Process for producing foamable polyethylene resin particles

Details Process for producing foamable polyethylene resin particles Process for producing foamable polyethylene resin particles

1978-02-08

1979-09-18

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 60, 521139, C08J 914

Patent

active

041683536

ABSTRACT:
A process for producing foamable polyethylene resin particles which comprises suspending in an aqueous medium polyethylene resin particles having an MI value of 0.3 to 10, a density of less than 0.93 g/cm.sup.3 and a softening point below 90.degree. C., adding to the suspension 30 to 300% by weight based on the weight of the particles of a styrene monomer and a catalyst for polymerizing the monomer, polymerizing the monomer, and impregnating a blowing agent in the polyethylene resin particles containing the polymerized styrene resin to form foamable polyethylene resin particles.

REFERENCES:
patent: 3413244 (1968-11-01), Landler et al.
patent: 3651183 (1972-03-01), Hosoda et al.
patent: 3959189 (1976-05-01), Kitamori

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