Methods of preparing compositions for containers and other articles and methods of using same

Patent metadata

Field	Value
Publication number	US-10113027-B2
Application number	US-201615290765-A
Country	US
Kind code	B2
Filing date	Oct 11, 2016
Priority date	Apr 14, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

This invention provides a polymer, which is preferably a polyether polymer. The polymer may be uses in coating compositions. Containers and other articles comprising the polymer and methods of making such containers and other articles are also provided. The invention further provides compositions including the polymer (e.g., powder coatings), which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.

First claim

What is claimed is:

1. A method of making a high molecular weight polyether polymer, comprising the step of reacting ingredients including:
(i) a nitrogen-containing catalyst having at least one bridgehead Nitrogen atom;
(ii) a diepoxide compound; and
(iii) a hindered polyhydric phenol compound having an atom or group with an atomic weight of at least 15 Daltons in an ortho position relative to an oxygen atom on a phenol ring;

wherein the polyether polymer: (a) includes at least 25% by weight of aryl or heteroaryl groups and (b) is substantially free of bound bisphenol A, bisphenol F, bisphenol S, polyhydric phenols having estrogenic activity greater than or equal to that of bisphenol S, and epoxides thereof.

2. The method of claim 1 , wherein the phenol compound has the below Formula (III):

wherein:
each R 1 is independently an atom or group having an atomic weight of at least 15 Daltons and at least one R 1 or R 2 group is in an ortho position relative to the oxygen atom on the phenol ring;
v is independently 0 to 4; w is 4;
R 2 , if present, is a divalent group;
n is 0 or 1; with the proviso that if n is 0, the phenylene groups depicted in Formula (III) can optionally join to form a fused ring system in which case w is 3 and each v is independently 0 to 3;
t is 0 or 1; and
two or more R 1 and/or R 2 groups can join to form one or more cyclic groups.

3. The method of claim 2 , wherein the catalyst has a pka of at least 9.

4. The method of claim 2 , wherein the catalyst comprises a polycyclic amidine base catalysts or an azabicycloalkane or mixtures thereof.

5. The method of claim 4 , wherein the catalyst is selected from the group consisting of 1,5,7-Triazabicyclo(4.4.0)dec-5-ene; 7-Methyl-1,5,7-triazabicyclo(4.4.0)dec-5-ene; 1,8-diazabicyclo[5.4.0]undec-7-ene; 1,5-diazabicyclo[4.3.0]non-5-ene; 1-Azabicyclo[2.2.2]octane; and similar compounds.

6. The method of claim 2 , wherein the catalyst is present in an amount of from 0.01 to 1% by weight, based on the total polymer weight.

7. The method of claim 2 , wherein the reaction is carried out at a temperature between 120 and 200° C. for less than 24 hours.

8. The method of claim 2 , wherein the polyether polymer includes at least 45% by weight of phenylene groups and has a glass transition temperature of at least 60° C.

9. The method of claim 2 , wherein the phenol compound comprises a phenol of Formula (III), and wherein t and n are each 1 and R 2 is an organic group having 8 or more carbon atoms.

10. The method of claim 2 , wherein the phenol compound comprises a phenol of Formula (III), and wherein t and n are each 1 and each depicted hydroxyl group in Formula (III) is located at a para position relative to R 2 .

11. The method of claim 2 , wherein the phenol compound comprises a phenol of Formula (III), and wherein the phenol of Formula (III) has an atomic weight of less than 600 Daltons and constitutes at least 30% by weight of the polyether polymer.

12. The method of claim 2 , wherein the diepoxide compound is non-genotoxic and is derived from a dihydric phenol that that exhibits a log Relative Proliferative Effect value in the MCF-7 cell proliferation assay of less than −3.

13. The method of claim 2 wherein each phenylene group depicted in Formula (III) includes R 1 groups attached to the phenol ring at both ortho positions relative to the depicted oxygen atom on the phenol ring.

14. The method of claim 1 wherein the hindered polyhydric phenol compound comprises 4,4′-methylenebis(2,6-dimethylphenol).

Assignees

• Swimc Llc

Inventors

• Niederst Jeffrey
• O'Brien Robert M
• Romagnoli Kevin
• Von Maier Mark S
• Deng Lan
• Evans Richard H
• Santure David J
• Prouvost Benoit

Classifications

• C08L71/00

  Compositions of polyethers obtained by reactions forming an ether link in the main chain (of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06); Compositions of derivatives of such polymers · CPC title

• B65D1/12

  Cans, casks, barrels, or drums · CPC title

• C09D171/00

  Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain (based on polyacetals C09D159/00; based on epoxy resins C09D163/00; based on polythioether-ethers C09D181/02; based on polyethersulfones C09D181/06); Coating compositions based on derivatives of such polymers · 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

• C08G2650/56

  Polyhydroxyethers, e.g. phenoxy resins · CPC title