Polyurea foam made from a partially aminated polyether polyamine

Details Polyurea foam made from a partially aminated polyether polyamine Polyurea foam made from a partially aminated polyether polyamine

1995-08-18

1997-12-23

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 521163, 521174, 528 48, 528 52, 528 59, 528 60, 528 65, 528 76, C08G 802

Patent

active

057008469

ABSTRACT:
A process, and the product produced thereby, for preparing a polyurea foam which comprises reacting an aliphatic polyamine having an average functionality from about 2 to about 6 wherein about 55 to about 95 percent of the functional groups are primary amine functional groups and about 5 to about 40 percent of the functional groups are primary or secondary hydroxyl groups with a polyisocyanate in the presence of a blowing agent that comprises water. The use of polyether polyamines having primary hydroxyl groups improves the cross-linking characteristics of the polyurea foam.

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Priester, Jr., Peffley, R.D., Turner, R.B., and R. M. Herrington, "High Resiliency Polyurea Foam-An Improved Flexible Foam Matrix," 32nd Annual Polyurethane Technical/Marketing Conference, Oct. 1-4, 1989, pp. 21-28.

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