Ion implantation of silicone rubber

Coating processes – Direct application of electrical – magnetic – wave – or... – Ion plating or implantation

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427296, 427527, B05D 306

Patent

active

052233090

ABSTRACT:
A process to improve the surface properties of products made, at least in part, from silicone rubber is disclosed. The products find uses in industrial and medical device applications, such as drug-pump seals and valves, membranes, mammary prostheses, artificial heart diaphragms, pacemaker lead insulation and the like. The process is designed to change the silicone rubber's surface to one that is characterized by low friction, being antithrombotic, inkable, more wear resistant and deformable, and also being hydro-compatible. The process includes subjecting the product's silicone rubber surface to ion bombardment with gaseous ions that diffuse out with doses and at energy levels at least about 3E14 ions/cm.sup.2 at 80 keV.

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patent: 4743308 (1988-05-01), Sioshansi et al.
patent: 4743493 (1988-05-01), Sioshansi et al.
M. S. Dresselhaus et al. "Ion Implantation of Polymers" Mat. Resources Soc. Symp. Proc., vol. 27 (1984) pp. 413-422.
Yoshiaki Suzuki et al. "Effects of Ion Implantation on Protein Absorption onto Silicone Rubber." Mat. Res. Soc. Symp. Proc., vol. 110, MRS, 1989.

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