Rigid popyurethane foams with constant or slightly...

Details Rigid popyurethane foams with constant or slightly... Rigid popyurethane foams with constant or slightly...

E - Fixed Constructions

21

D

403/35, 61/66

E21D 15/50 (2006.01) C08G 18/50 (2006.01) C08G 18/66 (2006.01) C09K 8/94 (2006.01)

Patent

CA 1258147

RIGID POLYURETHANE FOAMS WITH CONSTANT OR SLIGHTLY DECREASING STRAIN WITH AN INCREASING STRESS IN COMPRESSION Abstract of the Disclosure Rigid polyurethane foams which exhibit constant or slightly decreasing strain with an increasing stress in compression are prepared employing from 30 to 60 parts of an alkoxylated toluenediamine polyol per 100 parts of polyol mixture. These foams may be employed in shoring up geo- logical formations.

491250

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