C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 127/06 (2006.01) B29C 70/60 (2006.01) C08K 5/00 (2006.01) C09D 133/14 (2006.01) C09D 157/00 (2006.01) C08L 61/28 (2006.01)
Patent
CA 2162487
Disclosed are coating compositions, wearlayer (19) compositions and surface covering products which utilize wearlayer (19) compositions. The wearlayer (19) compositions of the present invention are capable of at once exhibiting high initial gloss values and excellent resistance to scuff, stain ant gloss loss. Such wearlayer (19) compositions are produced utilizing curable coating compositions which comprise thermoplastic polymer, from about 3% by weight to about 25% by weight of plasticizer for the thermoplastic polymer and at least about 30% by weight of reactive crosslinking agent. The weight ratio of the thermoplastic polymer to the crosslinking agent is preferably no greater than about 2:1.
Sont décrites des compositions d'enduction, des compositions de couche d'usure (19) ainsi que des revêtements de surface mettant en oeuvre ces dernières. Les compositions de couche d'usure (19) sont susceptibles de présenter immédiatement un brillant initial élevé ainsi qu'une excellente résistance aux éraflures, aux taches et à la perte du brillant. Ces compositions de couche d'usure (19) sont produites à l'aide de compositions d'enduction durcissables qui comportent un polymère thermoplastique, d'environ 3 % en poids à environ 25 % en poids d'un plastifiant de ce dernier et au moins environ 30 % en poids d'un agent de réticulation réactif. Le rapport en poids du polymère thermoplastique à l'agent de réticulation est de préférence d'environ 2:1 au maximum.
Piacente Antony N.
Shalov Allen A.
Congoleum Corporation
Deeth Williams Wall Llp
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