Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1986-06-04
1987-12-22
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264 405, 264 51, 26433119, 264DIG83, 425156, 425160, 425543, 425590, 425817R, B29C 4567, B29C 6722, C08G 1808
Patent
active
047145790
ABSTRACT:
Plastics-forming materials are shaped in a mold tool sealed by an associated closing unit. Lifting elements the stroke of which can be limited and controlled are associated with the mold tool. Shaping is accomplished by filling the mold cavity with reaction mixture while the mold tool halves are not completely sealed, sealing the filled mold and keeping the mold sealed until the article is completely cured. This method and apparatus are particularly useful in the production of dimensionally accurate geometrically complicated shaped articles.
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Boden Heinrich
Schneider Walter
Anderson Philip
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Whalen Lyndanne M.
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