Patent US4980231A successfully refreshed from Google Patents.
US4980231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating polymer surfaces and coated products produced using such process
Assignee: Snyder Laboratories Inc
•
Filing: 1989-02-15
•
Granted: 1990-12-25
•
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. An article or device suitable as a wound drainage device coated in accordance with the process described is also disclosed.
Inventors
- 👤 John H. Baker
- 👤 Kim R. Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
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; A61L29/08; A61L29/085; A61L33/00; A61L33/06; A61L33/064; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/056; C08J2479/00; C08J2479/04; C08J2479/08; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139; Y10T428/31504; Y10T428/31551; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
49 words
A process for treating an article or device having a polymeric surface to produce a smooth, durable, slippery coating comprising applying to the polymeric surface of the said article a combined solution of polyvinylpyrrdolidone (PVP) and N-trimethoxypropyl silyl polyethylenimine (PSO76) and then subjecting said article to the heat/dry cycle.
Claim 2
Dependent Claim
49 words
A process for treating an article or device having a polymeric surface to produce a smooth, durable, slippery coating comprising applying to the polymeric surface of the said article a combined solution of polyvinylpyrrdolidone (PVP) and N-trimethoxypropyl silyl polyethylenimine (PSO76) and then subjecting said article to the heat/dry cycle.
Claim 3
Dependent Claim
27 words
The process of claim 1 wherein the article has a polymeric surface selected from the group comprising silicone and polyvinyl chloride, latex, polyester, polyurethane and thermoplastic elastomers.
Claim 4
Dependent Claim
17 words
The process of claim 2 wherein the polymeric surface is silicone, latex, polyester, polyurethane and thermoplastic elastomers.
Claim 5
Dependent Claim
36 words
The process of claim 3 wherein the surface of the article is first pretreated by applying a solution of poly (methyl vinyl ether/maleic anhydride), and subjecting to a heat/dry cycle, prior to applying said combined solution.
Claim 6
Dependent Claim
22 words
The process of claim 4 wherein the poly(methyl vinyl ether/maleic anhydride) is in solution with a 1:1 mixture of methanol and isopropanol.
Claim 7
Dependent Claim
28 words
The process of claim 4 wherein the poly (methyl vinyl ether/maleic anhydride) solution contains from about 0.25 to about 5.0 weight of said poly (methyl vinyl ether/maleic anhydride).
Claim 8
Dependent Claim
25 words
The process of claim 4 wherein the poly (methyl vinyl ether/maleic anhydride) solution contains about 1.0 weight percent of said poly (methyl vinyl ether/maleic anhydride).
Claim 9
Dependent Claim
59 words
The process of claim 2 wherein the polymeric surface is silicone, the surface of the article is first pretreated by applying a solution of polymethyl (vinyl ether/maleic anhydride) is then subjected to a heat/dry cycle, and is then treated by applying a combined solution of PVP and N-trimethoxypropylsilyl (PSO76) in isopropanol and then subjected to a further heat/dry cycle.
Claim 10
Dependent Claim
40 words
The process of claim 8 wherein the combined solution of PVP and N-trimethoxypropysilyl (PSO76) in isopropanol contains from about 0.25 to about 5.0 weight percent PVP and from about 0.10 to about 2.0 weight percent PSO76 and the rest isopropanol.
Claim 11
Dependent Claim
28 words
The process of claim 8 wherein the combined solution of PVP and N-trimethoxypropysilyl (PSO76) in isopropanol contains about 2.0 weight percent PVP and about 0.2 weight percent PSO76.
Claim 12
Dependent Claim
37 words
The process of claim 8 wherein the first heat/dry cycle is carried out at about 80° C. for about 15 minutes and the second heat/dry cycle is carried out at about 80° C. for about 20 minutes.
Claim 13
Dependent Claim
12 words
The process of claim 2 wherein the polymeric surface is polyvinyl chloride.
Claim 14
Dependent Claim
34 words
The process of claim 2 wherein the polymeric surface is polyvinyl chloride and is treated with a combined solution of PVP and N-trimethoxypropysilyl (PSO76) in n-propyl alcohol and then subjected to a heat/dry cycle.
Claim 15
Dependent Claim
43 words
The process of claim 13 wherein the combined solution of PVP and N-trimethoxypropylsilyl (PSO76) in n-propyl alcohol contains from about 0.25 to about 5.0 weight percent PVP and from about 0.1 to about 2.0 weight percent PSO76 and the rest is n-propyl alcohol.
Claim 16
Dependent Claim
29 words
The process of claim 13 wherein the combined solution of PVP and N-trimethoxypropysilyl (PSO76) in n-propyl alcohol contains about 2.0 weight percent PVP and about 0.2 weight percent PSO76.
Claim 17
Dependent Claim
21 words
The process of claim 13 wherein the heat/dry cycle is carried out at least about 80° C. for about 20 minutes.
Claim 18
Dependent Claim
49 words
An article 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 a combined solution of PVP and N-trimethoxypropysilyl (PSO76) and subjecting said article or device to a heat/dry cycle.
Claim 19
Dependent Claim
49 words
An article 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 a combined solution of PVP and N-trimethoxypropysilyl (PSO76) and subjecting said article or device to a heat/dry cycle.
Claim 20
Dependent Claim
20 words
An article according to claim 17 having a silicone surface treated in accordance with any of claims 8 through 11.
Claim 21
Dependent Claim
19 words
An article according to claim 17 having a polyvinyl chloride surface treated in accordance with claims 13 and 16.
Claim 22
Dependent Claim
17 words
An article having a polymeric surface treated in accordance with claim 1 which is tubular in shape.
Claim 23
Dependent Claim
17 words
An article having a polymeric surface treated in accordance with claim 1 which is flat in shape.
Claim 24
Dependent Claim
20 words
An article having a polymeric surface treated in accordance with claim 1 which is suitable for use in surgical procedures.
Claim 25
Dependent Claim
21 words
An article having a polymeric surface treated in accordance with claim 1 which is suitable for use as a drainage device.
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) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |