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
2009-01-29
2010-10-19
Buttner, David (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S09200D, C525S09200D, C525S125000
Reexamination Certificate
active
07816450
ABSTRACT:
A blend of a cycloolefin copolymer and a thermoplastic urethane having similar indices of refraction is transparent. The cycloolefin copolymer is derived from norbornene and other monomers such that it has a processing range compatible with the thermoplastic urethane. The urethane component preferably has a polyether intermediate. A thermoplastic urethane compatibilizing agent is utilized desirably having a hydrocarbon intermediate portion. The compositions can be made to have desirable electrical dissipative properties for static control applications.
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TOPAS Product data sheet.
Ultracki, Polymer Blends Handbook, vol. 2, 2002, p. 930.
Buttner David
Lubrizol Advanced Materials, Inc.
Powell Joe A.
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