JPH0565537B2 - - Google Patents
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- Publication number
- JPH0565537B2 JPH0565537B2 JP11687490A JP11687490A JPH0565537B2 JP H0565537 B2 JPH0565537 B2 JP H0565537B2 JP 11687490 A JP11687490 A JP 11687490A JP 11687490 A JP11687490 A JP 11687490A JP H0565537 B2 JPH0565537 B2 JP H0565537B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- fluorescent substance
- hypophosphorous acid
- glass fiber
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は、熱可塑性樹脂成形体の特性を改善す
るために熱可塑性樹脂溶融物中に混入する熱可塑
性樹脂用混入材並びに樹脂成形体に関する。
The present invention relates to a thermoplastic resin admixture that is mixed into a thermoplastic resin melt in order to improve the properties of the thermoplastic resin molded product, and to a resin molded product.
熱可塑性樹脂成形体の特性を改善するため、熱
可塑性樹脂溶融物中にガラス繊維束切断物（CS）
のような補強繊維或はタルク、炭カルのような充
填材を混入成形することは知られている。
例えば、熱可塑性樹脂溶融物中に補強繊維を混
入することにより樹脂成形体の強度を向上せしめ
る。上記成形体はFTPとして電気部品、自動車
部品等に広く用いられている。
In order to improve the properties of thermoplastic resin moldings, cut glass fiber bundles (CS) are added to the thermoplastic resin melt.
It is known to mix and mold reinforcing fibers such as, or fillers such as talc and charcoal. For example, the strength of a resin molded article can be improved by mixing reinforcing fibers into a thermoplastic resin melt. The above-mentioned molded product is widely used as FTP in electrical parts, automobile parts, etc.
補強繊維、充填材のような混入材を熱可塑性樹
脂溶融物中に混入成形する際、熱可塑性樹脂が変
質し着色することが暫々生ずる。このため成形体
中に白色、青色、赤色、黄色等の顔料を混入して
も、純白或は色相の鮮やかな成形体が得られな
い。
熱可塑性樹脂中に蛍光物質を混入することによ
り着色を防止しうるが、着色を有効に防止しよう
とすると、多量の蛍光物質を混入する必要があ
り、耐熱性、機械的強度等の成形体の性能が低下
し易い。
又蛍光物質と熱可塑性樹脂が均一に混入し難
く、品質のムラが出来易い。
本発明者は、従来技術の上記問題点を解消し、
多量の蛍光物質を使用することなく、樹脂成形体
の着色を有効に防止し、均質な樹脂成形体を得る
ため検討を重ね、紫外線を吸収して蛍光を発生す
る蛍光物質を被着させた混入材を使用し、これを
熱可塑性樹脂溶融物中に混入すること（以下先行
技術と呼ぶ）により好適な結果の得られることを
見出し、特許出願を行なつた。
本発明は、上述の従来技術の問題点を解消する
とともに、以下述べる先行技術の問題点をも解消
し、一層好適な結果を得ることを目的としてい
る。
記（先行技術の有する問題点）
先行技術によるときは、多量の蛍光物質を使用
することなく、樹脂成形体の着色を有効に防止
し、均質な樹脂成形体を得ることができるが、高
温で成形を行なうと、蛍光物質が分解し赤味を生
ずることがある。
When mixing materials such as reinforcing fibers and fillers into a thermoplastic resin melt, the thermoplastic resin may change in quality and become colored for some time. For this reason, even if white, blue, red, yellow, or other pigments are mixed into the molded product, a pure white molded product or a molded product with a bright hue cannot be obtained. Coloring can be prevented by mixing a fluorescent substance into a thermoplastic resin, but in order to effectively prevent coloring, it is necessary to mix a large amount of fluorescent substance, which affects the molded product's properties such as heat resistance and mechanical strength. Performance tends to deteriorate. Furthermore, it is difficult to mix the fluorescent substance and the thermoplastic resin uniformly, which tends to result in uneven quality. The present inventor solved the above problems of the prior art,
In order to effectively prevent coloring of the resin molded object and obtain a homogeneous resin molded object without using a large amount of fluorescent material, we have developed a mixture that is coated with a fluorescent material that absorbs ultraviolet rays and generates fluorescence. The inventors have found that suitable results can be obtained by mixing this material into a thermoplastic resin melt (hereinafter referred to as the prior art), and have filed a patent application. The present invention aims to solve the problems of the prior art described above, as well as the problems of the prior art described below, and to obtain even more suitable results. (Problems with the prior art) According to the prior art, it is possible to effectively prevent coloring of a resin molded body and obtain a homogeneous resin molded body without using a large amount of fluorescent material, but it is possible to obtain a homogeneous resin molded body, but it is possible to obtain a homogeneous resin molded body without using a large amount of fluorescent substance. When molding, the fluorescent material may decompose and produce a reddish tint.
