US 11,945,932 B2 · Plasticizer for halogen resins

Abstract

The present invention relates to [1] a plasticizer for a halogen-based resin containing a mixture of didecyl phthalates each containing a linear or branched C10 alkyl group, in which a content of di-n-decyl phthalate in the mixture is not less than 48 mol % and not more than 70 mol %; [2] a plasticizer composition for a halogen-based resin containing the aforementioned plasticizer; and [3] a halogen-based resin composition containing a halogen-based resin and the aforementioned plasticizer. The plasticizer of the present invention has an excellent plasticizing effect on a halogen-based resin and at the same time, can exhibit excellent effects of improving all of productivity, processability, kneading properties and heat resistance without deterioration in the respective properties.

Claims15

Dependent claims

A plasticizer for a halogen-based resin comprising a mixture of didecyl phthalates each comprising a linear or branched C10 alkyl group, in which a content of di-n-decyl phthalate in the mixture is not less than 48 mol % and not more than 70 mol %, and the remainder of the mixture of didecyl phthalates contains one or more additional didecyl phthalate(s) other than di-n-decyl phthalate.

A method for producing a plasticizer for a halogen-based resin comprising a mixture of didecyl phthalates each comprising a linear or branched C10 alkyl group, wherein the mixture of the didecyl phthalates is obtained by an esterification reaction between a phthalic acid raw material and an alcohol raw material,

the phthalic acid raw material is at least one compound selected from the group consisting of phthalic acid and phthalic anhydride, and comprising the following methods (i) or (ii):
(i) a method of producing the plasticizer by using in the esterification reaction a mixed decanol as a raw material in which a content of n-decanol in the alcohol raw material is precisely controlled such that a content of di-n-decyl phthalate in the plasticizer is not less than 48 mol % and not more than 70 mol % after producing the plasticizer, and
(ii) a method of producing the plasticizer by mixing di-n-decyl phthalate and one or more additional didecyl phthalate(s) other than di-n-decyl phthalate such that a content of the di-n-decyl phthalate in the plasticizer is adjusted to a predetermined value of not less than 48 mol % and not more than 70 mol %.

Dependencies are inferred from the claim text.

Facts

Application

16/978,534Filed 13 Feb 2019

Priority

JP 2018-0421148 Mar 2018

Published

US 2021/0017357 A121 Jan 2021

Granted

2 Apr 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

C08K 5/12
Esters; Ether-esters: of cyclic polycarboxylic acids
C07C 69/80
Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring: phthalic acid esters
C08K 5/0016
Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59: plasticisers
C08L 11/00
Compositions of homopolymers or copolymers of chloroprene

Plasticizer for halogen resins

Life of this patent

Plasticizer for halogen resins

Life of this patent

Abstract

Claims15