Gasket composition for crown caps

Details Gasket composition for crown caps Gasket composition for crown caps

1996-10-28

1999-09-21

Nold, Charles

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

220288, 220304, 220378, 215256, B65D 4142

Patent

active

059551631

ABSTRACT:
A gasket for a crown cap to be used on a carbonated beverage, especially a twist-off crown or for a bottle which is to be pasteurized, is formed of a thermoplastic material, which is preferably free of polyvinyl chloride, and which contains a hydrogenated copolymer of styrene and a conjugated diene, or a functionalized derivative thereof. The material is resistant to heat, and provides a gasket with advantageous sealing properties.

REFERENCES:
patent: 3779965 (1973-12-01), Lefforge et al.
patent: 4431111 (1984-02-01), Prohaska
patent: 4833206 (1989-05-01), Tajima
Derwent Abstract of JP 48014708; "Packing Material for Crown Caps".
Derwent Abstract of J04031254 Feb. 03, 1992; "Metal Cap Liner for Heat ... ".

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