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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9138933 B1

PDFFull Text
Date of Patent:
Sep. 22, 2015

Filed:

Jan. 22, 2010

Process and apparatus for producing crystalline resin film or sheet

Applicants:

Junichiro Washiyama, Kawasaki, JP;

Hideharu Kimura, Kawasaki, JP;

Koji Yamada, Kawasaki, JP;

Takeshi Nakajima, Kawasaki, JP;

Akihiro Otsubo, Kawasaki, JP;

Masamichi Hikosaka, Higashihiroshima, JP;

Kiyoka Okada, Higashihiroshima, JP;

Kaori Watanabe, Higashihiroshima, JP;

Inventors:

Junichiro Washiyama, Kawasaki, JP;

Hideharu Kimura, Kawasaki, JP;

Koji Yamada, Kawasaki, JP;

Takeshi Nakajima, Kawasaki, JP;

Akihiro Otsubo, Kawasaki, JP;

Masamichi Hikosaka, Higashihiroshima, JP;

Kiyoka Okada, Higashihiroshima, JP;

Kaori Watanabe, Higashihiroshima, JP;

Assignee:

SunAllomer Ltd., Tokyo, JP;

Attorneys:

Robert E. Krebs

Nixon Peabody LLP

Primary Examiner:

Galen Hauth

Int. Cl.
CPC ...
B29C 47/00 (2006.01); B29C 47/36 (2006.01); B29C 33/58 (2006.01); B29C 43/22 (2006.01); B29C 47/32 (2006.01); B29C 47/92 (2006.01); C08J 5/18 (2006.01); B29C 47/38 (2006.01); B29C 47/34 (2006.01); B29C 47/88 (2006.01); B29K 23/00 (2006.01); B29K 25/00 (2006.01); B29K 27/06 (2006.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
B29C 47/364 (2013.01); B29C 33/58 (2013.01); B29C 43/222 (2013.01); B29C 47/004 (2013.01); B29C 47/0021 (2013.01); B29C 47/32 (2013.01); B29C 47/38 (2013.01); B29C 47/8845 (2013.01); B29C 47/92 (2013.01); C08J 5/18 (2013.01); B29C 47/0057 (2013.01); B29C 47/34 (2013.01); B29C 47/367 (2013.01); B29C 47/884 (2013.01); B29C 2947/926 (2013.01); B29C 2947/92019 (2013.01); B29C 2947/9238 (2013.01); B29C 2947/9258 (2013.01); B29C 2947/9259 (2013.01); B29C 2947/92095 (2013.01); B29C 2947/92152 (2013.01); B29C 2947/92209 (2013.01); B29C 2947/92647 (2013.01); B29C 2947/92704 (2013.01); B29C 2947/92885 (2013.01); B29C 2947/92923 (2013.01); B29K 2023/00 (2013.01); B29K 2023/04 (2013.01); B29K 2023/10 (2013.01); B29K 2025/04 (2013.01); B29K 2027/06 (2013.01); B29K 2995/0041 (2013.01); B29L 2007/008 (2013.01); C08J 2323/12 (2013.01);
Abstract

A process and apparatus for manufacturing a crystalline resin film or sheet. This manufacturing apparatus includes: an extruder that melts crystalline resin while supplying it; a gear pump that is provided on the downstream side of the extruder; a die which is provided on the downstream side of the gear pump, and which has a slit-shaped aperture; a cooling apparatus which cools film-shaped or sheet-shaped crystalline resin (A) discharged in a melted state from the die to a temperature which is not less than the crystallization temperature but not more than the melting point; and a pair of pinch rolls that press-roll between them the film-shaped or sheet-shaped crystalline resin (B) which has passed through the cooling apparatus (), wherein the pair of guide rolls are positioned such that the thickness of the film-shaped or sheet-shaped crystalline resin (B) which has passed through the cooling apparatus is between 1.3 and 8.0 times the thickness of the film or sheet (C, D) after it has been press-rolled.

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