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.:
Date of Patent:
May. 29, 2007
Filed:
Mar. 07, 2002
Atsuhiro Takata, Toyonaka, JP;
Ryuma Kuroda, Ibaraki, JP;
Satoshi Hanada, Ibaraki, JP;
Takeshi Yamada, Takatsuki, JP;
Atsuhiro Takata, Toyonaka, JP;
Ryuma Kuroda, Ibaraki, JP;
Satoshi Hanada, Ibaraki, JP;
Takeshi Yamada, Takatsuki, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A film-like materials of resin manufacturing method for producing a film-like material made of a resin by rolling a thermoplastic resin material containing a thermoplastic resin using a molding apparatus comprising first rotation molding members composed of a pair of rollers, wherein the method is characterized in that the rotation molding is carried out under the conditions satisfying the following inequalities of the line contact pressure P (kN/m) applied to the thermoplastic resin, the peripheral velocity R (m/sec) of the rollers of the first rotation molding members, and the thickness H (m) of the film-like material made of the resin after rolling. (formula 1) 3×9.8≦P (formula 2) 3×9.8×10≦P/(R/H)≦2×9.8×10, wherein the reference character P denotes the line contact pressure P (kN/m), the reference character R denotes the peripheral velocity (m/sec) of the rotation molding members, and the reference character H denotes the thickness (m) of the film-like material made of the resin after rolling.