Composites having a dimensionally stable water-blown polyurethan

Details Composites having a dimensionally stable water-blown polyurethan Composites having a dimensionally stable water-blown polyurethan

1992-12-28

1993-11-16

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

427373, 4283184, 4283191, 4283193, 4283197, 4283199, C08G 1814

Patent

active

052624471

ABSTRACT:
A water-blown polyurethane foam is provided between two substrates in foamed-in-place applications such as cooling containers. The water-blown polyurethane foam is made dimensionally stable at low densities by adding lithium salts of a 2 to 24 carbon atom carboxylic acid to the polyol component. The dimensional stability of the foam at the low densities further results in raw material savings.

REFERENCES:
patent: 3426110 (1969-02-01), Kesling
patent: 4110270 (1978-08-01), Narayan
patent: 4190305 (1980-02-01), Knight et al.
patent: 4240999 (1980-12-01), Decker, Jr.
patent: 4704410 (1987-11-01), Booth et al.
patent: 4721237 (1988-01-01), Leslie
07/850,542, filed Mar. 13, 1992.
07/990,405, filed Dec. 14, 1992.

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