Polymeric films having anti-static properties
OwnerJames R. Porter, William A. Koonce +2inventors
InventorsJames R. Porter, William A. Koonce, Debkumar Bhattacharjee, Franklin E. Parks
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Abstract
A process for preparing an anti-static film comprising incorporating a conductivity inducing material into a polymeric film. The conductivity inducing material is a non-volatile metal salt. The polymeric film is selected from polyurethane, polyolefins, polyvinyl chloride, nitrile rubber, polyisoprene, hydrogenated block copolymers, styrene-isoprene-styrene/styrene-butadiene-styrene block copolymers, styrene butadiene latexes, and natural rubber latex. Anti-static films and gloves prepared from such process are also disclosed.
Claims26
A process for preparing an anti-static film comprising:
- incorporating a conductivity inducing material into a polymeric film.
A process for preparing an anti-static film comprising:
- dipping a former into a polymeric dispersion to form a coated former;
- and
- dipping the coated former into a solution comprising a conductivity inducing material.
A process for preparing an anti-static film comprising:
- dipping a former into a polymeric dispersion to form a film on the former;
- stripping the film from the former;
- and thereafter dipping the film into a solution comprising a conductivity inducing material.
A process for preparing an anti-static polyurethane film comprising:
- admixing a polyol and a conductivity inducing material to form a polyol mixture;
- admixing the polyol mixture with an isocyanate to form a prepolymer;
- dispersing the prepolymer in water to form a polyurethane dispersion;
- and
- dipping a former into the polyurethane dispersion to form the anti-static film.
An anti-static film comprising:
- a polymeric film;
- and
- a conductivity inducing material incorporated into the film.
An anti-static glove comprising:
- a polymeric film;
- and
- a conductivity inducing material incorporated in the film.
Dependencies are inferred from the claim text.