Process for producing filled polyurethane elastomers

Details Process for producing filled polyurethane elastomers Process for producing filled polyurethane elastomers

1997-09-26

1999-09-14

Cameron, Erma

Coating processes

With post-treatment of coating or coating material

Heating or drying

524702, 524729, 524789, 524791, B05D 706, B05D 134

Patent

active

059520531

ABSTRACT:
This invention relates to a process for producing filled polyurethane elastomers, and more particularly to a process for producing highly filled polyurethane elastomers in which resin solid separation is substantially reduced. The separation rate of the solid particulate fillers contained in a filled polyol resin is significantly reduced, and the subject process can be optimized to lower the viscosity of the uncured liquid reaction mixture prior to curing same to form a solid, thereby substantially non-cellular filled polyurethane elastomer. The above-described benefits can be accomplished by reacting together a three-component polyurethane system comprising (a) a filled polyether polyol resin having a particulate filler material dispersed therein, (b) a polyisocyanate, and (c) a catalyst solution for reacting (a) and (b) to form said filled polyurethane elastomer.

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