# US 2019/0167468 A1 · Hydrophilic polymer coatings with durable lubricity and compositions and methods thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167468 A1 - Document ID: US20190167468A1 - Status: Published application - Kind: A1 - Application number: 16/267,872 - Filed: 2019-02-05 - Published: 2019-06-06 - Earliest claimed: 2016-10-14 - Assignees: HydroGlyde Coatings LLC - Applicants: HydroGlyde Coatings LLC - Inventors: Stacy Lee Chin; Benjamin Goldman Cooper; Ruiqing Xiao; Mark W. Grinstaff - Web page: https://patentgrep.com/patent/US20190167468A1 ## CPC - A61F 6/04: Condoms, sheaths or the like {, e.g. combined with devices protecting against contagion} - B29C 41/22: Making multilayered or multicoloured articles - B32B 27/26: using curing agents - B32B 27/28: comprising synthetic resins not wholly covered by any one of the sub-groups {B32B27/30 - B32B27/42} - B32B 27/285: {comprising polyethers} - B32B 27/30: comprising vinyl {(co)polymers; comprising acrylic (co)polymers} - B32B 27/302: {comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers} - B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers} - B32B 27/36: comprising polyesters - C08J 7/042: {with two or more layers, where at least one layer of a composition contains a polymer binder} - C08J 7/043: Improving the adhesiveness of the coatings per se, e.g. forming primers (adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50) - C08J 7/056: Forming hydrophilic coatings - C08L 7/02: Latex - C08L 9/08: Latex - C08L 11/02: Latex - C09D 107/02: Latex - C09D 109/08: Latex - B32B 2307/728: Hydrophilic - C08J 2300/26: Elastomers - C08J 2307/00: Characterised by the use of natural rubber - C08J 2307/02: Latex - C08J 2347/00: Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Derivatives of such polymers (C08J2345/00 takes precedence; of conjugated diene rubbers C08J2309/00 - C08J2321/00) - C08J 2407/02: Latex - C08J 2409/02: Copolymers with acrylonitrile - C08L 29/04: Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract The invention provides a novel hydrophilic polymer and latex polymer blend coating formulation and compositions thereof, and their use on various devices (e.g., prophylactic and medical devices) to form hydrophilic and flexible coatings with durable lubricity. ## Claims ### Claim 1 An aqueous composition, comprising: a hydrophilic polymer; a suspension of latex polymer microparticles; and optionally, one or more of vulcanizing or accelerating agents, wherein the hydrophilic polymer has a mean molecular weight in the range from about 1 kDa to about 10,000 kDa and is present in the composition at a concentration from about 2 w/v % to about 10 w/v %; the latex polymer microparticles are present in the composition at a concentration from about 20 w/v % to about 65 w/v %; and the weight ratio of the hydrophilic polymer to the latex polymer microparticles is in the range from about 1:1 to about 10:1, wherein the aqueous composition is an evenly mixed and stable suspension having a viscosity in the range from about 10 cP to about 1010 cP. ### Claim at position 2 2-8. (canceled) ### Claim 9 A composition formed by mixing: a first aqueous solution of a hydrophilic polymer with a concentration in the range from about 1 w/v % to about 20 w/v %; and a second aqueous suspension of latex polymer microparticles with a concentration in the range from about 20 w/v % to about 70 w/v %; and wherein the hydrophilic polymer has a mean molecular weight in the range from about 1 kDa to about 1,000 kDa; and the volume ratio of the first aqueous solution to the second aqueous suspension is in the range from about 1:1 to about 1:3. ### Claim 10 (depends on 9) The composition of claim 9, having the hydrophilic polymer at a concentration from about 2 w/v % to about 7 w/v % and the latex polymer microparticles at a concentration from about 20 w/v % to about 60 w/v %. ### Claim 11 (depends on 9) The composition of claim 9, wherein the hydrophilic polymer comprises one or more hydrophilic polymers selected from the group consisting of: homo- or co-polymers of vinyl pyrrolidone, ethylene glycol, and/or vinyl alcohol. ### Claim 12 (depends on 9) The composition of claim 9, wherein the hydrophilic polymer comprises one of poly(vinyl pyrrolidone)(PVP), poly(ethylene glycol) (PEG), and poly(vinyl alcohol) (PVA). ### Claim 13 (depends on 12) The composition of claim 12, wherein the hydrophilic polymer comprises PVP. ### Claim 14 (depends on 13) The composition of claim 13, wherein the hydrophilic polymer comprises a second hydrophilic polymer. ### Claim 15 (depends on 9) The composition of claim 9, further comprising one or more of vulcanizing agents and/or one or more of accelerating agents. ### Claim 16 (canceled) ### Claim 17 (depends on 15) The composition of claim 15, wherein one or more of vulcanizing agents or the one or more of accelerating agents are present in the first aqueous solution a hydrophilic polymer. ### Claim 18 (depends on 15) The composition of claim 15, wherein the one or more of vulcanizing agents or the one or more of accelerating agents are present in the second aqueous suspension of latex polymer microparticles. ### Claim 19 (depends on 15) The composition of claim 15, wherein the vulcanizing agents are selected from the group consisting of: diisopropyl xanthogen polysulfide, sulfur, ammonia. ### Claim 20 (depends on 15) The composition of claim 15, wherein the accelerating agents are selected from the group consisting of: zinc-N-diethyl-dithio-carbomate, zinc-N-dibutyl-dithio-carbomate, ammonia. ### Claim 