Patent · US Active

Low temperature cure silicone elastomer

US10774184B2 · kind B2 · utility

1Cited by

18References

15Claims

0Family size

Assignee

Dow Silicones Corporation · US

Inventors

Patrick BEYER · Wiesbaden, DE
Ivonne Hankammer · Wiesbaden, DE
Hans Peter WOLF · Zürich, CH

Key dates

Filing date	Feb 21, 2017
Grant date	Sep 15, 2020
Priority date	—
Expiry date	Mar 20, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L83/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A liquid curable silicone elastomer composition is disclosed. The liquid curable silicone elastomer composition comprises an organopolysiloxane (A) containing at least two silicon-bonded alkenyl groups per molecule, an organopolysiloxane (B) containing at least two silicon-bonded hydrogen atoms per molecule, a platinum based catalyst (C), an inhibitor (D), and a silica filler (E). The organopolysiloxane (B) is a branched polymer, contains M siloxy units, and the at least two silicon-bonded hydrogen atoms are present on the M siloxy units. The inhibitor (D) is selected from the group consisting of acetylenic alcohols and their derivatives. The inhibitor (D) is present in the liquid curable silicone elastomer composition in an amount to provide a molar ratio of the inhibitor (D) to platinum in the catalyst (C)—of from 150 to 900 (150:1 to 900:1).

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