C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/76 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2326652
This invention relates to high molecular weight liquid, non- migrating, non-functional polyether polyurethane plasticizers. These plasticizers comprise the reaction product of an isocyanate-terminated polyether prepolymer having an NCO group content of less than 13% and a monofunctional alcohol having a molecular weight of about 32 to about 1,000 and an OH number of about 56 to about 1750. The isocyanate-terminated polyether prepolymers comprise the reaction product of a diisocyanate and at least one polyether polyol. The present invention also relates to a process for the production of the liquid, non-migrating, non-functional polyether polyurethane plasticizers. This invention also relates to a process for the production of a polyurethane product comprising reacting at least one polyisocyanate component with at least one isocyanate-reactive component, in the presence of these high molecular weight liquid, non- migrating, non-functional polyether polyurethane plasticizers, and to the resultant polyurethane products of this process.
Markusch Peter H.
Pantone Richard S.
Corporation Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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