Means for fixing or transferring and fixing powder containing thermoplastic resin on a receiving material
US4971844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1321
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A device for fixing or transferring and fixing a powder containing thermoplastic resin on to a receiving material under the influence of pressure and heat, in which device the fixing member in pressure contact with the powder during the fixing of the powder image is provided with an outer covering consisting mainly of silicone rubber. The silicone rubber is the reaction product of polyorganosiloxane bearing Si--H groups and polyorganosiloxane which bears Si--(CH.dbd.CH.sub.2) groups and which on average contains between 40 and 1000 monomeric units per polymer chain, bears 1.5-4 terminal vinyl groups, bears at most one non-terminal vinyl group per 80 monomeric units and contains at most 2% Si atoms in the form of SiO3/2 or SiO4/2 units. The thickness of the silicone rubber covering is preferably less than 500 micrometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.