Overcoat for thermal dye transfer receiving element
US5620942A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1996 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Jun 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dye-receiving element for thermal dye transfer comprising a support having on one side thereof, in order, a dye image-receiving layer and an overcoat layer thereon, the overcoat layer comprising: PA1 a) a linear condensation copolymer containing block polysiloxane units copolymerized into a linear polymer chain, the linear copolymer comprising from about 1 to about 40 wt. % of polysiloxane units; and PA1 b) a polycarbonate having a Tg of from about 10.degree. C. to about 120.degree. C. and a molecular weight of from about 1,000 to about 6,000, said polycarbonate having the following formula: ##STR1## wherein R.sup.3 represents hydrogen, methyl or ethyl; PA2 R.sup.4 repesents hydrogen, alkyl of 1 to 6 carbon atoms or halogen; PA2 a represents an integer from 2 to 10; PA2 d is an integer from 1 to 6; and PA2 W represents ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.