Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1987-12-03
1988-07-05
Schofer, Joseph L.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
523091, B32B 300, E04C 100
Patent
active
047554142
ABSTRACT:
The invention relates to a vinyl halide polymer composition suitable for outdoor use in the sunlight. The change in color as measured by .DELTA.E in articles made from the polymeric composition is found to be substantially lower than other compositions. The lower .DELTA.E provides a measurement for improved weatherability of the compositions in such applications as housing siding, window profiles, shutters and roof vents.
REFERENCES:
patent: 3644246 (1972-02-01), Lozanou
patent: 4424292 (1984-01-01), Rabinovitch et al.
Lacatus Emilia E.
Rabinovitch Elvira B.
Summers James W.
Powell Joe A.
Sarofim N.
Schofer Joseph L.
The BF Goodrich Company
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