Low melt flow branched ionomers
AssigneeFina Technology, Inc.
InventorsJohn Gaustad, Juan J. Aguirre, Jeo Shuler
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Abstract
Embodiments of the present invention include a branched aromatic ionomer, and a process of making it, by co-polymerizing a first monomer comprising an aromatic moiety and an unsaturated alkyl moiety and a second monomer represented by the general formula: [R-AZ]y-MX wherein R is a hydrocarbon chain having from 2 to 40 carbons and at least one polymerizable unsaturation; A is an anionic group; M is a cationic group; Z is −1 or −2; X is +1, +2, +3, +4, or +5; and y is an integer having a value of from 1 to 4. The branched aromatic ionomer has a melt flow index ranging from 1.0 g/10 min. to 13 g/10 min. Optionally the melt flow index ranges from 1.3 g/10 min. to 1.9 g/10 min.
Claims27
A branched aromatic ionomer comprising a product of co-polymerizing a first monomer comprising an aromatic moiety and an unsaturated alkyl moiety and a second monomer represented by the general formula:
- [R-AZ]y-MX
- wherein R is a hydrocarbon chain having from 2 to 40 carbons and at least one polymerizable unsaturation;
- A is an anionic group;
- M is a cationic group;
- Z is −1 or −2;
- X is +1, +2, +3, +4, or +5;
- and y is an integer having a value of from 1 to 4 and wherein the branched aromatic ionomer exhibits a melt flow index (as measured by ASTM D-1238) of from 1.0 g/10 min. to 13 g/10 min.
A process for preparing a branched aromatic ionomer comprising:
- co-polymerizing a first monomer comprising an aromatic moiety and an unsaturated alkyl moiety and a second monomer represented by the general formula;
- [R-AZ]y-MX
- wherein R is a hydrocarbon chain having from 2 to 40 carbons and at least one polymerizable unsaturation;
- A is an anionic group;
- M is a cationic group;
- Z is −1 or −2;
- X is +1, +2, +3, +4, or +5;
- and y is an integer having a value of from 1 to 4 and wherein the branched aromatic ionomer exhibits a melt flow index (as measured by ASTM D-1238) of from 1.0 g/10 min. to 13 g/10 min.
Dependencies are inferred from the claim text.