Synthesis of polymers of vinyl ethers, 1,5-hexadiene and N-vinyl

Details Synthesis of polymers of vinyl ethers, 1,5-hexadiene and N-vinyl Synthesis of polymers of vinyl ethers, 1,5-hexadiene and N-vinyl

1994-06-01

1995-08-08

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526259, 526266, 526270, 526332, 526336, C08F 1176

Patent

active

054399963

ABSTRACT:
A process for the production of high molecular weight poly(vinyl ethers) and the like in which a selected monomer is polymerized in the presence of a metallocene-type catalyst is described. Vinyl ether monomers, N-vinylcarbazole and 1.5-10 hexadiene can be polymerized, in high yield using an initiator of the formula Cp*TiMe.sub.3 in the presence of a co-initiator of the formula B(C.sub.6 F.sub.5).sub.3. Novel dihydropyran polymers, such as poly 3,4-dihydropyran have also been produced.

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