US2018036457A1PendingUtilityA1

Coating composition for skin-contacting surface of elastomeric articles and articles containing the same

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Assignee: ALLEGIANCE CORPPriority: Oct 22, 2002Filed: Aug 22, 2017Published: Feb 8, 2018
Est. expiryOct 22, 2022(expired)· nominal 20-yr term from priority
Inventors:Shiping WangYun-Siung Tony YehJames OwensWei Cheong Wong
A61L 31/14A61L 31/049A61K 8/736A61L 31/08A61K 8/365A61B 42/10A61L 31/16A61Q 19/007A61K 8/498A61K 8/891A61K 8/0204A61L 31/10A61K 8/345A61Q 90/00A41D 19/0006A61L 31/141Y10T428/3188Y10T428/31855A41D 19/0055Y10T428/31931A41D 2400/32A61Q 19/00A61K 2800/5922C08L 5/08A61K 8/60A61K 8/42
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Claims

Abstract

The invention described herein relates to a therapeutic, moisturizing coating composition for elastomeric articles which is applied directly onto the skin-contacting surface of the article as part of the manufacturing process. The coating composition is thermally stable and subsequently hydrates when contacted with a moisturized skin surface to convert into a liquid “lotion” form during wearing of the article. The coating composition provides therapeutic benefits to the wearer's skin as a result of wearing the article, such as improved skin moisturization, softness of feel, improved skin elasticity and firmness, and reduced redness and irritation. The invention is particularly useful in medical gloves, including examination and surgical gloves.

Claims

exact text as granted — not AI-modified
1 . An elastomeric article comprising: an elastomeric layer; and
 a coating formed from a coating composition, the coating composition comprising:
 at least two polyhydric alcohol moisturizers; 
   wherein the coating is water-soluble and hydratable upon contact with skin.   
     
     
         2 . The elastomeric article according to  claim 1 , wherein the coating composition further comprises an acidic pH adjuster. 
     
     
         3 . The elastomeric article according to  claim 2 , further comprising sodium citrate, wherein sodium citrate acts as a buffer to the acidic pH adjuster. 
     
     
         4 . The elastomeric article according to  claim 2 , wherein the acidic pH adjuster comprises an organic acid. 
     
     
         5 . The elastomeric article according to  claim 4 , wherein the acidic pH adjuster is citric acid. 
     
     
         6 . The elastomeric article according to  claim 5 , wherein prior to application to the elastomeric layer, citric acid is present in the coating composition in an amount of up to about 0.5% by weight of the coating composition. 
     
     
         7 . The elastomeric article according to  claim 3 , wherein prior to application to the elastomeric layer, sodium citrate is present in the coating composition in an amount of up to about 2.0% by weight of the coating composition. 
     
     
         8 . The elastomeric article according to  claim 1 , wherein the elastomeric layer comprises natural rubber. 
     
     
         9 . The elastomeric article according to  claim 1 , wherein the elastomeric layer comprises synthetic rubber. 
     
     
         10 . The elastomeric article according to  claim 9 , wherein the synthetic rubber is one of nitrile rubber, polyurethane, polyisoprene, polychloroprene, styrene block co-polymers and polymer blends thereof. 
     
     
         11 . The elastomeric article according to  claim 1 , wherein the elastomeric article is one of an examination glove and a surgeon's glove. 
     
     
         12 . The elastomeric article according to  claim 1 , wherein the at least two polyhydric alcohol moisturizers comprises at least two of glycerin, sorbitol, and pantothenol. 
     
     
         13 . The elastomeric article according to  claim 1 , wherein the at least two polyhydric alcohol moisturizers includes pantothenol and pantothenol is present in the coating composition in an amount ranging from about 0.1% to about 3.0% by weight of the coating composition. 
     
     
         14 . The elastomeric article according to  claim 1 , wherein the coating composition further comprises at least one alphahydroxy lactone. 
     
     
         15 . The elastomeric article according to  claim 14 , wherein the at least one alphahydroxy lactone comprises gluconolactone. 
     
     
         16 . The elastomeric article according to  claim 1 , wherein the coating composition further comprises a water-soluble film-forming polymer. 
     
     
         17 . The elastomeric article according to  claim 16 , wherein the water-soluble film-forming polymer comprises chitosan. 
     
     
         18 . The elastomeric article according to  claim 1 , wherein the coating composition further comprises a plasticizer. 
     
     
         19 . The elastomeric article according to  claim 1 , wherein the coating is formed by drying the coating composition on the elastomeric layer. 
     
     
         20 . The elastomeric article of  claim 1 , wherein the coating composition comprises at least three polyhydric alcohol moisturizers. 
     
     
         21 . The elastomeric article of  claim 20 , wherein the at least three polyhydric alcohol moisturizers include glycerin, sorbitol, and pantothenol. 
     
     
         22 . The elastomeric article according to  claim 1 , wherein the coating composition is applied to a surface of the article as part of the manufacturing process. 
     
     
         23 . The elastomeric article of  claim 24 , wherein the surface is the skin-contacting surface. 
     
     
         24 . The elastomeric article of  claim 1 , wherein the coating composition is thermally stable. 
     
     
         25 . The elastomeric article of  claim 1 , wherein the coating composition can withstand an elevated temperature of 70 C. 
     
     
         26 . The elastomeric article of  claim 1 , further comprising an anti-tack agent. 
     
     
         27 . The elastomeric article of  claim 26 , wherein the anti-tack agent is a phosphate salt. 
     
     
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         50 . A process for making a skin-contacting elastomeric article, comprising:
 applying a coating composition to the skin-contacting surface of the elastomeric article, the coating composition comprising at least two polyhydric alcohol moisturizers and at least one alphahydroxy lactone;   wherein the composition is water-soluble and hydratable upon contact with skin;   and drying the composition on the skin-contacting surface of the article.   
     
     
         51 . The process of  claim 50 , further comprising sterilizing the glove after applying the coating composition.

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