Patent · US Active

PTFE membrane

US9409132B2 · kind B2 · utility

0Cited by

19References

13Claims

0Family size

Assignee

Donaldson Company, Inc. · US

Inventors

Richard Brandimarte · Bensalem, US
Kirit Patel · Bound Brook, US

Key dates

Filing date	Oct 18, 2010
Grant date	Aug 9, 2016
Priority date	—
Expiry date	Oct 18, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2327/18
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for improving the dimensional stability of PTFE membranes by the application of elevated temperature and elevated pressure to a PTFE membrane. The process reduces and/or eliminates the relaxation stress normally associated with PTFE membranes made using previously existing methods.

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