Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-01-04
2011-01-04
Seidleck, James (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C430S281100, C526S092000, C526S093000, C526S126000, C526S150000, C526S166000, C526S183000, C526S210000, C526S212000, C526S213000, C526S216000, C526S242000, C526S247000, C526S280000, C526S281000, C526S291000, C526S292900, C526S332000, C528S009000, C528S015000, C528S401000
Reexamination Certificate
active
07863394
ABSTRACT:
A method of polymerizing poly(cyclic)olefin monomers encompassing (a) combining a monomer composition containing the poly(cyclic)olefin monomers, a non-olefinic chain transfer agent and an activator compound to form a mixture; (b) heating the mixture; and (c) adding a polymerization catalyst containing Ni and/or Pd. The non-olefinic chain transfer agent includes one or more compounds selected from H2, alkylsilanes, alkylalkoxysilanes, alkylgermanes, alkylalkoxygermanes, alkylstannanes, and alkylalkoxystannanes. The activator is characterized as having an active hydrogen with a pKa of at least 5. The resulting poly(cyclic)olefin polymers can be used in photoresist compositions.
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Barnes Dennis A.
Bell Andrew
Bennett Brian K.
Chang Chun
Lipian John-Henry
Huhn Richard A
Promerus LLC
Seidleck James
The Webb Law Firm
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