Claims
- 1. In a coating composition comprising an aqueous polymeric dispersion comprising a uretahne resin derived from a multifunctional isocyanate and a polyol, the improvement wherein said composition also contains a non-ionic fluorinated surfactant of the formula: ##STR3## wherein R=H or lower alkyl, m=1-4,
- n=5-9,
- p=2-30,
- whereby the tendency of said coating composition to form repellencies on polyester films at low coating coverages is reduced.
- 2. The coating composition of claim 1 further containing a copolymer of styrene, butyl acrylate and butyl methacrylate.
- 3. The coating composition of claim 2 further containing N-methylpyrrolidone.
- 4. The coating composition of claim 1 further containing diethylene glycol monobutyl ether.
- 5. The coating composition of claim 4 wherein the concentration of said surfactant in the solution is from about 0.01 to 0.1 weight percent.
- 6. The coating composition of claim 1 wherein R=H, methyl, ethyl or n-propyl, m=1 and n=7.
- 7. A coated film comprising a stretchable carrier film formed of an immiscible blend of a polyester with another polymer having on its surface a thin, dried tie coat layer comprising a urethane resin and a non-ionic fluorinated surfactant of the formula: ##STR4## wherein R =H or lower alkyl, m=1-4,
- n=5-9,
- p=2-30,
- and a polyurethane paint layer, whereby said tie layer improves the adhesion of the paint layer to the carrier film.
- 8. A film according to claim 7 wherein R =H, methyl, ethyl or n-propyl, m =1 and n =7.
- 9. A film according to claim 7 wherien the carrier film is formed of a blend of linear polyester and a more flexible copolymer.
- 10. A film according to claim 9 wherein the carrier film is formed of an immiscible blend of a linear polyester with a rubber-modified styrene-maleic anhydride copolymer.
- 11. A film according to claim 7 wherien the paint layer is formed of an aqueous polyurethane composition.
- 12. A film according to claim 11 wherein the aqueous polyurethane composition also contains a styrene-acrylic copolymer and metal flake.
- 13. A film according to claim 7 wherien the dried tie coat layer has a thickness not greater than about 0.0025 mm.
- 14. A film according to claim 13 wherein the dried tie coat layer has a thickness not greater than about 0.001 mm.
RELATED APPLICATIONS
This application is a continuation-in-part of the application of Gerald G. Reafler, Ser. No. 116,426 filed Nov. 3, 1987.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4147679 |
Scriven et al. |
Apr 1979 |
|
4267265 |
Sugimoto et al. |
May 1981 |
|
4369221 |
Bennett |
Jan 1983 |
|
4719132 |
Porter, Jr. |
Jan 1988 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
1259398 |
|
GBX |
1352560 |
|
GBX |
Non-Patent Literature Citations (2)
Entry |
3M-The Leader in Electrofluorination, Commercial Chemicals Division/3M. |
McCutcheon's Emulsifiers & Detergents, North American Edition (1983). |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
116426 |
Nov 1987 |
|