Patent · US Expired

Manufacture of fibrids of polyolefins

US4112029A · kind A · utility

5Cited by

5References

5Claims

0Family size

Assignee

BASF SE

Inventors

Bruno Sander · Ludwigshafen, DE
Eckhard Bonitz · Bischofswerda, DE
Kurt Scherling · Hemsbach, DE

Key dates

Filing date	Dec 13, 1974
Grant date	Sep 5, 1978
Priority date	—
Expiry date	Dec 13, 1994

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01D5/11
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Fibrids of polyolefins showing a high degree of fibrillation and a high specific surface area are obtained by flashing a pressurized solution or polyolefin in pentane or in a pentane-containing solvent by passing said solution through an orifice into a space which is at a lower pressure and in which shearing forces are applied to said solution. The fibrids directly obtained may be used, for example, for the manufacture of paper or for the manufacture of textile-like webs.

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