Patent · US Expired

Heatsealable filter material

US7465685B2 · kind B2 · utility

1Cited by

8References

7Claims

0Family size

Assignee

GLATFELTER GERNSBACH GMBH & CO. KG · DE

Inventors

Yves Le Brech · Oignies, FR
Gunter Heinrich · Leverkusen, DE
Manfred Kauβen · Ottersweier, DE
Stefan Kuntz · Flein, DE
Danny Meger · Gernsbach, DE

Key dates

Filing date	Jul 11, 2003
Grant date	Dec 16, 2008
Priority date	—
Expiry date	Jul 11, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/688
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter material comprising at least one nonheatsealable ply and at least one heatsealable ply which comprises fibers of synthetic material and contains an adhesion promoter, and also processes for producing same.

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