Polyethers derived from benzene dimethanol

Patent metadata

Field	Value
Publication number	US-2016107818-A1
Application number	US-201414518223-A
Country	US
Kind code	A1
Filing date	Oct 20, 2014
Priority date	Oct 20, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

Containers comprising a food-contacting surface and a coating thereon are disclosed. The coating comprises polyethers derived from benzene dimethanol.

First claim

1 . A container comprising a food-contacting surface wherein at least a portion of the food-contacting surface is coated with a composition comprising a polyether composition derived from benzene dimethanol containing at least one of the following segments:

where R 1 is phenylene; R 2 is a saturated aliphatic radical, R 3 is a (cyclo)aliphatic radical, an arylene radical or an alkarylene radical, m is 0 to 12, n is 1 to 12 and p is less than 5, or

where R 1 is phenylene, R 2 is a saturated aliphatic radical, R 3 is a (cyclo)aliphatic radical, an arylene radical or an alkarylene radical, t is less than 5, u is 0 to 12 and v is 1 to 12.

2 . The container of claim 1 in which (A) is terminated with epoxy groups or phenolic hydroxyl groups.

3 . The container of claim 1 in which (C) is terminated with epoxy groups or phenolic hydroxyl groups.

4 . The container of claim 1 where Ar is phenylene.

5 . The container of claim 1 where R 2 is a linear alkylene radical containing from 4 to 12 carbon atoms.

6 . The container of claim 1 where p is 1 to 2.

7 . The container of claim 1 where R 3 is

8 . The container of claim 1 where R 3 is phenylene.

9 . The container of claim 8 where the phenylene radical is derived from resorcinol, hydroquinone and/or catechol.

10 . The container of claim 1 in which the polyether composition is aqueous based and in which the polyether (A) and/or (C) is grafted to a (meth)acrylic polymer.

Assignees

• Ppg Ind Ohio Inc

Inventors

• Kaleem Kareem
• Moussa Youssef

Classifications

• C08G59/066 Primary

  with chain extension or advancing agents · CPC title

• B65D81/34 Primary

  for packaging foodstuffs {or other articles} intended to be cooked or heated within the package · CPC title

• C09D163/00 Primary

  Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins · CPC title

• C08G65/34

  from hydroxy compounds or their metallic derivatives {(C08G65/26 takes precedence)} · CPC title

• B65D25/14

  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