Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1979-05-07
1981-05-19
Silverman, Stanley S.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428165, 428171, 428218, 428524, 428526, B32B 330, B32B 514
Patent
active
042685656
ABSTRACT:
A cellulosic fiber containing board is molded at a temperature of at least 525.degree. F. to provide a relatively high density skin on at least one surface.
A fibrous composition, including cellulosic fibers, is consolidated to form a blank having a density of less than 35 pounds/cubic foot. The blank is then cut to a shape larger in at least two of its three dimensions than corresponding dimensions of a mold cavity when said mold is in a closed position.
Urea is then included in at least a surface layer of fibers of the blank in an amount of at least 5% based on the dry weight of the fibers contacted with urea, and thereafter the cut blank is molded to form a contoured product having a skin on at least one surface thereof, the skin defined by a thickness of material on said surface of said product having a density greater than the material on which the skin is formed.
REFERENCES:
patent: 1663503 (1928-03-01), Mason
patent: 1663504 (1928-02-01), Mason
patent: 1663506 (1928-03-01), Mason
patent: 1812969 (1931-07-01), Mason
patent: 1812970 (1931-07-01), Mason
patent: 1953832 (1934-04-01), Sandell
patent: 2716617 (1955-08-01), Austin, Jr. et al.
patent: 2872337 (1959-02-01), Heritage et al.
patent: 3062699 (1962-11-01), Raphael et al.
patent: 3285801 (1966-11-01), Sarjeant
patent: 3539386 (1970-11-01), Janssen
patent: 3562376 (1971-02-01), Hameister et al.
patent: 3673021 (1972-06-01), Joa
patent: 3699203 (1972-10-01), Oshima
patent: 3758357 (1973-09-01), Akerson et al.
patent: 3762974 (1973-10-01), Wirz
patent: 3870665 (1975-03-01), Dierk et al.
patent: 3927235 (1975-12-01), Chow
patent: 3959005 (1976-05-01), Bruun et al.
patent: 4007076 (1977-02-01), Clarke et al.
patent: 4012561 (1977-03-01), Doughty
patent: 4175150 (1979-11-01), Luck et al.
Clarke John T.
Hoffman Michael R.
Luck Allan J.
Masonite Corporation
Silverman Stanley S.
LandOfFree
Post-press molding of man-made boards to produce contoured furni does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Post-press molding of man-made boards to produce contoured furni, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Post-press molding of man-made boards to produce contoured furni will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1490150