Patent · US Active

Polyurethane block copolymer based on poly siloxane tenside for membranes

US9139686B2 · kind B2 · utility

1Cited by

4References

17Claims

0Family size

Assignee

POLYMERS CRC LIMITED · AU

Inventors

Thomas Weiß · Ilvesheim, DE
Jaleh Mansouri · Rosebery, AU

Key dates

Filing date	Mar 1, 2011
Grant date	Sep 22, 2015
Priority date	—
Expiry date	Jun 15, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/035
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Oligo- or polyurethane compounds of the formula (I) wherein k and n independently are numbers from 1 to 100, m is from the range 1-100, (X) is a block of formula (II) and (Y) is a block of the formula (III), (A) is a residue of an aliphatic or aromatic diisocyanate linker, (B) is a residue of a linear oligo- or polysiloxane containing alkanol end groups, and optionally further containing one or more aliphatic ether moieties, and (C) is an aromatic oligo- or polysulfone block, may advantageously be used as anti-adhesion additives in polymer compositions e.g. for membranes; related oligo- or polyurethanes wherein m is 0 are especially suitable for the preparation of antimicrobial water separation membranes.

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