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
2005-02-08
2005-02-08
Teskin, Fred (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...
C525S244000, C525S258000, C525S266000, C525S267000, C525S289000, C526S348700
Reexamination Certificate
active
06852804
ABSTRACT:
Block copolymers having a polyisobutylene segment and a polycycloaliphatic diene polymer segment are presented. Star block copolymers with 2 to 16 block copolymer arms, wherein each of the arms has a polyisobutylene segment and a polycycloaliphatic diene polymer segment, are presented. The star block copolymers are synthesized via the “core first” method.
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Kennedy Joseph P.
Moustafa Ahmed F.
Peetz Ralf M.
Roetzel & Andress
Teskin Fred
The University of Akron
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