Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1990-02-16
1990-11-06
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
264211, 264268, 264294, 264300, 524232, 524262, 524265, 524557, 524560, 524563, 524571, 524574, 524575, 524577, 524583, 524585, 525106, 525199, 525227, 525235, 525236, 525479, B29C 4316, B29C 4700
Patent
active
049684698
ABSTRACT:
Molded articles such as gaskets for container caps are made from a thermoplastic composition at high speed, for instance above 100 per minute, by continuously cutting a continuous supply of molten thermoplastic composition into molten pieces and transferring the molten pieces to a molding position at which they are molded into the gaskets or other desired articles, and the composition includes a melt-release material that continuously replenishes a melt-release layer on the surfaces by which the molten composition is cut and transferred to the molding position.
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Baker William L.
Hubbard J. Dana
Tentoni Leo B.
Thurlow Jeffery
W. R. Grace & Co.,-Conn.
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