Compositions – Preservative agents – Anti-corrosion
Patent
1996-10-29
1997-09-16
Foelak, Morton
Compositions
Preservative agents
Anti-corrosion
521 79, 521 97, 521142, 521143, 521144, 521910, 264DIG5, C08J 914
Patent
active
056677286
ABSTRACT:
An expandable thermoplastic composition is disclosed for extrusion foaming wherein the composition comprises a polyethylene resin and a blowing agent comprising ethane present in an amount of at least about 40 percent or more by weight based upon the total weight of the blowing agent and a different alkane selected from the group consisting of C.sub.1, C.sub.2, C.sub.3, C.sub.4, C.sub.5, and C.sub.6 alkanes and mixtures thereof, wherein the minimum percentage of ethane increases above 40 percent as the arithmetic mean carbon number of the different alkane increases from 3 to 5. A process for extrusion foaming of the composition is also disclosed.
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Foelak Morton
Sealed Air Corporation
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