Coating processes – Foraminous product produced – Filter – sponge – or foam
Patent
1998-02-10
1999-10-26
Dudash, Diana
Coating processes
Foraminous product produced
Filter, sponge, or foam
427179, 427201, 427212, 427337, 4273744, 427375, 4273899, 427412, B05D 134, B05D 136, B05D 302
Patent
active
059724277
ABSTRACT:
An adsorbent, supple, filter fabric composed of an air-permeable, supple, textile, carrier material having adsorbent particles fixed on it by means of a thermoplastic binding agent. The adsorbent particles are coated on their surface with binding-agent particles which are set apart from each other. The average diameter of the binding-agent particles is smaller than that of the adsorbent particles. The adsorbent particles are also bonded to each other by binding-agent particles. The coating of the carrier material with adsorbent material is over 200 g/m.sup.2. The fabric has a total thickness of 0.5 to 5 mm, and its suppleness permits a bending radius of not more than 5 mm able to be carried out free of destruction. The filter fabric is manufactured by first mixing absorbent and binding-agent particles while adding water. The mixing is followed by carrying out the following steps in continuous sequence: sprinkling of the mixture on the textile carrier material, heating above the start of melting of the binding agent, and cooling off and rolling up of the resultant supple filter fabric. The product can be used in air purification systems as well as for protective clothing.
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Dabisch Thomas
Grimm Hansjorg
Muhlfeld Horst
Stini Harald
Dudash Diana
Firma Carl Freundenberg
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