Method of forming a membrane, especially a latex membrane, having a biocide barrier
First Claim
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1. A method of making a material having a biocide barrier comprising the steps of:
- applying a first coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers onto a former;
applying a coating of biocide over the first coating already on the former; and
applying a second coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide and the first coating.
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Abstract
Methods of forming a chemical barrier against the transmission of disease-causing microbes and other harmful agents through a membrane such as latex. In the principal method, a mold or former is coded with a coagulant, which is dried, and then the former is dipped into liquid latex, which is allowed to gel, and then the former is dipped into a solution containing the biocide, and then the former is dipped again into the liquid latex, after which the entire coating on the former is cured. Alternatively, the biocide may be sprayed or otherwise applied onto the gelled latex.
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Citations
24 Claims
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1. A method of making a material having a biocide barrier comprising the steps of:
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applying a first coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers onto a former; applying a coating of biocide over the first coating already on the former; and applying a second coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide and the first coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of making a material having a biocide barrier comprising the steps of:
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applying a first coating of biocide onto a former; and applying a coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide coating already on the former. - View Dependent Claims (11, 12, 13)
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14. A method of making an article selected from the group consisting of gloves, condoms, diaphragms, slippers, overshoes, sterile bands, catheters, tubing, drapes, gut openings, mouthpieces, nipples, intra gastric nasal tubes, kidney shunts, dams for teeth, braces for teeth, sub-clavian vein and artery shunts, and colostomy bags having a biocide barrier comprising the steps of:
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applying a first coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers onto a former; applying a coating of biocide over the first coating already on the former; and applying a second coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide and the first coating.
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15. A method of making an article selected from the group consisting of gloves, condoms, diaphragms, slippers, overshoes, sterile bands, catheters, tubing, drapes, gut openings, mouthpieces, nipples, intra gastric nasal tubes, kidney shunts, dams for teeth, braces for teeth, sub-clavian vein and artery shunts, and colostomy bags having a biocide barrier comprising the steps of:
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applying a first coating of biocide onto a former; and applying a coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide coating already on the former.
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16. A method of making an article selected from the group consisting of gloves, condoms, diaphragms, slippers, overshoes, sterile bands, catheters, tubing, drapes, gut openings, mouthpieces, nipples, intra gastric nasal tubes, kidney shunts, dams for teeth, braces for teeth, sub-clavian vein and artery shunts, and colostomy bags having a biocide barrier comprising the steps of:
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applying a first coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers onto a former; applying a coating of biocide comprising gentian violet over the first coating already on the former; and applying a second coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide and the first coating. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method of making an article selected from the group consisting of gloves, condoms, diaphragms, slippers, overshoes, sterile bands, catheters, tubing, drapes, gut openings, mouthpieces, nipples, intra gastric nasal tubes, kidney shunts, dams for teeth, braces for teeth, sub-clavian vein and artery shunts, and colostomy bags having a biocide barrier comprising the steps of:
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applying a first coating of a biocide comprising gentian violet onto a former; and applying a coating of a liquid material selected from the group consisting of polymeric latex, a polymer dissolved in a solvent, and liquid polymers over the biocide coating already on the former.
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Specification