Coated food-contacting containers

US10442572B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10442572-B2
Application numberUS-201414518198-A
CountryUS
Kind codeB2
Filing dateOct 20, 2014
Priority dateOct 20, 2014
Publication dateOct 15, 2019
Grant dateOct 15, 2019

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Containers comprising a food-contacting surface and a coating thereon are disclosed. The coating comprises a polymer derived from benzene dimethanol having segments of the following structure: where R 1 is phenylene and R 2 is a divalent organic group and n=5 to 50.

First claim

Opening claim text (preview).

The invention claimed is: 1. A coated metal container comprising a metal container having an interior surface, wherein at least a portion of the interior surface is coated with a composition comprising a polymer derived from benzene dimethanol having segments of the following structure: where R 1 is phenylene and R 2 is a divalent organic group and n=5 to 50, wherein the polymer is grafted to a water-dispersible (meth)acrylic acid functional monomer. 2. The coated metal container of claim 1 wherein R 2 comprises at least one of an arylene group containing from 6 to 12 carbon atoms or a saturated (cyclo)aliphatic group containing from 4 to 12 carbon atoms. 3. The coated metal container of claim 1 in which R 2 comprises linear alkylene. 4. The coated metal container of claim 1 in which the polymer has a number average molecular weight of 2,000 to 25,000 g/mol. 5. The coated metal container of claim 1 in which the composition is substantially free of bisphenol A and derivatives or residues thereof.

Assignees

Inventors

Classifications

  • grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

  • Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups · CPC title

  • C08G63/19Primary

    Hydroxy compounds containing aromatic rings · CPC title

  • on to polycarbonates or saturated polyesters {(C08F283/004 takes precedence)} · CPC title

  • B65D25/14Primary

    Linings or internal coatings (of containers made by folding or erecting blanks made of paper B65D5/56 {; linings for domestic water storage heaters F24H1/183}) · CPC title

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What does patent US10442572B2 cover?
Containers comprising a food-contacting surface and a coating thereon are disclosed. The coating comprises a polymer derived from benzene dimethanol having segments of the following structure: where R 1 is phenylene and R 2 is a divalent organic group and n=5 to 50.
Who is the assignee on this patent?
Ppg Ind Ohio Inc
What technology area does this patent fall under?
Primary CPC classification C08G63/19. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Oct 15 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).