Barrier layer composition for polyolefin bodies

Details Barrier layer composition for polyolefin bodies Barrier layer composition for polyolefin bodies

1997-07-14

1999-08-03

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

428 357, 428 366, 428413, 428447, 428451, 428480, 428518, 428520, 525100, 525102, 525103, 525207, 524114, 524262, 524588, B29D 2200, B32B 2738, B32B 904, C08F 800

Patent

active

059323043

ABSTRACT:
The present invention refers to a barrier layer composition which is to be applied to at least one surface of a polyolefin body, in particular a polyolefin hollow body, wherein the composition contains: a) 40-70% by weight of one or more epoxide-containing metal oxide sols; b) 25-55% by weight of a binding agent polymer consisting of a terpolymer of maleic acid-maleic anhydride-vinyl monomers and/or a copolymer of maleic acid-vinyl monomers having a composition by mole of 50-75% of a vinyl monomer, 5-50% of maleic acid, and 0-20% of maleic anhydride; and c) 0.1-5% by weight of a catalyst on the basis of one or more tertiary amines.
The hollow bodies coated with the barrier layer can be used particularly as storage containers for organic substances, in particular for organic solvents, fuels, mineral oils, pesticides, and other substances, for example liquids, the diffusion of which is to be inhibited or at least essentially reduced.

REFERENCES:
patent: Re32272 (1986-10-01), Funaki et al.
patent: 4522966 (1985-06-01), Funaki et al.
patent: 4594379 (1986-06-01), Funaki et al.
patent: 4642266 (1987-02-01), Funaki et al.
patent: 5206295 (1993-04-01), Harper et al.

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