Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1976-05-27
1978-08-01
Michl, Paul R.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260878R, 260879, 260880R, C08F29704
Patent
active
041043308
ABSTRACT:
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 uninterrutped recurring monomeric units of at least one anionically polymerized mono-alkenyl-substituted aromatic hydrocarbon and a copolymerized segment of 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 thioepoxy groups per mole of said polymerizable monomers, said polymerizable monomers denoted as preferably having a substantially uniform molecular weight distribution such that their ratio of Mw/Mn is less than about 1.1, where Mw is the weight average molecular weight of the polymerizable monomers and Mn is the number average molecular weight of the polymerizable monomers, said 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 copolymerization 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 thermoplastic graft copolymer. Also disclosed are chemically joined, phase separated thermoplastic graft copolymers prepared from the polymerizable monomers.
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Danzig Morris J.
Milkovich Ralph
CPC International Inc.
Michl Paul R.
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