Title:
METHOD OF MAKING PVC GRAFT POLYMER
Document Type and Number:
Japanese Patent JPS5456694
Kind Code:
A
Abstract:
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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Inventors:
JIYOOJI GUSUTAFU ANTON BOOMU
PURAKASHIYU DORUMAN TORIBEDEI
JIYOSEFU KESUTEYUTEISU BAREITE
PURAKASHIYU DORUMAN TORIBEDEI
JIYOSEFU KESUTEYUTEISU BAREITE
Application Number:
JP10335478A
Publication Date:
May 07, 1979
Filing Date:
August 24, 1978
Export Citation:
Assignee:
FIRESTONE TIRE & RUBBER CO
International Classes:
C08F2/46; C08F259/04; C08F259/00; (IPC1-7): C08F2/04; C08F4/52; C08F259/04