Method and formulation using passive electrostaticity for...

Details Method and formulation using passive electrostaticity for... Method and formulation using passive electrostaticity for...

2005-08-02

2005-08-02

Cain, Edward J. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C252S088200

Reexamination Certificate

active

06924326

ABSTRACT:
A method treats ordinary filters with an electrostatic material that will turn any filter into a passive electrostatic filter. A formulation is sprayed or otherwise applied onto the filter to increase the filter's ability to effectively reduce indoor air particulates and improve indoor air quality. The formulation includes a water-soluble dielectric formulation and can also be combined with a biocide.

REFERENCES:
patent: 4702752 (1987-10-01), Yanagawa
patent: 4944778 (1990-07-01), Yanagawa
patent: 5288298 (1994-02-01), Aston
patent: 5690719 (1997-11-01), Hodge
patent: 5753563 (1998-05-01), Guan et al.
patent: 5840245 (1998-11-01), Coombs et al.
patent: 6113815 (2000-09-01), Elfersy et al.

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