上記目的を達成するために、本発明にあつては
次亜リン酸又はその塩及び紫外線を吸引して蛍光
を発生する蛍光物質（蛍光物質と略称）を被着さ
せた熱可塑性樹脂用混入材を使用し、又この混入
材を熱可塑性樹脂溶融物中に混入成形して樹脂成
形体を製造する。
又混入材として、ガラス繊維に次亜リン酸又は
その塩及び蛍光物質を含有する処理剤を附与集束
したガラス繊維束を使用する。
次に本発明を更に具体的に説明する。
本発明において使用する蛍光物質としては300
〜380nmの範囲の紫外線吸収して蛍光を発生する
ものを使用するのが望ましく、太陽光（自然光）
或は照明光中に含まれる紫外線の作用により、本
発明の目的を達成するに充分な蛍光を発生させる
ことができる。
又吸収する紫外線のエネルギーEoと発生する
蛍光のエネルギーＥとの比Ｅ／Eoが可及的なる
ものが望ましく、少量の蛍光物質の使用で大きい
効果を得ることができる、。
又発生する蛍光の最適な波長分布は、使用する
熱可塑性樹脂の種類、加工条件等に応じて定まる
が、一般的に400〜600nmの波長範囲の蛍光を主
として発生するものが好ましい。
このような蛍光物質としては、ベンゾオキサゾ
ール系、トリアゾール系、クマリン系、ピラゾリ
ン系、スチリン系、ナフタルイミド系の化合物が
例示される。
次亜リン酸又はその塩（次亜リン酸等と略称）
としては、次亜リン酸、次亜リン酸ナトリウム、
次亜リン酸カリウム、次亜リン酸カルシウム、次
亜リン酸マグネシウム、次亜リン酸亜鉛等を用い
ることができるが、酸性次亜リン酸塩、就中酸性
次亜リンカルシウム又はナトリウム［Ca（H2
PO2）2、NaH2PO2］が特に好適な結果を与える。
次亜リン酸等及び蛍光物質（本化合物と総称）
を被着せしむべき熱可塑性樹脂用混入材として
は、タルク、炭カル、ガラスビーズ、ガラスフレ
ーク、ミルドフアイバー、水酸化アルミ等のよう
な充填材、ガラス繊維、カーボン繊維のような補
強繊維が例示される。
本化合物を混入材に被着させる方法に特に限定
はなく、本化合物の懸濁液を混入材にスプレー
し、或は本化合物の微粉を混入材と混合し、或は
本化合物を浮遊させた気体を用いて混入材を処理
することもできるが、ブツシングから引出した多
数のガラス繊維を集束する際、ガラス繊維に附与
すべき処理剤（バインダ）中に本化合物を予め含
有させておき、このような本化合物を含有する処
理剤（以下本処理剤という）をガラス繊維に附与
するのが最も好ましい。
処理剤としてはエポキシ樹脂、ウレタン樹脂の
ような被膜形成材、有機珪素化合物のようなカツ
プリング剤、界面活性剤のような潤滑剤を含有す
るものが好適に使用できる。
又、次亜リン酸等と蛍光物質とを別々に混入材
に被着することもできる。
混入材に被着せしむべき、蛍光物質及び次亜リ
ン酸等の量は、熱可塑性樹脂（マトリクス樹脂）
を種類によつても異なるが、夫々0.001〜0.5wt
％、0.05〜1.5wt％とするのが適当である。
この量があまり少ないと、本発明の効果が充分
でなく、又、この量をあまり大きくしても効果の
増大はあまり望めず、却つて機械的強度、耐熱性
の低下のような欠点が生じ易い。
熱可塑性樹脂としては、PBT，PET，PP，
PE，PC，ポリアミド、AS，ABS，PPS或はこ
れらの混合物（ポリマーアロイ）を用いることが
できる。
上述したような本化合物を被着させた混入材
（本混入材）を、可塑性樹脂溶融物中に混入成形
する。
例えば、本処理剤を附与集束してなるガラス繊
維束の切断物（CS）と熱可塑性樹脂溶融物とを
混練機で混合して押出して棒状物となし、この棒
状物を切断して得たペレツトを原料として用い、
射出成形によつて所望形状の樹脂成形体を得るこ
とができる。
なお、CSと熱可塑性樹脂溶融物とを混合する
際、充填材、顔料も同時に混合することができ
る。CSと併用する充填材には必ずしも本化合物
を被着させておく必要はないが、本化合物を被着
させた方が好ましい。
なお、CSを用いず、熱可塑性樹脂溶融物と、
本化合物を被着せしめた充填材とを混合すること
もできる。
又、本処理剤を附与したガラス繊維ロービン
グ、或はマツト状物に熱可塑性樹脂溶融物を含浸
せしめることにより混入材を熱可塑性樹脂溶融物
中に混入し、ついでプレス成形によつて樹脂成形
体を得ることができる。
本発明において樹脂体の寸法、形状に限定はな
く、又完成品、半加工品（例えば棒状体、板状
体）或は原料ペレツトたるとを問わない。
In order to achieve the above object, the present invention uses a mixed material for thermoplastic resin coated with hypophosphorous acid or its salt and a fluorescent substance (abbreviated as fluorescent substance) that generates fluorescence by absorbing ultraviolet rays. A resin molded article is produced by mixing this mixed material into a thermoplastic resin melt and molding it. Further, as a mixed material, a glass fiber bundle is used, which is made by adding and concentrating a treatment agent containing hypophosphorous acid or its salt and a fluorescent substance to glass fibers. Next, the present invention will be explained in more detail. The fluorescent material used in the present invention is 300
It is preferable to use a material that absorbs ultraviolet light in the range of ~380 nm and generates fluorescence, and sunlight (natural light)
