Benzofuranone derivatives and application of the same
AssigneesChitec Technology Co., Ltd., Fdc Lees Chemical Industry Co., Ltd., Double Bond Chemical Ind., Co., Ltd.
InventorsChing-Fan Chiu, Ching-Yie Su, Eric Lee
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Abstract
The present invention relates to the antioxidant compounds which are synthesized or derived from benzofuranone compound and benzoic acid compound. The antioxidant compound with remarkable heat resistance possesses carbon-centered radical quencher and primary antioxidant synergism. It can be use as additive for polymer to enhance its stability of melting flow and color.
Claims10
A benzofuranone derivative with antioxidant ability, which is provided with formula (I) as follow:
- wherein n=0, 1, 2, or 3;
- R1 and R2 independently represent H or C1-C8 alkyl group;
- R3 and R4 independently represent H or C1-C6 alkyl group and excluding C1-C6 alkyl group simultaneously;
- R5 and R6 independently represent H or C1-C6 alkyl group and excluding C1-C6 alkyl group simultaneously;
- and
- R7 is H or OH.
A method for stabilizing organic materials, including adding a compound with the following formula (I) structure into aforesaid organic materials:
- wherein n=0, 1, 2, or 3;
- R1 and R2 independently represent H or C1-C8 alkyl group;
- R3 and R4 independently represent H or C1-C6 alkyl group and excluding C1-C6 alkyl group simultaneously;
- R5 and R6 independently represent H or C1-C6 alkyl group and excluding C1-C6 alkyl group simultaneously;
- and
- R7 is H or OH.
Dependencies are inferred from the claim text.