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
1978-08-28
1981-05-12
Pavelko, Thomas P.
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
264257, 264308, 264333, 264DIG47, 428255, B28B 2300
Patent
active
042671361
ABSTRACT:
A continuous process for manufacturing composite articles, such as thin hydraulically bound boards, which are reinforced with separate layers of a stretched, fibrillated, extended plastics net reinforcing material is disclosed. An aqueous suspension of cement or other material is applied onto and into the plastics network, dewatered, taken up and rolled into a composite cylinder until the desired thickness is reached. The cylinder is then cut axially, given the desired shape and cured.
REFERENCES:
patent: 1353225 (1920-09-01), Donoghue
patent: 2295420 (1942-09-01), Moore
patent: 3833438 (1974-09-01), Kaneko
Pavelko Thomas P.
Stamicarbon B.V.
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