公开(公告)号：US3673145A

公开(公告)日：1972-06-27

申请号：US3673145D

申请日：1969-09-02

Applicant: TORAY INDUSTRIES

Inventor： MINAMI MUNEYOSHI ,  TANIGUCHI MASAHARU ,  TSUTSOMI TADAO ,  MURAKAMI MASAKAZO ,  YOSHII TOSHIYA

IPC: C08J3/09 ,  C08G51/28 ,  C08G51/44

CPC classification number: C08J3/091 ,  C08J2379/08

Abstract: Novel polyimide solutions are provided which are obtained by reacting 1,2,3,4-butane tetracarboxylic acid or a functional derivative thereof with an organic diamine for example an aromatic diamine such as diaminodiphenyl ether in certain reaction solvents for example phenols, nitrobenzenes, pyridines, quinolines, N-alkyl lactams and cyanobenzenes at a temperature of from 100* C. to the boiling point of the reaction mixture until a polyimide solution is obtained having an imidization ratio of 5098 percent is obtained. The products thus obtained can be employed as varnishes, to make film coating for electric cable, as adhesives or blended with pigments and the like to make pains.

Abstract translation: 提供了通过使1,2,3,4-丁烷四羧酸或其官能衍生物与有机二胺例如二氨基二苯醚等芳族二胺在某些反应溶剂中反应而得到的新型聚酰亚胺溶液，例如苯酚，硝基苯，吡啶 ，喹啉，N-烷基内酰胺和氰基苯，在100℃至反应混合物的沸点，直至获得具有50-98％亚酰胺化率的聚酰亚胺溶液。 由此获得的产品可以用作清漆，制成电缆的薄膜涂层，作为粘合剂或与颜料等混合以产生疼痛。

公开(公告)号：US3887745A

公开(公告)日：1975-06-03

申请号：US38702373

申请日：1973-08-09

Applicant: TORAY INDUSTRIES

Inventor： YOSHII TOSHIYA ,  SUZUKI MASARU

IPC: C09J7/02 ,  B32B7/00

CPC classification number: B32B27/08 ,  B32B2250/03 ,  B32B2323/10 ,  B32B2405/00 ,  C09J7/29 ,  C09J2201/162 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/31913

Abstract: This invention pertains to an adhesive tape, the base component of which is comprised of a biaxially oriented film of a propylene polymer and a transversely oriented film of a propylene polymer, the melting point of the transversely oriented film being 0.5* 10*C higher than that of the biaxially oriented film and the total thickness of the transversely oriented film being 1.2 - 5.0 times greater than that of the biaxially oriented film.

Abstract translation: 本发明涉及一种胶带，其基本成分由丙烯聚合物的双轴取向膜和丙烯聚合物的横向取向膜组成，横向取向膜的熔点为0.5〜10℃ 而双轴取向膜的总厚度比双轴取向膜的厚度的1.2〜5.0倍。

公开(公告)号：US3629180A

公开(公告)日：1971-12-21

申请号：US3629180D

申请日：1969-01-23

Applicant: TORAY INDUSTRIES

Inventor： YODA NAOYA ,  KURIHARA MASARU ,  DOGOSHI NORIAKI ,  NAKANISHI RYOJI ,  YUMOTO HIROSUKE ,  ITOGA MASAAKI ,  MOCHIZUKI HIROSHI ,  YOSHII TOSHIYA ,  FUJITA SABURO

IPC: C08G73/10 ,  C08G51/50

CPC classification number: C08G73/1007

Abstract: A PROCESS FOR PRODUCING SHAPABLE POLYMERIC COMPOSITIONS HAVING IMPROVED MECHANICAL PROPERTIES IS DESCRIBED WHICH INVOLVES THE HEATING OF A POLYMER CONTAINING POLYAMIDE-ACID RECURRING UNITS IN AN ORGANIC POLYMERIZATION SOLVENT, WHICH SOLVENT ALSO CONTAINS AN AMOUNT OF A PHOSPHOROUS COMPOUND IN THE RANGE OF FROM ABOUT .01% BY WEIGHT TO ABOUT 30% BY WEIGHT UNTIL IMIDE RING CLOSURE IS EFFECTED.