Process for producing polyisocyanate and resin composition compr

Details Process for producing polyisocyanate and resin composition compr Process for producing polyisocyanate and resin composition compr

1985-09-17

1987-03-03

Welsh, Maurice J.

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

Synthetic resins

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

525127, 5253305, 528 65, 528 85, 544193, 544196, C08G 1828

Patent

active

046476237

ABSTRACT:
A process for producing a polyisocyanate containing an isocyanurate ring which comprises reacting at least one diisocyanate compound selected from the group consisting of alkylene diisocyanates, cycloalkylene diisocyanates and aralkylene diisocyanates with a cycloalkylene diol in the presence of an isocyanurating catalyst; and a resin composition for use in non-yellowing fast-drying urethane paints, comprising (A) the aforesaid polyisocyanate and (B) an acrylic polyol having a number average molecular weight of 2,000 to 30,000 and a hydroxyl value of 20 to 200.

REFERENCES:
patent: 4040992 (1977-08-01), Bechana et al.
patent: 4540781 (1985-09-01), Bansa
patent: 4555535 (1985-11-01), Bednarek et al.
patent: 4582888 (1986-04-01), Kase et al.

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