Manufacture of hollow articles

Details Manufacture of hollow articles Manufacture of hollow articles

1987-10-29

1989-03-21

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

156149, 1562735, 264103, 264236, 264257, 264347, 4251744, B29C 3508

Patent

active

048141194

ABSTRACT:
The invention relates to a process for the manufacture of hollow articles, in which a photocurable resin is introduced into a mold which transmits light, the mold is irradiated until the resin has polymerized to the desired depth, the remaining resin is allowed to run out and the partially polymerized layer is then fully cured. The hollow articles may be used in particular as expendable cores in the manufacture of plastics containers by the winding process.

REFERENCES:
patent: 2524862 (1950-10-01), White
patent: 2786007 (1957-03-01), Chew
patent: 2808623 (1957-10-01), Foster
patent: 2941934 (1960-06-01), Anspon et al.
patent: 2963747 (1960-12-01), Brown
patent: 3246054 (1966-04-01), Guenther et al.
patent: 3317646 (1967-05-01), Dames, Jr.
patent: 4265723 (1981-05-01), Hesse et al.
patent: 4425287 (1984-01-01), Hesse et al.
patent: 4575330 (1986-03-01), Hull

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