Invention Grant
US07645416B2 Thermoforming process for producing class “A” finish, high gloss automotive exterior parts
有权
热成型工艺生产“A”级面漆，高光泽汽车外饰件
- Patent Title: Thermoforming process for producing class “A” finish, high gloss automotive exterior parts
- Patent Title (中): 热成型工艺生产“A”级面漆，高光泽汽车外饰件
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Application No.: US11466112Application Date: 2006-08-22
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Publication No.: US07645416B2Publication Date: 2010-01-12
- Inventor: Charles K. Buehler , Charles C. Mentzer , Michael P. Balogh , Catherine A. Ostrander , Steven J. Schmidt
- Applicant: Charles K. Buehler , Charles C. Mentzer , Michael P. Balogh , Catherine A. Ostrander , Steven J. Schmidt
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Current Assignee Address: US MI Detroit
- Main IPC: B29C51/00
- IPC: B29C51/00
Abstract:
A thermoforming methodology for laminated thermoplastic sheets which preserves the class “A” finish and high gloss thereof. In a thermoforming process including heating followed by vacuum and opposing air pressure application, and then followed by application of chilled compressed air, control of spherulite formation using any of: addition of a nucleating agent to the paint film, using the chilled compressed air at a temperature of substantially about 32° F., heating to no more than about 311° F., selecting a paint film having a high melting point temperature, and selecting a paint film that is non-crystalline.
Public/Granted literature
- US20060284350A1 Thermoforming Process for Producing Class "A" Finish, High Gloss Automotive Exterior Parts Public/Granted day:2006-12-21
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