Patent · US Active

Coating compositions for containers and methods of coating

US7910170B2 · kind B2 · utility

30Cited by

27References

32Claims

0Family size

Assignee

Valspar Sourcing, Inc. · US

Inventors

Richard H. Evans · Wexford, US
Robert M. O'Brien · Waynesburg, US
Rachael Ann Spynda · Wexford, US

Key dates

Filing date	Oct 18, 2006
Grant date	Mar 22, 2011
Priority date	—
Expiry date	Jan 1, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/139
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

This invention provides a coating composition for use on a food-contact surface of a container (e.g., a food or beverage can) that includes a polymer having one or more segments of Formula I:—O—Ar—Rn—C(O)—O—R1—O—C(O)—Rn—Ar—O—wherein each Ar is independently a divalent aryl group (i.e., an arylene group) or heteroarylene group; R1 is a divalent organic group; each R is independently a divalent organic group; and n is 0 or 1. Containers comprising the polymer and methods of making such containers are also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.