Back to results
US 2017/0349766 A1Published application
Opacifying compositions for pvc films
AssigneeAvery Dennison Corporation
InventorsPaul R. KLICH, Anil Vilas GAIKWAD
Life of this patent
Estimating the term…
Abstract
Various coating compositions are described which provide protection for polymeric films and particularly PVC films. The coating compositions include particular resin(s) and opacifying agents. Also described are coated films utilizing the compositions and methods of forming the coated films.
Claims129
A coating composition comprising at least one resin component and at least one opacifying agent, the resin component selected from the group consisting of:
- (i) polyvinyl acrylate copolymer with —COOH functionality having a Tg within a range of from 20° C. to 80° C.,
- (ii) polyvinyl acrylate copolymer with —OH functionality having a Tg within a range of from 20° C. to 80° C.,
- (iii) polyester polyurethane having a softening point within a range of from 120° C. to 180° C.,
- (iv) combination of polyvinyl acrylate copolymer with —COOH functionality with a Tg within a range of from 20° C. to 80° C. with acrylate(s) having a Tg within a range of from 20° C. to 80° C.,
- (v) combination of polyvinyl acrylate copolymer with —OH functionality with a Tg within a range of from 20° C. to 80° C. with acrylate(s) having a Tg within a range of from 20° C. to 80° C., and
- (vi) acrylate(s) having a Tg within a range of from 20° C. to 80° C.
3 more elements
A method of producing a coated polymeric film, the method comprising:
- providing a polymeric film to be coated;
- providing a coating composition comprising at least one resin component, at least one solvent, and at least one opacifying agent, the resin component selected from the group consisting of (i) polyvinyl acrylate copolymer with —COOH functionality having a Tg within a range of from 20° C. to 80° C., (ii) polyvinyl acrylate copolymer with —OH functionality having a Tg within a range of from 20° C. to 80° C., (iii) polyester polyurethane having a softening point within a range of from 120° C. to 180° C., (iv) combination of polyvinyl acrylate copolymer with —COOH functionality with a Tg within a range of from 20° C. to 80° C. with acrylate(s) having a Tg within a range of from 20° C. to 80° C., (v) combination of polyvinyl acrylate copolymer with —OH functionality with a Tg within a range of from 20° C. to 80° C. with acrylate(s) having a Tg within a range of from 20° C. to 80° C., and (vi) acrylate(s) having a Tg within a range of from 20° C. to 80° C.;
- applying the coating composition to the film;
- and
- drying the applied coating composition to thereby produce a coated polymeric film.
2 more elements
A coated substrate comprising:
- a substrate;
- and
- a layer of a coating composition disposed on the substrate, wherein the coating composition includes at least one resin component and at least one opacifying agent, the resin component selected from the group consisting of (i) polyvinyl acrylate copolymer with —COOH functionality having a Tg within a range of from 20° C. to 80° C., (ii) polyvinyl acrylate copolymer with —OH functionality having a Tg within a range of from 20° C. to 80° C., (iii) polyester polyurethane having a softening point within a range of from 120° C. to 180° C., (iv) combination of polyvinyl acrylate copolymer with —COOH functionality with a Tg within a range of from 20° C. to 80° C. with acrylate(s) having a Tg within a range of from 20° C. to 80° C., (v) combination of polyvinyl acrylate copolymer with —OH functionality with a Tg within a range of from 20° C. to 80° C. with acrylate(s) having a Tg within a range of from 20° C. to 80° C., and (vi) acrylate(s) having a Tg within a range of from 20° C. to 80° C.
Dependencies are inferred from the claim text.