Polyurethane and preparation containing polyurethane

Details Polyurethane and preparation containing polyurethane Polyurethane and preparation containing polyurethane

2005-04-26

2005-04-26

Sergent, Rabon (Department: 1711)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S457000, C525S460000, C528S028000, C528S076000

Reexamination Certificate

active

06884852

ABSTRACT:
A polyurethane is produced by reacting at least components A and B, where a) a polyisocyanate or mixture of polyisocyanates is used as component A and b) a polyol or mixture of polymer is used as component B. Component B contains at least one polyether having a number average molecular weight of at least 4000 and a polydispersity of less than 1.5 and/or an OH functionality of between about 1.8 and about 2. Preparations containing such polyurethanes are useful as adhesives, coatings and sealants.

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