Thermoformed poly (methyl methacrylate) sheets with protective film and adhesion layer

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United States of America Patent

PATENT NO 5275866
SERIAL NO

07931451

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Abstract

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A process for thermoforming a sheet of poly(methyl methacrylate) which has a reduced viscosity of at least 1.5, protected on at least one of its faces, by a film, in intimate contact with it. The film is an ethylene polymer which has undergone a corona discharge treatment. The ethylene polymer film is coated with a layer of acrylic adhesive after the ethylene polymer film has undergone the corona treatment.

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Patent Owner(s)

Patent OwnerAddress
ATOCHEM PUTEAUXHAUTS-DE-SEINE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barbin, Jean Y Etrepagny, FR 2 2
Leca, Jean P Mantes la Jolie, FR 2 2

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