Patent · US Active

Method for producing porous silicon molded bodies

US8629193B2 · kind B2 · utility

0Cited by

2References

6Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Manfred Hoelzl · Burghausen, DE
Frauke Kirschbaum · Munich, DE
Robert Maurer · Omaha, US
Juergen Pfeiffer · Mehring, DE
Konrad Alfons Wierer · Sengkofen, DE

Key dates

Filing date	Jan 19, 2011
Grant date	Jan 14, 2014
Priority date	—
Expiry date	Jan 19, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2383/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Thin porous moldings of silicone copolymers, suitable for use as membranes in separation processes, are prepared by forming a solution or suspension of silicone copolymer in two solvents L1 and L2, casting the suspension or solution, and removing solvent L1 to form a silicone copolymer rich phase A, effecting structure formation, and then removing solvent L2 and residues of solvent L2 to form a thin porous molding.

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