Heat-resistant liner-provided vessel closure and process for pre

Details Heat-resistant liner-provided vessel closure and process for pre Heat-resistant liner-provided vessel closure and process for pre

1991-02-11

1991-10-29

Marcus, Stephen

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220359, 525 98, B65D 4502

Patent

active

050608185

ABSTRACT:
Disclosed is a vessel closure having a liner formed from a composition comprising (i) a hydrogenated styrene/butadiene block copolymer having a melt index smaller than 0.1 g/10 min as measured at a temperature of 200.degree. C. under a load of 5 kg, (ii) liquid paraffin and (iii) a propylene resin.
In this liner, the compression permanent strain and permanent elongation under high temperature conditions are extremely small, and therefore, even if a divergence is produced between the liner and the mouth portion of a vessel by thermal deformation or thermal shrinkage, a good sealing property can be maintained.

REFERENCES:
patent: 3950280 (1976-04-01), Singleton
patent: 4332846 (1982-06-01), Fischer
patent: 4428494 (1984-01-01), Hirota
patent: 4560727 (1985-12-01), Crossan
patent: 4775711 (1988-10-01), Kawamura
patent: 4785043 (1988-11-01), Kawai et al.
patent: 4810541 (1989-03-01), Newman
patent: 4822653 (1989-04-01), Kauffman
patent: 4828136 (1989-05-01), Kawahara
patent: 4977003 (1990-12-01), Brown et al.

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