Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1990-12-13
1993-03-30
Heitbrink, Tim
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264510, B29C 4516
Patent
active
051981734
ABSTRACT:
A novel procedure for molding composite structures is disclosed wherein the finished part exhibits a net shape geometry requiring minimal further machining and displaying enhanced consolidation and surface characteristics. A composite preform having a hollow core portion containing a polymer insert is introduced into a mold cavity. One end of the preform core is sealed and the preform together with the polymer insert is heated to melt the composite matrix and core polymer. Pressure is applied to the core at the other end of the part, causing radial expansion of the part against the molded cavity and consolidation of the composite into a finished part. A product finished part is also disclosed and is useful as a component of an orthopedic implant.
REFERENCES:
patent: 4013748 (1977-03-01), Valyi
patent: 4164794 (1979-08-01), Spector et al.
patent: 4268468 (1981-05-01), Esper et al.
patent: 4351069 (1982-09-01), Ballintyn et al.
patent: 4606395 (1986-08-01), Ban
patent: 4615855 (1986-10-01), Orlowski et al.
patent: 4634563 (1987-01-01), Hancock
patent: 4637909 (1987-01-01), Lucca
patent: 4662887 (1987-05-01), Turner et al.
patent: 4681718 (1987-07-01), Oldham
patent: 4750905 (1988-06-01), Koeneman et al.
patent: 4769197 (1988-09-01), Kromrey
patent: 4770835 (1988-09-01), Kromrey
patent: 4837251 (1989-06-01), Okey et al.
patent: 4842787 (1989-06-01), Chess et al.
patent: 4892552 (1990-01-01), Ainsworth et al.
Egerton et al., Proceedings of the 33rd International SAMPE Symposium, 1988, pp. 35-46.
Terzian ALbert
Trentacosta Joseph D.
E. I. Du Pont de Nemours and Company
Hamby William H.
Heitbrink Tim
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