Claims
- 1. A heat transfer cover film comprising:
- a substrate film;
- a transparent resin layer releasably provided on the substrate film, said transparent resin layer comprising at least one material selected from the group consisting of a wax, a slip agent, an ultraviolet absorber, an antioxidant and a fluorescent brightener;
- a release layer interleaved between said substrate film and said transparent resin layer, said release layer comprising a water soluble polymer selected from the group consisting of polyvinyl alcohol, polyvinyl pyrrolidone, gelatin, carboxymethylcellulose, methylcellulose, polyethylene oxide, gum arabic, water soluble butyral, water soluble polyester, water soluble polyurethane, water soluble polyacrylic, water soluble polyamide, and mixtures thereof;
- a heat-sensitive adhesive layer provided on said transparent resin layer, said heat-sensitive adhesive layer comprising a resin having a mean polymerization degree of 50-300 and a glass transition temperature lying in the range of 40.degree. to 75.degree. C., said resin being selected from the group consisting of polyvinyl chloride, polyvinyl acetate, a vinyl chloride/vinyl acetate copolymer and mixtures thereof; and
- a dye layer provided on said substrate film.
Priority Claims (6)
Number |
Date |
Country |
Kind |
1-180472 |
Jul 1989 |
JPX |
|
1-180473 |
Jul 1989 |
JPX |
|
1-180471 |
Jul 1989 |
JPX |
|
1-241929 |
Sep 1989 |
JPX |
|
1-325870 |
Dec 1989 |
JPX |
|
2-140011 |
May 1990 |
JPX |
|
Parent Case Info
This is a Division of application Ser. No. 08/396,791 filed Mar. 1, 1995, now U.S. Pat. No. 5,527,759, which in turn is a Rule 60 divisional application Ser. No. of 08/022,865 filed Mar. 1, 1993, now U.S. Pat. No. 5,427,997, which in turn is a Rule 62 divisional application of Ser. No. 07/663,952 filed as PCT/JP90/00909, Jul. 13, 1990, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (15)
Number |
Date |
Country |
2524846 |
Oct 1983 |
FRX |
58-149049 |
Sep 1983 |
JPX |
59-85793 |
May 1984 |
JPX |
59127798 |
Jul 1984 |
JPX |
60-064895 |
Apr 1985 |
JPX |
60-115025 |
Jun 1985 |
JPX |
60-204397 |
Oct 1985 |
JPX |
61-162388 |
Jul 1986 |
JPX |
1-155478 |
Jul 1986 |
JPX |
62-39298 |
Feb 1987 |
JPX |
62-214990 |
Sep 1987 |
JPX |
62-251190 |
Oct 1987 |
JPX |
63-293099 |
Nov 1988 |
JPX |
1-58590 |
Mar 1989 |
JPX |
1-202492 |
Aug 1989 |
JPX |
Divisions (3)
|
Number |
Date |
Country |
Parent |
396791 |
Mar 1995 |
|
Parent |
22865 |
Mar 1993 |
|
Parent |
663952 |
Apr 1991 |
|