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1.发明授权Copolymers of butadiene and/or copolymerizable carboxylic nitriles and other monomers which resist yellowing 失效二苯乙烯和/或可共聚的羧甲基纤维素和其他单体的共聚物
公开(公告)号：US3637596A
公开(公告)日：1972-01-25
申请号：US3637596D
申请日：1969-06-03
Applicant: BASF AG
Inventor： GULBINS KLAUS , WILHELM HANS , HARTMANN HEINRICH , ECKELL ALBRECHT
IPC: C08F236/04 , C08F15/38 , C08F45/60
CPC classification number: C08F236/04
Abstract: COPOLYMERS WHICH DO NOT BECOME YELLOW AT ALL OR ONLY BECOME YELLOW AFTER A LONG TIME AND WHICH ARE BASED ON BUTAIDIENE AND/OR CARBOXYLIC NITRILES COPOLYMERIZABLE THEREWITH AND CONTAIN SMALL AMOUNTS OF A COLORED COMPOUN WHICH ABSORBS LIGHT IN THE WAVELENGTH RANGE FROM 570 TO 605 MILLMICRONS AND WHICH BEARS AT LEAST ONE COPOLYMERIABLE GROUP.
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