phosphonitrile (compound with = 5) Boiling point: 130 to 132 ° C / 0.3 mmHg Refractive index (n, 20 ° C): 1.3388 Molecular weight: 1111 Among the compounds obtained above, bis (2,2,3,) 3,3
-Pentafluoropropoxy) tetrakis (1,1,5
-Trihydroperfluoropentyloxy) cyclotriphosphonitrile, tris (2,2,3,3,3-pentafluoropropoxy) tris (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphonitrile and tetrakis Nuclear magnetic resonance spectrum of (2,2,3,3,3-pentafluoropropoxy) bis (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphonitrile. Shown in the figure. The infrared absorption spectrum of tetrakis (2,2,3,3,3-pentafluoropropoxy) bis (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphonitrile is shown in FIG.

Production Example 3 A reactor similar to that in Production Example 1 was charged with 178 g (0.384 mol) of phosphonitrile chloride tetramer and 1000 of toluene.
m was charged and completely dissolved, and then an alcoholate prepared from 480 g (2.06 mol) of 1,1,5-trihydroperfluoropentanol and 45.5 g (1.98 mol) of sodium in 1000 m of toluene was added dropwise. Then
The reaction was carried out at 50 ° C for 4 hours. 2, 2 in this reaction solution
155 g of 3,3,3-pentafluoropropanol
(1.03 mol), 1,1,3-trihydrotetrafluoropropanol 136 g (1.03 mol) and sodium 45.5 g (1.98 mol) in toluene 1000 m
The alcoholate separately prepared in the above was added dropwise, and the reaction was carried out at 50 ° C. for 4 hours. Thereafter, the same treatment, simple distillation, and precision fractional distillation were performed as in Production Example 1, and 193 to 195 ° C./0.3 mmHg
To obtain 120 g of a fraction. The obtained compound was identified by bis (2,2,3,3,3-pentafluoropropoxy) bis (1,1,3-trihydroperfluoropropoxy) tetrakis (from gas chromatography, mass spectrometry and proton nuclear magnetic resonance spectrum. It was confirmed to be 1,1,5-trihydroperfluoropentyloxy) cyclotetraphosphonitrile. The refractive index of this compound is 20
It was 1.3567 in ° C. The proton nuclear magnetic resonance spectrum and infrared absorption spectrum of this compound are shown in FIG. 8 and FIG. 9, respectively.

Production Example 4 2,4,3,3,3-pentafluoropropanol (155 g, 1.03 mol) and 1,1,5-trihydrooctafluoropen were placed in a four-necked flask equipped with a condenser, a stirrer and a thermometer. 240g of Tanol (1.03mol)
And 1000 m of toluene were charged, and 45.3 g (1.97 mol) of a small piece of sodium was added under cooling, and the reaction was carried out at 40 ° C. for 4 hours until the sodium was completely dissolved. A solution of 89 g (0.192 mol) of phosphonitrile chloride tetramer dissolved in 500 m of toluene was added dropwise to this reaction solution at about 50 ° C., and the reaction was carried out under reflux for 4 hours. To remove the produced sodium chloride, the product was washed with water, dehydrated and concentrated to obtain 310 g of an oily crude product. This was distilled under reduced pressure to collect 260 g of a fraction of 160 to 193 ° C./0.03 mmHg. As a result of GC and GC-MS analysis, this colorless and transparent oily substance was n = 4 and m = 2, and in the compound of the above general formula (1), = 1 was 1.6%,
= 2 is 8.6%, = 3 is 22.9%, and = 4 is 3
It was confirmed that it was a mixture of 7 components in a ratio of 2.7%, = 5 was 23.3%, = 6 was 8.5% and = 7 was 1.5%. The specific gravity of this substance is 1.746 (20 ° C),
Viscosity is 204cps (40 ℃), vapor pressure is 1mmHg / 188
The pour point was -37.5 ° C.

Production Example 5 2,2,3,3,3-pentafluoropropanol 63
g, 1,1,3-trihydrotetrafluoropropanol (56 g) and 1,1,5-trihydrooctafluoropentanol (98 g) were used to synthesize an alcoholate in the same manner as in Production Example 1 and phosphonitrile chloride. The tetramer is reacted and treated in the same manner as in Production Example 1,
235 g of a fraction of 160 to 185 ° C./0.03 mmHg was collected. This is a colorless and transparent oily substance with a specific gravity of 1.
73 (20 ° C), viscosity 285cps (40 ° C), pour point-
It had a physical property of 35 ° C. Further, this compound B has a value of 0.59, m from the integration value of ¹ H-NMR measured accurately.
It was found to have an average value of = 1.55.

