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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 9126358 B1

PDFFull Text
Date of Patent:
Sep. 08, 2015

Filed:

Oct. 16, 2014

Method of improving the appearance of injection molding and foaming product

Applicant:

Yanfeng Automotive Trim Systems Co., Ltd., Shanghai, CN;

Inventors:

Weiyi Wang, Shanghai, CN;

Yiping Ma, Shanghai, CN;

Zifeng Chen, Shanghai, CN;

Assignee:

Yanfeng Automotive Trim Systems Co., Ltd., Shanghai, CN;

Attorney:

Dickinson Wright PLLC

Primary Examiner:

Stella Yi

Int. Cl.
CPC ...
B29C 33/48 (2006.01); B29C 44/10 (2006.01); B29C 44/02 (2006.01); B29C 44/34 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01); B29K 105/04 (2006.01); B29K 105/16 (2006.01);
U.S. Cl.
CPC ...
B29C 44/105 (2013.01); B29C 44/027 (2013.01); B29C 44/3403 (2013.01); B29K 2023/00 (2013.01); B29K 2105/0088 (2013.01); B29K 2105/04 (2013.01); B29K 2105/043 (2013.01); B29K 2105/16 (2013.01);
Abstract

A method of improving the appearance of foaming injection molding product includes closing the moving mold and the fixed mold and setting a clamping force on the closed mold, wherein a mold cavity is formed between the moving mold and the fixed mold. The method proceeds by inflating the mold cavity with high pressure and high temperature gas until the air pressure in the mold cavity reaches 2-25 MPa and the temperature of the high pressure and high temperature gas is between 60-200° C., then injecting molten resin that contains foaming agent into the mold cavity while continuously inflating high pressure and high temperature gas. After injection completed, stopping inflating high pressure and high temperature gas and simultaneously releasing pressure, wherein the step of releasing pressure includes the step of opening the mold.

Find Patent Forward Citations

Wang, Weiyi. (2015). Method of improving the appearance of injection molding and foaming product (U.S. Patent No. 9126358). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9126358

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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