Spin size and thermosetting aid for pitch fibers
US4276278A · kind A · utility
10Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1979 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Jan 29, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/145
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of treating a multifilament bundle of pitch fibers, such as yarn or tow, to prepare such multifilament bundle for further processing which comprises applying to the fibers thereof an aqueous finishing composition comprising a dispersion of graphite or carbon black in water in which is dissolved a water-soluble surfactant which is also capable of functioning as an oxidizing agent. The finishing composition serves as both a size for the fiber bundle and as a thermosetting aid during infusibilization of the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.