Polymerizing monomers in presence of polyol and castor oil-polyo

Details Polymerizing monomers in presence of polyol and castor oil-polyo Polymerizing monomers in presence of polyol and castor oil-polyo

1996-07-16

1998-12-29

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

521173, 528361, C08G 1804, C08G 6306, C08G 6548

Patent

active

058543589

ABSTRACT:
A process is described for the preparation of stable, agglomerate-free, low-viscosity graft copolymer dispersions by the free-radical polymerization of olefinic monomers, such as styrene and/or acrylonitrile, with polyol compounds in the presence of a hydroxyl compound modified with castor oil. The use of these graft copolymer dispersions in the manufacture of polyurethane plastics, particularly flexible foams, by the isocyanate polyaddition process is also described.

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