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公开(公告)号：US3321447A
公开(公告)日：1967-05-23
申请号：US40363764
申请日：1964-10-13
Applicant: BASF AG
Inventor： JOACHIM KUNDE , HANS WILHELM , FRIEDRICH MERTES , ERICH SCHWARTZ
IPC: C08G69/16
CPC classification number: C08G69/16
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2.发明授权Process for the production of highly elastic polyurethanes utilizing dihydrazino-di-s-triazine compounds as chain extenders 失效使用二肼基二-s-三嗪化合物作为扩链剂生产高弹性聚氨酯的方法
公开(公告)号：US3301823A
公开(公告)日：1967-01-31
申请号：US41577764
申请日：1964-12-03
Applicant: BASF AG
Inventor： ROBERT GEHM , JOACHIM KUNDE , FRIEDRICH MERTES
IPC: C08G18/10
CPC classification number: C08G18/10 , Y10S528/906 , C08G18/3851
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3.发明授权Polyamides stabilized with inorganic phosphorous acids, fatty acids or the metallic salts thereof 失效用无机亚磷酸，脂肪酸或其金属盐稳定的聚酰胺
公开(公告)号：US3228898A
公开(公告)日：1966-01-11
申请号：US14262261
申请日：1961-10-03
Applicant: BASF AG
Inventor： GERHARD ILLING , ERICH SCHWARTZ , FRIEDRICH MERTES
Abstract: In a process for the production of synthetic linear polyamides with stabilized melt viscosity, 0,001 to 1% by weight of an acid of phosphorus or a metal salt thereof and 0,01 to 2% by weight of an alkane monocarboxylic or alkane dicarboxylic acid or a salt thereof with a metal of Group I or II of the Periodic Table is added thereto prior to the shaping of the polyamide (the weight of the phosphorus acid component in the mixture being less than that of the carboxylic acid component). Specified phosphorus acid components are hypophosphorous, phosphorous, hypodiphosphoric, orthophosphoric, pyrophosphoric, hexametaphosphoric and metaphosphoric acid. Specified linear polyamides are polycaprolactam, polycaprylic lactam, polylauric lactam, polyhexamethylene adipamide, polyoctamethylene sebacamide, polyurethanes and polyureas. Specified alkane carboxylic acids are capric, palmitic, stearic, behenic, undecane dicarboxylic, acetic, caproic, oenanthic, succinic and adipic acid. In the examples:-(1) polycaprolactam is kneaded at 250 DEG to 260 DEG C. with disodium hydrogen phosphite pentahydrate, calcium stearate and di-t-butyl-p-cresol; (2) polycaprylic lactam is homogenized at 260 DEG to 280 DEG C. with calcium stearate and disodium hydrogen phosphite and (3) polyhexamethylene adipamide is kneaded with calcium stearate and disodium hydrogen phosphite.
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