Graft prestabilizing and stabilizing copolymers and their prepar

Details Graft prestabilizing and stabilizing copolymers and their prepar Graft prestabilizing and stabilizing copolymers and their prepar

1989-11-17

1992-01-14

Welsh, Maurice J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

521137, C08F28306

Patent

active

050811800

ABSTRACT:
Prestabilizing copolymers comprising the product of the in situ reaction of a mixture of ethylenically unsatured monomers containing at least one mono-unsaturated monomer containing no groups which can be alkoxylated and one unsaturated monomer containing a group which can be alkoxylated, a prepolyol of low molecular weight and a polymerization catalyst as well as an alkoxylating agent for the abovementioned reaction product chosen from the group comprising ethylene oxide, propylene oxide and their mixtures, process for obtaining dispersions of polymers/polyols and process for obtaining polyurethane foams.

REFERENCES:
patent: 3823201 (1974-07-01), Pizzini et al.
patent: 4148840 (1979-04-01), Shah
patent: 4454255 (1984-06-01), Ramlow et al.
patent: 4458038 (1984-07-01), Ramlow et al.
patent: 4591607 (1986-05-01), Campbell et al.

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