C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/48 (2006.01) C08J 9/04 (2006.01)
Patent
CA 2223191
Process for the production of flexible polyurethane foams by reacting A) polyisocyanates or polyisocyanate prepolymers, with B) a specific blend of isocyanate-reactive compounds, C) water, D) optionally, blowing agents, E) optionally, activators, stabilizers and other per se known additives. The specific blend of isocyanate-reactive compounds B) comprises: i) at least one polyether polyol of a functionality of more than 2.5 to 6.0, ii) at least one polyether polyol of a functionality of 1.8 to less than 2.5, iii) at least one polyether polyol of a functionality of 1.8 to 6.0 having an EO content in the polyether chain of at least 50 wt.%. The flexible foams produced according to the present invention are characterized by moderate compressive strength at an elevated bulk density.
Haas Peter
Jacobs Gundolf
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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