Method for manufacture of waterproof fibrous plate

Details Method for manufacture of waterproof fibrous plate Method for manufacture of waterproof fibrous plate

1984-03-29

1986-05-06

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Utilizing diverse solid particles

162171, 264125, 264129, 264DIG32, B29C 6702

Patent

active

045870705

ABSTRACT:
This invention provides a method for the manufacture of a fibrous plate rich in water resistance, which comprises the steps of uniformly mixing and dispersing fibrous raw material and finely divided bituminous substance in water, molding the resultant aqueous dispersion in the shape of a plate, and heating the plate with a hot press thereby melting the bituminous substance contained in the fibrous material and converting the plate into a fibrous plate having the bituminous substance uniformly dispersed therein. The fibrous plate obtained by this method excels in water resistance, weatherability, and thermal insulation and passes the standard specification concerning joint plates for use in concrete structures.

REFERENCES:
patent: 1438966 (1922-12-01), Perry
patent: 1498401 (1924-06-01), Perry
patent: 3271240 (1966-09-01), Kari et al.
patent: 3668064 (1972-06-01), Kucera

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