Urethane-modified polyisocyanurate rigid foam

Details Urethane-modified polyisocyanurate rigid foam Urethane-modified polyisocyanurate rigid foam

1985-10-24

1986-11-18

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 51, 264 53, 521131, 521160, C08G 1814

Patent

active

046236732

ABSTRACT:
Improved crack-free rigid cellular polyisocyanurate polymers are disclosed that are derived from the reaction of an organic polyisocyanate combination comprising two particular types of polymethylene polyphenyl polyisocyanates (a) and (b), a trimerization catalyst, minor amount of a polyol, a surfactant, and an inert volatile blowing agent having a boiling point from about 30.degree. C. to about 90.degree. C.
The novel rigid foams are particularly useful in preparing high molded bodies of foam by making multiple pours or lifts on top of each other in a mold. The resultant molded body comprises a multiple of molded parts firmly fused to each other and crack-free. Such high molded bodies and process therefor are particularly useful in the insulation of ships.

REFERENCES:
patent: 3745133 (1973-07-01), Comunale et al.
patent: 3899443 (1975-08-01), Reymore et al.
patent: 3986991 (1976-10-01), Kolakowski et al.
patent: 4011180 (1977-03-01), Lockwood et al.
patent: 4039487 (1977-08-01), Kolakowski et al.
patent: 4101465 (1978-07-01), Lockwood et al.
patent: 4237238 (1980-12-01), DeGuiseppi et al.
patent: 4411949 (1983-10-01), Snider et al.
patent: 4417001 (1983-11-01), Svoboda et al.

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