Process for the production of plates made of transparent plastic material with non-transparent overinjected parts
AssigneeINGLASS S.p.A.
InventorsAfro ROSSANESE, Maurizio BAZZO
Life of this patent
Estimating the term…
Abstract
Described herein is a process for the production of plates made of transparent plastic material with non-transparent overmoulded parts by means of a first direct injection and subsequent compression for the formation of the transparent plate, and a second injection for overmoulding said parts on the transparent plate, covering the indicators or witness marks of the first injection. Each injection can be in spots controlled in sequence, and the second injection can be followed by a respective step of post-compression.
Claims3
1-9. (canceled)
A pane comprising:
- a shaped plastic part which is transparent and has at least one sprue mark located on an optical surface of the shaped plastic part and occuring as a result of the use of a direct injection-moulding process during production of the shaped plastic part;
- and
- a covering material covering the at least one sprue mark, the covering material having a lower transparency than the shaped plastic part.
A process for producing a transparent sheet-like shaped plastic part comprising:
- injection-moulding the shaped plastic part by a direct injection-moulding process, wherein at least one sprue mark located on an optical surface of the shaped plastic part is formed;
- and
- covering the sprue mark with a covering material of lower transparency than the shaped plastic part.
Dependencies are inferred from the claim text.