Coating Composition
A barrier coating composition may include an alcohol-based binder; and an inorganic particulate, wherein mineral oil transmission through the barrier coating is such that the reduction in measured IR intensity at 2920 cm −1 is less than 1.0%, as determined by ATR-FTIR spectroscopy.
1 - 31 . (canceled)
32 . A barrier coating composition, comprising:
an alcohol-based binder; and
an inorganic particulate, wherein mineral oil transmission through the barrier coating is such that the reduction in measured IR intensity at 2920 cm −1 is less than 1.0%, as determined by ATR-FTIR spectroscopy.
33 . A barrier coating composition according to claim 32 , wherein the inorganic particulate is selected from an alkaline earth metal carbonate or sulphate, an aluminosilicate, talc, perlite, diatomaceous earth, magnesium hydroxide and aluminum trihydrate, or combinations thereof.
34 . A barrier coating according to claim 32 , wherein the inorganic particulate is talc.
35 . A barrier coating according to claim 32 , wherein the inorganic particulate is mica.
36 . A barrier coating composition according to claim 32 , wherein the inorganic particulate is an aluminosilicate.
37 . A barrier coating composition according to claim 32 , wherein the inorganic particulate is kaolin having a shape factor of at least 30.
38 . A barrier coating composition according to claim 32 , wherein the inorganic particulate is kaolin having a shape factor of at least 90.
39 . A barrier coating composition according to claim 32 , wherein the alcohol-based binder is polyvinyl alcohol.
40 . A barrier coating composition according to claim 32 , wherein the inorganic particulate and alcohol-based binder are present in the composition in a weight ratio of from about 5:1 to about 1:5.
41 . A barrier coating composition, comprising:
an alcohol-based binder; and
an inorganic particulate, wherein mineral oil transmission through the barrier coating is such that the reduction in measured IR intensity at 2920 cm −1 is less than 20.0%, as determined by ATR-FTIR spectroscopy.
42 . A barrier coating composition according to claim 41 , wherein the inorganic particulate is selected from an alkaline earth metal carbonate or sulphate, an aluminosilicate, talc, perlite, diatomaceous earth, magnesium hydroxide and aluminum trihydrate, or combinations thereof.
43 . A barrier coating according to claim 41 , wherein the inorganic particulate is talc or mica.
44 . A barrier coating composition according to claim 41 , wherein the inorganic particulate is an aluminosilicate.
45 . A barrier coating composition according to claim 41 , wherein the inorganic particulate is kaolin having a shape factor of at least 30.
46 . A barrier coating composition according to claim 41 , wherein the alcohol-based binder is polyvinyl alcohol.
47 . A barrier coating composition according to claim 41 , wherein the inorganic particulate and alcohol-based binder are present in the composition in a weight ratio of from about 5:1 to about 1:5.
48 . A barrier coating composition, comprising:
an alcohol-based binder; and
an inorganic particulate, wherein mineral oil transmission through the barrier coating is such that the reduction in measured IR intensity at 2920 cm −1 is less than 10.0%, as determined by ATR-FTIR spectroscopy.
49 . A barrier coating composition according to claim 48 , wherein the inorganic particulate is selected from an alkaline earth metal carbonate or sulphate, an aluminosilicate, talc, perlite, diatomaceous earth, magnesium hydroxide and aluminum trihydrate, or combinations thereof.
50 . A barrier coating according to claim 48 , wherein the inorganic particulate is talc or mica.
51 . A barrier coating composition according to claim 48 , wherein the inorganic particulate is kaolin having a shape factor of at least 30.