KR960034310A - Thermoplastic Polyetherester Block Copolymer Composition - Google Patents

Abstract

The present invention relates to a thermoplastic polyetherester block copolymer composition, and more particularly, to a conventional polyetherester block air having a structure in which the soft segment of the crystalline polyester and the soft segment of the amorphous polyether are alternately repeated. Phenolic antioxidant in coalescence. The present invention relates to a polyetherester block copolymer composition having an excellent thermal stability by containing an amine antioxidant and a peroxide decomposer.

Description

Thermoplastic Polyetherester Block Copolymer Composition

Since this is an open matter, no full text was included.

Claims (4)

In the thermoplastic polyether ester block copolymer having a structure in which a hard segment represented by the following structural formula (A) and a soft segment represented by the following structural formula (B) are alternately repeated, 100 parts by weight of the polyether ester block copolymer The thermoplastic polyether ester block copolymer composition which contained 0.05-1.0 weight part of phenolic antioxidants, 0.01-0.5 weight part of amine antioxidants, and 0.01-1.0 weight part of peroxide decomposers. Wherein D is a radical from which two hydroxy groups are removed from C ₂ to C ₈ saturated aliphatic diols and cyclic diols alone or in a mixture of two or more, and diol compounds include ethylene glycol, 1,2-propanediol, 1, 3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,4-cyclohexanedimethanol, R is an aromatic, aliphatic and cyclic dicarboxyl with a molecular weight of 500 or less Acids alone or radicals from which two carboxyl groups have been removed from a mixture of two or more, dicarboxylic acid compounds include terephthalic acid, isophthalic acid, orthophthalic acid, adipic acid, suberic acid, azeraic acid, sebacic acid, 1,4-cyclohexane Dicarboxylic acid or a lower alkyl ester product thereof, G is a polyether glycol having a molecular weight of 400 to 4000 alone or a mixture of two or more thereof, and a radical having two hydroxy groups removed therefrom. Recall, a polypropylene glycol, polytetramethylene glycol. The thermoplastic polyether ester block copolymer composition according to claim 1, wherein the phenolic antioxidant is a single or a mixture of two or more selected from the following structural formulas (1) and (2). Wherein R ¹ and R ² are the same as or different from each other, and are substituted or unsubstituted C ₁ to C ₂₅ alkyl groups, C ₆ to C ₂₅ aryl groups or lower ester groups thereof, and R ³ and R ⁴ are Each is the same as or different from each other, a substituted or unsubstituted C ₁ to C ₂₅ alkyl group, or C ₆ to ₂₅ aryl group, n is an integer of 1 to 4. The thermoplastic polyether ester block copolymer composition according to claim 1, wherein the amine antioxidant is a single or a mixture of two or more selected from the following structural formulas (3) and (4). In the above formula, R ⁵ and R ⁶ are each the same as or different from each other substituted or unsubstituted C ₆ ~ C ₂₅ aryl group. The thermoplastic peroxide decomposing agent according to claim 1, wherein the peroxide decomposing agent is a single or a mixture of two or more selected from the following structural formulas (5), (6), (7), (8), (9) and (10): Polyetherester block copolymer composition. In the above formula, R ⁷ and R ¹⁸ are each the same as or different from each other, a substituted or unsubstituted C ₁ to C ₂₅ alkyl group, C ₆ to C ₂₅ aryl group or C ₁ to C ₂₅ alkylene group. ※ Note: The disclosure is based on the initial application.