Process for the preparation of open-cell hydrophilic...

Details Process for the preparation of open-cell hydrophilic... Process for the preparation of open-cell hydrophilic...

C - Chemistry, Metallurgy

08

J

403/14, 217/28

C08J 9/04 (2006.01) A01G 5/04 (2006.01) C08G 18/08 (2006.01) C08K 3/32 (2006.01) C08K 5/521 (2006.01)

Patent

CA 2003911

PROCESS FOR THE PREPARTION OF OPEN-CELL HYDROPHILIC POLYURETHANE FOAMS ABSTRACT OF THE DISCLOSURE The present invention relates to a process for preparing open-cell hydrophilic polyurethane foams having a density of 10 to 60 kg/m3 comprising reacting polyisocyanates with compounds having at least two hydrogen atoms that are reactive towards isocyanates and generally having a molecular weight of from about 400 to about 10,000, in the presence of water as a blowing agent, optional compounds having at least two hydrogen atoms that are reactive towards isocyanates and having a molecular weight of from 32 to 399, optional auxiliaries and additives, and about 1 to about 100 mmole of an acid per 100 g of the total amount of the polyol-side components. The invention also relates to the use of such polyurethane foams as a fixing substrate for cut flowers.

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