Modified polyisocyanurate foam and method of preparation

Details Modified polyisocyanurate foam and method of preparation Modified polyisocyanurate foam and method of preparation

1982-11-18

1984-04-24

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521130, 521131, 521170, 521173, 521176, C08G 1814

Patent

active

044449135

ABSTRACT:
An improved, modified polyisocyanurate foam composition having improved compressive strength and good flame and smoke properties is prepared by the reaction of a methylene diisocyanate with a modifying amount of a hydroxyl compound, such as a hydroxyl-containing polyether or a saturated polyester, and with an alicyclic glycol, such as cyclohexane dimethanol, in the presence of a trimerization catalyst, a blowing amount of a blowing agent and a surfactant.

REFERENCES:
patent: 4129697 (1978-12-01), Schapel et al.
patent: 4221875 (1980-09-01), Yukuta et al.

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