JP2564864B2 - Deodorant - Google Patents

Description

TECHNICAL FIELD The present invention relates to a deodorant.

[Conventional technology]

As the deodorant, activated carbon, partial ester of oxyacid or polybasic acid, a mixture of ascorbic acid and iron, etc. are used.

[Problems to be solved by the invention]

Although these are effective, many of them are powdery and cannot be used for transparent ones, cannot be used by dissolving in water, etc., and cannot be used as a film. .

The object of the present invention is to provide a deodorant having a wide range of use.

[Means for solving problems]

The present invention is a deodorant comprising a copolymer of the polyoxyalkylene derivative represented by the general formula (1) and maleic anhydride.

In the general formula (1), examples of the compound having 2 to 8 hydroxyl groups having B as a residue include ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, dodecylene glycol, styrene glycol, neopentyl glycol, Glycerin, diglycerin, polyglycerin, trimethylolethane, trimethylolpropane, 1,3,5-pentanetriol, erythritol, pentaerythritol, dipentaerythritol, sorbitol, sorbitan, sorbide, sorbitol-glycerin condensate, adonitol, arabitol, Polyhydric alcohols such as xylitol and mannitol, xylose, arabinose, ribose, rhamnose, glucose, fructose, galactose, mannose, sorbose, cellobio. Scan, maltose, isomaltose, trehalose, Shiyukurosu, raffinose, gentianose, saccharides such as rhamnose, catechol, resorcinol, hydroquinone, phloroglucinol, phenols such as bisphenol A, and the like their partial esterification products or partial etherified product.

Examples of the oxyalkylene group represented by AO include an oxyethylene group, an oxypropylene group, an oxybutylene group, an oxytetramethylene group, an oxidedecylene group, an oxyoctadecylene group, and an oxystyrene group.

The oxyalkylene group is necessary in order to increase the affinity with a polar odorous substance, but if it is too large, the deodorizing effect is lowered because the proportion of maleic anhydride units in the copolymer is lowered, so a and b Must not exceed 100.

Examples of the unsaturated hydrocarbon group having 2 to 5 carbon atoms or acyl group represented by R ¹ include vinyl group, allyl group, methallyl group, 1,1-dimethyl-2-propenyl group, 3-methyl-
There are 3-butenyl group, acryl group, methacryl group, etc.,
At least 1 to form a copolymer with maleic anhydride
Individuals are needed.

As the hydrocarbon group having 1 to 24 carbon atoms represented by R ² , a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a tertiary butyl group, an amyl group, an isoamyl group, a hexyl group, and heptyl. Group, 2-ethylhexyl group, octyl group, nonyl group, decyl group, dodecyl group, isotridecyl group, tetradecyl group, hexadecyl group, octadecyl group, isooctadecyl group, oleyl group, octyldodecyl group, docosyl group, decyltetradecyl group,
Benzyl group, cresyl group, butylphenyl group, dibutylphenyl group, octylphenyl group, nonylphenyl group,
There are dodecylphenyl group, dioctylphenyl group, dinonylphenyl group, styrenated phenyl group, etc.
As the acyl group of ~ 24, acetic acid, propionic acid, butyric acid, isobutyric acid, caproic acid, caprylic acid, 2-ethylhexanoic acid, pelargonic acid, capric acid, lauric acid, myristic acid, palmitic acid, isopalmitic acid, stearic acid , Isostearic acid, arachidic acid, behenic acid, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, erucic acid, benzoic acid, hydroxybenzoic acid, cinnamic acid, gallic acid and the like.

The compound of the general formula (1) needs to contain no free hydroxyl group in order to have a sufficient deodorizing effect. Since the acid anhydride group of the maleic anhydride unit exhibits a deodorizing action, the compound having a hydroxyl group forms an ester with maleic anhydride,
This is to reduce the deodorizing effect.

The copolymer as the deodorant of the present invention can be obtained by copolymerizing the polyoxyalkylene derivative represented by the general formula (1) and maleic anhydride. Copolymers with various degrees of polymerization can be obtained by changing the number average molecular weight of 500.
~ 2 million. Also, the properties of the copolymer can be changed by changing the molecular weight of the polyoxyalkylene derivative, the portion represented by R ² , or the oxyalkylene group. If a polyoxyalkylene derivative having a small molecular weight is used, a hard copolymer is obtained, and if a polyoxyalkylene derivative having a large molecular weight is used, a soft copolymer is obtained. Further, when a polyoxyalkylene derivative having many oxyethylene groups added as oxyalkylene groups is used, a copolymer that is hard and easily soluble in water can be obtained. Whatever oxyalkylene is used, a liquid product can be obtained by reducing the polymerization degree of the copolymer. Also, the number of R ¹ , that is, l
If 2 or more is used, it can be crosslinked to obtain a high molecular weight copolymer which is insoluble in water or a solvent. Further, a monomer such as styrene, α-olefin, vinyl acetate or the like may be copolymerized for the purpose of increasing hardness.

The deodorant of the present invention may be used after being dissolved or dispersed in a liquid such as water, used as a powder or used in the form of a film.

〔The invention's effect〕

The present invention is a deodorant containing a copolymer of a polyoxyalkylene derivative and maleic anhydride as an active ingredient, and is a deodorant having a wide range of application. In particular, it shows good effects on ammonia, lower alkyl amines, hydrogen sulfide, and lower alkyl mercaptans.

〔Example〕

 Next, the present invention will be described with reference to examples.

Example 1 Using the compounds shown in Table 1, the deodorizing effect of ammonia was tested by the following method.

Prepare three glass pressure-resistant tubes with a blow-in port at one end and an outlet at the other end, one of which contains 0.020 g of 25 wt% ammonia water, and one of which is a 5 wt% aqueous solution of deodorant. Or 200 ml of the dispersion liquid, and the remaining one is 100% 5% by weight hydrochloric acid aqueous solution.
Take 1 ml, connect the pressure tube with ammonia water, deodorant, and hydrochloric acid in this order, and ventilate air from the side of the ammonia water at a rate of 100 ml per minute for 30 minutes, then remove the ammonia ions contained in the hydrochloric acid aqueous solution from the Nessler reagent. Was used, and this amount was subtracted from the total amount of ammonia to calculate the collection rate by the deodorant. The results are also shown in Table 1. No. 13
Used only 200 ml of water.

It can be seen that the deodorant of the present invention has an excellent deodorizing effect.

Example 2 Instead of the 5% by weight aqueous solution (dispersion liquid) of the compound of Example 1, Nos. 3 to 5, 7, 8, 10 and 12 in Table 1 were crushed to obtain a particle size of 0.3 mm to 1.0 mm. The same test was performed by filling 30 g of the prepared powder. The results are shown in Table 2, which shows that the deodorant of the present invention exhibits excellent effects.

Claims (1)

(57) [Claims] 1. A deodorant comprising a copolymer of a polyoxyalkylene derivative represented by the general formula (1) and maleic anhydride.