C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/2027
C08F 287/00 (2006.01) C08F 289/00 (2006.01) C08F 297/04 (2006.01)
Patent
CA 1123537
22234 SPECIFICATION ABSTRACT OF THE DISCLOSURE The present invention relates to a novel composition of matter comprising: polymerizable "tapered" (or "graded") block macromolecular monomers, each of said polymerizable monomers comprising at least one polymeric segment having at least about 20 uninterrupted recurring monomeric units of at least one anionically polymerized mono-alkenyl-substituted aromatic hydrocarbon and a copolymerized segment or a mono-alkenyl- substituted aromatic hydrocarbon and a conjugated diene; each of said polymerizable monomers terminating with no more than one polymerizable end group containing a moiety selected from the group consisting of vinyl, vinylene, glycol, epoxy, or thio- epoxy groups per mole of said polymerizable monomers, said polymer- izable monomers denoted as preferably having a substantially uniform molecular weight distribution such that their ratio ?w/?n is less than about 1.1, where ?w is the weight average molecular weight of the polymerizable monomers and ?n is the number average molecular weight of the polymerizable monomers, said -1- 22234 polymerizable monomers being further characterized as capable of copolymerizing with a second polymerizable compound having a relatively low molecular weight to yield a chemically joined, phase separated thermoplastic graft copolymer, said copolymer- ization occurring through said polymerizable end group, said polymerizable end group thereby occurring as an integral part of the backbone of said chemically joined, phase separated thermo- plastic graft copolymer. Also disclosed are chemically joined, phase separated thermoplastic graft copolymers prepared from the polymerizable monomers.
369251
Danzig Morris J.
Milkovich Ralph
Cpc International Inc.
Gowling Lafleur Henderson Llp
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