Production Example 6 A mixture of telomeric fluoroalcohols represented by the formula H (CF ₂ CF ₂ ) _m CH ₂ OH (m = 1, 2, 3,
The ratio of each of 4, 5 is 33, 42, 17, 5, 3%
[Average value of GC analysis is m = 2.03] 240
g was added with 155 g of 2,2,3,3,3-pentafluoropropanol to synthesize an alcoholate, which was mixed with a phosphonitrile chloride mixture (n = 3,4,5,6).
Each of the above ratios was 69,1 by GC analysis.
89 g, which is 6,7,8%),
210 g of a fraction at 0 ° C./0.03 mmHg was collected. The physical properties of this product are as follows: specific gravity 1.74 (20 ° C), viscosity 340cps
(40 ° C) and pour point -35 ° C.

Example 1 A JIS No. I tensile test piece made of ABS resin [Styrac 191, manufactured by Asahi Kasei] or modified PPO resin [Yupiace AN-45, manufactured by Mitsubishi Gas Chemical Co., Ltd.] was bent by the above formula (2). Strain 0%, 0.5%, 1% was added, and a filter paper impregnated with a lubricating oil consisting of hexakis (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphazene was adhered to the tensile side, After standing at 20 ° C. for 7 days, the lubricating oil was removed with methanol, a visual inspection was performed, and then a tensile test was performed.

As a result of the visual inspection of the test conducted with the number of repetitions of 0%,
No abnormality was observed in any of the bending strains of 0.5% and 1%. Further, the results of the tensile strength and elongation measurement of the test piece showed values as shown in Table 1 below, which were very good.

Example 2 Example 1 except that a lubricating oil consisting of tris (2,2,3,3,3-pentafluoropropyloxy) tris (1,1,5-trihydroperfluoropentyloxy) cyclotriphosphazene is used. Inspection and testing were performed in the same manner as in 1.

As a result of visual inspection, no abnormality was observed in any of 0%, 0.5%, and 1% bending strain. Further, the results of the tensile strength and the elongation measurement in the test book showed values as shown in Table 2 below, which were very good.

Example 3 In the above formula (1), k = 0, m = 2, and n = 3, = 0 is 4%, = 1 is 18%, and = 2 is 31%.
Inspection and testing are carried out in the same manner as in Example 1 except that a lubricating oil consisting of a mixture (= 3 is 28%, = 4 is 13% and = 5 is 3%) is used. It was

As a result of visual inspection, no abnormality was observed in any of 0%, 0.5%, and 1% bending strain. The results of tensile strength and elongation measurement of the test piece showed values as shown in Table 3 below, which were very good.

Example 4 In the above formula (1), except that a lubricating oil consisting of a mixture of fluoroalkoxycyclotriphosphazene having = 0, m = 2, n = 3 and an average value of k of 2.7 is used. An inspection and a test were conducted in the same manner as in Example 1.

As a result of visual inspection, no abnormality was observed in any of 0%, 0.5%, and 1% bending strain. The results of tensile strength and elongation measurement of the test piece showed values as shown in Table 4 below, which were very good.

Examples 5 to 7 Inspections and tests were performed in the same manner as in Example 1 except that the lubricating oil A, the lubricating oil B, and the lubricating oil C shown below were used.

As a result of visual inspection, no abnormality was found in bending strain of any of the lubricating oils. The results of tensile strength of the test pieces were very good, showing the values shown in Table 5 below.

Lubricating oil A: Formula (1) in which h = 0, ≈k, n≈3.5
Compound of B: h≈4, ≈2, k≈1, m = 2, n≈3.
Compound of formula (1) with 5 Lubricating oil C: compound of formula (1) with k = 0, h≈, m≈2, n = 4 Comparative Example 1 A JIS I tensile test piece made of an ABS resin [Styrac 191, manufactured by Asahi Kasei] or a modified PPO resin [Yupiace AN-45, manufactured by Mitsubishi Gas Chemical Co., Ltd.] was bent by the formula (2). Strain 0%, 0.5%, 1% was added, and a filter paper impregnated with a lubricant for commercial plastics and a lubricant for commercial plastics (for high temperature) was adhered to the tension side,
After standing at 20 ° C. for 7 days, the lubricating oil was removed with methanol, a visual inspection was performed, and then a tensile test was performed.

