Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ethylenically unsaturated reactant admixed with either...
Reexamination Certificate
2005-05-24
2011-11-08
Jagannathan, Vasu (Department: 1764)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ethylenically unsaturated reactant admixed with either...
C427S412500, C525S032200, C525S043000, C525S049000, C525S330300, C525S333300, C525S450000, C526S213000
Reexamination Certificate
active
08053519
ABSTRACT:
Coating composition comprising an alkyd having at least 20% by weight of vinylic building blocks and having an oil length below 65%. The weight ratio non-vinylic:vinylic groups is between 1:1 and 4:1, preferably between 1.5:1 and 3:1. The vinylic groups include styrene and (meth)acrylate groups. The ratio of styrene:(meth)acrylate groups is between 0.5:1 and 4:1, preferably between 1.5:1 and 3:1. The vinylic groups show low polarity. The Mw is below 10,000. The oil length is above 45%. The coating composition can be water borne or solvent borne. The alkyd according to the invention allows formulation of solvent borne coatings a volatile organic content below 300 g/l.
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Klaasen Robert Paul
Lansbergen Adrianus Jozefus Hendricus
Smit Dick Christiaan
Akzo Nobel Coatings International B.V.
Boyle Robert C
Jagannathan Vasu
Kenyon & Kenyon LLP
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