Container closures, sealed containers and sealing compositions f

Details Container closures, sealed containers and sealing compositions f Container closures, sealed containers and sealing compositions f

1994-08-05

1995-07-04

Seccuro, Jr., Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524505, 524524, C08L 906, C08L 3104, C08L 5302, C08L 908

Patent

active

054300983

ABSTRACT:
A sealing composition for a container closure comprises a polymeric matrix material and its oxygen permeability is reduced by incorporating ethylene vinyl alcohol polymer into the composition. 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.

REFERENCES:
patent: 3857754 (1974-12-01), Hirata et al.
patent: 3931449 (1976-01-01), Hirata et al.
patent: 4141936 (1979-02-01), Pritchett
patent: 4222926 (1980-09-01), Mizuno
patent: 4228250 (1980-10-01), Pritchett
patent: 4293473 (1981-10-01), Eastman
patent: 4349644 (1982-09-01), Iwanami et al.
patent: 4997880 (1991-03-01), Van Der Groep

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