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Dip, spray, and flow coating process for forming coated articles

a coating process and coating technology, applied in the direction of liquid surface applicators, coatings, transportation and packaging, etc., can solve the problems of surface defects of finished articles repairing effect, and achieve good gas-barrier characteristics

Inactive Publication Date: 2008-02-07
ADVANCED PLASTICS TECH LUXEMBOURG SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The coated articles exhibit significantly reduced gas permeability, resistance to blushing and whitening in water or high humidity, and extended shelf life for carbonated beverages, with improved surface tension and cosmetic appeal.

Problems solved by technology

Furthermore, in preferred processes, the drying process of articles has a repairing effect on surface defects of the finished article.

Method used

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  • Dip, spray, and flow coating process for forming coated articles
  • Dip, spray, and flow coating process for forming coated articles
  • Dip, spray, and flow coating process for forming coated articles

Examples

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Embodiment Construction

[0041] Methods and apparatus for coating articles comprising one or more layers are described herein. These layers may comprise thermoplastic materials with good gas-barrier characteristics as well as layers or additives that provide UV protection, scuff resistance, blush resistance, chemical resistance, and / or active properties for O2 and / or CO2 scavenging.

[0042] As presently contemplated, one embodiment of a coated article is a preform of the type used for beverage containers. Alternatively, embodiments of the coated articles of the present invention could take the form of jars, tubes, trays, bottles for holding liquid foods, medical products, or other products sensitive to gas exposure. However, for the sake of simplicity, these embodiments will be described herein primarily as articles or preforms.

[0043] Furthermore, the articles described herein may be described specifically in relation to a particular substrate, polyethylene terephthalate (PET), but preferred methods are app...

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Abstract

This invention relates to methods and apparatus for making coated articles with one or more layers by dip, spray or flow coating. In one aspect, this invention relates to an apparatus and method for making coated containers, preferably comprising polyethylene terephthalate, from coated preforms. In preferred embodiments, the apparatus and method permit the coated container or preform to be made in an energy-efficient manner that reduces the danger of coating damage and thus increases the efficacy of the final container.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. patent application Ser. No. 10 / 614,731 filed Jul. 3, 2003, currently pending, which is a continuation of PCT / US03 / 22333, filed Jul. 3, 2003, and which claims priority to provisional application Ser. No. 60 / 394,092 filed Jul. 3, 2002, Ser. No. 60 / 422,251 filed Oct. 28, 2002, and Ser. No. 60 / 441,718 filed Jan. 23, 2003. All of these prior applications are hereby expressly incorporated by reference in their entireties.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention relates to methods and apparatus for making coated articles with one or more layers by dip, spray or flow coating. In one aspect, this invention relates to an apparatus and method for making coated containers, preferably comprising polyethylene terephthalate, from coated preforms. [0004] 2. Description of the Related Art [0005] Preforms are the products from which containers are made by blow molding. U...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B05D1/36B05D7/00B32B1/00B05C9/14B05D1/18B05D7/24C08J7/043C08J7/046C08J7/048
CPCB05D1/18B05D7/544B05D7/546Y10T428/1352C08J7/04C08J2433/04Y10S118/04B29C2049/026C08J7/048C08J7/043C08J7/046B29C2949/3074B05D7/00
Inventor HUTCHINSON, GERALD A.LEE, ROBERT A.
Owner ADVANCED PLASTICS TECH LUXEMBOURG SA
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