公开(公告)号：JPH05287124A

公开(公告)日：1993-11-02

申请号：JP8399192

申请日：1992-04-06

Applicant: MITSUI PETROCHEMICAL IND

Inventor： MURATA KAZUHIKO ,  OKADA KEIJI ,  TOJO TETSUO ,  KAWASAKI MASAAKI ,  TAKADA TOSHIMASA

IPC: B60C1/00 ,  C08L9/00 ,  C08L21/00 ,  C08L23/18 ,  C08L23/20

Abstract: PURPOSE:To obtain the subject composition excellent in strength characteristics, abrasion resistance and braking performance on wet road and small in rolling resistance by blending a specific higher (alpha-olefin based copolymer rubber with a diene based rubber at a specific ratio. CONSTITUTION:The objective composition is obtained by blending (A) a higher alpha-olefin based copolymer rubber consisting of (i) a 620C alpha-olefin (preferably hexene-1, octene-1 or decene-1), (ii) an alpha,omega-diene of formula I [(n) is 1-3; R and R are H or 1-8C alkyl) (e.g. 1,4-pentadiene) and (iii) a conjugated diene of formula II [(n) is 1-5; R is 1-4C alkyl; R and R are R , with the proviso that R and R are not simultaneously H] (e.g. 4-methyl-1,4-hexadiene) with (B) a diene based rubber (preferably natural rubber or isoprene rubber) so that the weight ratio of the component A/the component B may be (1/99) to (50/50).

公开(公告)号：JPH05247286A

公开(公告)日：1993-09-24

申请号：JP5001092

申请日：1992-03-06

Applicant: MITSUI PETROCHEMICAL IND

Inventor： MURATA KAZUHIKO ,  OKADA KEIJI ,  TOJO TETSUO ,  KAWASAKI MASAAKI ,  TAKADA TOSHIMASA

IPC: C08F210/14 ,  C08F36/00 ,  C08F210/00 ,  C08F236/20 ,  C08J5/00 ,  C08L23/18

Abstract: PURPOSE:To produce the title molding excellent in resistances to thermal aging and dynamic fatigue by molding and vulcanizing a specific higher alpha-olefin copolymer rubber obtd. from a higher alpha-olefin, an alpha,omega-diene, and a nonconjugated diene. CONSTITUTION:A 6-20C higher alpha-olefin (e.g. hexene-1)(A), an alpha,omega-diene (B) of formula I (wherein n is 1-3; and R and R are each H or 1-8C alkyl)(e.g. 1,4-hexadiene) and a nonconjugated diene (C) of formula II (wherein n is 1-5; R is 1-4C alkyl; and R and R are each H or 1-8C alkyl provided that they are not simultaneously H)(e.g. 4-methyl-1,4-hexadiene) are copolymerized in a wt. ratio of monomer A to monomer B of (95:5)-(50:50) and in a molar ratio of monomer C to the sum of the three monomers of 0.01-30%, giving a higher alpha-olefin copolymer rubber having an intrinsic viscosity at 135 deg.C in decalin of 1-10 dl/g. The rubber is molded and vulcanized to give the title molding.

公开(公告)号：JPH05247284A

公开(公告)日：1993-09-24

申请号：JP5000892

申请日：1992-03-06

Applicant: MITSUI PETROCHEMICAL IND

Inventor： MURATA KAZUHIKO ,  OKADA KEIJI ,  TOJO TETSUO ,  KAWASAKI MASAAKI ,  TAKADA TOSHIMASA

IPC: C08L19/00 ,  C08L21/00 ,  C08L23/04 ,  C08L23/18

Abstract: PURPOSE:To prepare the title compsn. excellent in strengths, heat resistance, weatherability, vibration-damping properties, etc., by mixing a specific higher alpha-olefin copolymer with an ethylene-alpha-olefin copolymer in a specified wt. ratio. CONSTITUTION:A higher %a-olefin copolymer is produced by copolymerizing a 6-20C higher alpha-olefin (e.g. octene-1), an alpha,omega-diene of formula I (wherein n is 1-3; and R and R are each H or 1-8C alkyl)(e.g. 1,4-hexadiene).and a nonconjugated diene of formula II (wherein n is 1-5; R is 1-4C alkyl; and R and R are each l H or 1-8C alkyl provided that they are not simultaneously H)(e.g. 4-methyl-1,4-hexadiene). The title compsn., suitable as a vibration-damping rubber, is prepd. by mixing the copolymer with an ethylene/3-6C alpha-olefin copolymer in a wt. ratio of (5:95)-(95:5).