Alternatively, sufficient fluorescence can be generated to achieve the object of the present invention by the action of ultraviolet rays contained in the illumination light. It is also desirable that the ratio E/Eo of the absorbed ultraviolet energy Eo to the emitted fluorescence energy E be as high as possible, and a large effect can be obtained with the use of a small amount of fluorescent material. The optimal wavelength distribution of the generated fluorescence is determined depending on the type of thermoplastic resin used, processing conditions, etc., but it is generally preferable to use a material that primarily emits fluorescence in the wavelength range of 400 to 600 nm. Examples of such fluorescent substances include benzoxazole-based, triazole-based, coumarin-based, pyrazoline-based, styrene-based, and naphthalimide-based compounds. Hypophosphorous acid or its salts (abbreviated as hypophosphorous acid, etc.)
Examples include hypophosphorous acid, sodium hypophosphite,
Potassium hypophosphite, calcium hypophosphite, magnesium hypophosphite, zinc hypophosphite, etc. can be used, but acidic hypophosphite, especially acidic calcium hypophosphite or sodium [Ca(H 2
PO 2 ) 2 , NaH 2 PO 2 ] gives particularly favorable results. Hypophosphorous acid, etc. and fluorescent substances (collectively referred to as this compound)
Examples of admixtures for thermoplastic resin that should be coated include fillers such as talc, charcoal, glass beads, glass flakes, milled fibers, aluminum hydroxide, etc., and reinforcing fibers such as glass fiber and carbon fiber. be done. There are no particular limitations on the method of applying the present compound to the contaminant, such as spraying a suspension of the present compound onto the contaminant, mixing fine powder of the present compound with the contaminant, or suspending the present compound. It is also possible to treat the contaminants using gas, but when converging a large number of glass fibers pulled out from the bushing, it is possible to include this compound in advance in the treatment agent (binder) to be added to the glass fibers, It is most preferable to apply a treatment agent containing the present compound (hereinafter referred to as the present treatment agent) to glass fibers. As the processing agent, those containing film forming materials such as epoxy resins and urethane resins, coupling agents such as organic silicon compounds, and lubricants such as surfactants can be suitably used. Further, hypophosphorous acid or the like and the fluorescent substance can be separately applied to the mixed material. The amount of fluorescent substance, hypophosphorous acid, etc. that should be applied to the mixed material depends on the thermoplastic resin (matrix resin)
It varies depending on the type, but each is 0.001~0.5wt.
