Sealed containers and sealing compositions for them

Details Sealed containers and sealing compositions for them Sealed containers and sealing compositions for them

1991-04-03

1992-04-21

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524111, 524394, C08K 515, C08K 504, C08K 509

Patent

active

051068869

ABSTRACT:
A sealing composition for a container closure comprises a polymeric matrix material and is modified by the inclusion therein of an oxygen scavenger. The composition can be in fluid or meltable form ready for application to a closure or it can be present as a deposit on the closure, for instance a gasket around the closure. Preferably the scavenging properties of the deposit are activated by pasteurizing or sterilizing the deposit when sealing a container with the closure. The invention is of particular value when the closure is a metal cap for a beer bottle.

REFERENCES:
patent: 3586514 (1971-06-01), Vijibrief
patent: 4188457 (1980-02-01), Throp
patent: 4279350 (1981-07-01), King
patent: 4536409 (1985-08-01), Farrell et al.
patent: 4702966 (1987-10-01), Farrell et al.

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