Scored fiberboard having improved moldability

Details Scored fiberboard having improved moldability Scored fiberboard having improved moldability

1992-02-21

1994-04-26

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428134, 428136, 428155, 428171, 428174, 428221, 428225, B32B 300

Patent

active

053065395

ABSTRACT:
A fiberboard, preferably made by consolidating a water-felted mat without added binder and being suitable for pressure-molding into a hardboard door facing having a high degree of fidelity to the contours of the die set, is incised on both the major face and the obverse face with incisions having a depth of from about 10% to about one third the thickness of the board. The incisions are aligned on lines that are preferably arranged at right angles across the face of the board. The lines are preferably spaced a maximum of about 0.5 inches apart, and the incisions on each line are discontinuous, preferably separated by a maximum of about 0.5 inches.

REFERENCES:
patent: 992026 (1909-07-01), Nishimura
patent: 2800423 (1957-07-01), de Swart
patent: 3314339 (1967-04-01), Guffy et al.
patent: 3481813 (1969-12-01), Wiggers
patent: 3731600 (1973-05-01), Earp
patent: 3983827 (1976-10-01), Meadors
patent: 4342610 (1982-08-01), Ray, Jr.
patent: 4610900 (1986-09-01), Nishibori

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