Antimicrobial Coating for Building Panel
In general, the present invention is directed to a building panel, such as a gypsum board, comprising a core having a first side and a second side opposing the first side and at least one facing material having a coating comprising at least one fungicide, at least one polymeric binder, and at least one pigment. The panel satisfies at least one of the following: the board exhibits a rating of 2 or less when tested in accordance to ASTM G21-15 or the board exhibits a rating of at least 8 when tested in accordance to ASTM D3273-16. The panel may also exhibit at least a Level 3 finish.
1 . A gypsum board comprising:
a gypsum core having a first side and a second side opposing the first side,
at least one paper facing material having a coating comprising at least one fungicide and at least one polymeric binder,
wherein the gypsum board satisfies at least one of the following:
the gypsum board exhibits a rating of 2 or less when tested in accordance to ASTM G21-15, or
the gypsum board exhibits a rating of at least 8 when tested in accordance to ASTM D3273-16.
2 . The gypsum board of claim 1 , wherein the gypsum board exhibits a rating of 2 or less when tested in accordance to ASTM G21-15 and a rating of at least 8 when tested in accordance to ASTM D3273-16.
3 . The gypsum board of claim 1 , wherein the coating on the at least one facing material provides the gypsum board with the appearance of a Level 5 finish.
4 . The gypsum board of claim 1 , wherein the at least one fungicide includes at least one of an azole, a strobilurin, a fludioxonil, an isothiazolinone, a pyrithione, or a mixture thereof.
5 . The gypsum board of claim 1 , wherein the at least one fungicide includes an azole, a strobilurin, a fludioxonil, or a mixture thereof.
6 . The gypsum board of claim 1 , wherein the at least one fungicide includes a mixture of thiabendazole, azoxystrobin, and fludioxonil.
7 . The gypsum board of claim 1 , wherein the at least one polymeric binder comprises a vinyl acetate polymer or copolymer, an acrylic polymer or copolymer, a styrene polymer or copolymer, a vinyl acrylic polymer or copolymer, a cellulose, a starch, or a mixture thereof.
8 . The gypsum board of claim 1 , wherein the at least one polymeric binder comprises a mixture of an acrylic polymer or copolymer, a styrene butadiene copolymer, and a cellulose.
9 . The gypsum board of claim 1 , wherein the coating further comprises at least one pigment.
10 . The gypsum board of claim 9 , wherein the at least one pigment comprises calcium carbonate, magnesium carbonate, titanium dioxide, or a mixture thereof.
11 . The gypsum board of claim 1 , wherein the coating comprises a polyolefin wax.
12 . A wall assembly comprising the gypsum board of claim 1 .
13 . A gypsum board comprising:
a gypsum core having a first side and a second side opposing the first side,
at least one paper facing material having a coating comprising at least one polymeric binder and at least one pigment,
wherein the gypsum board satisfies at least one of the following:
the gypsum board exhibits a rating of 2 or less when tested in accordance to ASTM G21-15, or
the gypsum board exhibits a rating of at least 8 when tested in accordance to ASTM D3273-16.
14 . The gypsum board of claim 13 , wherein the gypsum board exhibits a rating of 2 or less when tested in accordance to ASTM G21-15 and a rating of at least 8 when tested in accordance to ASTM D3273-16.
15 . The gypsum board of claim 13 , wherein the coating on the at least one facing material provides the gypsum board with the appearance of a Level 5 finish.
16 . The gypsum board of claim 13 , wherein the at least one pigment comprises a white pigment.
17 . The gypsum board of claim 13 , wherein the at least one pigment comprises calcium carbonate, magnesium carbonate, titanium dioxide, or a mixture thereof.
18 . The gypsum board of claim 13 , wherein the at least one polymeric binder comprises a vinyl acetate polymer or copolymer, an acrylic polymer or copolymer, a styrene polymer or copolymer, a vinyl acrylic polymer or copolymer, a cellulose, a starch, or a mixture thereof.
19 . The gypsum board of claim 13 , wherein the at least one polymeric binder comprises a mixture of an acrylic polymer or copolymer, a styrene butadiene copolymer, and a cellulose.
20 . The gypsum board of claim 13 , wherein the coating comprises at least one fungicide.
21 . The gypsum board of claim 20 , wherein the at least one fungicide includes at least one of an azole, a strobilurin, a fludioxonil, an isothiazolinone, a pyrithione, or a mixture thereof.
22 . The gypsum board of claim 20 , wherein the at least one fungicide includes a mixture of thiabendazole, azoxystrobin, and fludioxonil.
23 . The gypsum board of claim 13 , wherein the coating comprises a polyolefin wax.
24 . A wall assembly comprising the gypsum board of claim 13 .