%, 0.05 to 1.5 wt% is appropriate. If this amount is too small, the effect of the present invention will not be sufficient, and even if this amount is too large, the effect cannot be expected to increase much, and on the contrary, disadvantages such as a decrease in mechanical strength and heat resistance will occur. easy. Thermoplastic resins include PBT, PET, PP,
PE, PC, polyamide, AS, ABS, PPS or a mixture thereof (polymer alloy) can be used. A mixed material coated with the present compound as described above (main mixed material) is mixed into a plastic resin melt and molded. For example, a cut glass fiber bundle (CS) obtained by applying and concentrating this treatment agent and a thermoplastic resin melt are mixed in a kneading machine and extruded to form a rod-shaped object, and this rod-shaped object is cut to obtain the obtained product. Using pellets as raw material,
A resin molded article having a desired shape can be obtained by injection molding. Note that when mixing the CS and the thermoplastic resin melt, fillers and pigments can also be mixed at the same time. Although it is not necessarily necessary to coat the present compound on the filler used in combination with CS, it is preferable to coat the filler with the present compound. In addition, without using CS, with thermoplastic resin melt,
It is also possible to mix it with a filler coated with the present compound. In addition, by impregnating glass fiber roving or pine-like material to which this treatment agent has been applied with the thermoplastic resin melt, the contaminants are mixed into the thermoplastic resin melt, and then the resin is molded by press molding. You can get a body. In the present invention, the size and shape of the resin body are not limited, and it does not matter whether it is a finished product, a semi-finished product (for example, a rod-shaped body, a plate-shaped body), or a raw material pellet.
熱可塑性樹脂を溶融成形する際の熱可塑性物質
の分解、変質による着色は熱可塑性樹脂と混入
材、特に補強繊維との界面において著しく、この
着色による吸収光を、蛍光物質の発生する蛍光に
よつて打消す。
又蛍光を紫外線の吸収により発生させるが、紫
外線は不可視光であるため、紫外線の吸収により
着色が生ずることはない。
又、蛍光物質の分解を、次亜リン酸等で防止
し、蛍光物質の分解による着色を防止する。
更に又、そのメカニズは解明されていないが、
混入材表面に被着している次亜リン酸等が、該混
入材を溶融状態の熱可塑性樹脂と混合する際、熱
可塑性樹脂中に移行し、加熱による熱可塑性樹脂
の分解、着色成分の生成を阻止するものと考えら
れる。
このように、蛍光物質と次亜リン酸等を併用す
ることにより、両者の相乗作用によつて極めて好
適な効果を得ることができる。
When thermoplastic resin is melt-molded, coloring due to decomposition and alteration of the thermoplastic substance is noticeable at the interface between the thermoplastic resin and the mixed materials, especially reinforcing fibers, and the light absorbed by this coloring is absorbed by the fluorescence generated by the fluorescent substance. It cancels out. Further, fluorescence is generated by absorption of ultraviolet rays, but since ultraviolet rays are invisible light, coloring does not occur due to absorption of ultraviolet rays. Further, the decomposition of the fluorescent substance is prevented with hypophosphorous acid, etc., and coloring due to the decomposition of the fluorescent substance is prevented. Furthermore, although the mechanism has not been elucidated,
When the mixed material is mixed with a molten thermoplastic resin, hypophosphorous acid, etc. adhering to the surface of the mixed material migrates into the thermoplastic resin, causing the thermoplastic resin to decompose due to heating and coloring components to be removed. It is thought to prevent the formation of In this way, by using a fluorescent substance and hypophosphorous acid, etc., an extremely favorable effect can be obtained due to the synergistic action of the two.