As a result of the visual inspection of the test conducted with the number of repetitions 3, the occurrence of crazing or cracks was observed at bending strains of 0.5% and 1%. Also in the tensile test, the strength was significantly reduced.

Comparative Example 2 Using a commercially available mineral oil-based lubricating oil, an inspection and a test were conducted in the same manner as in Example 1 above.

As a result of visual inspection, the occurrence of crazing was observed at bending strains of 0.5% and 1%. Also in the tensile test, the decrease in elongation was remarkable.

Example 8 (Example of use in copying machine) The lubricating oil used in Example 1 was applied to a portion of a copying machine housing molded using a modified PPO resin, which was particularly susceptible to stress (conventional stress cracks were often generated). Then 2
Tests were conducted at 5 ° C and 65 ° C up to 720 ° C, respectively. As a result of visual inspection, in all cases, no occurrence of stress cracks was observed, and it was confirmed that the product can be used safely.

[Brief description of drawings]

FIG. 1 is a proton nuclear magnetic resonance spectrum of the compound obtained in Example 1. FIG. 2 is an infrared absorption spectrum diagram of the compound obtained in Example 1. FIG. 3 is a vapor pressure diagram of the compound obtained in Example 1. Figure 4,
FIG. 5 and FIG. 6 are proton nuclear magnetic resonance spectrum diagrams of each compound obtained in Example 2. FIG. 7 is an infrared absorption spectrum diagram of the compound obtained in Example 2.
FIG. 8 is a proton nuclear magnetic resonance spectrum of the compound obtained in Example 3. FIG. 9 is an infrared absorption spectrum diagram of the compound obtained in Example 3. Figure 10 shows
It is drawing for demonstrating the test method at the time of measuring tensile strength and tensile elongation.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Yamada 463 Kagasuno, Kawauchi Town, Tokushima City, Tokushima Prefecture, Tokushima Plant, Otsuka Chemical Co., Ltd. (72) Mitsuo Hirohama, 1033 Ashihara Town, Nishinomiya City, Hyogo Prefecture Matsumura Petroleum Research Institute Co., Ltd. (72) Inventor Tamio Akada 10-33 Ashihara-cho, Nishinomiya City, Hyogo Prefecture Matsumura Petroleum Research Co., Ltd. (56) Reference JP-A-58-164698 (JP, A)

Claims (3)

[Claims] 1. A lubricant for equipment made of thermoplastics comprising a fluoroalkoxyphosphazene which is a single compound of a substance represented by the following formula (1) or a mixture thereof. _{{[H (CF 2 CF 2) m} CH 2 O ] _{h [CF} 3 CH ₂ O] _{k [CF} 3 _CF 2 C
H ₂ O] _l [PN] _n} (1) [In the _formula, a segment represented by _(CF 2 CF _{2) m} is a single segment or is an integer multiple of _{(CF 2 CF} 2) comprising units It shows the mixture of segments with different chain lengths that are integer multiples, where m = 2 in the case of a single segment, and when the segments with different chain lengths are mixed, m is the average. Represents the chain length of (C
F ₂ CF ₂ ) unit mean number of repetitions, the value of m is in the range 1.3 ≦ m ≦ 2.8, and n represents the number of PN units of the phosphonitrile ring skeleton, In the case of a mixture of rings with different numbers of iterations, it shows the average number of iterations, and takes a real value within the range of 3 ≦ n ≦ 5.3,
The values of h, k and 2 are 2n ≧ h ≧ 0, 2n ≧ k ≧ 0,
It is in the range of 2n ≧≧ 0 and satisfies h + k + = 2n. ) 2. The lubricant according to claim 1, wherein the fluoroalkoxyphosphazene has a real value of k = 0 and n ≦ 3 ≦ n ≦ 4.3 in the above formula (1). 3. Thermoplastics are modified PPO, A
The lubricant according to claim 1 or 2, which is at least one selected from the group consisting of BS, AS and HIPS.