Hybrid water dispersions, (poly)ethylene (meth)acrylic acid copolymer composite latex emulsions, hybrid (poly)ethylene (meth)acrylic acid organosilane composite latex emulsions, and coating compositions formed therefrom

Patent metadata

Field	Value
Publication number	US-9404006-B2
Application number	US-201414772801-A
Country	US
Kind code	B2
Filing date	Mar 12, 2014
Priority date	Mar 15, 2013
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

Hybrid water dispersions are disclosed which can be used in the formation of coating compositions having good blush resistance, abrasion resistance, blister resistance, hardness and scratch resistance, in some embodiments, the coating compositions are used to coat substrates such as cans and packaging materials for the storage of food and beverages. Hybrid water dispersion of the invention may be prepared by mixing a (poly) ethylene (meth) acrylic acid copolymer in water to form a mixture, and reacting the mixture with an organosilane compound.

First claim

What is claimed is:

1. An ethylene (meth)acrylic acid copolymer composite latex emulsion prepared by a method comprising:
a) mixing an ethylene (meth)acrylic acid copolymer and a neutralizer in water to form a mixture; and
b) mixing the mixture with an ethylenically unsaturated monomer component to form an ethylene (meth)acrylic acid copolymer composite latex emulsion.

2. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 , wherein the reaction mixture further comprises an organosilane compound.

3. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 2 , wherein the organosilane compound comprises a reactive organic group and a hydrolysable inorganic methoxysilyl group.

4. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 2 , wherein the organosilane compound comprises 3-methacryloxypropyltrimethoxysilane, 3-glycidyloxypropyltriethoxysilane, 3-glycidyloxypropyltrimethoxysilane, or a combination thereof.

5. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 , wherein the reaction mixture comprises a nanoclay.

6. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 , wherein the reaction mixture further comprises a crosslinker.

7. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 6 , wherein the crosslinker comprises a phenolic resin, urea-formaldehyde, phenol-formaldehyde, benzoguanamine formaldehyde, alkali metal hydroxides, Zinc/zirconium complexes and epoxy or a combination thereof.

8. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 , wherein the reaction mixture further comprises a neutralizer.

9. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 , wherein the reaction mixture further comprises a nanoclay.

10. The ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 , wherein the ethylenically unsaturated monomer component comprises tripropylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, ethyl glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, glycerol di(meth)acrylate, glycidyl methacrylate, 1,4-butanediol di(meth)acrylate, hydroxypropyl (meth)acrylate, (meth)acrylic acid, a vinyl monomer, an acrylic monomer, an allylic monomer, an acrylamide monomer, a vinyl ester, a vinyl halide, a vinyl aromatic hydrocarbon, a vinyl aliphatic hydrocarbon monomer a vinyl alkyl ether, an acrylic monomer, 1,3-butylene glycol (meth)acrylate, polyalkylene glycol di(meth)acrylate, diallyl phthalate, trimethylolpropane tri(meth)acrylate, divinylbenzene, divinyltoluene, trivinylbenzene, divinylnaphthalene, or a combination thereof.

11. A hybrid ethylene (meth)acrylic acid organosilane copolymer composite latex emulsion prepared by reacting the ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 with an organosilane compound.

12. A coating composition comprising the ethylene (meth)acrylic acid copolymer composite latex emulsion of claim 1 .

13. A coating composition comprising the hybrid ethylene (meth)acrylic acid organosilane copolymer composite latex emulsion of claim 11 .

14. A substrate coated with the coating composition of claim 1 .

15. A substrate coated with the coating composition of claim 11 .

Assignees

• Akzo Nobel Coatings Int Bv

Inventors

• Li Cathy

Classifications

• C08J3/03 Primary

  in aqueous media · CPC title

• C08J3/245

  Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking · CPC title

• C08F265/06

  Polymerisation of acrylate or methacrylate esters on to polymers thereof · CPC title

• C08F8/42

  Introducing metal atoms or metal-containing groups · CPC title

• C09D151/003

  grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C09D151/04, C09D151/06 take precedence) · CPC title