Patent · US Expired

Filter sheet material

US5277963A · kind A · utility

10Cited by

3References

7Claims

0Family size

Assignee

Blucher GmbH · DE

Inventors

Hasso von Blucher · Erkrath, DE
Ernest De Ruiter · Leverkusen, DE

Key dates

Filing date	Feb 23, 1993
Grant date	Jan 11, 1994
Priority date	—
Expiry date	Feb 23, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/25
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter material suitable for making protective clothing comprising an air-permeable pliable textile support, substantially spherical adsorber particles, and an adhesive discontinuously securing said particles to said textile support, wherein the adsorber particles comprise a copolymer based mainly on styrene and divinylbenzene, eventually crosslinked by CH.sub.2 -bridges.

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