Thermal stencil paper for mimeograph
US4957808A · kind A · utility
16Cited by
2References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 9, 1988 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Sep 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2738
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal stencil paper for mimeograph comprising a porous support and a plastic film laminated on each other. The thermal stencil paper for mimeograph of this invention contains a novel release layer on the plastic film. The release layer is composed of a specific graft polymer whose branch polymer comprises a fluorocarbon or silicone resin. The graft polymer is prepared by copolymerizing a radically polymerizable monomer constituting a backbone polymer of said graft polymer and a radically polymerizable fluorocarbon or silicone prepolymer which has a polymerizable double bond at one terminal end of its polymer chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.