21 (depends on 9) The composition of claim 9, further comprising one or more of antimicrobials, antivirals, antifungals, vitamins, colors, or antibiotics. ### Claim at position 16 22-24. (canceled) ### Claim 25 (depends on 9) A cured material formed by heating the composition of claim 9 for a time sufficient to form interpenetrating polymer networks of crosslinked hydrophilic polymer and latex polymer. ### Claim 26 (depends on 25) The cured material of claim 25, wherein the material is a coating forming a surface of a product selected from the group consisting: a condom, a sex toy, a surgical device, a medical implant, or a glove. ### Claim at position 19 27-28. (canceled) ### Claim 29 A latex condom, comprising: a sheath of an elastomeric material selected from natural or synthetic rubber latex, the sheath having an outer surface and an inner surface; and a layered coating comprising a first or base layer disposed on and adhered to at least a portion of the outer surface of the sheath and a second or top layer disposed on and adhered to at least a portion of the first or base layer, wherein the first or base layer is a cured latex polymer; and the second or top layer is a cured blend of a latex polymer and a hydrophilic polymer having a mean molecular weight in the range from about 1 kDa to about 1,000 Da, wherein the weight ratio of the hydrophilic polymer to the latex polymer is in the range from about 10:1 to about 1:10. ### Claim 30 (depends on 29) The latex condom of claim 29, wherein the layered coating comprising a third or top layer disposed on and adhered to the second layer, wherein the third or top layer is a cured blend of latex polymer and a hydrophilic polymer having a mean molecular weight in the range from about 1 kDa to about 1,000 kDa, wherein the weight ratio of the hydrophilic polymer to the latex polymer is in the range from about 1:1 to about 10:1. ### Claim 31 (depends on 30) The latex condom of claim 30, wherein the layered coating comprising a further or top layer disposed on and adhered to the third layer, wherein the further or top layer is a cured blend of latex polymer and a hydrophilic polymer having a mean molecular weight in the range from about 1 kDa to about 1,000 kDa, wherein weight ratio of the hydrophilic polymer to the latex polymer is in the range from about 1:1 to about 10:1. ### Claim 32 (depends on 30) The latex condom of claim 30, wherein the at least a portion of the outer surface, the first layer, second layer, or the third layer, is substantially all of the outer surface, the first layer, second layer, or the third layer, respectively. ### Claim 33 (depends on 29) The latex condom of claim 29, wherein the elastomeric material is selected from natural or synthetic rubber latex. ### Claim 34 (depends on 33) The latex condom of claim 33, wherein the synthetic rubber latex is synthetized from isoprene, nitrile, butadiene, styrene-butadiene, chloroprene, isobutylene, or co-polymers thereof. ### Claim 35 (depends on 29) The latex condom of claim 29, wherein the weight ratio of the hydrophilic polymer to the latex polymer is in the range from about 1:1 to about 10:1. ### Claim 36 (canceled) ### Claim 37 (depends on 29) The latex condom of claim 29, wherein the hydrophilic polymer comprises one of poly(vinyl pyrrolidone)(PVP), poly(ethylene glycol) (PEG), and poly(vinyl alcohol) (PVA). ### Claim 38 (depends on 29) The latex condom of claim 29, wherein the hydrophilic polymer comprises PVP. ### Claim 39 (depends on 38) The latex condom of claim 38, wherein the hydrophilic polymer comprises a second hydrophilic polymer. ### Claim 40 (depends on 29) The latex condom of claim 29, further comprising a silicon-based or water-based lubricant applied to the top layer. ### Claim 41 (depends on 29) The latex condom of claim 29, further comprising a coating of powders or dusting agents, selected from cornstarch, baby powder, or talc, applied to the top layer. ### Claim 42 (depends on 29) The latex condom of claim 29, wherein upon contacting with moisture or water, the top layer becomes slippery with durable lubricity. ### Claim 43 (depends on 29) A packaged condom product comprising one or more latex condoms of claim 29. ### Claim at position 35 44-45. (canceled) ### Claim 46 A method for manufacturing a condom, comprising: providing a sheath of an elastomeric material selected from natural or synthetic rubber latex, the sheath having an outer surface and an inner surface; depositing a first layer of an aqueous suspension of a latex polymer to at least a portion of the outer surface of the sheath; curing the latex polymer with exposure to heat for a time sufficient to form a first or base layer of cured latex polymer; depositing a second layer of a composition, comprising a hydrophilic polymer and a suspension of latex polymer, to at least a portion of the first or base layer; and curing the second layer of hydrophilic polymer and latex polymer with exposure to heat for a time sufficient to form a second or top layer, wherein the hydrophilic polymer has a mean molecular weight in the range from about 1 kDa to about 1,000 kDa and is present in the composition at a concentration from about 2 w/v % to about 10 w/v %; the latex polymer microparticles are present in the composition at a concentration from about 20 w/v % to about 60 w/v %; and the weight ratio of the hydrophilic polymer to the latex polymer microparticles is in the range from about 1:1 to about 10:1. ### Claim at position 37 47-55. (canceled)