Polymer foams

Patent metadata

Field	Value
Publication number	US-10745537-B2
Application number	US-201514622964-A
Country	US
Kind code	B2
Filing date	Feb 16, 2015
Priority date	Feb 16, 2015
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

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 consisting of:
more than 50 weight % of 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 wherein an amount of acrylic acid in the polymeric composition is between 75% and 95% less than a second polymeric composition consisting of:
more than 50 weight % of the polypropylene or styrenic polymer; and
the metallic acrylate salt.

2. 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 %.

3. The polymeric composition of claim 2 , wherein the metallic acrylate salt is present in the polymeric composition in an amount of less than 5 wt %.

4. The polymeric composition of claim 2 , wherein the metallic acrylate salt is metallic diacrylate.

5. The polymeric composition of claim 2 , 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.

6. 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.

7. The polymeric composition of claim 6 , 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.

8. The polymeric composition of claim 7 , wherein the acid neutralizer is a combination of zinc oxide and sodium carbonate.

9. 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.

10. The polymeric composition of claim 9 , wherein the polymeric composition comprises 3 weight % acid neutralizer.

11. A foam comprising:
a polymeric composition consisting of:
more than 50 weight % of a polypropylene or styrenic polymer;
at least 1% 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 wherein an amount of acrylic acid in the foam is between 75% and 95% less than a second foam comprising:
a polymeric composition consisting of:
more than 50 weight % of the polypropylene or styrenic polymer; and
at least 1% metallic acrylate salt.

12. A polymeric composition consisting of:
more than 50 weight % of a polypropylene or styrenic polymer;
a metallic acrylate salt; and
one or more acid neutralizers, wherein the acid neutralizer is a metal stearate, natural hydrotalcite, synthetic hydrotalcite, or a combination thereof, and 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, wherein an amount of acrylic acid in the polymeric composition is between 75% and 95% less than a second polymeric composition consisting of:
more than 50 weight % of a polypropylene or styrenic polymer; and
a metallic acrylate salt.

Assignees

• Fina Technology

Inventors

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

Classifications

• C08L25/06

  Polystyrene · CPC title

• C08L23/12

  Polypropene · CPC title

• C08K2003/262

  Alkali metal carbonates · CPC title

• C08K2003/2296

  of zinc · CPC title

• C08K5/098 Primary

  Metal salts of carboxylic acids · CPC title