Film With Absorbing Coating

1 . A multilayer film comprising:

a polymeric film layer; and

an absorbing layer on a side of the polymeric film layer, the absorbing layer comprising a palladium complex and at least one of a cyclodextrin, a hydrophobin protein, and a derivative thereof, in amounts effective to absorb an odor, a volatile organic compound, or both.

2 . The multilayer film of claim 1 , further comprising an adhesive layer on a second side of the polymeric film layer opposite the first side.

3 . The multilayer film of claim 2 , wherein the adhesive layer comprises a pressure sensitive adhesive.

4 . The multilayer film of claim 2 , wherein the adhesive layer comprises at least one of a cyclodextrin, a hydrophobin protein, and a derivative thereof.

5 . The multilayer film of claim 1 , wherein the absorbing layer further comprises an antibacterial agent.

6 . The multilayer film of claim 1 , wherein the absorbing layer further comprises a binder.

7 . The multilayer film of claim 6 , wherein the binder comprises at least one of a cement, an alkyd, an acrylic, a vinyl-acrylic, a vinyl acetate/ethylene, a polyurethane, a polyester, a melamine resin, an epoxy, and an oil.

8 . The multilayer film of claim 1 , wherein the palladium complex comprises a palladium carboxylate.

9 . The multilayer film of claim 8 , wherein the palladium carboxylate is selected from the group consisting of palladium tartrate, palladium succinate, palladium mesoxalate, palladium gluconate, and a combination thereof.

10 . The multilayer film of claim 1 , wherein the absorbing layer comprises between about 0.1 and about 0.75 percent by weight of the palladium complex.

11 . The multilayer film of claim 1 , wherein the absorbing layer comprises between about 2 and about 7 percent by weight of the cyclodextrin.

12 . The multilayer film of claim 1 , wherein the absorbing layer comprises between about 0.1 and about 0.5 percent by weight of the hydrophobin protein.

13 . The multilayer film of claim 1 , wherein the absorbing layer comprises between about 0.1 and about 0.75 percent by weight of the palladium complex, between about 2 and about 7 percent by weight of the cyclodextrin, and between about 0.1 and about 0.5 percent by weight of the hydrophobin protein.

14 . The multilayer film of claim 1 , wherein the absorbing layer comprises the cyclodextrin, and the cyclodextrin comprises a methyl-beta cyclodextrin.

15 . The multilayer film of claim 1 , wherein the polymeric film layer comprises at least one of polyethylene, polypropylene, polyvinyl chloride, and polyethylene terephthalate.

16 . The multilayer film of claim 1 , wherein the multilayer film has a sufficient absorbing capability such that a section of the multilayer film having an absorbing layer with a surface area of between 280 and 320 cm 2 and placed in a chamber having a volume of 400 cm 3 with 2 cc of an n-butanol saturated atmosphere injected into the chamber absorbs greater than about 80 percent of the n-butanol in 1 hour.

17 . A process for making a multilayer film comprising a polymeric film layer, an adhesive layer, and an absorbing layer capable of absorbing an odor, a volatile organic compound, or both, the process comprising:

providing the polymeric film layer;

applying to a first surface of the polymeric film layer an adhesive;

applying to a second surface of the polymeric film layer an absorbing topcoat solution comprising a palladium complex and at least one of a cyclodextrin and a hydrophobin protein; and

drying the absorbing topcoat solution to form the absorbing layer comprising the palladium complex and the at least one of a cyclodextrin and a hydrophobin protein in amounts effective to absorb an odor, a volatile organic compound, or both.

18 . The process of claim 17 further comprising UV curing the absorbing topcoat solution to form the absorbing layer.

19 . The process of claim 17 wherein the palladium complex is formed by combining a palladium salt with a complexing agent.

20 . The process of claim 19 wherein the palladium salt is selected from the group consisting of palladium chloride, palladium sulfate, palladium nitrate, and a combination thereof.

21 . The process of claim 19 wherein the complexing agent comprises a carboxylic acid selected from the group consisting of tartaric acid, succinic acid, mesoxalic acid, gluconic acid, and a combination thereof.

22 . An absorbing topcoat adapted to be disposed on a substrate, the absorbing topcoat capable of absorbing an odor, a volatile organic compound, or both and comprising:

a palladium complex; and

at least one of a cyclodextrin, a hydrophobin protein, and a derivative thereof in amounts effective to absorb an odor, a volatile organic compound, or both.

23 . The absorbing topcoat of claim 22 , further comprising an antibacterial agent.

24 . The absorbing topcoat of claim 22 , further comprising a binder.

25 . The absorbing topcoat of claim 24 , wherein the binder comprises at least one of a cement, an alkyd, an acrylic, a vinyl-acrylic, a vinyl acetate/ethylene, a polyurethane, a polyester, a melamine resin, an epoxy, and an oil.

26 . The absorbing topcoat of claim 22 , wherein the palladium complex comprises a palladium carboxylate.

27 . The absorbing topcoat of claim 26 , wherein the palladium carboxylate is selected from the group consisting of palladium tartrate, palladium succinate, palladium mesoxalate, palladium gluconate, and a combination thereof.

