Biocidal delivery system of phosphate ester and method of preparation thereof
AssigneeInterface, Inc.
InventorsRobert H. McIntosh, Jr., Albin F. Turbak, Robert H. McIntosh, Sr.
Life of this patent
Estimating the term…
Abstract
A biocidal phosphate ester in combination with an inert inorganic or organic particulate or polymeric carrier. The biocidal-carrier composition is useful in extending the effective lifetime of the biocidal phosphate ester when incorporated into a variety of materials including plastics, fibrous materials, and solutions. Applications of the disclosed carrier compounds include preparation of mildew resistant paints and plastics having extended antimicrobial properties despite extensive washing and wear of the surface.
Claims22
A biocidal composition comprising
- (a) an inert carrier wherein the carrier is a synthetic or natural polymer selected from the group consisting of proteins, polysaccharides, hydrocarbon polymers, and derivatives thereof and
- (b) a biocidally effective amount of a phosphate ester having the general formula:
- ##STR3## wherein R and R' are selected from the group consisting of alkyl, aryl, aralkyl and alkaryl groups, one of R or R' can be H, and there is at least one free hydroxyl group, and
- the phosphate ester is bound to the carrier.
A biocidal composition comprising
- (a) an inert, inorganic particulate carrier selected from the group consisting of diatomaceous earth, attapulgite clay, colloidal silica and zeolite, and
- (b) a biocidally effective amount of a partially neutralized acid of a phosphate ester having the general formula:
- ##STR6## wherein R is selected from the group consisting of alkyl, aryl, aralkyl, alkaryl groups, and H, and there is at least one free hydroxyl group, and X is selected from the group consisting of organic ions, Group IA metals, Group IIA metals and transition metals, and
- the phosphate ester is bound to the carrier.
A method for manufacturing an article having antimicrobial properties comprising
- providing a biocidal composition wherein the biocidal agent consists of a phosphate agent including
- (a) an inert carrier and
- (b) a biocidally effective amount of a phosphate ester having the general formula:
- ##STR7## wherein R and R' are selected from the group consisting of alkyl, aryl, aralkyl and alkaryl groups, one of R or R' can be H, and there is at least one free hydroxyl group, and
- wherein the phosphate ester is bound to the carrier.
Dependencies are inferred from the claim text.