Polymer foams

Patent metadata

Field	Value
Publication number	US-2016237239-A1
Application number	US-201514622964-A
Country	US
Kind code	A1
Filing date	Feb 16, 2015
Priority date	Feb 16, 2015
Publication date	Aug 18, 2016
Grant date	—

Abstract

A polymeric composition may include a polyolefin or styrenic polymer, a metallic acrylate salt, and an acid neutralizer.

First claim

What is claimed is:

1 . A polymeric composition comprising:
a polypropylene or styrenic polymer; a metallic acrylate salt; and one or more acid neutralizers, wherein the one or more acid neutralizers are present in an amount greater than or equal to a weight percentage of the metallic acrylate salt and in an amount sufficient to reduce an amount of acrylic acid by at least 75% as compared to the polymeric composition without the one or more acid neutralizers.

2 . (canceled)

3 . The polymeric composition of claim 1 , wherein the metallic acrylate salt is present in the polymeric composition in an amount of between 0.01 and 6 wt %.

4 . The polymeric composition of claim 3 , wherein the metallic acrylate salt is present in the polymeric composition in an amount of less than 5 wt %.

5 . The polymeric composition of claim 3 , wherein the metallic acrylate salt is metallic diacrylate.

6 . The polymeric composition of claim 3 , wherein the metallic acrylate salt is zinc diacrylate, zinc dimethylacrylate, copper diacrylate, copper dimethylacrylate. zinc di-vinylacetate, zinc di-ethylfumarate, copper di-vinylacetate, copper diethylefumarate, aluminum triacrylate, aluminum trimethylacrylate, aluminum tri-vinylacetate, aluminum tri-ethylfumarate, zirconium tetraacrylate, zirconium tetramethylacrylate, zirconium tetra-vinylacetate, zirconium tetra-ethyl fumarate, sodium acrylate, sodium methacrylate, silver methacrylate, or combinations thereof.

7 . The polymeric composition of claim 1 , wherein the acid neutralizer is a metal oxide, metal carbonate, hydroxide, metal stearate, natural hydrotalcite, synthetic hydrotalcite, or a combination thereof.

8 . The polymeric composition of claim 7 , wherein the acid neutralizer is zinc oxide, magnesium oxide, titanium dioxide, sodium carbonate, sodium bicarbonate, calcium carbonate, magnesium carbonate, sodium hydroxide, potassium hydroxide, zinc stearate, calcium stearate, a magnesium hydrotalcite, a zinc hydrotalcite, or a combination thereof.

9 . The polymeric composition of claim 8 , wherein the acid neutralizer is a combination of zinc oxide and sodium carbonate.

10 . The polymeric composition of claim 1 , wherein the polymeric composition comprises a 3:2 weight percentage ratio of each neutralizer to the metallic acrylate salt.

11 . The polymeric composition of claim 10 , wherein the polymeric composition comprises 3 weight % acid neutralizer.

12 . A foam comprising
more than 50 weight % of a polypropylene or styrenic polymer; at least 1% metallic acrylate salt; and at least 1% one or more acid neutralizers, wherein the one or more acid neutralizers are present in an amount greater than or equal to a weight percentage of the metallic acrylate salt and in an amount sufficient to reduce an amount of acrylic acid by at least 75% as compound to the polymeric composition without the one or more acid neutralizers.

13 . (canceled)

14 . The foam of claim 12 , wherein the one or more acid neutralizers are present in an amount sufficient to reduce an amount of acrylic acid by at least 95% as compared to the polymeric composition without the one or more acid neutralizer.

15 . A process comprising:
supplying a polymeric composition comprising a metallic acrylate salt, one or more acid neutralizers, and more than 50 weight % of a polypropylene or styrenic polymer resin, wherein the one or more acid neutralizers are present in an amount greater than or equal to a weight percentage of the metallic acrylate salt and in an amount sufficient to reduce an amount of acrylic acid by at least 75% as compared to the polymeric composition without the one or more acid neutralizers; and mixing the polymeric composition and a foaming agent to form a polymer foam.

16 . The process of claim 15 , wherein the foaming agent is pentane, isopentane, carbon dioxide, nitrogen, water vapor, propane, n-butane, isobutane, n-pentane, 2,3-dimethylpropane, 1-pentene, cyclopentene, n-hexane, 2-methylpentane, 3-methylpentane, 2,3-dimethylbutane, 1-hexene, cyclohexane, n-heptane, 2-methylhexane, 2,2-dimethylpentane, 2,3-dimethylpentane, or combinations thereof.

17 . The process of claim 15 , wherein the metallic acrylate salt is zinc diacrylate, zinc dimethylacrylate, copper diacrylate, copper dimethylacrylate. zinc di-vinylacetate, zinc di-ethylfumarate, copper di-vinylacetate, copper diethylefumarate, aluminum triacrylate, aluminum trimethylacrylate, aluminum tri-vinylacetate, aluminum tri-ethylfumarate, zirconium tetraacrylate, zirconium tetramethylacrylate, zirconium tetra-vinylacetate, zirconium tetra-ethyl fumarate, sodium acrylate, sodium methacrylate, silver methacrylate, or combinations thereof.

18 . The process of claim 15 , wherein the acid neutralizer is a metal oxide, metal carbonate, hydroxide, metal stearate, natural hydrotalcite, synthetic hydrotalcite, or a combination thereof.

19 . The process of claim 18 , wherein the acid neutralizer is zinc oxide, magnesium oxide, titanium dioxide, sodium carbonate, sodium bicarbonate, calcium carbonate, magnesium carbonate, sodium hydroxide, potassium hydroxide, zinc stearate, calcium stearate, a magnesium hydrotalcite, a zinc hydrotalcite, or a combination thereof.

20 . The process of claim 15 , wherein the one or more acid neutralizers are present in an amount sufficient to reduce an amount of acrylic acid by at least 95% as compared to the polymeric composition without the one or more acid neutralizer.

Assignees

• Fina Technology

Inventors

• Cortes Leonardo
• Li Fengkui
• Tippet Jon
• Blackmon Kenneth Paul
• Mayhall Marc
• Daniels Leland
• Ashbaugh John

Classifications

• C08K3/26 Primary

  Carbonates; Bicarbonates · CPC title

• C08K5/098 Primary

  Metal salts of carboxylic acids · CPC title

• C08K3/22

  of metals · CPC title

• C08J2203/10

  Water or water-releasing compounds · CPC title

• C08K2003/262

  Alkali metal carbonates · CPC title