Process for production of a continuous plastic sheet by casting

Details Process for production of a continuous plastic sheet by casting Process for production of a continuous plastic sheet by casting

1991-09-23

1992-06-02

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264216, B29D 701

Patent

active

051184532

ABSTRACT:
A process of production of a continuous plastic sheet (2) includes the forming of at least one layer cast in the liquid state of this plastic material, or a reaction mixture of reactive components, on a mobile support of glass plates (1) placed edge to edge and carried by a conveyor, followed by the setting of the layer formed on the surface of the glass plates and pulling off the set sheet. Strips (3) of flexible material are inserted between the adjacent glass plates. The adjacent edges of the glass plates are covered, before the casting is performed, by a ribbon (4) of a material nonadherent to the glass, which overlaps the section of the inserted strip or strips. After having been positioned on the glass plates, the ribbon is made temporarily adherent to the latter upstream from the casting in the liquid state by electrostatically charging with opposite charges the glass plates and the ribbon.

REFERENCES:
patent: 3274302 (1966-09-01), Anderson et al.
patent: 4017575 (1977-04-01), Heyer
patent: 4041120 (1977-08-01), Oshima et al.
patent: 4047917 (1977-09-01), Heymes et al.
patent: 4136214 (1979-01-01), Bourelier et al.
patent: 4235655 (1980-11-01), DeRoeck et al.
patent: 4309368 (1982-01-01), Groves
patent: 4310294 (1982-01-01), DeGeeste et al.
patent: 4749586 (1988-06-01), Bravet et al.

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