Plastic and nonmetallic article shaping or treating: processes – Removal of liquid component or carrier through porous mold... – By direct application of vacuum or pneumatic pressure
Patent
1984-03-23
1986-07-01
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Removal of liquid component or carrier through porous mold...
By direct application of vacuum or pneumatic pressure
44 1E, 44 10B, 44 15D, 264518, 264109, 264115, 264120, 264122, 264123, 264126, 264236, 264324, 524 13, 524 14, 527103, 527105, B29C 4128
Patent
active
045979286
ABSTRACT:
Disclosed in accordance with the invention is a method for fiberboard manufacture comprising the steps of steaming and grinding woodchips to obtain a wood pulp, using said wood pulp to prepare a slurry of wood pulp in water, mixing said slurry with a binder, a cure catalyst for the binder, a water-repellent additive, peat, and carbamide to obtain a mixture, casting said mixture and dewatering said mixture to obtain a mat, and compacting said mat to obtain fiberboard which is subjected to heat treatment, in which method the peat used has a moisture content of between 25 and 70 percent and the peat content in said mixture is between 2.5 and 50 percent by mass, with the ratio of absolutely dry peat to said binder equal to between 1.0-7:1.0, respectively, while the carbamide content in said mixture is between 0.2 and 2.0 percent by mass, with the ratio of said carbamide to said binder equal to between 0.02-1:1, respectively.
REFERENCES:
patent: 768599 (1904-08-01), Goldman
patent: 2442897 (1948-06-01), Loughborough
patent: 3174940 (1965-03-01), Lacoste
patent: 3231526 (1966-01-01), Wilson
patent: 3293200 (1966-12-01), MacGregor
patent: 3306864 (1967-02-01), Lang et al.
patent: 3990180 (1976-11-01), Bunting
patent: 4003866 (1977-01-01), Paturle
patent: 4073753 (1978-02-01), Hauge
patent: 4229183 (1980-10-01), Eneroth
patent: 4303561 (1981-12-01), Piesch et al.
Burov Anatoly V.
Grudinka Ekaterina I.
Mirkamilov Shavkat M.
Mirkamilov Tolkun M.
Nesterchuk Gennady T.
Leningradsky Tekhnologichesky Institute Tselljulozno-Bumazhnoi
Proizvodstvennoe Obiedinenie "Litbumprom"
Thurlow Jeffery
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