Production of grafted polyethylene from renewable materials, the obtained polyethylene and uses thereof

Patent metadata

Field	Value
Publication number	US-9045577-B2
Application number	US-200913055857-A
Country	US
Kind code	B2
Filing date	Jul 27, 2009
Priority date	Jul 29, 2008
Publication date	Jun 2, 2015
Grant date	Jun 2, 2015

Abstract

The invention relates to a method for production of grafted polyethylene comprising the following steps: a) fermentation of primary renewable material with optional purification to give at least one alcohol chosen from ethanol or a mixture of alcohols comprising ethanol; b) dehydration of the alcohol obtained to give in a first reactor at least one alkene selected from ethylene and mixtures of alkenes containing ethylene and optional purification of the alkene to give ethylene; c) polymerization, in a second reactor, of the ethylene to give polyethylene; d) isolation of the polyethylene obtained in step c); e) grafting the polyethylene with at least one grafting monomer selected from the unsaturated carboxylic acids or theifunctional derivatives thereof, the unsaturated dicarboxylic acids having 4-10 carbon atoms and the functional derivatives thereof being C 1 -C 8 alkyl esters or glycidyl ester derivatives of the unsaturated carboxylic acids and the metal salts of the unsaturated carboxylic acids. The invention further relates to the grafted polyethylene obtained by said method, the copolymers and compositions comprising said polyethylene and the use of said polyethylene.

First claim

What is claimed is:

1. A process for the manufacture of grafted polyethylene, comprising the following stages:
a) fermenting one or more renewable starting materials optionally including purification, to produce ethanol or mixtures of alcohols comprising ethanol;
b) dehydrating said alcohol(s) obtained in order to produce, in a first reactor, ethylene or mixtures of alkenes comprising ethylene optionally including purification of the alkene in order to obtain ethylene;
c) poly…

Assignees

• Devisme Samuel
• Chopinez Fabrice
• Pradel Jean-Laurent
• Le Guillaume
• Roussel Thomas
• Arkema France

Inventors

• Devisme Samuel
• Chopinez Fabrice
• Pradel Jean-Laurent
• Le Guillaume
• Roussel Thomas

Classifications

• C08F210/06

  Chemistry & Metallurgy · mapped topic

• C08L2666/02

  Chemistry & Metallurgy · mapped topic

• C08F210/16

  Chemistry & Metallurgy · mapped topic

• C08F2/00

  Chemistry & Metallurgy · mapped topic

• B32B27/32

  Operations & Transport · mapped topic