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
2005-04-12
2005-04-12
Lipman, Bernard (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...
C525S123000, C525S127000, C525S170000, C525S178000, C525S181000, C525S182000, C525S183000, C525S185000, C525S211000
Reexamination Certificate
active
06878776
ABSTRACT:
The invention relates to thermosetting compositions, in particular coating or molding compositions, comprising crosslinked polymer microparticles with a size ranging from 10 to 300 nm and carrying at least one reactive functional group which can react with at least one of the reactive components of the thermosetting composition. Preferably, these microparticles carry at least one second reactive functional group distinct from the first which can react with at least one other functional group of the same type carried by another microparticle and/or by a reactive component of the thermosetting composition. These microparticles are at least partially soluble, miscible and/or dispersible in the starting thermosetting composition. The preferred thermosetting compositions are based on resins of epoxy/amine type or on unsaturated polyester resins and/or on vinyl ester resins.The coatings or molded items obtained exhibit very good mechanical, thermal and chemical strength resulting from the presence of these microparticles.
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Barbeau Philippe
Magny Benoit
Pascault Jean-Pierre
Valette Ludovic
Cray Valley S.A.
Lipman Bernard
Whyte Hirschboeck Dudek SC
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