公开(公告)号：US3663629A

公开(公告)日：1972-05-16

申请号：US3663629D

申请日：1970-08-13

Applicant: HOECHST AG

Inventor： FISCHER HARTMUT

IPC: C07C29/149 ,  C07C31/34

CPC classification number: C07C29/149 ,  C07C31/38

Abstract: THE HYDROGENATION OF PERFLUOROALKANE CARBOXYLIC ACIDS AND THE LOWER ALKANOL ESTERS THEREOF AT ELEVATED TEMPERATURES AND PRESSURES WITH A RUTHENIUM CATALYST IN AN AQUEOUS SYSTEM YIELDS PURE 1,1-DIHYDRO-PERFLUORO ALKANOLS IN HIGH YIELDS. THE PRODUCTS ARE USEFUL INTERMEDIATES, E.G. FOR THE SYNTHESIS OF WATER- AND OIL REPELLENT AGENTS.

公开(公告)号：US3894995A

公开(公告)日：1975-07-15

申请号：US31794372

申请日：1972-12-26

Applicant: HOECHST AG

Inventor： RESKE ECKART ,  BRINKMANN LUDWIG ,  FISCHER HARTMUT ,  ROHRSCHEID FREIMUND

IPC: C08G69/36 ,  C08G20/20

CPC classification number: C08G69/36

Abstract: Transparent polyamides are produced by polycondensing mixtures of isomeric amino-methyl amino-propyl norbornanes or mixtures thereof with aliphatic, cycloaliphatic, aromatic or aromatic aliphatic diamines and aliphatic, cycloaliphatic or aromatic dicarboxylic acids or mixtures of the said dicarboxylic acids with amino carboxylic acids.

Abstract translation: 透明聚酰胺通过将异构氨基 - 甲基氨基 - 丙基降冰片烷或其混合物与脂族，脂环族，芳族或芳族脂族二胺和脂肪族，脂环族或芳族二羧酸或所述二羧酸与氨基羧酸的混合物进行缩聚来制备。

公开(公告)号：US3876585A

公开(公告)日：1975-04-08

申请号：US30620272

申请日：1972-11-14

Applicant: HOECHST AG

Inventor： RESKE ECKART ,  BRINKMAN LUDWIG ,  FISCHER HARTMUT ,  ROHRSCHEID FREIMUND

IPC: C08G69/00 ,  C08G69/26 ,  C08G69/36 ,  C08G20/20

CPC classification number: C08G69/36

Abstract: There are disclosed and claimed novel polyamides having improved properties such as high transparency and second order transition temperatures in combination with good mechanical and electrical properties at relatively high temperatures. These polyamides are derived from bis-aminomethyl-norbonanes and aliphatic or cycloaliphatic or aromatic or aromaticaliphatic diamines, aliphatic or aromatic dicarboxylic acids. and amino carboxylic acids.