Chemically embossed metallocene polyethylene foam

Details Chemically embossed metallocene polyethylene foam Chemically embossed metallocene polyethylene foam

1998-12-07

2000-10-31

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 88, 521 89, 521 90, 521 92, 521 93, 521 94, 521 97, C08J 910

Patent

active

061403792

ABSTRACT:
A textured metallocene polyethylene foam sheet suitable for use in a floor covering is made using a highly co-activated azodicarbonamide package which blows the metallocene polyethylene effectively. The preferred co-activators are zinc oxide and urea. The textured surface of metallocene polyethylene foam is formed by a chemical embossing process which utilizes a liquid triazole having an alkyl moiety as a foam-expansion inhibitor. The triazole is dissolved in a non-polar solvent to form the foam inhibitor. The preferred inhibitor is a hydrocarbon which may be halogenated.

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