Lubricative coating composition, article and assembly containing

Details Lubricative coating composition, article and assembly containing Lubricative coating composition, article and assembly containing

1991-12-20

1993-11-30

Michl, Paul R.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427 2, 428 357, 428 358, 428450, 424422, 424430, 523113, 524506, 525100, 525102, B32B 1502, B32B 1508, B05D 118, A61M 2501

Patent

active

052663590

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.

REFERENCES:
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patent: 4720521 (1988-01-01), Spielvogel et al.
patent: 4844986 (1989-07-01), Karakelle et al.
patent: 4981757 (1991-01-01), Landers et al.
patent: 5019096 (1991-05-01), Fox, Jr. et al.
patent: 5135516 (1992-08-01), Sahatjian et al.

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