Laminates containing coextruded scrap

Details Laminates containing coextruded scrap Laminates containing coextruded scrap

1988-02-24

1989-10-31

Swisher, Nancy A. B.

Stock material or miscellaneous articles

Composite

Of polycarbonate

428419, 4284735, 4284749, 428515, 4284758, 4289033, 428 357, B65D 2300, B32D 2736

Patent

active

048776823

ABSTRACT:
A continuous plastic laminate having improved stiffness at use temperature, comprising at least three melt coextruded sheets, each comprising a thermoplastic polymer or polymer blend, the outside sheets having a higher stiffness at use temperature than at least one inside sheet.

REFERENCES:
patent: 3723582 (1973-03-01), Winstead
patent: 3997677 (1976-12-01), Hirsch et al.
patent: 4234663 (1980-11-01), Catte et al.
patent: 4287147 (1981-09-01), Hungerford
patent: 4359506 (1982-11-01), Wiggins et al.
patent: 4402889 (1983-09-01), Bonis
patent: 4410602 (1985-10-01), Komoda et al.
patent: 4576842 (1986-03-01), Hartsing et al.
patent: 4647509 (1987-03-01), Wallace et al.
patent: 4652325 (1987-03-01), Benge et al.
patent: 4977153 (1976-08-01), Schrenk

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