Clay Composites and their Applications
AssigneeMaterials Modification, Inc.
InventorsKausik Mukhopadhyay, Krishnaswamy Kasthuri Rangan, Tirumalai Srinivas Sudarshan
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Abstract
Clay composite sheets, mats, films or membranes without polymers. Methods of preparing clay composite sheets, mats, films or membranes without using polymers in the method. Methods of using clay composite sheets, mats, films or membranes prepared without using polymers. Antimicrobial dressing having organo-modified clay product. Transdermal delivery of drugs using organo-modified clay product and methods.
Claims32
A polymer-free organo-modified clay product comprising a clay and an organic compound, wherein the organo-modified clay product is a film.
A method of preparing a polymer-free organo-modified clay product, the method comprising:
- (a) mixing a clay particle and an organo-containing solution to form a slurry;
- (b) casting the slurry on a substrate to form a slurry casted on a substrate;
- (c) drying the slurry casted on the substrate of step (b) to obtain a dried product;
- (d) separating the dried product of step (c) to obtain the polymer-free organo-modified clay product.
A method of preparing a polymer-free organo-modified clay product, the method comprising:
- (a) mixing a clay particle and an organo-containing solution to form a slurry;
- (b) casting the slurry on a substrate to form a slurry casted on a substrate;
- (c) drying the slurry casted on the substrate of step (b) to obtain the polymer-free organo-modified clay product, wherein the organo-modified clay product is selected from the group consisting of a film, a sheet, a mat or a membrane.
A method of preparing a polymer-free organo-modified clay product comprising an antimicrobial agent, the method comprising:
- (a) mixing a clay particle and an organo-containing solution;
- (b) adding an antimicrobial agent containing solution to the product of step (a) to obtain a slurry;
- (c) casting the slurry of step (b) on a substrate;
- (d) drying the product of step (c) to obtain a dried slurry on the substrate of step (c);
- (e) separating the dried slurry of step (d) from the substrate to obtain the organo-modified clay product containing the antimicrobial agent.
A method of preparing a polymer-free organo-modified clay product comprising an analgesic, the method comprising:
- (a) mixing a clay particle and an organo-containing solution;
- (b) adding an analgesic containing solution to the product of step (a) to obtain a slurry;
- (c) casting the slurry of step (b) on a substrate;
- (d) drying the product of step (c) to obtain a dried slurry on the substrate;
- (e) separating the dried slurry of step (d) from the substrate to obtain the polymer-free organo-modified clay product comprising the analgesic compound.
An antimicrobial wound dressing comprising a polymer-free organo-modified clay product having an antimicrobial agent, the wound dressing comprising successive layers of:
- (a) a hydrogel adhesive with a hydrophobic backing;
- (b) a polymer-free organo-modified clay product having an antimicrobial agent;
- and,
- (c) a nylon membrane,
- whereby the antimicrobial wound dressing is obtained.
A method preparing an antimicrobial wound dressing comprising a polymer-free organo-modified clay product having an antimicrobial agent, the method comprising:
- successively layering the following:
- (a) a hydrogel adhesive with a hydrophobic backing;
- (b) a polymer-free organo-modified clay product having an antimicrobial agent;
- and,
- (c) a nylon membrane,
- whereby the antimicrobial wound dressing is obtained.
An analgesic wound dressing comprising a polymer-free organo-modified clay product having an analgesic, the wound dressing comprising successive layers of:
- (a) a hydrogel adhesive with a hydrophobic backing;
- (b) a polymer-free organo-modified clay product having an analgesic and,
- (c) a nylon membrane,
- whereby the analgesic wound dressing is obtained. (Spec-include transdermal dressing)
A method preparing an analgesic wound dressing comprising a polymer-free organo-modified clay product having an analgesic, the method comprising:
- successively layering the following:
- (a) a hydrogel adhesive with a hydrophobic backing;
- (b) a polymer-free organo-modified clay product having an analgesic and,
- (c) a nylon membrane,
- whereby the analgesic wound dressing is obtained.
Dependencies are inferred from the claim text.