Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1997-12-12
1999-11-30
Watkins, III, William P.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
428131, 4283044, 4283122, 4283133, 428338, 428323, 623 16, 623901, 424423, 264 49, 264317, 264DIG44, 264220, 264222, 264223, 264224, 264225, 264227, 264226, 264219, B29C 3354, A61F 228
Patent
active
059937165
ABSTRACT:
The invention relates to a material of a three-dimensional framework of supporting, trabecular structures encompassing cavities which are connected with one another and which can be predeterminedly adjusted. The material is obtainable by forming the framework around the shaped bodies serving as space retainers for the cavities and subsequently removing the shaped bodies. The material according to the invention can be used for example as a implant or as a filter.
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