Shaped structural members having improved lightfastness and weat

Details Shaped structural members having improved lightfastness and weat Shaped structural members having improved lightfastness and weat

1977-11-11

1980-02-19

Willis, Jr., P. E.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

523091, 428215, 428336, 428519, 428522, B32B 1708

Patent

active

041895207

ABSTRACT:
A process for the production of shaped structural members made of extrudable thermoplastic synthetic resin suitable for use in the construction industry especially for window frames including sashes and blinds and sliding doors and the like, having a surface coating with improved lightfastness and weatherproofness, wherein a thin cover layer of a polymeric material such as a polymethyl methacrylate is provided at least on the side of the shaped member to be exposed to outside ambient conditions.

REFERENCES:
patent: 3100917 (1963-08-01), Wagner
patent: 3194725 (1965-07-01), Pounds
patent: 3220062 (1965-11-01), Hermann
patent: 3419461 (1968-12-01), Gebhard et al.
patent: 3447997 (1969-06-01), Kamal
patent: 3589976 (1971-06-01), Erb
patent: 3661685 (1972-05-01), Osteen
patent: 3804705 (1974-04-01), Kishikawa et al.
patent: 3859754 (1975-01-01), Budich et al.
patent: 3868789 (1975-03-01), Gates
patent: 4040219 (1977-08-01), Budich

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