【実施例 １】
ガラス繊維にOSN（蛍光物質、商品名：日本火
薬社製）0.2wt％、酸性次亜リン酸ナトリウム
2.5wt％、ウレタン樹脂5.0wt％、アミノシラン
0.6wt％を含む集木剤を固形分として0.6wt％附与
集束し、ガラス繊維束とし、このガラス繊維束を
切断、乾燥してチヨツプドストランド（CS）と
した。
CSに対する物質及び酸性次亜リン酸ナトリウ
ムの被着量は夫々0.02wt％、0.25wt％、である。
このCSを30重量部、NY6を70重量部混合し、
常法に従いペレツト化した。なお、加熱温度は
250℃であつた。
このペレツトを使用し、インジエクシヨンモー
ルド法により試験片を３個製造し、色相（ａ，ｂ
値及びYI値をJIS Z8722号の方法によつて測定し
た結果を別表に示す。
〈比較例 １〉
実施例１のCSに代え、蛍光物質及び酸性次亜
リン酸ナトリウムを全く含まないこと以外実施例
１と同一のCSを使用し、実施例と同一の実験を
行なつた結果を別表に示す。
〈比較例 ２〉
実施例１のCSに代え、酸性次亜リン酸ナトリ
ウムを含まないこと以外実施例１と同一のCSを
使用し、実施例１と同様な実験を行なつた結果を
別表に示す。
〈比較例 ３〉
実施例１のCSに代え蛍光物質を含まないこと
以外実施例１と同一のCSを使用し実施例１と同
様な実験を行なつた結果を別表に示す。[Example 1] 0.2wt% OSN (fluorescent material, product name: manufactured by Nihon Kapaku Co., Ltd.) and acidic sodium hypophosphite on glass fiber
2.5wt%, urethane resin 5.0wt%, aminosilane
A wood collecting agent containing 0.6 wt% was added as a solid content and bundled to form a glass fiber bundle, and this glass fiber bundle was cut and dried to obtain chopped strands (CS). The amounts of the substance and acidic sodium hypophosphite deposited on CS were 0.02wt% and 0.25wt%, respectively. Mix 30 parts by weight of this CS and 70 parts by weight of NY6,
It was pelletized according to a conventional method. In addition, the heating temperature is
It was 250℃. Using this pellet, three test pieces were manufactured by the injection molding method, and the hue (a, b
The results of measuring the values and YI values using the method specified in JIS Z8722 are shown in the attached table. <Comparative Example 1> Results of conducting the same experiment as in Example 1, using the same CS as in Example 1 except that it does not contain any fluorescent substance or acidic sodium hypophosphite, instead of the CS in Example 1. are shown in the attached table. <Comparative Example 2> In place of the CS in Example 1, the same CS as in Example 1 was used except that it did not contain acidic sodium hypophosphite, and the results of an experiment similar to Example 1 were conducted in a separate table. show. <Comparative Example 3> The results of an experiment similar to Example 1 using the same CS as in Example 1 except that no fluorescent substance was used in place of the CS in Example 1 are shown in the attached table.
【実施例 ２】
ガラス繊維にPHR（蛍光物質、商品名：住友化
学社製）0.1wt％、酸性次亜リン酸ナトリウム
2.5wt％、エポキシ樹脂6.0wt％、アミノシラン
0.6wt％を含む集束剤を固形分として1.0wt％附与
集束し、ガラス繊維束とし、このガラス繊維束を
切断乾燥してチヨツプドストランド（CS）とし
た。CSに対する蛍光物質及び酸性次亜リン酸ナ
トリウムの被着量は夫々0.01wt％、0.25wt％であ
る。
このCS30重量部とPBT70重量部とを混合し常
法に従いペレツト化した。なお、加熱温度は260
℃であつた。このペレツトを用い実施例１と同様
な実験を行なつた結果を別表に示す。
〈比較例 ４〉
実施例２のCSに代え、蛍光物質及び酸性次亜
リン酸ナトリウムを全く含まないこと以外実施例
１と同一のCSを使用し、実施例２と同一の実験
を行なつた結果を別表に示す。
〈比較例 ５〉
実施例２のCSに代え、酸性次亜リン酸ナトリ
ウムを含まないこと以外実施例２と同一のCSを
使用し、実施例２と同様な実験を行なつた結果を
別表に示す。
〈比較例 ６〉
実施例２のCSに代え蛍光物質を含まないこと
以外実施例２と同一のCSを使用し実施例２と同
様な実験を行なつた結果を別表に示す。[Example 2] 0.1wt% PHR (fluorescent material, product name: manufactured by Sumitomo Chemical Co., Ltd.) and acidic sodium hypophosphite on glass fiber
2.5wt%, epoxy resin 6.0wt%, aminosilane
A sizing agent containing 0.6 wt % was added as a solid content of 1.0 wt % and bundled to form a glass fiber bundle, and this glass fiber bundle was cut and dried to obtain chopped strands (CS). The amounts of fluorescent material and acidic sodium hypophosphite deposited on CS were 0.01 wt% and 0.25 wt%, respectively. 30 parts by weight of this CS and 70 parts by weight of PBT were mixed and pelletized according to a conventional method. The heating temperature is 260
It was warm at ℃. An experiment similar to that in Example 1 was conducted using this pellet, and the results are shown in the attached table. <Comparative Example 4> In place of the CS in Example 2, the same CS as in Example 1 was used except that it did not contain any fluorescent substance or acidic sodium hypophosphite, and the same experiment as in Example 2 was conducted. The results are shown in the attached table. <Comparative Example 5> In place of the CS in Example 2, the same CS as in Example 2 was used except that it did not contain acidic sodium hypophosphite, and the results of an experiment similar to Example 2 were conducted in a separate table. show. <Comparative Example 6> The results of an experiment similar to Example 2 using the same CS as in Example 2 except that no fluorescent substance was used in place of the CS in Example 2 are shown in the attached table.
