Polymer blend
AssigneeIonphase Oy
InventorJyri Nieminen
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Abstract
The invention relates to a polymer blend and a process for its preparation. The polymer blend contains A) a polymer of an olefin and an unsaturated carboxylic acid, wherein the amount of acid groups is 0.5–15 molar %, and B) a polyether block polymer made up of a polyether block and a polyamide or polyester block, the acid groups in polymer A and the polyether blocks in polymer B having at least partly coordinated alkali ions, and an alkali metal being present in an amount of approx. 0.02–3 millimols/gram of the polymer blend. The blend according to the invention has a good electrical conductivity and excellent mechanical properties.
Claims20
An electrically conductive polymer blend, comprising
- A. a polymer of an olefin and an alpha-or beta-unsaturated carboxylic acid having 3–8 carbon atoms, wherein the quantity of acid groups is 0.5–15 molar %, and
- B. a block polyether polymer made up of a polyether block of polyethylene oxide,
- potassium present in an amount of approx. 0.02–3 millimols/one gram of the polymer blend,
- the acid groups of polymer A having at least partly coordinated ions of said potassium, and the block polymer B having at least partly coordinated or complexed ions said of potassium.
A process for preparing an electrically conductive polymer composition, wherein there are mixed together at an elevated temperature
- 90–10 parts by weight of a copolymer made up of an olefin and an unsaturated carboxylic acid,
- 10–90 parts by weight of a block polyether of polyethylene oxide,
- and potassium, the amount of which corresponds to 0.02–3 millimols of the potassium ion/1 gram of the polymer blend.
Dependencies are inferred from the claim text.