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
2007-06-12
2007-06-12
Moore, Margaret G. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S476000, C525S446000, C525S934000, C525S474000, C526S279000
Reexamination Certificate
active
10465536
ABSTRACT:
The invention relates to the use of block copolymers as leveling agents for surface coatings, having a weight-average molecular weight of from 1000 to 100000. The leveling agent is a linear or branched block copolymer composed of a polysiloxane block and one or more blocks prepared from ethylenically unsaturated monomers by controlled free-radical addition polymerization.The invention also relates to coating compositions which comprise the leveling agent.
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Bubat Alfred
Frank Albert
Gobelt Bernd
Haubennestel Karlheinz
BYK-Chemie GmbH
Moore Margaret G.
Schwegman, Lundberg, Woessner and Kluth P.A.
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