Stereoregular polar vinyl polymers and methods of making the...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S171000, C526S209000, C526S210000, C526S217000, C526S219000, C526S219200, C526S237000, C522S184000, C252S182140, C252S182330, C252S182350

Reexamination Certificate

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07091293

ABSTRACT:
The polymerization of polar vinyl monomers in the presence of Lewis acids produces stereoregular vinyl polymers. Polar vinyl monomers may be mixed with Lewis acids to form associations or complexes between the monomers and Lewis acids. The mixtures or monomer-Lewis acid complexes may be polymerized to produce the desire stereoregular vinyl polymers.

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patent: 0 710 675 (1996-05-01), None
Database WPI Section Ch, week 199402 Derwent Publication Itd., London; Class A17 AN 1994-012330 XP002325366 & JP 05 320256 A Dec. 3, 1993.
Supplementary European Search Report for European Application No. 03 72 8789 completed on Apr. 20, 2005.

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