【表】【table】
【表】【table】
樹脂成形体の着色を防止する。このため樹脂成
形体を製造する際白色の顔料を混入した場合には
純白の、又赤、青、黄色等の顔料を混入した場合
には鮮やかな色相の成形体を得ることができる。
Prevents coloring of resin molded objects. Therefore, when producing a resin molded product, if a white pigment is mixed in, a pure white molded product can be obtained, or if a red, blue, yellow, etc. pigment is mixed in, a molded product with a bright hue can be obtained.
Claims (1)
蛍光を発生する蛍光物質を被着させた熱可塑性樹
脂用混入材。 ２ 混入材は、ガラス繊維に次亜リン酸又はその
塩及び蛍光物質を含有する処理剤を附与集束した
ガラス繊維束の切断物である請求項１記載の混入
材。 ３ 次亜リン酸又はその塩及び紫外線を吸収して
蛍光を発生する蛍光物質を被着させた混入材を、
熱可塑性樹脂溶融物中に混入成形してなる樹脂成
形体。 ４ 混入材は、ガラス繊維に次亜リン酸又はその
塩及び蛍光物質を含有する処理剤を附与集束した
ガラス繊維束の切断物である請求項３記載の樹脂
成形体。[Claims] 1. An admixture for a thermoplastic resin coated with hypophosphorous acid or its salt and a fluorescent substance that absorbs ultraviolet light and generates fluorescence. 2. The mixed material according to claim 1, wherein the mixed material is a cut glass fiber bundle obtained by applying and concentrating a treatment agent containing hypophosphorous acid or its salt and a fluorescent substance to glass fibers. 3 Contaminants coated with hypophosphorous acid or its salts and a fluorescent substance that absorbs ultraviolet light and generates fluorescence,
A resin molded body formed by mixing and molding a thermoplastic resin melt. 4. The resin molded article according to claim 3, wherein the mixed material is a cut glass fiber bundle obtained by applying and concentrating a treatment agent containing hypophosphorous acid or its salt and a fluorescent substance to glass fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11687490A JPH0413740A (en) | 1990-05-08 | 1990-05-08 | Admixtures for thermoplastic resins and resin moldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11687490A JPH0413740A (en) | 1990-05-08 | 1990-05-08 | Admixtures for thermoplastic resins and resin moldings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0413740A JPH0413740A (en) | 1992-01-17 |
| JPH0565537B2 true JPH0565537B2 (en) | 1993-09-17 |
Family
ID=14697772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11687490A Granted JPH0413740A (en) | 1990-05-08 | 1990-05-08 | Admixtures for thermoplastic resins and resin moldings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2846123B2 (en) * | 1994-07-16 | 1999-01-13 | ケーニツヒ ウント バウエル−アルバート アクチエンゲゼルシヤフト | Method and apparatus for mounting and clamping a coating on a cylinder of a rotary printing press |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI794146B (en) | 2015-12-01 | 2023-03-01 | 美商阿散德性能材料營運公司 | High molecular weight polyamides and copolyamides with uniform rv and low gel content |
| JP7652985B2 (en) * | 2022-04-13 | 2025-03-27 | 日立Astemo株式会社 | Drive control device for electric motor |
-
1990
- 1990-05-08 JP JP11687490A patent/JPH0413740A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2846123B2 (en) * | 1994-07-16 | 1999-01-13 | ケーニツヒ ウント バウエル−アルバート アクチエンゲゼルシヤフト | Method and apparatus for mounting and clamping a coating on a cylinder of a rotary printing press |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0413740A (en) | 1992-01-17 |
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