Laminates with adhesive layer of white-pigmented, melt-stable et

Details Laminates with adhesive layer of white-pigmented, melt-stable et Laminates with adhesive layer of white-pigmented, melt-stable et

1990-10-29

1992-02-18

Schofer, Joseph L.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428343, 428344, 428346, 428355, B32B 516

Patent

active

050893327

ABSTRACT:
A laminated structure comprising at least two nonadhesive layers and at least one white-pigmented adhesive layer, wherein the white-pigmented adhesive layer is made of a composition stabilized against thermal crosslinking and consequent reduction of its melt index, consisting essentially of a uniform dispersion of alumina-coated titanium dioxide pigment in a blend of a matrix polymer which is a dipolymer of ethylene with an ethylenically unsaturated carboxylic acid or a terpolymer of ethylene with an ethylenically unsaturated carboxylic acid and with another ethylenically unsaturated comonomer, or with carbon dioxide or sulfur dioxide, with a stabilizing polymer which is a high melt index copolymer of ethylene with acrylic or methacrylic acid. Such laminated structures include, for example, toothpaste tubes, condiment pouches, traffic road signs, and roadway lane marking tapes.

REFERENCES:
patent: 3520861 (1970-07-01), Thomson et al.
patent: 4870128 (1989-09-01), Couturier et al.
patent: 4992486 (1991-02-01), Feinberg

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