101 |
JPH0363965B2 - |
JP10250083 |
1983-06-08 |
JPH0363965B2 |
1991-10-03 |
KASUGA TAKUZO; ASANO TAKESHI; IKENAGA MASAO; YAMAWAKI MASAMI; TAKEDA YASUYUKI; ICHIMURA KOICHI |
|
102 |
JPH0339097B2 - |
JP21407982 |
1982-12-08 |
JPH0339097B2 |
1991-06-12 |
HERUBERUTO AAMAN; GERUHARUTO MORUROTSUKU |
|
103 |
Acetal polymer blend |
JP9132590 |
1990-04-05 |
JPH02294353A |
1990-12-05 |
KAATO EFU UISUBURAN; HONKIYUU KIMU; JIYOOJI ERU KORINZU; DAIAN TAAROON |
PURPOSE: To provide an acetal polymer blend which can be molded into products possessing excellent elasticity and adhesion and comprises a crystalline polyacetal and a specified noncrystalline rubber elastic copolymer.
CONSTITUTION: This acetal polymer blend comprises: (A) a crystalline acetal polymer, pref. homopolymer, comprising not less than 85% repeating oxymethylene units, or a copolymer comprising repeating oxy(higher)alkylene units; and (B) a noncrystalline, rubber elastic copolymer incorporated into the component (A), the component (B) comprising 15 to 45 mol.% trioxane and 55 to 85 mol.% 1,3-dioxolane, the amt. of the trioxane and 1,3-dioxolane being values each based on the total amt. of trioxane and 1,3-dioxolane, and 1,4- butanediol diglycidyl ether or butadiene epoxide in an amt. of 0.005 to 0.15 wt.% based on the total wt. of the copolymer, the amt. of the component (B) being small, pref. 5 to 30 wt.% based on 95 to 70 wt.% component (A).
COPYRIGHT: (C)1990,JPO |
104 |
Elastomeric acetal polymer |
JP23551089 |
1989-09-11 |
JPH02113010A |
1990-04-25 |
JIYOOJI ERU KORINZU; KAATO EFU UISUBURAN; HONKIYUU KIMU |
PURPOSE: To provide a novel copolymer which consists of trioxane, dioxolane, and butadiene epoxide in specified ratios, and is useful as a binder for improving the adhesion of a crystalline acetal polymer since it shows a strong interaction with the polymer.
CONSTITUTION: This copolymer is obtained by using (A) trioxane, (B) 1,3- dixolane, and (C) 1,4-butanediol diglycidyl ether or butadiene diepoxide as bifunctional monomer so that the component A and the component B are 15-45 mole % and 55-85 mole %, respectively, on the basis of the total quantity of the components A and B, and the component C is 0.005-0.15 wt.% on the basis of the total weight of the copolymer. This copolymer is obtained by mixing the components A-C together with a cation polymerizing catalyst (e.g.: p- nitrobenzenediazonium tetrafluoroborate or the like) under inert atmosphere in dry state.
COPYRIGHT: (C)1990,JPO |
105 |
Acetal copolymers with backbone double bonds |
JP9277889 |
1989-04-12 |
JPH0236225A |
1990-02-06 |
NAN ROO YANGU; ANDORIYUU AUAABATSUKU; JIEIMUZU ERU POORU; ROOZU PESUSE; SHIYAIAN ESU WANGU |
PURPOSE: To provide an acetal copolymer excellent in stability and crystallinity, having a functional group usable for denaturation, and capable of chemically bonding a stabilizer, impact resistance improving agent or surface denaturing agent by reacting trioxane with dioxp-en.
CONSTITUTION: To (A) trioxane is added (B) 1.5-4.0 mole % of 1,3-dioxep-5-en to copolymerize them to provide an intended copolymer.
COPYRIGHT: (C)1990,JPO |
106 |
Production of acetal polymer or copolymer |
JP32924087 |
1987-12-25 |
JPH01170610A |
1989-07-05 |
YAMAMOTO KAORU; SANO HIROYUKI; CHINO SHUICHI |
PURPOSE: To provide the title polymer having a high mol. wt. in an extremely small usage of a catalyst in a high polymerization yield and, in the case of copolymerization, provide a copolymer reduced in the unstable terminal portions thereof, by using a hetero polyacid (acidic salt) as a polymerization catalyst.
CONSTITUTION: The objective polymer is provided by polymerizing formaldehyde or a cyclic oligomer thereof or copolymerizing these main monomers with other copolymerizable monomers with a hetero polyacid or an acidic salt thereof (preferably silicomolybdic acid, phosphotungstic acid, etc.) as a polymerization catalyst. The above-mentioned polymerization catalyst is preferably used in an amount of 0.2W50ppm based on the total amount of the monomers to be polymerized. It is further preferable to add ammonia, etc., as a catalyst deactivator to the polymerization-finished reaction system to neutralize and deactivate the polymerization catalyst.
