US5266359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricative coating composition, article and assembly containing same and method thereof
Assignee: Becton Dickinson and Co
•
Filing: 1991-12-20
•
Granted: 1993-11-30
•
Expires: 2011-12-20
Abstract
Abstract A lubricating composition includes an emulsion of a noncuring polysiloxane, a surfactant and water. Preferred polysiloxanes include a polar group, most preferably an aminoalkyl or carboxylalkyl terminating group. Preferred surfactants are copolymers of polysiloxane and polyoxyethylene. A metal article such as a needle, blade, cannula or quidewire includes a coating of the polysiloxane and the surfactant which renders the article surface lubricious. The article may be in a sliding relationship with a plastic article in an assembly such as a catheter-quidewire or a catheter-cannula assembly. The plastic portion of the assembly may also include a lubricant. The invention includes a method of making the lubricated article.
Inventors
- 👤 David E. Spielvogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:47
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; A; A61; A61L; A61L29/00; A61L29/08; A61L29/085; A61L29/14; A61L29/16; C09; C09D; C09D183/00; C09D183/04; C09D183/06; C09D183/08; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/452; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/14; C10M2229/00; C10M2229/02; C10M2229/025; C10M2229/04; C10M2229/0405; C10M2229/041; C10M2229/0415; C10M2229/042; C10M2229/0425; C10M2229/043; C10M2229/0435; C10M2229/044; C10M2229/0445; C10M2229/045; C10M2229/0455; C10M2229/046; C10M2229/0465; C10M2229/047; C10M2229/0475; C10M2229/048; C10M2229/0485; C10M2229/05; C10M2229/0505; C10M2229/051; C10M2229/0515; C10M2229/052; C10M2229/0525; C10M2229/053; C10M2229/0535; C10M2229/054; C10M2229/0545; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/01; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
72 words
A metal article having thereon a lubricious coating comprising a noncuring polysiloxane lubricant selected from the group consisting of the formula ##STR3## wherein R 1 is NH 2 NHR 2 or COOH, R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes, and a polyoxyethylene polysiloxane copolymer surfactant.
Claim 2
Dependent Claim
72 words
A metal article having thereon a lubricious coating comprising a noncuring polysiloxane lubricant selected from the group consisting of the formula ##STR3## wherein R 1 is NH 2 NHR 2 or COOH, R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes, and a polyoxyethylene polysiloxane copolymer surfactant.
Claim 3
Dependent Claim
9 words
The article of claim 1 which is a guidewire.
Claim 4
Dependent Claim
9 words
The article of claim 1 which is a cannula.
Claim 5
Dependent Claim
9 words
The article of claim 1 which is a blade.
Claim 6
Dependent Claim
9 words
The article of claim 1 which is a needle.
Claim 7
Dependent Claim
13 words
The article of claim 1 wherein said coating further comprises an antibacterial agent.
Claim 8
Dependent Claim
73 words
A metal article having thereon a coating comprising a noncuring aminopropyl terminated polysiloxane lubricant selected from the group consisting of the formula ##STR4## wherein R 1 is NH 2 NHR 2 or COOH, R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes, and a polyoxyethylene polysiloxane copolymer surfactant.
Claim 9
Dependent Claim
73 words
A metal article having thereon a coating comprising a noncuring aminopropyl terminated polysiloxane lubricant selected from the group consisting of the formula ##STR4## wherein R 1 is NH 2 NHR 2 or COOH, R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes, and a polyoxyethylene polysiloxane copolymer surfactant.
Claim 10
Independent Claim
108 words
A method for lubricating a metal article comprising: a) providing an emulsified lubricating composition which includes water, a polyoxyethylene polysiloxane copolymer surfactant and a polysiloxane lubricant selected from the group consisting of the formula ##STR5## wherein R 1 is NH 2 NHR 2 or COOH, R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes; b) applying a coating of said composition onto a surface of a metal article; and c) removing said water from the coated metal surface to give a lubricated surface.
Claim 11
Independent Claim
108 words
A method for lubricating a metal article comprising: a) providing an emulsified lubricating composition which includes water, a polyoxyethylene polysiloxane copolymer surfactant and a polysiloxane lubricant selected from the group consisting of the formula ##STR5## wherein R 1 is NH 2 NHR 2 or COOH, R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes; b) applying a coating of said composition onto a surface of a metal article; and c) removing said water from the coated metal surface to give a lubricated surface.
Claim 12
Dependent Claim
17 words
The method of claim 8 wherein said applying is performed by dipping said article into said composition.
Claim 13
Dependent Claim
18 words
The method of claim 8 wherein said applying step is performed by spraying said composition onto said article.
Claim 14
Independent Claim
116 words
A method for lubricating a metal article comprising: a) providing an emulsified lubricating composition which includes water, a polyoxyethylene polysiloxane copolymer surfactant and an aminopropyl terminated polysiloxane lubricant selected from the group consisting of the formula ##STR6## wherein R 1 is NH 2 , R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes; b) dipping a metal article into said composition; c) withdrawing said article from said composition to give a coating on said article; and d) evaporating the water from the coating on the article to give a lubricated surface.
Claim 15
Independent Claim
116 words
A method for lubricating a metal article comprising: a) providing an emulsified lubricating composition which includes water, a polyoxyethylene polysiloxane copolymer surfactant and an aminopropyl terminated polysiloxane lubricant selected from the group consisting of the formula ##STR6## wherein R 1 is NH 2 , R 2 is lower alkyl of 1 to 4 carbon atoms, n is 2 to 4, and x is an integer sufficient to give the lubricant a viscosity of about 10 to 2,000,000 centistokes; b) dipping a metal article into said composition; c) withdrawing said article from said composition to give a coating on said article; and d) evaporating the water from the coating on the article to give a lubricated surface.
References Cited (Backward Citations)
US4413086A
Cited
US4490416A
Cited
US4631208A
Cited
US4614675A
Cited
US4645691A
Cited
US4720521A
Cited
US4981757A
Cited
US5019096A
Cited
US4844986A
Cited
EP0403400A1
Cited
US5135516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-29 | 1997-05-31 | 1997-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-29 | 2001-05-31 | 2001-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-29 | 2005-05-31 | 2005-11-30 | $7700.00 | Window Closed / Lapsed |