Modified thermoplastic and a method for the manufacture of the t

Details Modified thermoplastic and a method for the manufacture of the t Modified thermoplastic and a method for the manufacture of the t

1989-05-22

1990-08-14

Lilling, Herbert J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

220339, 220DIG14, 220DIG16, 26432818, 523216, 523220, 524427, 524449, 524451, 524494, 524496, 524585, B65D 4736, C08J 320, C08K 300, B29C 4500

Patent

active

049486659

ABSTRACT:
The prerequisites for the injection moulding from thermoplastic material of container lids with a tear-up opening arrangement which is to function well on opening as well as on reclosing are improved through the use of a modified thermoplastic containing inert filler in a quantity of 10-15% of the weight of the mixture. Such a modified thermoplastic is manufactured by heating a thermoplastic, known in itself, e.g. polyethylene, to melting temperature with simultaneous admixture of the filler. The mixture is mechanically processed for a good distribution of the filler in the melted plastic mass which thereafter is cooled to form the modified thermoplastics.

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Chemical Abstract, vol. 100, Abstract No. 8095p, (1984).

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