Patent · US Active

Polyorganosiloxane having poly(meth)acrylate groups and methods for the preparation and use thereof

US11697714B2 · kind B2 · utility

0Cited by

34References

12Claims

0Family size

Assignees

Dow Silicones Corporation · US
DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Jodi Mecca · Midland, US
Nanguo Liu · Midland, US
Eric Jude Joffre · Midland, US
Randy Schmidt · Midland, US
Beth Kelley · Midland, US
Timothy Mitchell · Clio, US
James A. Walker · Fort Myers, US
Wesley Sattler · Bedminster, US
Bryan L. McCulloch · Collegeville, US
Tzu-Chi Kuo · Keelung, TW

Key dates

Filing date	Mar 13, 2020
Grant date	Jul 11, 2023
Priority date	—
Expiry date	Jun 4, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2483/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polydiorganosiloxane having both a silicon bonded aliphatically unsaturated group and a silicon bonded poly(meth)acrylate polymer or copolymer, and method for preparation of this polydiorganosiloxane are disclosed. The method preserves the aliphatically unsaturated groups when grafting the poly(meth)acrylate to the polydiorganosiloxane. This polydiorganosiloxane is useful in hydrosilylation reaction curable compositions, such as pressure sensitive adhesive compositions.

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