Waste pipe system comprising plastic pipe parts made of thermopl

Details Waste pipe system comprising plastic pipe parts made of thermopl Waste pipe system comprising plastic pipe parts made of thermopl

1988-12-09

1990-09-18

Seidleck, James

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138155, 138174, 428 369, 428219, F16L 922

Patent

active

049577930

ABSTRACT:
A waste pipe system of an injection moulded or extruded pipe part of thermoplastic material with soundproofing properties having a weight per unit area of at least 8 kg/m.sup.2. The weight per unit area is adjusted by incorporating a filler in the plastic, preferably barium sulphate is used as such a filler. The density of the plastic pipe part is comprised between 1.8 and 2.7, preferably between 1.8 and 2.0 g/cm.sup.3.
Suitable thermoplastic materials are PVC, polyolefins and ABS (acrylonitrile-butadiene-styrene) copolymer, particularly PVC or polypropylene.
The plastic pipe part may also be a socket or a double sided socket.

REFERENCES:
patent: 4385136 (1983-05-01), Ancker et al.
patent: 4403007 (1983-09-01), Coughlin
patent: 4407987 (1983-10-01), Crocker et al.

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