Solution casting apparatus and solution casting method

Details Solution casting apparatus and solution casting method Solution casting apparatus and solution casting method

2007-09-28

2009-10-06

Huson, Monica A (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

By casting liquids on a solid supporting or shaping surface

C264S212000

Reexamination Certificate

active

07597831

ABSTRACT:
A dope producing apparatus is provided with a first feed line for sending polymer solution from a fourth tank to a solution casting apparatus. The first feed line is provided with a first orifice for adding dilute liquid to the polymer solution; a first inline mixer for inline-mixing the polymer solution and the dilute liquid to produce a mixture; a second orifice for adding matting liquid to the mixture; and a second inline mixer for mixing the mixture and the matting liquid to produce a first dope.

REFERENCES:
patent: 5188789 (1993-02-01), Nishiura
patent: 2005/0212172 (2005-09-01), Sakamaki
patent: 2006/0076707 (2006-04-01), Sugiura
patent: 2003-236863 (2003-08-01), None

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