公开(公告)号：JPH05247283A

公开(公告)日：1993-09-24

申请号：JP5000792

申请日：1992-03-06

Applicant: MITSUI PETROCHEMICAL IND

Inventor： MURATA KAZUHIKO ,  OKADA KEIJI ,  TOJO TETSUO ,  KAWASAKI MASAAKI ,  TAKADA TOSHIMASA

IPC: C08L19/00 ,  C08L9/00 ,  C08L21/00 ,  C08L23/18

Abstract: PURPOSE:To prepare the title compsn. excellent in processibility, strengths, weatherability, adhesion to fiber, etc., by mixing a specific higher alpha-olefin copolymer with a diene rubber in a specified wt. ratio. CONSTITUTION:A higher alpha-olefin copolymer is produced by copolymerizing a 6-20C higher alpha-olefin (e.g. tetradecene-1), an alpha,omega-diene of formula I (wherein n is 1-3; and R and R are each H or 1-8C alkyl)(e.g. 1,4-hexadiene), and a nonconjugated diene of formula II (wherein n is 1-5; R is 1-4C alkyl; and R and R are each H or 1-8C alkyl provided that they are not simultaneously H) (e.g. 4-methyl-1, 4-hexadiene). The title compsn. is prepd. by mixing the copolymer with a diene rubber in a wt. ratio of (5:95)-(95:5).

公开(公告)号：JPH04248836A

公开(公告)日：1992-09-04

申请号：JP773391

申请日：1991-01-25

Applicant: MITSUI PETROCHEMICAL IND

Inventor： IKEDA AKIO ,  TAKADA TOSHIMASA ,  YAMAMOTO SANEHIRO

IPC: C08G69/02 ,  C08G69/26 ,  C08G69/28

Abstract: PURPOSE:To obtain a polyamide resin composition excellent in toughness, especially tensile elongation and impact strength by polycondensing a specific low- order condensate in a molten state in the presence of poly epsilon-caprolactam while applying shearing stress thereto. CONSTITUTION:The objective resin composition is obtained by heating (A) 60-100mol% recurring units composed of terephthalic acid component units and diamine component units having a 4-25C alkylene group such as 1,6- diaminohexane and (B) 0-40mol% aromatic dicarboxylic acid component units other than the terephthalic acid and diamine component units having the 4-25C alkylene group in the presence of water under pressurizing conditions, providing a low-order condensate, then heating the resultant low-order condensate in a molten state and further carrying out polycondensing reaction in the presence of a poly epsilon-caprolactam such as nylon 6 while applying shearing force thereto.

公开(公告)号：JPH04236224A

公开(公告)日：1992-08-25

申请号：JP512891

申请日：1991-01-21

Applicant: MITSUI PETROCHEMICAL IND

Inventor： UEKI HIROMI ,  TAKADA TOSHIMASA

IPC: C08G63/181 ,  C08G63/19 ,  C08G63/82 ,  C08G63/85

Abstract: PURPOSE:To obtain the title polyester having excellent hue, high strength and heat resistance and useful as industrial material, etc., by reacting an aromatic dicarboxylic acid with an aromatic diol in the presence of a specific tin compound. CONSTITUTION:At least one kind of aromatic dicarboxylic acid (e.g. terephthalic acid) expressed by formula I (Arn1 is 6-20C arylene) is reacted with at least one kind of aromatic diol (e.g. hydroquinone) expressed by formula II (Arn2 is 6-28C arylene) and diarylcarbonate in the presence of a tin compound (preferably used at an amount of 0.01-1mol% based on 100mol% aromatic diol) to provide the objective polyester.

