Primed, abrasion resistant thermoplastic articles and method for

Details Primed, abrasion resistant thermoplastic articles and method for Primed, abrasion resistant thermoplastic articles and method for

1994-02-22

1995-04-25

Nakarani, D. S.

Stock material or miscellaneous articles

Composite

Of polycarbonate

427379, 427387, 4273935, 4274121, 428451, 428520, 428522, 4289088, B32B 2730

Patent

active

054097789

ABSTRACT:
Improved adhesion of abrasion-resistant top coats such as silicone hardcoats to thermoplastic (preferably polycarbonate) surfaces is obtained by employing as a primer a mixture of poly(methyl methacrylate) with a copolymer of methyl methacrylate and at least one other alkyl acrylate, said copolymer having a glass transition temperature up to about 75.degree. C. The improvement in adhesion is particularly noticeable for dip-coated and flow-coated substrates having top coats of variable thickness.

REFERENCES:
patent: 4382109 (1983-05-01), Olson et al.
patent: 5041313 (1991-08-01), Patel
patent: 5045396 (1991-09-01), Lin et al.

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