Patent · US Active

Polymer with polyether polyester segment and polysiloxane segment

US11623977B2 · kind B2 · utility

1Cited by

9References

22Claims

0Family size

Assignee

BYK-CHEMIE GMBH · DE

Inventors

Andreas Okkel · Wesel, DE
Wolfgang Griesel · Wesel, DE
Guillaume Wojciech Jaunky · Wesel, DE
Ramona Scholten · Wesel, DE

Key dates

Filing date	May 16, 2019
Grant date	Apr 11, 2023
Priority date	—
Expiry date	May 23, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D167/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a polymer comprising: a) at least one polyether polyester copolymer segment, wherein the polyether polyester copolymer comprises ether units selected from the group consisting of the formula (II) —[CR12]n—O—, wherein n is an integer of 2 to 4, R1 represent independent of each other organic groups having 1 to 30 carbon atoms or hydrogen, and wherein in case n is equal to 2 at least one of the R1 represents an ether group having the formula —R2—O—R3, wherein R2 and R3 independent of each other represent organic groups having 1 to 30 carbon atoms, and b) at least one polysiloxane segment linked to the at least one polyether polyester copolymer segment.

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