COPYRIGHT: (C)1989,JPO&Japio |
107 |
JPS6324610B2 - |
JP17098983 |
1983-09-16 |
JPS6324610B2 |
1988-05-21 |
ASANO TAKESHI; OKADA TSUNEYOSHI; NAKATSUJI HIROSHI |
|
108 |
JPS6213369B2 - |
JP10905283 |
1983-06-17 |
JPS6213369B2 |
1987-03-26 |
KASUGA TAKUZO; ASANO TAKESHI; IKENAGA MASAO; YAMAWAKI MASAMI; TAKEDA YASUYUKI; ICHIMURA KOICHI |
|
109 |
JPS6213367B2 - |
JP6110679 |
1979-05-18 |
JPS6213367B2 |
1987-03-26 |
SUGIO AKITOSHI; AMAMYA AKIRA; KUNII TADASHI; FURUSAWA TOMONORI; TAKEDA MUTSUHIKO; TANAKA KATSUMASA; UMEMURA TOSHIKAZU |
|
110 |
Polymeric acetal carboxylate composition |
JP14440785 |
1985-07-01 |
JPS6119653A |
1986-01-28 |
YUETEINGU CHIYOU; DEBITSUDO REI DAIROFU |
|
111 |
Continuous monopolymerization of trioxane or continuous copolymerization of trioxane with compound copolymerizable with trioxane |
JP21407982 |
1982-12-08 |
JPS58104915A |
1983-06-22 |
HERUBERUTO AAMAN; GERUHARUTO MORUROTSUKU |
|
112 |
Manufacture of high polymer oxymethylene copolymer under presence of impurities |
JP12484581 |
1981-08-11 |
JPS5753518A |
1982-03-30 |
RUFUUZU ESU JIYOONZU; FURANKU EMU BERAJIINERII |
|
113 |
JPS5638603B2 - |
JP8187172 |
1972-08-17 |
JPS5638603B2 |
1981-09-08 |
|
|
114 |
Stabilized oxymethylene copolymer conposition |
JP9407579 |
1979-07-24 |
JPS5618640A |
1981-02-21 |
SUGIO AKITOSHI; AMAMIYA AKIRA; KIMURA MASAHARU; OOTSUKI RIYOUJI; KAWAGUCHI SEIICHI |
PURPOSE:An oxymethylene copolymer composition exhibiting improved heat resistance during molding, prepared by incorporating, into an oxymethylene copolymer, an amine-substituted triazine, a sterically hindered phenol and a metal-containing compound. CONSTITUTION:Into an oxymethylene copolymer are incorporated (A) an amino- substituted triazine of formula I, wherein R1, R2 and R3 are each H, a halogen atom, OH, alkyl, alkoxyl, aryl, hydrogenated aryl, amino or substituted amino, (B) a sterically hindered phenol of formula II, wherein R4 and R5 are each alkoxy, substituted alkyl or substituted triazole and R6 is alkyl, substituted alkyl, alkoxyl or substituted amino and (C) a metal-containing compound which is a hydroxide, inorganic acid salt, carboxylic acid salt or alkoxide of an alkli metal which is sodium or potassium or of an alkaline earth metal which is magnesium, calcium or barium. |
115 |
Continuous polymerization of oxymethylene (co) polymer |
JP6110679 |
1979-05-18 |
JPS55164212A |
1980-12-20 |
SUGIO AKITOSHI; AMAMIYA AKIRA; KUNII TADASHI; FURUSAWA TOMONORI; TAKEDA MUTSUHIKO; TANAKA KATSUMASA; UMEMURA TOSHIKAZU |
PURPOSE: To eliminate the vaporization loss of a raw material, the deterioration of the polymer by heat, and the clogging of the recovery line due to the waste gas formed in the polymerization, by polymerizing trioxane, etc. in a specific reactor, and by stopping the reaction with a tertiary phosphine compound.
CONSTITUTION: (A) Trioxane and/or a cyclic ether and/or a cyclic acetal and (B) boron trifluoride (hydrate) and/or its coordination compound with a compound containing O or S as a catalyst are fed to the feed inlet 14 of the continuous closed agitated mixer having no opening to the air other than the inlet 14 and the product outlet 12, and polymerized. The resulting polymer is mixed with (C) a tertiary phosphine compound of the formula PR
1R
2R
3 (R
1, R
2 and R
3 are 1W18C alkyl or aryl groups) from the inlet 15 to stop the polymerization, and the waste gas formed is discharged from the suction hole 13. Thus, the product is taken out of the opening 12.
COPYRIGHT: (C)1980,JPO&Japio |
116 |
JPS5337272B2 - |
JP1216176 |
1976-02-06 |
JPS5337272B2 |
1978-10-07 |
|
|
117 |
Process for producing granular oxymethylene polymer |
JP5085777 |
1977-05-04 |
JPS52134699A |
1977-11-11 |
GIYUNTERU ZETSUKUSUTOROO; KARURUHAINTSU BURUKU; HERUMUUTO SHIYURAAFU; HANSU DEIITERU ZAABERU; ARUUIN HERURERU |
|
118 |
Toriokisannonetsukasoseikotaitaahorimaanoseiho |
JP1216176 |
1976-02-06 |
JPS51103996A |
1976-09-14 |
HERUBERUTO AAMAN; GERUHARUTO MORUROTSUKU |
|
119 |
Okishimechirenjugotaiokisotoshitaseikeiyososeibutsu oyobi sonoseizohoho |
JP12387675 |
1975-10-16 |
JPS5164560A |
1976-06-04 |
KARURUHAINTSU BURUKU; GYUNTERU KIRUSHU |
|
120 |
JPS4953286A - |
JP7666373 |
1973-07-09 |
JPS4953286A |
1974-05-23 |
|
|