Biocidal coating composition
AssigneeGlynson Industries, Inc.
InventorsWilliam A. Mallow, Bryan Glynson, Larry Rogers
Life of this patent
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Abstract
The present invention prolongs the biocidal activity of hydrated lime in a paint or coating by using a sufficient amount of a binder in the paint or coating to block carbon dioxide from reacting with the hydrated lime while still producing a coating that is durable and adhesive upon drying and not unduly friable due to the amount of hydrated lime in said coating
Claims28
A biocidal coating composition comprising:
- (a) hydrated lime, and
- (b) an organic soluble or water soluble cellulosic polymer;
- said cellulosic polymer forming a film permeable to water and impermeable to carbon dioxide;
- the ratio, in parts by weight, of said lime to said cellulosic polymer being about 1:1 to 3:1 and wherein the total quantity of solids in said composition is insufficient to disrupt continuity of said film thereby permitting said film to act as an effective barrier against carbon dioxide.
A biocidal coating composition comprising:
- (a) hydrated lime,
- (b) an organic soluble or water soluble cellulosic polymer, and
- (c) a humectant;
- said cellulosic polymer forming a film permeable to water and impermeable to carbon dioxide;
- the ratio, in parts by weight, of said lime to said cellulosic polymer being about 1:1 to 3:1 and wherein the total quantity of solids in said composition is insufficient to disrupt continuity of said film thereby permitting said film to act as an effective barrier against carbon dioxide.
A biocidal paint comprising:
- (a) hydrated lime,
- (b) an organic soluble or water soluble cellulosic polymer, and
- (c) a humectant;
- said cellulosic polymer forming a film permeable to water and impermeable to carbon dioxide;
- the ratio, in parts by weight, of said lime to said cellulosic polymer being about 1:1 to 3:1 and wherein the total quantity of solids in said composition is insufficient to disrupt continuity of said film thereby permitting said film to act as an effective barrier against carbon dioxide.
A substrate surface comprising a biocidal coating wherein said coating comprises:
- (a) hydrated lime, and
- (b) an organic soluble or water soluble cellulosic polymer;
- said cellulosic polymer forming a film permeable to water and impermeable to carbon dioxide;
- the ratio, in parts by weight, of said lime to said cellulosic polymer being about 1:1 to 3:1 and wherein the total quantity of solids in said composition is insufficient to disrupt continuity of said film thereby permitting said film to act as an effective barrier against carbon dioxide.
A biocidal paint comprising:
- (a) a total quantity of solids consisting essentially of hydrated lime, a filler, and a pigment,
- (b) an organic soluble or water soluble cellulosic polymer, and
- (c) a humectant;
- said cellulosic polymer forming a film permeable to water and impermeable to carbon dioxide;
- the ratio, in parts by weight, of said lime to said cellulosic polymer being about 1:1 to 3:1 and wherein the total quantity of solids in said composition is insufficient to disrupt continuity of said film thereby permitting said film to act as an effective barrier against carbon dioxide.
A biocidal paint comprising hydrated lime, a cellulosic polymer selected from ethylcellulose or hydroxy propylmethyl cellulose, and a humectant;
- said cellulosic polymer forming a film permeable to water and impermeable to carbon dioxide;
- the ratio, in parts by weight, of said lime to said ethylcellulose being about 1:1 to 3:1, and wherein the total quantity of solids in said paint is insufficient to disrupt continuity of said film thereby permitting said film to act as an effective barrier to carbon dioxide.
Dependencies are inferred from the claim text.