Hydrophilic polymer coatings with durable lubricity and compositions and methods thereof

• US 10,449,084 B2
• Filed: 02/05/2019
• Issued: 10/22/2019
• Est. Priority Date: 10/14/2016
• Status: Expired due to Fees

• Current Assignee: Hydroglyde Coatings LLC
• Original Assignee: Hydroglyde Coatings LLC
• Inventors: Chin, Stacy Lee, Cooper, Benjamin Goldman, Xiao, Ruiqing, Grinstaff, Mark W.
• Primary Examiner(s): Nelson, Kerl J
• Application Number:
  US16/267,872
• Publication Number:
  US 20190167468A1
• Time in Patent Office: 259 Days
• Field of Search: 128842, 128844, 524503
• CPC Class Codes: A61F 6/04 Condoms, sheaths or the like , e.g. combined with devices protecting against contagion
• CPC Class Codes: B29C 41/22 Making multilayered or multicoloured articles
• CPC Class Codes: B32B 2307/728 Hydrophilic
• CPC Class Codes: B32B 27/26 using curing agents
• CPC Class Codes: B32B 27/28 comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
• CPC Class Codes: B32B 27/285 comprising polyethers
• CPC Class Codes: B32B 27/30 comprising vinyl (co)polymers; comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/302 comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
• CPC Class Codes: B32B 27/306 comprising vinyl acetate or vinyl alcohol (co)polymers
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: C08J 2300/26 Elastomers
• CPC Class Codes: C08J 2307/00 Characterised by the use of natural rubber
• CPC Class Codes: C08J 2307/02 Latex
• CPC Class Codes: 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
• CPC Class Codes: C08J 2407/02 Latex
• CPC Class Codes: C08J 2409/02 Copolymers with acrylonitrile
• CPC Class Codes: C08J 7/042 with two or more layers, where at least one layer of a composition contains a polymer binder
• CPC Class Codes: 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
• CPC Class Codes: C08J 7/056 Forming hydrophilic coatings
• CPC Class Codes: C08L 11/02 Latex
• CPC Class Codes: C08L 29/04 : Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• CPC Class Codes: C08L 7/02 : Latex
• CPC Class Codes: C08L 9/08 : Latex
• CPC Class Codes: C09D 107/02 : Latex
• CPC Class Codes: C09D 109/08 : Latex

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

1. 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 layer disposed on and adhered to at least a portion of the outer surface of the sheath and a second layer disposed on and adhered to at least a portion of the first layer, wherein

the first layer is a cured latex polymer; and

the second 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 kDa, wherein the weight ratio of the hydrophilic polymer to the latex polymer is in the range from about 10;

1 to about 1;

10.

2. The latex condom of claim 1, wherein the layered coating comprising a third layer disposed on and adhered to the second layer, wherein the third 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.

3. The latex condom of claim 2, wherein the layered coating comprising a further layer disposed on and adhered to the third layer, wherein the further 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.

4. The latex condom of claim 2, 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.

5. The latex condom of claim 1, wherein the elastomeric material is synthetic rubber latex.

6. The latex condom of claim 1, wherein the elastomeric material is natural rubber latex.

7. The latex condom of claim 5, wherein the synthetic rubber latex is synthetized from isoprene, nitrile, butadiene, styrene-butadiene, chloroprene, isobutylene, or co-polymers thereof.

8. The latex condom of claim 1, wherein the weight ratio of the hydrophilic polymer to the latex polymer is in the range from about 1:

1 to about 10;

1.

9. The latex condom of claim 1, wherein the hydrophilic polymer comprises one of poly(vinyl pyrrolidone)(PVP), poly(ethylene glycol) (PEG), and poly(vinyl alcohol) (PVA).

10. The latex condom of claim 1, wherein the hydrophilic polymer comprises PVP.

11. The latex condom of claim 10, wherein the hydrophilic polymer comprises a second hydrophilic polymer.

12. The latex condom of claim 1, further comprising a silicon-based or water-based lubricant applied to the top layer.

13. The latex condom of claim 1, further comprising a coating of powders or dusting agents, selected from cornstarch, baby powder, or talc, applied to the top layer.

14. The latex condom of claim 1, wherein upon contacting with moisture or water, the top layer becomes slippery with durable lubricity.

15. A packaged condom product comprising one or more latex condoms of claim 1.