Patent · US Active

Isocyanate-functional silicone-polyether copolymer, silicone-polyether-urethane copolymer formed therewith, sealants comprising same, and related methods

US10800921B2 · kind B2 · utility

0Cited by

44References

20Claims

0Family size

Assignees

Dow Silicones Corporation · US
DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Martin Grasmann · Midland, US
David Hagan · Midland, US
Brian Harkness · Midland, US
William H. Heath · Lake Jackson, US
Stephen Michael Hlinka, II · Midland, US
Eric Jude Joffre · Midland, US
William Johnson · Newark, US
Bindu Krishnan · Lake Jackson, US
Qiuyun Xu · Pearland, US
Bizhong Zhu · Midland, US

Key dates

Filing date	Jun 26, 2018
Grant date	Oct 13, 2020
Priority date	—
Expiry date	Jun 26, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2200/0685
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An isocyanate-functional silicone-polyether copolymer having a particular structure is disclosed. A method of preparing the isocyanate-functional silicone-polyether copolymer is also disclosed, the method comprising reacting a polyether compound and an organosilicon compound to give the isocyanate-functional silicone-polyether copolymer. A silicone-polyether-urethane copolymer formed therewith, as well as a method of preparing the silicone-polyether-urethane copolymer, are also disclosed. Sealants comprising the isocyanate-functional silicone-polyether copolymer and/or the silicone-polyether-urethane copolymer are further disclosed.

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