Paper making and fiber liberation – Processes and products – Plural fiber containing
Patent
1997-08-22
1998-09-01
Derrington, James
Paper making and fiber liberation
Processes and products
Plural fiber containing
162141, 162152, 162156, 1621681, 162169, 264 42, 264 454, 264 86, D21H 1336
Patent
active
058006761
ABSTRACT:
A method for manufacturing a mineral fiber panel which comprises uniformly dispersing in water 60 to 90% by weight of a mineral fiber, 2 to 19% by weight of an organic binder, 1 to 20% by weight of an inorganic microfiber, 0.5 to 3% by weight of a flocculant and 0.5 to 10% by weight of a thermally expansible resin fine particle which has a diameter after expansion of not less than 0.03 mm but less than 3.0 mm, the expansion degree of the above diameter being at least 3 times, and which has an expansion-starting temperature of 50.degree. to 105.degree. C., as the composition components, to prepare a slurry, and thereafter subjecting the slurry to wet forming and then to drying. The above production process enables the enhancement of productivity and the mineral fiber panel obtained by the above production process is light in weight and excellent in sound-absorbing qualities and fireproof properties.
REFERENCES:
patent: 3556934 (1971-01-01), Meyer
patent: 3941634 (1976-03-01), Nisser et al.
patent: 4062721 (1977-12-01), Guyer et al.
patent: 4126512 (1978-11-01), Hill
patent: 4836871 (1989-06-01), Kato
patent: 5047120 (1991-09-01), Izard et al.
Koike Kazuyoshi
Kojima Hidetoshi
Derrington James
Nitto Boseki Co. Ltd.
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