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US 2019/0169465 A1Published application
Actinic radiation-curable urethane/urea-containing aerospace coatings and sealants
AssigneePRC-DeSoto International, Inc.
InventorsBruce Virnelson, Chandra Rao, Renhe Lin
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Abstract
Actinic radiation-curable compositions containing polythiols and urethane/urea-containing polyalkenyl prepolymers that can be used for aerospace coatings and sealants. The coatings can be applied to surfaces and rapidly cured.
Claims20
A composition comprising
- a polythiol;
- and
- a polyalkenyl, wherein the polyalkenyl comprises
- a urethane-containing polyalkenyl prepolymer;
- a urea-containing polyalkenyl prepolymer;
- or
- a combination thereof.
4 more elements
A sealant system comprising:
- a first part, wherein the first part comprises a polythiol;
- and
- a second part, wherein the second part comprises a polyalkenyl, wherein the polyalkenyl comprises:
- a urethane-containing polyalkenyl prepolymer;
- a urea-containing polyalkenyl prepolymer;
- or
- a combination thereof.
4 more elements
Dependencies are inferred from the claim text.