Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1979-12-07
1982-07-20
Bell, James J.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
156177, 156178, 15624412, 15624419, 15624425, 156251, 4273982, 428255, 264149, 264174, 264DIG81, 493 56, 493190, 493194, B29C 1700
Patent
active
043405584
ABSTRACT:
Process for forming a scrim-reinforced film wherein a molten, film-forming plastic, such as polyethylene, in a high state of fluidity is fed onto an unsupported scrim and solidified by cooling to produce a scrim at least substantially completely enclosed and surrounded by the plastic. The film, thus produced, can be formed into a high strength bag container by a folding and cutting operation utilizing hot knife means capable of fusing and thus sealing the plastic. In a preferred embodiment, the plastic is extruded onto the scrim.
REFERENCES:
patent: 3117055 (1964-01-01), Guandique et al.
patent: 3222237 (1965-12-01), McKelvy
patent: 3321357 (1967-05-01), Kennedy
patent: 3331725 (1967-07-01), Mercer
patent: 3411181 (1968-11-01), Cawley
patent: 3444025 (1969-05-01), Hillas
patent: 3649405 (1972-03-01), Osborn
patent: 3713875 (1973-01-01), Beyer et al.
patent: 3893642 (1975-07-01), Vlaenderen
Bell James J.
Colgate-Palmolive Company
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