Process for rigid polyurethane foams

Details Process for rigid polyurethane foams Process for rigid polyurethane foams

1996-11-12

1997-12-16

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521114, 521128, 521131, 521132, C08G 1800

Patent

active

056986068

ABSTRACT:
A process for the preparation of a fine celled, closed celled rigid polyurethane or urethane-modified polyisocyanate foam is disclosed which comprises reacting a polyfunctional isocyanate-reactive composition with a polyisocyanate composition, characterized in that the foam-forming composition comprises carbon black.

REFERENCES:
patent: 3486967 (1969-12-01), Fisher
patent: 3556158 (1971-01-01), Schneider
patent: 4505973 (1985-03-01), Neet et al.
patent: 4795763 (1989-01-01), Gluck et al.
patent: 4972002 (1990-11-01), Volkert
patent: 4981879 (1991-01-01), Snider
patent: 5034424 (1991-07-01), Wenning et al.
patent: 5149722 (1992-09-01), Soukup
patent: 5192607 (1993-03-01), Soukup
"A Structural Model of Heat Transfer Through Rigid Polyurethane Foam", Sep. 1986, pp. 32-49.

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