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POLYSTYRENE RECYCLING UTILIZING ESTER OF FATTY ACIDS

IP Title

FATTY ACID ESTERS TO DISSOLVE POLYSTYRENE FOR PRODUCTION OF COMMODITY MATERIAL USEFUL FOR PRODUCTION OF POLYMERS

Detailed Technology Description

None

Supplementary Information

Patent Number: US6337413B1
Application Number: US2000668880A
Inventor: Kapila, Shubhen | Flanigan, Virgil J. | Maples, Michael F. | Mills, Michael W.
Priority Date: 25 Sep 2000
Priority Number: US6337413B1
Application Date: 25 Sep 2000
Publication Date: 8 Jan 2002
IPC Current: C08L002506 | C08L006700
US Class: 554163 | 25218213
Title: Fatty acid esters to dissolve polystyrene for production of commodity material useful for production of polymers
Usefulness: Fatty acid esters to dissolve polystyrene for production of commodity material useful for production of polymers
Summary: For solubilizing polystyrene constituents in fatty acid ester used in packaging, refrigerator doors, air conditioner cases, containers and molded household wares, boats and water coolers. Also used in variety of polymeric applications including forming low cost mixed polymers.
Novelty: Method for solubilizing polystyrene in fatty acid ester to form polystyrene fatty acid ester mixture, involves dissolving fatty acid ester at preset temperature with specific amount of polystyrene

Industry

Chemical/Material

Sub Category

Chemical/Material Application

Application Date

Sep 25, 2000

Application No.

6,337,413

Others

*Abstract

Abstract of US Patent 6,337,413 - Fatty acid esters to dissolve polystyrene for production of commodity material useful for production of polymers: The present invention relates to a method for solubilizing polystyrene in a fatty acid ester, whereby the resultant polystyrene fatty acid ester composition can be used in a variety of polymeric applications, including forming an improved polyester. The present invention also relates to the resultant polystyrene fatty acid ester composition.Non-confidential Abstract of Invention: We have discovered that various esters of biogenic oil fatty acids (i.e., methyl soyate, the methyl ester of soybean oil) can be a very strong solvent for polystyrene. This polystyrene is typically, but not limited to, packing material or insulating material. We have made solutions of methyl soyate containing 80% by weight of scrap polystyrene. These mixtures have then been polymerized to provide useful resins for composite materials, as well as coatings for explosives.

*IP Issue Date

Jan 8, 2002

*Principal Investigator

Name: Shubhender Kapila, Professor

Department:

Name: Virgil Flanigan, Prof Emeritus (deceased Jan 2016)

Department:

Name: Michael Maples

Department:

Name: MICHAEL MILLS

Department:

Country/Region

USA