Injection-moulding tool for the production of information...

Details Injection-moulding tool for the production of information... Injection-moulding tool for the production of information...

2007-11-27

2007-11-27

Davis, Robert B. (Department: 1722)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

C264S106000, C264S328160, C425S552000, C425S810000

Reexamination Certificate

active

10935425

ABSTRACT:
An injection-moulding tool for the production of a mould in disc form, in particular in the form of information carriers such as CDs and/or DVDs, wherein the injection-moulding tool comprises a first and a second mirror block, wherein the first and second mirror blocks lie opposite each other and are movable in relation to each other for the opening and closing of the mould, and means for actively controlling the temperature of at least one of the first and second mirror blocks. A method for producing mouldings in disc form utilizing the injection-moulding tool is also disclosed.

REFERENCES:
patent: 1582704 (1926-04-01), Sylvester et al.
patent: 4260360 (1981-04-01), Holmes et al.
patent: 6464487 (2002-10-01), Gabriel
patent: 2002/0031570 (2002-03-01), Gabriel
patent: 0 864 411 (1998-09-01), None
patent: 0 899 075 (1999-03-01), None
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patent: 01 278322 (1989-11-01), None
patent: 8-281713 (1996-10-01), None
patent: 09 094858 (1997-04-01), None
patent: WO99/37471 (1999-07-01), None
English abstract for JP 1-216807, the reference dated Feb. 1988.
English abstract and computer translation for JP 8-281713, the reference dated Oct. 1996.

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