Process for preparing foamed and crosslinked shaped articles hav

Details Process for preparing foamed and crosslinked shaped articles hav Process for preparing foamed and crosslinked shaped articles hav

1977-09-07

1981-02-24

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 93, 521 95, 521 96, 521 97, 521143, 521154, 521909, 525288, 525342, C08J 910

Patent

active

042529069

ABSTRACT:
A process for preparing a foamed and crosslinked polyethylene resin shaped article having improved heat-sealability, which comprises melt-kneading (a) a silane-modified polyethylene resin, (b) a heat-decomposable blowing agent, (c) a silanol condensation catalyst, and (d) an organic peroxide at a temperature lower than the decomposition temperature of the heat-decomposable blowing agent (b), shaping the mixture, and heating the resulting foamable and crosslinkable shaped articles to the decomposition temperature of the heat-decomposable blowing agent or to a higher temperature thereby to foam and crosslink it; and a foamable and crosslinkable polyethylene resin composition used therefor.

REFERENCES:
patent: 3017371 (1962-01-01), Hohenberg et al.
patent: 3608006 (1971-09-01), Hosoda et al.
patent: 3651183 (1972-03-01), Hosoda et al.
patent: 4160072 (1979-07-01), Shinkai et al.
"Plastics Progress 1955", p. 69, Edited by Philip Morgan-British Plastics Convention 1955.
"Celogen-A2" by R. R. Barnhart, Compounding Research Report No. 38, pp. 1-11.

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