Modifying textiles and fibers
US3967041A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1973 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Aug 30, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31768
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for finishing keratinous material, especially rendering it shrink-resistant or imparting to it durably pressed effects, comprises PA1 1. treating the material with a polythiol ester of the formula ##EQU1## WHERE R.sup.1 represents an aliphatic or araliphatic hydrocarbon radical of at least 2 carbon atoms, which may contain not more than one ether oxygen atom, PA2 R.sup.2 represents a hydrocarbon radical, PA2 p is an integer of from 2 to 6, PA2 q is zero or a positive integer of at most 3, such that (p + q) is at most 6, and PA2 r and s each represent zero or 1 but are not the same, and PA1 2. curing the polythiol ester on the material by means of a polyene containing, per average molecule, at least two ethylenic double bonds each .beta. to an oxygen, nitrogen, or sulfur atom, the sum of such ethylenic double bonds in the polyene and of the mercaptan groups in the polythiol ester being more than 4 and the combined weight of the polyene and the polythiol ester being from 0.5 to 15% by weight of the keratinous material treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.