Contact material

Details Contact material Contact material

1989-03-03

1992-04-14

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

210150, 210505, 428131, 428192, 428284, 428286, 428294, 428297, 428298, B32B 310

Patent

active

051047160

ABSTRACT:
A plastic contact material is disclosed for the treatment of a liquid, comprising a plurality of strips made of a plastic material and wherein each of the strips has at least one tension element. A process is also disclosed for manufacturing a biological water treatment contact material made of a plurality of strips of a plastics material, which process comprises providing at least one strand at an elevated temperature, and applying the strand to a strip of plastic material while the strand is still at said elevated temperature.

REFERENCES:
patent: 2749965 (1956-06-01), Manning
patent: 4756942 (1988-07-01), Aichele

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