公开(公告)号：JPH048730A

公开(公告)日：1992-01-13

申请号：JP11101590

申请日：1990-04-26

Applicant: MITSUI PETROCHEMICAL IND

Inventor： TAKADA TOSHIMASA ,  IKEDA AKIO

IPC: C08G69/28 ,  C08G69/04

Abstract: PURPOSE:To prepare a polyamide useful for clothes, industrial fibers, etc., and having a stable quality by melt-polymerizing an oligomer prepared by the polymerization of a specific dicarboxylic acid with hexamethylenediamine in the presence of a wax. CONSTITUTION:For example, dicarboxylic acids containing terephthalic acid and a 4-12C aliphatic dicarboxylic acid (preferably cinnamic acid) are polymerized with hexamethylenediamine in the presence of a stabilizer (preferably potassium phosphite) in water preferably in nitrogen atmosphere under heated and pressurized conditions to prepare an oligomer having an intrinsic viscosity of preferably 0.1-0.2dl/g. The prepared oligomer is mixed with a wax (preferably polyethylene wax) and melt-polymerized to provide the objective polyamide having a large 6T unit content.

公开(公告)号：JPH03281532A

公开(公告)日：1991-12-12

申请号：JP8234390

申请日：1990-03-29

Applicant: MITSUI PETROCHEMICAL IND

Inventor： YAMAMOTO SANEHIRO ,  TAKADA TOSHIMASA

IPC: C08G69/26 ,  C08K7/02 ,  C08L77/06

Abstract: PURPOSE:To obtain the title composition having high heat-resistant rigidity, wide temperature range of molding, low water absorption ratio, excellent mechanical strength, impact resistance, etc., containing an aromatic polyamide comprising specific component units in a specific ratio. CONSTITUTION:The objective polyamide consisting of (A) a dicarboxylic acid component unit comprising 50-60mol% terephthalic acid component unit and 40-50mol% preferably 4-12C aliphatic dicarboxylic acid component unit and (B) a diamine component unit and/or an alicyclic alkylenediamine component unit and having 0.5-3.0dl/g intrinsic viscosity [eta] measured in conc. sulfuric acid at 30 deg.C.

公开(公告)号：JPH03275762A

公开(公告)日：1991-12-06

申请号：JP7591790

申请日：1990-03-26

Applicant: MITSUI PETROCHEMICAL IND

Inventor： ABE YOSHIHARU ,  ISHIMARU ETSUJI ,  TAKADA TOSHIMASA

IPC: C08L23/26 ,  C08L51/06 ,  C08L77/00

Abstract: PURPOSE:To prepare the subject composition having improved toughness, impact resistance, high temperature rigidity, etc., and low water absorbing constant by mixing a low mol.wt. poly amide with a polar group-containing polyolefin under a specific condition. CONSTITUTION:(A) A poly amide low polycondensate or low polymeric compound having an intrinsic viscosity of 0.01-0.5dl/g and containing lactam component units and/or aliphatic amino carboxylic acid component units is mixed with (B) a polar group-containing poly olefin prepared by grafting 0.01-10 pts.wt. of a polar group-containing unsaturated compound to 100 pts.wt. of a poly olefin in a ratio of 5:95-98:2, preferably 20:80-95:5, in a melting state with imparting a shear stress, thereby providing a poly amide low poly condensate (salt) composition.

公开(公告)号：JPH03231965A

公开(公告)日：1991-10-15

申请号：JP8521090

申请日：1990-03-30

Applicant: MITSUI PETROCHEMICAL IND

Inventor： YAMAMOTO SANEHIRO ,  TAKADA TOSHIMASA

IPC: C08K7/02 ,  C08L77/00

Abstract: PURPOSE:To provide a polyamide resin composition having a wide molding temperature range, low water absorption degree, excellent heat-resistant rigidity, mechanical strength, etc., by compounding an aromatic polyamide comprising specific component units with a specified fibrous filler in a specific amount. CONSTITUTION:The objective composition comprises (A) 100 pts.wt. of an aromatic polyamide having an intrinsic viscosity of 0.5-3dl/g and comprising A1: dicarboxylic acid with comprising 30-60mol% of terephthalic acid, 40-70mol% of an aliphatic dicarboxylic acid (preferably 4-12C aliphatic dicarboxylic acid) and, if necessary, 0-30mol% of an aromatic dicarboxylic acid excluding terephthalic acid (A2): an aliphatic and/or an alicyclic alkylene diamine, preferably a 6-18C straight chains aliphatic alkylenediamine units, and (B) 0.5-200 pts.wt. of a fibrous filler having an average length of 0.1-20mn and selected from wholly aromatic polyamide fiber, glass fiber, carbon fiber, boron fiber, alumina fiber and metal fiber.