Inventors:
Stephen Z. Jakabhazy - Weston MA
Laxmidas R. Patel - Chelmsford MA
Assignee:
Abcor, Inc. - Wilmington MA
International Classification:
C08F29118, C08F29106, C08F29104
Abstract:
A dry grafting method of grafting a vinyl monomer onto a polymer, which method comprises admixing into an essentially dry, solvent-swollen, finely-divided, particulate, solid, polymer admixture, wherein the polymer has free radicals formed thereon and the admixture is essentially free of a polymerization initiator, a small grafting amount in incremental portions of a vinyl-monomer material to be grafted onto the swollen polymer, the amount of vinyl monomer sufficient to maintain an essentially free-flow, stirrable, particulate admixture, and effecting grafting of the vinyl monomer to the polymer.