Patent · US Expired

Production of non-foaming aqueous suspensions of polyethylene or polypropylene fibrids

US4001157A · kind A · utility

2Cited by

3References

5Claims

0Family size

Assignee

BASF SE

Inventors

Bruno Sander · Ludwigshafen, DE
Eckhard Bonitz · Bischofswerda, DE
Heinz Berbner · Prüm, DE
Manfred Hoffmann · Würzburg, DE

Key dates

Filing date	Nov 19, 1975
Grant date	Jan 4, 1977
Priority date	—
Expiry date	Nov 19, 1995

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H5/1254
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Aqueous suspensions of polyolefin fibrids are prepared. To avoid foam formation and improve fiber-bonding, small amounts of anionic agents are added to the suspensions. The suspensions are suitable for the manufacture of paper-like or textile-like web structures distinguished by very good fiber bonding and good initial wet strength.

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