Deodorants and gas filters therefor

Details Deodorants and gas filters therefor Deodorants and gas filters therefor

1995-02-14

1996-08-13

Page, Thurman K.

Gas separation

With separate flow line access means or filter media passage...

For discrete filter particles

55523, 55279, 424 763, 424402, B01D 4500

Patent

active

055452400

ABSTRACT:
Deodorant comprising 5 to 100% by weight of a calcium phosphate compound having a molar ratio of Ca/P of 0.8 to 2.0, a deodorant sheet and filter sheet containing such calcium phosphate compound, and a functional paper containing 10 to 80% by weight of a calcium phosphate compound. A filtering medium for an exhaust gas comprises a ceramic material containing 5 to 100% by weight of a calcium phosphate compound, as well as a filter cartridge and exhaust gas filter containing the filtering medium. Based on the excellent properties of the incorporated calcium phosphate compound, the agents and products according to the present invention exhibit a highly improved adsorptivity to oil-soluble substances, odor substances, animal or vegetable cells, viruses, biopolymeric substances or other substances, and therefore can be advantageously used in various fields of technology. For example, the functional paper can be used as a deodorant, filter medium and adsorbent as well as a flame-retardant paper. The filtering medium, filter cartridge and filter can be used in an exhaust system to purify an exhaust gas produced therein.

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patent: 4708959 (1987-11-01), Shroot
patent: 4761366 (1988-08-01), Nakajima
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English language abstract of Japanese Patent Publication No. 61-47401.
English language abstract of Japanese Patent Publication No. 59-95931.
English language translation of pertinent portions of Japanese Patent Publication No. 58-31200.

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