Oxidized Carbon Blacks Treated with Polyetheramines and Coating Compositions Comprising Same
AssigneeCabot Corporation
InventorsAngelica Maria Sanchez Garcia, Eugene N. Step, Jeffrey Scott Sawrey, Lang H. Nguyen, Joshua B. Preneta
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Abstract
Disclosed herein are materials and compositions comprising: an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm; and a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black. Also disclosed are coatings and coating compositions comprising these materials and methods of making the same.
Claims38
A powdered material comprising:
- an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm;
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- a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black.
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A pellet comprising:
- an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm;
- and
- a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black.
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A coating composition, comprising:
- an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm,
- a polyetheramine comprising ethylene oxide and propylene oxide monomers, and
- a resin having a molecular weight of at least 10,000.
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A coating comprising:
- an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm,
- a polyetheramine comprising ethylene oxide and propylene oxide monomers, and
- a resin selected from acrylics, polyesters, polyurethanes, alkyds, cellulose acetate butyrate, nitro cellulose, melamines, epoxies, and blends and copolymers thereof.
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A method of preparing a pellet or powdered material, comprising:
- coating an oxidized carbon black with a polyetheramine, wherein the oxidized carbon black is obtained by oxidizing an unmodified carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm.
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Dependencies are inferred from the claim text.