Pre-treating textiles with dispersions of graft polymers based on polyalkylene oxides to impart soil release properties thereto
US4999869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1989 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Oct 5, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/53
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the pre-treatment of textile surfaces which impart soil release properties, comprising contacting a textile with a dispersion graft copolymer of: PA0 (a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000, is based on ethylene oxide, propylene oxide and/or butylene oxide and may be capped at one end through etherification, esterification, amidation or reaction with a isocyanate, and PA0 (b) at least one vinyl ester derived from a saturated monocarboxylic acid containing 1 to 6 carbon atoms and/or a methyl or ethyl ester of acrylic or methacrylic acid in a weight ratio (a):(b) of from 1:0.2 to 1:10 in an aqueous liquor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.