28 . The absorbing topcoat of claim 22 , wherein the absorbing topcoat comprises between about 0.1 and about 0.75 percent by weight of the palladium complex.

29 . The absorbing topcoat of claim 22 , wherein the absorbing topcoat comprises between about 2 and about 7 percent by weight of the cyclodextrin.

30 . The absorbing topcoat of claim 22 , wherein the absorbing topcoat comprises between about 0.1 and about 0.5 percent by weight of the hydrophobin protein.

31 . A process for making an absorbing topcoat adapted to absorb an odor, a volatile organic compound, or both, the process comprising:

combining a palladium salt and at least one of a carboxylic acid and a chloride to form a palladium complex solution;

combining (a) at least one of a cyclodextrin, a hydrophobin protein, and a derivative thereof, (b) the palladium complex solution, and (c) a coating liquid to form an absorbing topcoat solution; and

applying the absorbing topcoat solution to a substrate.

32 . The process of claim 31 , wherein the palladium salt is selected from the group consisting of palladium chloride, palladium sulfate, palladium nitrate, and a combination thereof.

33 . The process of claim 31 , wherein the carboxylic acid is selected from the group consisting of tartaric acid, succinic acid, mesoxalic acid, gluconic acid, and a combination thereof.

34 . The process of claim 31 , further comprising combining the palladium complex solution with an alkaline compound.

35 . The process of claim 34 , wherein the alkaline compound is selected from the group consisting of potassium hydroxide, sodium hydroxide, and a combination thereof.

36 . The process of claim 31 , wherein the coating liquid comprises a polymer dispersion.

37 . The process of claim 31 , wherein the coating liquid comprises at least one of a paint and a varnish.

38 . An absorbing solution adapted to absorb an odor, a volatile organic compound, or both, the absorbing solution comprising, in combination:

a palladium salt;

a complexing agent comprising at least one of a carboxylic acid and a chloride; and

at least one of a cyclodextrin, a hydrophobin protein, and a derivative thereof.

39 . The absorbing solution of claim 38 , wherein the palladium salt is selected from the group consisting of palladium chloride, palladium sulfate, palladium nitrate, and a combination thereof.

40 . The absorbing solution of claim 38 , wherein the complexing agent comprises the carboxylic acid, and the carboxylic acid is selected from the group consisting of tartaric acid, succinic acid, mesoxalic acid, gluconic acid, and a combination thereof.

41 . The absorbing solution of claim 38 , wherein the absorbing solution comprises between about 0.001 and about 0.045 percent by weight of the palladium salt.

42 . The absorbing solution of claim 38 , wherein the absorbing solution comprises between about 0.01 and about 0.5 percent by weight of the carboxylic acid.

43 . An absorbing product configured to absorb an odor, a volatile organic compound, or both, the absorbing product comprising:

a substrate comprising a surface; and

an absorbing topcoat disposed on the surface of the substrate, the absorbing topcoat comprising a palladium complex and at least one of a cyclodextrin, a hydrophobia protein, and a derivative thereof in amounts effective to absorb an odor, a volatile organic compound, or both.

44 . The absorbing product of claim 43 , wherein the substrate comprises a polymeric film layer.

45 . The absorbing product of claim 43 , wherein the absorbing topcoat further comprises an antibacterial agent.

46 . The absorbing product of claim 43 , wherein the absorbing topcoat further comprises a binder.

47 . The absorbing product of claim 46 , wherein the binder comprises at least one of a cement, an alkyd, an acrylic, a vinyl-acrylic, a vinyl acetate/ethylene, a polyurethane, a polyester, a melamine resin, an epoxy, and an oil.

48 . The absorbing product of claim 43 , wherein the palladium complex comprises a palladium carboxylate.

49 . The absorbing product of claim 48 , wherein the palladium carboxylate is selected from the group consisting of palladium tartrate, palladium succinate, palladium mesoxalate, palladium gluconate, and a combination thereof.

50 . The absorbing product of claim 43 , wherein the absorbing topcoat comprises between about 0.1 and about 0.75 percent by weight of the palladium complex.

51 . The absorbing product of claim 43 , wherein the absorbing topcoat comprises between about 2 and about 7 percent by weight of the cyclodextrin.

52 . The absorbing product of claim 43 , wherein the absorbing topcoat comprises between about 0.1 and about 0.5 percent by weight of the hydrophobin protein.

53 . The absorbing product of claim 43 , wherein the absorbing product has a sufficient absorbing capability such that a section of the absorbing product having an absorbing topcoat with a surface area of between 280 and 320 cm 2 and placed in a chamber having a volume of 400 cm 3 with 2 cc of an n-butanol saturated atmosphere injected into the chamber absorbs greater than about 80 percent of the n-butanol in 1 hour.

54 . A method for purifying interior air, the method comprising:

applying to an interior surface of a habitable structure an absorbing topcoat adapted to absorb an odor, a volatile organic compound, or both, the absorbing topcoat comprising a palladium complex and at least one of a cyclodextrin, a hydrophobin protein, and a derivative thereof; and

allowing the absorbing topcoat to be maintained in contact with the interior air for a period of time to absorb at least a portion of the odor or the volatile organic compound present in the interior air;

wherein the absorbing topcoat purifies the interior air without energy consumption and without photocatalyzation.