Patent US3388713A successfully refreshed from Google Patents.
US4943460A
Expired / Lapsed
US
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Process for coating polymer surfaces and coated products produced using such process
Assignee: Snyder Laboratories Inc
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Filing: 1989-02-15
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Granted: 1990-07-24
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Expires: 2009-02-15
Abstract
Abstract Processes for treating polymeric surfaces to produce smooth, durable, slippery coatings which are able to withstand the rigors of sterilization and, long term exposure to human blood and other bodily fluids without substantial loss of their slipperiness.
Inventors
- 👤 Richard A. Markle
- 👤 Phyllis L. Brusky
- 👤 John H. Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; A; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L2/206; A61L29/00; A61L29/04; A61L29/041; A61L33/00; A61L33/06; A61L33/064; B05D7/00; B05D7/50; B05D7/56; B05D7/58; B05D7/584; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/043; C08J7/046; B05D3/00; B05D3/10; B05D3/105; C08J2383/00; C08J2383/04; C08J2433/00; C08J2433/04; C08J2433/06; C08J2433/10; C08J2433/12; C08J2439/00; C08J2439/04; C08J2439/06; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139; Y10T428/28; Y10T428/2843; Y10T428/31504; Y10T428/31652; Y10T428/31667; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
110 words
A process for treating a medical article or device having a polymeric surface to produce a smooth, durable, slippery coating comprising: applying to the polymeric surface of the said article or device a primer coat; applying to said surface a tie coat comprising a solution selected from aqueous solutions of polyacrylic acid, dimethyl formamide solutions of poly(methyl vinyl ether/maleic anhydride), 1:1 methanol/isopropanol solutions of poly(methyl vinyl ether/maleic anhydride) and solutions of poly(methyl vinyl ether/maleic anhydride) in one or more alcohols selected from the group comprising the lower alcohols of methanol through pentanol or mixtures thereof in water; and applying to said surface a slippery coating comprising a solution of polyvinylpyrrolidone.
Claim 2
Dependent Claim
110 words
A process for treating a medical article or device having a polymeric surface to produce a smooth, durable, slippery coating comprising: applying to the polymeric surface of the said article or device a primer coat; applying to said surface a tie coat comprising a solution selected from aqueous solutions of polyacrylic acid, dimethyl formamide solutions of poly(methyl vinyl ether/maleic anhydride), 1:1 methanol/isopropanol solutions of poly(methyl vinyl ether/maleic anhydride) and solutions of poly(methyl vinyl ether/maleic anhydride) in one or more alcohols selected from the group comprising the lower alcohols of methanol through pentanol or mixtures thereof in water; and applying to said surface a slippery coating comprising a solution of polyvinylpyrrolidone.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein the article has a polymeric surface selected from the group comprising silicone, polyvinyl chloride, latex, polyester, polyurethane and thermoplastic elastomers.
Claim 4
Dependent Claim
27 words
The process of claim 2 wherein the surface of the article or device is first pretreated with a quaternary organic base prior to applying the tie coat.
Claim 5
Dependent Claim
19 words
The process of claim 2 wherein the primer coat applied comprises a solution of N-trimethoxypropylsilyl polyethyleneimine in methylene chloride
Claim 6
Dependent Claim
37 words
The process of claim 2 wherein the tie coat applied comprises a solution selected from aqueous solutions of polyacrylic acids, dimethyl formamide solutions of poly(methyl vinyl ether/maleic anhydride), and 1:1 methanol/isopropanol solutions of poly(methyl vinyl ether/maleic anhydride).
Claim 7
Dependent Claim
23 words
The process of claim 2 wherein the primer coat applied comprises a solution of N-trimethoxypropylsilyl polyethyleneimine in isopropanol or in an isopropanol/methanol mixture.
Claim 8
Dependent Claim
20 words
The process of claim 2 wherein the tie coat applied comprises a 1:1 methanol/isopropanol solution of poly(methyl vinyl ether/maleic anhydride).
Claim 9
Dependent Claim
61 words
The process of claim 1 wherein the polymeric surface is silicone, latex, polyester, polyurethane and thermoplastic, the primer coat to be applied is a solution of N-trimethoxypropylsilyl polyethyleneimine in trichloroethane, the tie coat to be applied is a solution of poly(methyl vinyl ether/maleic anhydride) in 1:1 methanol/isopropanol, and the slippery coating to be applied is a solution of polyvinylpyrrolidone in water.
Claim 10
Dependent Claim
79 words
A medical article or device having a polymeric surface which has been treated to produce a smooth, durable, slippery coating, said coating being formed by applying to the polymeric surface of the said article or device a primer coat comprising a solution selected from aqueous solutions of polyacrylic acid, dimethyl formamide solutions of poly(methyl vinyl ether/maleic anhydride) and 1:1 methanol/isopropanol solutions of poly(methyl vinyl ether/maleic anhydride); and applying to said surface a slippery coating comprising a solution of polyvinylpyrrolidone.
Claim 11
Dependent Claim
79 words
A medical article or device having a polymeric surface which has been treated to produce a smooth, durable, slippery coating, said coating being formed by applying to the polymeric surface of the said article or device a primer coat comprising a solution selected from aqueous solutions of polyacrylic acid, dimethyl formamide solutions of poly(methyl vinyl ether/maleic anhydride) and 1:1 methanol/isopropanol solutions of poly(methyl vinyl ether/maleic anhydride); and applying to said surface a slippery coating comprising a solution of polyvinylpyrrolidone.
Claim 12
Dependent Claim
21 words
An article or device having a silicone, latex, polyester, polyurethane and thermoplastic surface treated in accordance with claims 5 and 6.
Claim 13
Dependent Claim
14 words
An article or device having a polymeric surface treated in accordance with claim 8.
Claim 14
Dependent Claim
19 words
An article or device having a polymeric surface treated in accordance with claim 1 which is tubular in shape.
Claim 15
Dependent Claim
19 words
An article or device having a polymeric surface treated in accordance with claim 1 which is flat in shape.
Claim 16
Dependent Claim
22 words
An article or device having a polymeric surface treated in accordance with claim 1 which is suitable for use in surgical procedures.
Claim 17
Dependent Claim
23 words
An article or device having a polymeric surface treated in accordance with claim 1 which is suitable for use as a drainage device.
Claim 18
Dependent Claim
27 words
An article or device having a polymeric surface treated in accordance with claim 1 which treated surface is suitable to withstand the rigors of sterilization by steam.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-23 | 1994-01-22 | 1994-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-23 | 1998-01-22 | 1998-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-23 | 2002-01-22 | 2002-07-24 | $7700.00 | Window Closed / Lapsed |