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:
Aug. 12, 2025
Filed:
Nov. 03, 2023
Nissei Plastic Industrial Co., Ltd., Nagano-ken, JP;
Makoto Kozuka, Hanishina-gun, JP;
NISSEI PLASTIC INDUSTRIAL CO., LTD., Nagano-Ken, JP;
Abstract
For each of different resins R, a zero shear viscosity ηo of each resin R is obtained by using a conversion function expression whose parameters are a melt flow rate (MFR) and a set temperature of a heating cylinder and is registered. Also, a purge resin required amount Wu corresponding to a viscosity difference ηd between the zero shear viscosity ηof of a former resin Rf and the zero shear viscosity ηos of a succeeding resin Rs is registered. When resin switching is performed, the zero shear viscosity ηof of the former resin Rf and the zero shear viscosity ηos of the succeeding resin Rs are obtained by inputting the MFR of the former resin Rf and the MFR of the succeeding resin Rs to a molding machine controller, the viscosity difference ηd between the zero shear viscosity ηof of the former resin Rf and the zero shear viscosity ηos of the succeeding resin Rs is obtained, an amount of a purge resin required for resin switching is obtained as a purge resin required amount Wu, and at least the obtained purge resin required amount Wu is displayed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile