公开(公告)号：US3905945A

公开(公告)日：1975-09-16

申请号：US34917673

申请日：1973-04-09

Applicant: BRIDGESTONE TIRE CO LTD

Inventor： ISEDA YUTAKA ,  KITAYAMA MOTOZUMI ,  ODAKA FUMIO ,  ANZAI SHIRO

IPC: C07D263/20 ,  B01J31/00 ,  B01J31/24 ,  C07B61/00 ,  C07D263/22 ,  C08G18/00 ,  B01J31/18 ,  C08G18/16 ,  C08G18/18

CPC classification number: B01J31/1845 ,  B01J31/1875 ,  B01J2231/34 ,  B01J2231/48 ,  B01J2531/22 ,  C07D263/22 ,  C08G18/003

Abstract: A process for preparing oxazolidones is provided by reacting an epoxide with an isocyanate in the presence of a catalytic amount of a magnesium halide/phosphine oxide complex. The reaction products thus produced can be used in a variety of applications. The polyoxazolidones obtained from polyepoxides and polyisocyanates can be used as liquid rubber materials, high temperature resistant resinous materials and the like.

Abstract translation: 通过在催化量的卤化镁/氧化膦络合物的存在下使环氧化物与异氰酸酯反应来提供制备恶唑烷酮的方法。 由此生产的反应产物可用于各种应用。 由聚环氧化物和多异氰酸酯得到的聚恶唑烷酮可以用作液体橡胶材料，耐高温树脂材料等。

公开(公告)号：US3897396A

公开(公告)日：1975-07-29

申请号：US51919474

申请日：1974-10-30

Applicant: BRIDGESTONE TIRE CO LTD

Inventor： ISHII MICHIO ,  WATABE YOJI ,  ISEDA YUTAKA

IPC: C08G18/00 ,  C08G18/10 ,  C08G18/16 ,  C08G18/65 ,  C08G22/34

CPC classification number: C08G18/168 ,  C08G18/10 ,  C08G18/3237

Abstract: The cure rate of polyurethaneurea reaction mixtures is accelerated by the use of alkyl and/or alkoxyl substituted benzoic acids. Improvement in demolding time is achieved without reducing pot-life.

Abstract translation: 通过使用烷基和/或烷氧基取代的苯甲酸来加速聚氨酯脲反应混合物的固化速度。 脱模时间的提高不会降低使用寿命。

公开(公告)号：US3919180A

公开(公告)日：1975-11-11

申请号：US38918573

申请日：1973-08-17

Applicant: BRIDGESTONE TIRE CO LTD

Inventor： FURUKAWA JUNJI ,  ISEDA YUTAKA ,  HAGA KAZUO ,  IRAKO KOICHI

IPC: C08F220/44 ,  C08F236/04 ,  C08F4/12 ,  C08F4/16 ,  C08F4/20 ,  C08F4/52

CPC classification number: C08F236/04 ,  C08F10/00 ,  C08F220/44 ,  C08F4/62 ,  C08F4/68 ,  C08F4/6421

Abstract: Multi-component alternating copolymers having a ratio of the total moles of donor monomer units of conjugated dienes, arylsubstituted ethylenically unsaturated hydrocarbons or ethylenically unsaturated hydrocarbons to the total moles of acceptor monomer units of acrylonitrile, methacrylonitrile or esters of Alpha , Beta -unsaturated carboxylic acids being substantially 1 : 1, said donor monomer units and said acceptor monomer units being bonded alternately are produced by copolymerizing a monomer (a) of conjugated dienes having 4 to 10 carbon atoms, a conjugated polar ethylenically unsaturated monomer (b) of acrylonitrile, methacrylonitrile or esters of Alpha , Beta -unsaturated carboxylic acids and at least one monomer (c) of acrylonitile, methacrylonitrile, esters of Alpha , Beta -unsaturated carboxylic acids, conjugated dienes arylsubstituted ethylenically unsaturated hydrocarbons or ethylenically unsaturated hydrocarbons, said monomer (c) being different from the monomers (a) and (b), at a temperature of 100*C to 100*C in liquid state, in the presence of a catalyst prepared from a component (A): at least one transition metal compound selected from compounds of transition metals of the Groups IV and V in the Periodic Table and a component (B): an aluminum-containing component selected from the group consisting of aluminum compounds having the general formulae

公开(公告)号：US3870620A

公开(公告)日：1975-03-11

申请号：US10856371

申请日：1971-01-21

Applicant: BRIDGESTONE TIRE CO LTD

Inventor： ONISHI AKIRA ,  YUKUTA TOSHIO ,  ISEDA YUTAKA ,  IWAMI KOUICHI

IPC: C08F2/00 ,  C08F2/50 ,  C08F220/44 ,  C08F236/00 ,  C08F236/04 ,  C08D1/00 ,  C08F1/16

CPC classification number: C08F220/44

Abstract: An alternating copolymer of butadiene and acrylonitrile is effectively manufactured without using expensive catalysts which are often dangerous and difficult to be completely removed so as to deteriorate the resulting copolymers by photopolymerization in the presence of a particular sensitizer system which is selected from a group consisting of some benzenic aromatic hydrocarbons and halides thereof, some polynuclear aromatic hydrocarbons and halides thereof, some heterocyclic compounds, and aromatic- or aliphatic-azoic and aminic hydrocarbon compounds, and some ketonic, glyoxalic and aldehydic compounds, in the amount of 1/1010 to 1/4 mole per 1 mole of the total monomers as charged, with radiating light of the wave length ranging from 2,000 to 6,000 Angstrom.

Abstract translation: 有效地制造丁二烯和丙烯腈的交替共聚物，而不使用常常是危险的并且难以完全除去的昂贵的催化剂，以便在特定的敏化剂体系存在下，通过光聚合使所得的共聚物劣化，所述敏化剂系统选自一些 苯并芳香烃及其卤化物，一些多核芳烃及其卤化物，一些杂环化合物，芳族或脂族 - 偶氮和氨基烃化合物，以及一些酮，乙醛酸和醛化合物，其量为1/1010至1 / 4摩尔每1摩尔的总单体带电，波长为2000至6,000埃的辐射光。