Durable modification of fibrous substrates using a polyoxyethylene-containing silane and articles therefrom
US4207071A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1979 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Feb 1, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2484
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fibrous substrates are durably modified by applying a polyoxyethylene-containing silane to the substrate and heating the substrate to cure the silane. Durability of the treatment is achieved by using a silane having the formula R(OCH.sub.2 CH.sub.2).sub.x OR'SR"SiZ.sub.3 where Z denotes a hydroxyl or a hydrolyzable radical, R' and R" are divalent aliphatic radicals of suitable size, R is hydrogen, lower alkyl or lower acyl and x has a value of at least 3. The silane is applied to the fibrous substrate, such as a hydrophobic fabric, as a homogeneous liquid composition comprising the silane, a volatile liquid carrier and a siloxane polymerization catalyst to provide a treated substrate having improved properties, such as hydrophilicity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.