Polyisocyanurate containing molding compositions

Details Polyisocyanurate containing molding compositions Polyisocyanurate containing molding compositions

1978-07-27

1980-11-04

Michl, Paul R.

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

Synthetic resins

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

525455, C08L 7504

Patent

active

042321336

ABSTRACT:
Ethylenically unsaturated monomer solutions containing ethylenically unsaturated polyisocyanurate resins are thickened to moldable non-sticky gels by the formation in said solution of minor amounts of cross-linked polyurethane resin mixtures. These are made by the addition of polyisocyanates and certain low molecular weight polyols and urethane formation catalysts. When these moldable gels are fully cured, their physical properties are nearly equal to those cast from the ungelled polyisocyanurate monomer copolymer.

REFERENCES:
patent: 2952665 (1960-09-01), Bunge
patent: 3577391 (1971-05-01), Argabright
patent: 3891523 (1975-06-01), Hisamatsu
patent: 4034017 (1977-07-01), Chang
patent: 4073828 (1978-02-01), Ferrarini

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