Shaped articles made from a mixture of polyvinylidene fluoride and a copolymer of methyl methacrylate and a comonomer containing a quaternary ammonium group
US4039634A · kind A · utility
13Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1975 |
| Grant date | Aug 2, 1977 |
| Priority date | — |
| Expiry date | Apr 14, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/791
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to shaped structures, e.g., filaments, fibers or films based on poly(vinylidene fluoride) possessing good dyeing affinity for acid and metal-containing dyestuffs and comprising a fiber and filament forming mixture of poly(vinylidene fluoride) and a copolymer containing 80-95% by weight of methyl methacrylate and 5-20% by weight of a compound which contains a quaternary ammonium group and is copolymerizable with methyl methacrylate. The filaments and fibers according to the invention can advantageously be used in the textile field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.