Polyisocyanurate polymers, dispersions, and cellular and non-cel

Details Polyisocyanurate polymers, dispersions, and cellular and non-cel Polyisocyanurate polymers, dispersions, and cellular and non-cel

1981-01-19

1982-11-16

Cockeram, H. S.

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...

252182, 521117, 521160, 521161, 521902, 544193, 544221, 524377, 524386, 524589, 524726, 524743, 524751, 524770, 528 49, C08G 1879, C08K 506

Patent

active

043595502

ABSTRACT:
Polyisocyanurate polymers are prepared by the polymerization of organic polyisocyanates in organic solvents employing trimerization catalysts. After deactivation of the catalysts and removal of the solvents, these polymers may be dispersed in polyols which are employed for the preparation of cellular and non-cellular polyurethane products displaying improved load bearing properties.

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patent: 4255569 (1981-03-01), Mueller et al.

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