Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1983-05-16
1985-04-02
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204165, 204168, C07C 324
Patent
active
045086060
ABSTRACT:
Surfaces of hydrophobic polymers are treated to reduce their friction resistance characteristics when in contact with an aqueous environment by exposing the surfaces to an oxidation treatment, preferably by use of radio frequency glow discharge. This oxidation is followed by exposure to atmospheric air, until there is a substantial reduction in the air-water contact angle of the surfaces. The reduced friction resistance characteristics are important in aqueous applications where there is movement between the surfaces of two polymeric materials, such as in double slideable catheters and similar medical products. This process also provides lower coefficients of friction for general polymeric products in contact with water and aqueous solutions.
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Andrade Joseph D.
Miller Frank J.
Smith Lee M.
Triolo Philip M.
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