Synthetic fibers lubricated with heteric copolymer of tetrahydrofuran and C.sub.3 to C.sub.4 alkylene oxide
US4259405A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1980 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Jan 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There are disclosed lubricated synthetic yarn and processes therefore wherein heteric copolymers of tetrahydrofuran and at least one C.sub.3 to C.sub.4 alkylene oxide initiated with a polyhydric alcohol are utilized as lubricants. The copolymers have a molecular weight of about 500 to about 10,000 and are initiated with polyhydric alcohols having a total of not more than 20 carbon atoms which are free of elements other than carbon, hydrogen and oxygen. Said initiators have 2 to about 6 reactive hydrogen atoms. The heteric copolymers of the invention capped with at least one lower alkylene oxide residue are also useful as fiber lubricants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.