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US 2019/0290805 A1Published application
Method for preventing rectraction of aqueous drops and a medical device coated with hydrophilic coating
AssigneeCouncil of Scientific and Industrial Research
InventorsGuruswamy KUMARASWAMY, Manoj KUMAR, Mayuresh Arvind KULKARNI
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Abstract
The present invention discloses a method for preventing retraction of aqueous drops on a hydrophobic surface. The present invention also discloses a medical device coated with a hydrophilic coating comprising a substrate and a coating composition.
Claims27
A method for preventing retraction of an aqueous drop on a hydrophobic surface comprising the steps of:
- a) preparing a composition comprising a nonionic surfactant mixture having at least two surfactants dissolved in an aqueous media;
- and
- b) impinging said composition of step (a) on the hydrophobic surface;
- wherein the ratio of water to surfactant in the surfactant mixture is in the range of 95:5 to 99.9:0.1 by weight and the aqueous drop retraction is less than 5%.
1 more element
A medical device coated with a hydrophilic coating comprising a substrate and a coating composition of a non ionic surfactant mixture having at least two surfactants dissolved in an aqueous media.
Dependencies are inferred from the claim text.