Thiol activation of polyurethanes and methods of making the...

Details Thiol activation of polyurethanes and methods of making the... Thiol activation of polyurethanes and methods of making the...

2005-05-10

2005-05-10

Gorr, Rachel (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...

C525S453000, C525S454000

Reexamination Certificate

active

06890998

ABSTRACT:
A polyurethane having a thiol substituent pendant from at least one nitrogen and/or at least one carbon atom of the polyurethane.A polyurethane having a thiol substituent pendant from at least one nitrogen and/or at least one carbon atom of the polyurethane, wherein the thiol substituent has a formula:in-line-formulae description="In-line Formulae" end="lead"?—RL—(S—R1)nin-line-formulae description="In-line Formulae" end="tail"?wherein n is an integer from 1 to 3; RLis an (n+1)-valent organic radical having at least one carbon atom; and R1is a member selected from the group consisting of H, C(O)R3, and SR4, wherein R3is a member selected from the group consisting of C1to C6alkyl and R4is a heterocyclic group or an electron deficient aromatic group.

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