Closures for liquid product containers

Details Closures for liquid product containers Closures for liquid product containers

1977-04-14

1980-02-12

Kittle, John E.

Stock material or miscellaneous articles

Decorative article

Constructed from filamentary or flat sheet material

215362, 215355, 220307, 264 455, 264 54, 264DIG14, 264DIG83, 426133, 426397, 428158, 521 51, 521 89, 521149, A23L 334

Patent

active

041884574

ABSTRACT:
A bung for closing a wine bottle in the manner of a cork is formed in a conventional injection-moulding machine from ethylene-vinyl acetate copolymer (EVA) with the addition of sodium metabisulphite and sodium bicarbonate. The sodium metabisulphite, which is in stoichiometric excess in relation to the sodium bicarbonate, decomposes to liberate sulphur dioxide. The sodium bicarbonate decomposes to liberate water and carbon dioxide. The bung as moulded accordingly has a foamed core with a liquid-impervious skin. It contains sulphur dioxide, and water enabling the sulphur dioxide to act as an oxygen scavenger when the bung is in use in a wine bottle. The bung therefore provides the bottle with a long shelf life, with no noticeable tainting of the wine.

REFERENCES:
patent: 2138712 (1938-11-01), Saffert
patent: 2268160 (1941-12-01), Miles
patent: 2478879 (1949-08-01), Ten Broeck
patent: 2771205 (1956-11-01), Zepelovitch
patent: 3268636 (1966-08-01), Angell
patent: 3954685 (1976-05-01), Woo

Affiliated with

Also associated with

Rating

Closures for liquid product containers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Closures for liquid product containers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closures for liquid product containers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1855465