公开(公告)号：US3583934A

公开(公告)日：1971-06-08

申请号：US3583934D

申请日：1968-11-27

申请人： ARIZONA CHEM

发明人： WHEELUS CHARLES GLENN

IPC分类号： C08F36/04 ,  C08D9/12

CPC分类号： C08F36/04 ,  C08F2/00 ,  C08F4/28

摘要： IN SYNTHETIC RUBBER MANUFACTURING PROCESSES WHREREIN AQUEOUS EMULSIONS OF BUTADIENE AND STYRENE OR BUTADIENE AND ACRYLONITRILE OR OTHER VINYL MONOMER ARE PREPARED WITH AN EMULSIFYING AGEN CONTAINING A WATER-SOLUBLE SOAP OF A DISPROPORTIONATED ROSIN AND ARE POLYMERIZED IN THE PRESENCE OF A FREE RADICAL CATALYST SYSTEM, THE ADVERSE ACTION OF FREE OXYGEN ON THE POLYMERIZATION IS OFFSET BY HEAT-MODIFYING THE DISPROPORTIONATED ROSIN BEFORE IT IS CONVERTED INTO ITS SOAP. THIS IS DONE BY HEATING IT AT ABOUT 250 -300*C. FOR ABOUT 1 TO 4 HOURS IN ADMIXTURE WITH ABOUT 0.5% OF ITS WEIGHT OF ACETIC ANHYDRIDE.

公开(公告)号：US3565841A

公开(公告)日：1971-02-23

申请号：US3565841D

申请日：1968-11-08

申请人： DU PONT

发明人： TARNEY ROBERT EDWARD ,  VERBANC JOHN J

IPC分类号： C08L21/00 ,  C08L23/16 ,  C09J155/04 ,  C09J161/06 ,  C08D9/12

CPC分类号： C08L23/16 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  C08L17/00 ,  C08L19/003 ,  C08L21/00 ,  C08L23/22 ,  C08L61/00 ,  C08L93/00 ,  C08L2312/00 ,  C09J155/04 ,  C09J161/06 ,  C08L2666/26 ,  C08L2666/02 ,  C08L2666/16 ,  C08L2666/08

摘要： AN HYDROCARBON ELASTOMER IS TACKIFIED BY UNIFORMLY MIXING WITH AN ORGANIC CYCLIC RESIN, WHICH HAS AT LEAST ONE POLAR FUNCTIONAL GROUP AND A MOLECULAR WEIGHT OF AT LEAST 200, AGING THE RESULTING MIXTURE IN THE SUBSTANTIAL ABSENCE OF OZONE AND FREE-RADICAL PRODUCING AGENTS UNTIL A PHASE, DIFFERENT FROM THE BULK OF THE MIXTURE, FORMS ON A SURFACE OF THE MIXTURE, FOLLOWED BY EXPOSING SAID SURFACE TO OZONE OR A FREE RADICAL PRODUCING AGENT.

公开(公告)号：US3549574A

公开(公告)日：1970-12-22

申请号：US3549574D

申请日：1968-03-15

申请人： POLYMER CORP

发明人： HAWKINS COLIN W

IPC分类号： C09J123/22 ,  C08D9/12

CPC分类号： C09J123/22 ,  C08L2666/02

摘要： 1,196,087. Adhesive composition. POLYMER CORP Ltd. 27 March, 1968 [19 April, 1967], No. 14791/68. Heading C3P. An adhesive composition comprises a dispersion in a volatile organic liquid of a mixture of a cross-linked polymer of isobutylene, an elastomer and a tackifying resin, the polymer containing at least 20% by weight of gel. The amount of organic liquid present is preferably not less than 80% by weight of the composition. The proportion of tackifying resin to crosslinked polymer is preferably between 0À25:1 to 10: 1 by weight. The elastomer may be a butadiene-styrene copolymer present in from 1/3 to not more than 5 parts per part of cross-linked copolymer. In the examples, a copolymer of isobutylene, isoprene and divinyl benzene is dispersed in toluene and a butadiene-styrene copolymer, wood rosin and an antioxidant added thereto. Instead of wood rosin, an alkyl phenol aldehyde resin may be used. In some examples, butyl rubber and a butadiene-acrylonitrile copolymer is used instead of the butadiene styrene copolymer.

公开(公告)号：US3538031A

公开(公告)日：1970-11-03

申请号：US3538031D

申请日：1968-05-02

申请人： SMITHERS OASIS CO THE

发明人： RICE ALVIST V

IPC分类号： C09J153/02 ,  C08D9/12

CPC分类号： C09J153/02 ,  C08L2666/02 ,  C08L2666/28

公开(公告)号：US3506602A

公开(公告)日：1970-04-14

申请号：US3506602D

申请日：1968-01-22

申请人： FIRESTONE TIRE & RUBBER CO

发明人： FLOROS JOHN C ,  WEI CHUNG HWEI

IPC分类号： C08F2/22 ,  C08F251/00 ,  C08D9/12

CPC分类号： C08F251/00 ,  C08F212/08