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:
Apr. 27, 2021
Filed:
Nov. 30, 2017
The Procter & Gamble Company, Cincinnati, OH (US);
Guy Hubert Stephane Sylvain Culeron, Beijing, CN;
Shuo Song, Beijing, CN;
Ping Wang, Beijing, CN;
Liang Yang, Beijing, CN;
Chun-chuan Liang, Shanghai, CN;
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
A method of blow molding an article having at least one layer of thermoplastic material. The method comprises the steps of heating a mold having an inner surface with two or more areas of different surface textures to a first temperature of greater than 55° C. and subsequently feeding a parison into the mold. The parison is then blown against the inner surface of the mold to form an article. The temperature of the mold is subsequently lowered to a second temperature of between 20° C. to about 55° C. and the temperature cycle time (t) of the mold is less than 250 seconds. Using the two phase heating and cooling process in combination with a mold featuring different surface textures provides a finished article with different visual effects.