Method of producing a filtering material

Details Method of producing a filtering material Method of producing a filtering material

1992-06-08

1994-03-22

Beck, Shrive

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Particulate or unit-dosage-article base

427244, 427428, 427427, B05D 500, A62B 1100

Patent

active

052962547

ABSTRACT:
To produce a filtering material for adsorptively capturing very fine particles such as fungus, pollen, virus, bacteria or the like at a high efficiency, an aqueous treatment solution is first prepared by dissolving porous apatite particles of 0.5 to 40% by weight, preferably, 0.5 to 30% by weight and a water soluble glucan of 0.5 to 15% by weight in water. A sheet-shaped raw material is then coated with the treatment solution with the aid of a rotating drum of which part is always dipped in the treatment solution, and thereafter, the sheet-shaped raw material having the treatment solution coated thereon is dried. Alternatively, an aqueous treatment solution prepared by dissolving only a water soluble glucan of 0.5 to 25% by weight in water may be substituted for the aforementioned aqueous treatment solution. In this case, after a sheet-shaped raw material is coated with the treatment solution, porous apatite particles are deposited on the sheet-shaped raw material by employing a dispersing process or a spraying process before the treatment solution coated on the sheet-shaped raw material is kept still wet. Subsequently, the sheet-shaped raw material having the treatment solution coated thereon and the porous apatite particles deposited thereon is dried.

REFERENCES:
patent: 3019127 (1962-01-01), Czerwonka et al.
patent: 4168326 (1979-09-01), Broemer et al.
patent: 4645757 (1987-02-01), Hjerten
patent: 4659617 (1987-04-01), Fujii et al.
patent: 4990163 (1991-02-01), Ducheyne et al.
patent: 5041252 (1991-08-01), Fujii et al.
patent: 5043069 (1991-08-01), Brandon et al.
patent: 5124177 (1992-06-01), Kasmark, Jr. et al.
patent: 5128169 (1992-07-01), Saita et al.
patent: 5143752 (1992-09-01), Nakajima et al.

Affiliated with

Also associated with

Rating

Method of producing a filtering material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing a filtering material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a filtering material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-435284