发明名称 |
Irradiation process for the preparation of poly(vinyl chloride-g-isobutylene) copolymers |
摘要 |
{PG,1 Disclosed is a process for the preparation of a graft copolymer comprising a PVC backbone and graft branches formed from cationically polymerizable monomers such as styrene, isoprene, butadiene and in particular, isobutylene. The process includes the steps of irradiating the PVC resin to form reactive sites thereon, dissolving the irradiated resin in a suitable solvent, adding a monomeric charge of isobutylene and a catalytic amount of an alkylaluminum compound to polymerize a plurality of polyisobutylene branches from the reactive sites, subsequently terminating the reaction and separating the graft copolymer.
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申请公布号 |
US4108749(A) |
申请公布日期 |
1978.08.22 |
申请号 |
US19770827534 |
申请日期 |
1977.08.25 |
申请人 |
THE FIRESTONE TIRE & RUBBER COMPANY |
发明人 |
BOHM, GEORG GUSTAV ANTON;TRIVEDI, PRAKASH DRUMAN;VALAITIS, JOSEPH KESTUTIS |
分类号 |
C08F259/00;C08F2/46;C08F259/04;(IPC1-7):C08F8/00 |
主分类号 |
C08F259/00 |
代理机构 |
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