Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Shaping against interior of a forming surface by rotation of...
Patent
1990-11-20
2000-10-17
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Shaping against interior of a forming surface by rotation of...
2642092, 2642095, 264233, 2642358, 2642902, 264312, 26433112, 264564, 528183, 528337, B29C 5512, B29C 5528, C08G 7322, C08G 7532
Patent
active
061326682
ABSTRACT:
This invention relates in general to the formation of thick films having a biaxial molecular orientation. Such films are prepared in accordance with the present invention from rod-like extended chain aromatic-heterocyclic ordered polymers. Such films have high tensile strength, modulus, and environmental resistance characteristics. A preferred ordered polymer for use in the present invention is poly (para-phenylenebenzo bisthiazole), (PBT), a compound having the structure: ##STR1## The present invention is also directed to methods and apparatus suitable for producing biaxially oriented films, coatings, and like materials from ordered polymers, preferably PBT.
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Baars Dirk M.
Bretches Donald D.
Davis Robert B.
Harvey Andrew C.
Lusignea Richard W.
Buckley Linda M.
Conlin David G.
Foster-Miller Inc.
Tentoni Leo B.
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