Hollow body suitable for receiving diffusible substances, coated

Details Hollow body suitable for receiving diffusible substances, coated Hollow body suitable for receiving diffusible substances, coated

1981-03-11

1982-12-21

Dixon, Jr., William R.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

51317, 51319, 156153, 156668, 427307, 427322, 428 36, 428142, 4284248, B24B 100, B32B 3100, B05D 300

Patent

active

043649807

ABSTRACT:
The invention comprises a hollow body, suitable for receiving diffusible substances and made of plastics material coated with varnish resins, the external surface of which has a roughness, measured in profile according to DIN 4768, Part I, of Rz=from 2 to 150 .mu.m and R.sub.max =from 5 to 250 .mu.m on which a coating, positively linked with that surface to provide a seal against diffusion of liquids and gases present in the body, consisting of a chemically crosslinked polyurethane resin is located in a layer thickness of from 10 to 800 .mu.m.

REFERENCES:
patent: 3023126 (1962-02-01), Underwood et al.
patent: 3198692 (1965-08-01), Bridgeford
patent: 3306791 (1967-02-01), Nye
patent: 3440082 (1969-04-01), Kube
patent: 3616957 (1971-10-01), Walles
patent: 3726825 (1973-04-01), Woodward et al.
patent: 3740258 (1973-06-01), Walles
patent: 4021405 (1977-05-01), Tucker et al.
"Zorll Chemische und mechanische Haftverbindungen bei Polymeren".
VII, Kunstoff-Handbuch, "Polyurethane".
"Adhasion", 1979, pp. 18-22, Einige Erkenntnisse auf dem Gebiet . . . .

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