Patent · US Active

Method for producing OH-terminal organo hydrogen polysiloxanes

US7655811B2 · kind B2 · utility

0Cited by

5References

7Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Gilbert Geisberger · Altötting, DE
Christian Herzig · Waging am See, DE
Tassilo Lindner · Mehring, DE

Key dates

Filing date	Sep 29, 2006
Grant date	Feb 2, 2010
Priority date	—
Expiry date	Sep 29, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Hydroxyl-terminal organopolysiloxanes having diorganosiloxy groups and Si—H groups are prepared by reacting the appropriate chlorosilanes with less than 0.5 mol water per mol of hydrolyzable chlorine in a first step and recovering gaseous HCl, and more fully hydrolyzing with additional water in a second step.

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