Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1996-07-29
1997-11-18
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
252518, 428404, C08K 900
Patent
active
056888414
ABSTRACT:
An antistatic aromatic polyimide film containing from 14 to 50% by weight of electrically conductive silica particles coated with a layer of antimony-containing tin oxide and having a surface resistivity ranging from 10.sup.4 to 10.sup.12 ohms/square. The polyimide film exhibits excellent antistatic properties even after heat-treatment at high temperatures of 400.degree. C. or above, while maintaining good heat resistance and mechanical properties. The polyimide film can be used in various applications requiring good antistatic properties such as copier belts, space blankets and flexible circuit substrates.
REFERENCES:
patent: 4373013 (1983-02-01), Yoshizumi
patent: 4452830 (1984-06-01), Yoshizumi
patent: 5324766 (1994-06-01), Ikejiri
patent: 5512350 (1996-04-01), Ryoke
E. I. Du Pont de Nemours and Company
Michl Paul R.
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