Shaping of syntactic foam

Details Shaping of syntactic foam Shaping of syntactic foam

1989-07-12

1990-04-17

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283139, 4283144, 4283186, B32B 326

Patent

active

049179454

ABSTRACT:
A method of forming a shaped article from a stock of preformed, thermoplastic, syntactic foam material of hollow microspheres in a thermoplastic polymer matrix, comprising heating the preformed syntactic foam to a temperature above the softening point of thermoplastic polymer matrix and applying differential pressure over at least one surface of the foam material through the medium of a plastically deformable diaphragm member to cause the foamed material to conform to a desired shape. Shaped articles of syntactic foam material, optionally having a surface coating of unfoamed, preferably fibre reinforced thermoplastics materials are provided in a more versatile and convenient manner than curing or sintering syntactic foam material in a mould.

REFERENCES:
patent: 3524794 (1970-08-01), Jones et al.
patent: 3676033 (1972-07-01), Buonaiuto
patent: 3954926 (1976-05-01), Pahl et al.
patent: 4250136 (1981-02-01), Rex
patent: 4559262 (1985-12-01), Cogswell et al.
patent: 4560523 (1985-12-01), Plumley et al.
patent: 4576776 (1986-03-01), Anderson
patent: 4608220 (1986-08-01), Caldwell et al.

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