Cationic latex as a carrier for bioactive ingredients and methods for making and using the same
First Claim
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1. A bioactive cationic polymer latex comprising:
- a) a latex polymer comprising the polymerization product of;
i) at least one ethylenically unsaturated first monomer; and
ii) at least one ethylenically unsaturated second monomer that is cationic or a precursor to a cation;
b) at least one bioactive component at least partially encapsulated within the latex polymer; and
c) optionally, at least one sterically bulky component incorporated into the latex polymer.
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Abstract
This invention relates to latex compositions that incorporate at least one bioactive component such as an antibacterial or antifungal agent, and methods for making and using such latex compositions. The latex compositions disclosed herein can be prepared by the emulsion polymerization of the latex component monomers in the presence of the at least one bioactive component.
110 Citations
43 Claims
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1. A bioactive cationic polymer latex comprising:
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a) a latex polymer comprising the polymerization product of;
i) at least one ethylenically unsaturated first monomer; and
ii) at least one ethylenically unsaturated second monomer that is cationic or a precursor to a cation;
b) at least one bioactive component at least partially encapsulated within the latex polymer; and
c) optionally, at least one sterically bulky component incorporated into the latex polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of making a bioactive cationic polymer latex comprising initiating an emulsion polymerization of an aqueous composition comprising, at any time during the emulsion polymerization:
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a) at least one ethylenically unsaturated first monomer;
b) at least one ethylenically unsaturated second monomer that is cationic or a precursor to a cation;
c) at least one bioactive component;
d) at least one free-radical initiator;
e) optionally, at least one sterically bulky ethylenically unsaturated third monomer;
f) optionally, at least one sterically bulky polymer; and
g) optionally, at least one non nonionic surfactant. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method of making a bioactive cationic polymer latex comprising:
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a) providing an aqueous composition comprising;
i) at least one ethylenically unsaturated first monomer;
ii) at least one ethylenically unsaturated second monomer that is cationic or a precursor to a cation;
iii) optionally, at least one sterically bulky ethylenically unsaturated third monomer;
iv) at least one free-radical initiator; and
v) optionally, at least one non-ionic surfactant;
b) initiating an emulsion polymerization of the composition; and
c) adding at least one bioactive component to the composition during the emulsion polymerization process.
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Specification