Patent · US Active

Sulfone-containing polythioethers, compositions thereof, and methods of synthesis

US9540540B2 · kind B2 · utility

20Cited by

18References

20Claims

0Family size

Assignee

PRC-DESOTO INTERNATIONAL, INC. · US

Inventors

Chandra Rao · Valencia, US
Juexiao Cai · Santa Clarita, US
Renhe Lin · Santa Clarita, US

Key dates

Filing date	May 11, 2015
Grant date	Jan 10, 2017
Priority date	—
Expiry date	May 11, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L81/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Sulfone-containing polythioethers, compositions containing sulfone-containing polythioethers, methods of synthesizing sulfone-containing polythioethers and the use of sulfone-containing polythioethers in aerospace sealant applications are disclosed. The sulfone-containing polythioethers have sulfone groups incorporated into the backbone of the polythioether. Cured sealant compositions comprising the sulfone-containing polythioethers exhibit enhanced thermal resistance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.