EP0627474B1
Expired / Lapsed
EP
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Aqueous silicone coating compositions
Assignee: Covidien AG
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Filing: 1994-04-22
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Granted: 2000-10-25
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Expires: 2014-04-22
Abstract
Abstract An aqueous silicone coating composition containing a reactive siloxane polymer and a non-reactive dimethylpolysiloxane in an aqueous carrier having an effective amount of at least one dispersing agent to disperse the siloxanes throughout the aqueous carrier. Also provided is a method of lubricating substrates by applying an aqueous silicone coating composition to the substrate and curing the silicone thereon, as well as lubricated surgical needles prepared by that method.
Inventors
- 👤 Janniah S. Prasad
- 👤 Dario Vitali
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; A; A61; A61L; A61L31/00; A61L31/08; A61L31/10; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; C09; C09D; C09D183/00; C09D183/04; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06066; C08J2383/00; C08J2383/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
58 words
A silicone coating composition comprising in an aqueous solution based on
the total weight of the composition 0.1 to 2.0% w/w of a non-reactive
polydimethylsiloxane, 0.5 to 10.0% w/w of an aminoalkyl siloxane, 0.5 to 7.0%
w/w of a cyclosiloxane and an effective amount of at least one dispersing agent
to disperse said siloxanes throughout the aqueous solution.
Claim 2
Dependent Claim
49 words
The coating composition of claim 1, wherein the silicone in said coating
composition is in a range of from 0.5 to 20 percent by weight of the
composition and/or the aqueous mixture contains an amount of water in the
range of 65 to weight percent of the total composition.
Claim 3
Dependent Claim
40 words
The coating composition of claim 1, wherein the dispersing agent is selected
from the group consisting of propylene glycol and an octylphenoxy
polyethoxyethanol of the formula: wherein n is in the range of 5 to 15 and a mixture thereof.
References Cited (Backward Citations)
No citation records indexed.
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