Reverse coating textiles with polyurethane solutions
US4248910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1976 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Oct 26, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N3/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to the coating of sheet-form textile materials by the reverse process using polyurethanes which, for ecological and economic reasons, are dissolved in a single organic solvent. Segmented, substantially linear polyurethanes of dihydroxy polyesters and/or dihydroxy polyethers, aromatic and/or aliphatic diisocyanates and glycols and/or diamines as chain extenders, are used as surface and adhesive coatings in the form of solutions containing only a single organic solvent. To control coating properties, solutions used for adhesive coatings contain from 1 to 15% by weight based on the weight of the solution of water in addition to the organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.