Process for the production of rigid foams containing urethane an

Details Process for the production of rigid foams containing urethane an Process for the production of rigid foams containing urethane an

1994-01-24

1994-11-22

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521902, C08G 1800

Patent

active

053670000

ABSTRACT:
Rigid foams containing urethane and isocyanurate groups are obtained by using of mixtures of i) n-pentane and/or isopentane and ii) cyclopentane as blowing agents.

REFERENCES:
patent: 5096933 (1992-03-01), Volkert
patent: 5223549 (1993-06-01), Wiedermann et al.

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