Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-06-20
2006-06-20
Lipman, Bernard (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S243000, C525S245000, C526S135000, C526S146000, C526S147000, C526S240000, C526S310000, C526S328000
Reexamination Certificate
active
07064166
ABSTRACT:
The present invention relates to a polymerization process for the control of the microstructure of polymers and to novel copolymers. An embodiment of the present invention relates a process of polymerizing first and second monomers in the presence of a complex comprising at least one of the monomers. The presence of the complex modifies the relative reactivity, or cross propagation rate constants, of the monomers in copolymerization reactions. Embodiments of the present invention allow the synthesis of polymers with novel stereochemistry and monomer sequence distribution, for example, but not limited to, copolymers with at least one segment of alternating monomers, a controlled molecular weight and narrow molecular weight distribution, or a segment of high concentration of the first monomer.
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Kirci Betül
Lutz Jean François
Matyjaszewski Krzysztof
Pintauer Tomislav
Carnegie Mellon University
Kirkpatrick & Lockhart Nicholson & Graham LLP
Lipman Bernard
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