Process for producing flexible polyurethane foam having high air

Details Process for producing flexible polyurethane foam having high air Process for producing flexible polyurethane foam having high air

1993-02-12

1994-04-26

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521128, 521129, C08G 1820

Patent

active

053067380

ABSTRACT:
Process for producing a flexible polyurethane foam through reaction of a polyol with a polyisocyanate in the presence of an amine catalyst, a blowing agent, and a foam stabilizer, the amine catalyst comprising at least one of the imidazoles represented by the general formula below: ##STR1## wherein R.sup.1 is alkyl of 1 to 4 carbons, dimethylaminopropyl, benzyl, vinyl, or hydroxyalkyl of 1 to 3 carbons; R.sup.2 is hydrogen, alkyl of 1 to 4 carbons, allyl, benzyl, or phenyl; and R.sup.3 and R.sup.4 are respectively hydrogen, alkyl of 1 to 4 carbons, or hydroxymethyl.

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Database Chemical Abstract, vol. 113, No. 8, Abstract No. 60908p, Japanese Application 24712 (Mitsui Toatsu Chemicals) Feb. 16, 1990.

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