Patent · US Expired

Graft copolymers, a process for their preparation and their use

US4997893A · kind A · utility

8Cited by

2References

14Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Carlhans Suling · Odenthal, DE
Friedrich Reich · Leverkusen, DE
Wilfried Kortmann · Hagen, DE
Klaus-Dieter Schultz · Krefeld, DE
Manfred Fischer · Leichlingen, DE

Key dates

Filing date	Jan 4, 1989
Grant date	Mar 5, 1991
Priority date	—
Expiry date	Jan 4, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S525/923
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to graft copolymers based on at least one ethylenically unsaturated monomer containing perfluoroalkyl groups mixed with an acrylic, methacrylic, vinyl, maleic and/or styrene derivative and a melamine polycondensate as the graft substrate, which are suitable for oleophobic treatment of textiles, carpets, paper or leather and at the same time are effective hydrophobicity agents, and a process for their preparation.

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