Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2003-10-13
2009-06-23
Buttner, David (Department: 1796)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S524000, C524S504000, C524S512000, C524S710000, C525S158000, C525S160000, C526S277000, C526S278000
Reexamination Certificate
active
07550206
ABSTRACT:
Emulgator-free microgel, dispersed in an aqueous phase, obtainable by producing a polyacrylate (A) in the presence of at least one compound (B) containing a phosphonic acid group, where the polyacrylate (A) has at least one hydroxyl group and at least one carboxyl group; aqueous phase crosslinking of the reaction mixture originating from step a) with an aminoplast resin (C); subsequent emulsion polymerization of the reaction mixture originating from step b) with at least one monomer compound (D) which contains at least one radically polymerizable double bond.
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Bollig & Kemper GmbH & Co. KG
Buttner David
Occhiuti Rohlicek & Tsao LLP
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