C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08L 35/06 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2069128
Q8-12 (8876)A POLYBLENDS CONTAINING POLYURETHANE, POLYMER AND SILOXANE CROSSLINKER A B S T R A C T The invention pertains to blends of polymers containing a poly- urethane, a polymer having reactive carboxyl moieties and a siloxane crosslinking agent. The polymer is most preferably represented by a terpolymer. The crosslinking agent contains reactive moieties such as hydroxy-, amine-, and epoxy-moieties and has a molecular weight which is preferably in the range of from about 1,500 to 60,000. The crosslinker can be used in rela- tively low molecular ratios vs. the polymerisable dicarboxylic acid in the polymer. Shaped articles made from the polyblends herein can be processed under high temperature conditions without suffering alterations; the articles so produced show desirable physical properties inclusive of reduced plasticiser migration, reduced fogging and enhanced low-temperature flexibility.
Mcfadden Fincham
Solutia Inc.
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