Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1988-09-21
1990-02-13
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264311, 264DIG6, B29C 4104, B29C 6720
Patent
active
049004883
ABSTRACT:
A spincasting technique for forming a syntactic insulation layer around a pipeline includes rotating a drum while or after injecting components for forming syntactic insulation material into said drum. In this manner a syntactic material is formed in which larger, low density, microspheres are biased towards the inner surface of the insulation layer.
REFERENCES:
patent: 3764247 (1973-10-01), Garrett et al.
patent: 3856721 (1974-12-01), Fritschel
patent: 3996654 (1976-12-01), Johnson
patent: 4637907 (1987-01-01), Hegel et al.
Collins Michael H.
Lyle Alan R.
Shell Oil Company
Tentoni Leo B.
Thurlow Jeffery
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