Patent · US Active

Additive organopolysiloxane composition, curable composition, and film

US10774217B2 · kind B2 · utility

2Cited by

22References

14Claims

0Family size

Assignee

Dow Silicones Corporation · US

Inventors

Tom Bekemeier · Midland, US
Steve Cray · Midland, US
Lori Dehlin · Midland, US
Tim Mitchell · Midland, US
Sze-Sze Ng · Midland, US
Dave Rich · Midland, US

Key dates

Filing date	Jan 11, 2019
Grant date	Sep 15, 2020
Priority date	—
Expiry date	Jan 11, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J2483/005
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An (A) additive organopolysiloxane composition is disclosed which comprises (A1) a branched organopolysiloxane polymer comprising M, D and Q siloxy units and (A2) a silicone resin. The (A) additive organopolysiloxane composition has a content of aliphatically unsaturated groups of from 1.5 to 7.0 wt. %. A curable composition is also disclosed, the curable composition comprising the (A) additive organopolysiloxane composition, (B) an organosilicon compound having at least two silicon-bonded hydrogen atoms per molecule, and (C) a hydrosilylation catalyst. A method of preparing the curable and a method of forming a film with the curable composition are also disclosed.

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