05662960 is referenced by 61 patents and cites 40 patents.

A process for preparing coating compositions of a commingled hydrogel of a polyurethane-polyurea polymer hydrogel and a poly(N-vinylpyrrolidone) polymer hydrogel; a process for making materials composed of a polymeric plastic or rubber substrate or a metallic substrate, with a coating of the commingled hydrogel thereon; and a process for making medical devices with a coating of the commingled hydrogel thereon, are disclosed. The coating compositions tenaciously adhere to the substrate materials and medical devices to which they are applied due to bonding of a tie coat to a reactive substrate surface and due to the commingling of the two hydrogel components. The coating compositions and coated materials and medical devices are non-toxic and biocompatible, making them ideally suited for use in applications such as for catheters, catheter balloons and stents. In such applications, the coating compositions, coated materials, and coated medical devices made therefrom demonstrate low coefficients of friction in contact with body fluids, especially blood, as well as a high degree of wear permanence over prolonged use. The commingled hydrogel coatings are capable of being dried to facilitate storage of the devices to which they have been applied, and can be instantly reactivated for later use by exposure to water.

Title
Process for producing slippery, tenaciously adhering hydrogel coatings containing a polyurethane-urea polymer hydrogel commingled with a poly (n-vinylpyrrolidone) polymer hydrogel
Application Number
8/384711
Publication Number
5662960
Application Date
February 1, 1995
Publication Date
September 2, 1997
Inventor
Ni Ding
Plymouth
MN, US
Michael N Helmus
St. Louis Park
MN, US
Michael R Forman
Ramsey
CA, US
David Rhum
New York
NY, US
Fritz Hostettler
Lambertville
NJ, US
Agent
Howard R Jaeger
Lawrence C Akers
Peter C Richardson
Assignee
Schneider
MN, US
IPC
C23C 14/02
B05D 3/04
B05D 3/10
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