Shaping of syntactic foam

Details Shaping of syntactic foam Shaping of syntactic foam

1988-02-01

1989-10-24

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264313, 264314, 264316, 264321, 264322, 264DIG6, 425DIG14, 4283126, 4283133, B29C 5128, B29C 4706, B29C 6716

Patent

active

048760552

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), Jonnes et al.
patent: 3676033 (1972-07-01), Buonaiuto
patent: 3954926 (1976-05-01), Pahl et al.
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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