Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1973-12-20
1976-05-25
Turer, Richard B.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 25E, 260878R, 260881, 260884, 260885, C08J 900
Patent
active
039591891
ABSTRACT:
A process for producing 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 85.degree.C, adding to the suspension 30 to 100% by weight based on the weight of the particles of a styrene monomer and a catalyst for polymerizing the monomer, and polymerizing the monomer. Embodiments additionally include adding a cross-linking agent for the polyethylene prior to the polymerization to the suspension and crosslinking and polymerizing the polyethylene and the styrene, respectively, and impregnating a blowing agent in the polyethylene resin particles containing the polymerized styrene resin or in the cross-linked polyethylene resin particles containing the polymerized styrene resin to form foamable polyethylene resin particles.
REFERENCES:
patent: 3413244 (1968-11-01), Laudler et al.
patent: 3542702 (1970-11-01), Okoda et al.
patent: 3714083 (1973-01-01), Nakayama et al.
patent: 3743611 (1973-07-01), Muroi et al.
Sekisui Kaseihin Kabushiki Kaisha
Turer Richard B.
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