Heat transfer recording sheet
US4748151A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Aug 5, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heat transfer recording sheet is disclosed, comprising a base film having provided on one side thereof a coloring material layer containing at least a subliming dye and a binder, wherein said binder is a polycarbonate resin having a repeating unit represented by the formula (I): ##STR1## wherein R.sup.1 represents an aryl group; and R.sup.2 represents a hydrogen atom, an alkyl group or an aryl group. In another embodiment, said binder is a copolymer of polycarbonate resin having a repeating unit represented by the formula (I) and a repeating unit represented by the formula (II) ##STR2## wherein rings A and B each represents a phenylene group or a phenylene group substituted with an alkyl group or a halogen atom; and X represents a divalent group selected from ##STR3## --O--, --S--, --SO--, and --SO.sub.2 --, wherein R.sup.3 and R.sup.4 each represents a hydrogen atom or an alkyl group; and R.sup.5 represents an alkylene group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.