Cladding and method of making same

Details Cladding and method of making same Cladding and method of making same

1979-10-22

1981-11-10

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

156 622, 156228, 156327, 156403, 264112, 264319, 428326, 428332, 428528, 428921, B32B 516, B32B 3120

Patent

active

042998778

ABSTRACT:
A method of manufacturing cladding which comprises the steps of making cellulosic material in the form of particles in which about 20 to 30% of the particles comprise fine particles and the remaining percentage comprise coarse particles which have a thickness of 0.35 to 0.7 mm. A bonding resin is then added to the cellulosic material and the cellulosic material is then formed into a mat. The mat is then passed to a hot press and the press is operated in a manner to obtain rapid closure from the initial contacting of the press platens with the mat until the cladding material so formed is of required thickness. The coarse particles form a core between two layers of fine particles and the core has a void content of between 10 and 30% preferably about 25%.

REFERENCES:
patent: 2686143 (1954-08-01), Fahrni
patent: 2851730 (1958-09-01), Wilhelmi et al.
patent: 3880975 (1975-04-01), Lundmark
patent: 3988183 (1976-10-01), Senn
patent: 4163820 (1979-08-01), Corver et al.

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