公开(公告)号：EP0140419A3

公开(公告)日：1986-02-12

申请号：EP84201364

申请日：1984-09-21

申请人： STAUFFER CHEMICAL COMPANY

发明人： Fesman, Gerald

IPC分类号： C08L75/04 ,  C08K05/52 ,  C08K05/46 ,  C08K05/36 ,  C08J09/14

CPC分类号： C08J9/0014 ,  C08J2375/04 ,  C08K5/524 ,  C08L75/04

摘要： Polyurethane foams prepared with halogenated phosphoric acid flame retardant have low scorch and surface discoloration when prepared in the presence of a composition containing phenothiazine, 4,4'-thio-bis-(6-tertiary butyl meta cresol), and organophosphite.

公开(公告)号：EP0090555A3

公开(公告)日：1984-02-29

申请号：EP83301495

申请日：1983-03-17

申请人： CRODA SYNTHETIC CHEMICALS LIMITED

发明人： Scott, Gerald ,  Al-Malaika, Sahar Nadum

IPC分类号： C08K05/00 ,  C08K05/36 ,  C08K05/51 ,  C08L23/02

CPC分类号： C08K5/36 ,  C08K5/00 ,  C08K5/5398

摘要： A process for improving the stability of a polymer comprises mixing the polymer with a sulphurcontaining compound under conditions which cause oxidation of the compound, and adding an ultra-violet stabiliser to the polymer. Oxidation may be achieved by conducting the mixing in closed apparatus, in the presence of a peroxide, or in apparatus open to the atmosphere. The uv stabiliser may be added before mixing, e.g. chemically incorporated in the sulphur-containing compound.

公开(公告)号：EP0090530A3

公开(公告)日：1984-02-08

申请号：EP83301313

申请日：1983-03-09

申请人： UNIROYAL, INC.

发明人： Nemzek, Thomas Lloyd ,  Geelan, Brendan John

IPC分类号： C08K05/20 ,  C08K05/34 ,  C08K05/36 ,  C08K05/53

CPC分类号： C08K5/375 ,  C08K5/20 ,  C08K5/3435 ,  C08K5/5333 ,  C08K5/00 ,  C08K5/36

摘要： A non-yellowing antioxidant-UV stabilizer combination especially useful in AES polymers comprising
(A) at least one antioxidant selected from:
(i) a thiodialkylene bis-(3,5-dialkyl-4-hydroxy) hydrocinnamate antioxidant; (ii) an N,N'-alkylene bis-(3,5-dialkyl-4-hydroxy) hydro- cinnamamide antioxidant; (iii) an O,O-dialkyl-3,5-dialkyl-4-hydroxybenzyl phosphonate antioxidant; (iv) an oxamidobis alkyl (3,5-dialkyl-4-hydroxyphenyl) propionate antioxidant; and (v) a [3-(3,5-dialkyl-4-hydroxyphenyl)propionamido]alkyl stearate antioxidant; and (B) a UV stabilizer package comprising:
(vi) at least one UV stabilizer of the hindered amine type, with or without (vii) at least one UV absorber.

公开(公告)号：EP0004711A3

公开(公告)日：1979-11-14

申请号：EP79300357

申请日：1979-03-08

申请人： Vulnax International Limited

发明人： Ashworth, Brian Thomas ,  Brooks, John Langshaw ,  Harper, David John

IPC分类号： C08L21/00 ,  C08K05/36 ,  C08K05/50

CPC分类号： C08K5/39 ,  C08K5/5398 ,  C08L21/00

摘要： In the cross-linking of polymers containing ethylenic unsaturation, especially natural and synthetic rubbers of the isoprene or styrene-butadiene series, S-acyl derivatives of N-substituted thiohydroxylamines, previously known to be useful as accelerators for vulcanisation by sulphur or sulphur donors, can be used themselves as sole vulcanisation agents. The preferred compounds for this purpose are the N-dithiocarbamoyl derivatives of amines, amides or imides, e.g. S-(N',N'-dimethylamino)-N,N-dimethyldithiocarbamate, S-(acetylamino) N,N-diethyldithiocarbamate or S-(phthalimido)-di-n-butyldithiocarbamate. Typical advantages of the resultant rubbers are better resistance to heat ageing and resistance to compression set when compared with sulphur cured rubbers and greater processing safety than TMTD-cured rubbers.

摘要翻译： 在含有烯属不饱和基团的聚合物，特别是异戊二烯或苯乙烯 - 丁二烯系列的天然和合成橡胶的交联中，先前已知可用作硫或硫供体硫化促进剂的N-取代的硫羟基胺的S-酰基衍生物， 可以作为唯一的硫化剂使用。 用于此目的的优选化合物是胺，酰胺或酰亚胺的N-二硫代氨基甲酰基衍生物，例如。 S-（Nmin，Nmin-二甲基氨基）-N，N-二甲基二硫代氨基甲酸酯，S-（乙酰氨基）N，N-二乙基二硫代氨基甲酸酯或S-（邻苯二甲酰亚氨基） - 二正丁基二硫代氨基甲酸酯。 与硫化橡胶相比，得到的橡胶的典型优点是耐热老化性和耐压缩性，与TMTD固化橡胶相比具有更高的加工安全性。