Substituted benzotriazole phenolate salts and antioxidant compositions formed therefrom
Assignee3M Innovative Properties Company
InventorsNathan E. Schultz, Fuming B. Li, Kelly A. Volp, Mark McCormick
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Abstract
A class of antioxidant compositions include benzotriazole phenolate salts with substituents either ortho to the phenol hydroxide group and/or para to the phenol hydroxide group can be prepared from substituted benzotriazole phenols. The ortho substituent group can be a simple hydrocarbon, alkoxy or amino group, or the ortho substituent group can be a linking group, linking the benzotriazole phenolate to another benzotriazole phenolate group.
Claims16
An antioxidant composition comprising one or more macromolecular salt compositions, the macromolecular salt composition comprising an assembly of metal salts comprising repeat units of the structure:
- wherein X comprises a —O—, —S—, —S(O)2—, or —NR10 —linking group where R10 comprises a hydrogen atom, an alkyl group, or an aryl group;
- each R2, R3, R4, R5, R6, R7, R8, R11, R12, R13, R14, R15, R16, and R17, independently comprises a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or a halogen atom;
- m=0.5, 1, or 2;
- M is a metal ion with a valency of 2m such that M is lithium sodium or potassium when m=0.5;
- M is calcium, magnesium, or cobalt, when m=1;
- and M is vanadium or titanium when m=2.
A macromolecular salt composition comprising an assembly of metal salts comprising repeat units of a substituted benzotriazole phenolate anion and a metal cation with the structure:
- wherein X comprises a —O—, —S—, —S(O)—, —S(O)2—, or —NR10—linking group where R′° comprises a hydrogen atom, an alkyl group, or an aryl group;
- each R2, R3, R4, R5, R6, R7, R8, R11, R12, R13, R14, R15, R16, and R17, independently comprises a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or a halogen atom;
- m=0.5, 1, or 2;
- M is a metal ion with a valency of 2m such that M is lithium sodium or potassium when m=0.5;
- M is calcium, magnesium, or cobalt, when m=1;
- and M is vanadium or titanium when m=2.
Dependencies are inferred from the claim text.