Highly organized polyolefin structures

Details Highly organized polyolefin structures Highly organized polyolefin structures

2007-04-23

2010-12-28

Teskin, Fred M (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S329500, C525S338000, C525S919000, C526S309000, C526S320000

Reexamination Certificate

active

07858710

ABSTRACT:
A method of preparing periodic, semi-periodic, or semi-random polyethylene-co-acrylic acid or polyethylene-co-methacrylic acid involves polymerizing 1-alkoxyalkyl ester substituted α,Ω-dienes, and/or 1-alkoxyalkyl ester substituted cycloalkenes via olefin metathesis reactions followed by hydrogenation of the alkylene units and subsequently hydrolyzed to the desired polyethylene-co-acrylic acid or polyethylene-co-methacrylic acid. The polyethylene-co-acrylic acid or polyethylene-co-methacrylic acid can then be converted to ionomers by exchange with a monomeric carboxylate salt.

REFERENCES:
patent: 7402642 (2008-07-01), Baugh et al.
Drouin, et al, Multiple Tandem Catalysis: Facile Cycling between Hydrogenation and Metathesis Chemistry, Organometallics, 20(26), 5495-5497, 2001.
Schwendeman, John E., et al., “Modeling Ethylene/Methyl Methacrylate and Ethylene/Methacrylic Acid Copolymers Using Acyclic Diene Metathesis Chemistry,”Macromolecules, Jun. 1, 2004, pp. 4031-4037, vol. 37, No. 11.

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