Vinyl chloride resin-based composition for floppy disc jacket
US4628070A · kind A · utility
0Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1986 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Feb 3, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L21/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides a formulation of a vinyl chloride resin-based composition suitable for preparing floppy disc jackets having high heat resistance with a Clash-Berg temperature of 75.degree. C. or higher comprising, as the essential components, (A) a copolymer of viny chloride with a N-substituted maleimide as the comonomer, optionally in combination with a homopolymeric polyvinyl chloride resin, (B) an impact-strength improving agent which is preferably a vulcanizable synthetic rubber and (C) carbon black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.