Polyurea polyrethanes having improved physical properties

Details Polyurea polyrethanes having improved physical properties Polyurea polyrethanes having improved physical properties

2006-01-24

2006-01-24

Sergent, Rabon (Department: 1711)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C036S02500A, C528S076000, C528S077000, C528S080000, C528S083000

Reexamination Certificate

active

06989406

ABSTRACT:
A process for preparing oil and petroleum-resistant cellular to solid (polyurea)polyurethanes (PURS) with improved physical properties in which a polyether polyol component having a number average molecular weight of from 1000 to 8000 and a polyester polyol component having a number average molecular weight of from 1000 to 6000 are reacted with a polyisocyanate and the (polyurea) polyurethanes produced by that process. The (polyurea)polyurethanes are particularly useful for personal safety equipment and in the construction of automobiles.

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patent: 0 279 276 (1988-08-01), None
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patent: 98/23659 (1998-06-01), None

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