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Acrylic polymer composition

A technology of acrylic polymer and composition, applied in the field of acrylic polymer composition, can solve problems such as no report deterioration inhibition, and achieve the effect of preventing heating deterioration

Inactive Publication Date: 2018-11-23
ZEON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the technology of this patent document 2, the self-healing proceeds through the recombination reaction of the repairing agent to prevent the low molecular weight, thereby suppressing the heating deterioration due to heat, but only the deterioration suppression effect at 150° C. is disclosed, and no report is made. Technology for suppression of deterioration in the high temperature range above 190°C

Method used

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  • Acrylic polymer composition
  • Acrylic polymer composition
  • Acrylic polymer composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0169]

[0170] The method for producing the acrylic polymer composition of the present invention is not particularly limited, and examples include a method of mixing an acrylic polymer, a polyfunctional organic compound having an amide group, and various compounding agents added as necessary.

[0171] The mixing method is not particularly limited, and examples thereof include a method of kneading using a kneader such as a roll kneader, Intermix, kneader, Banbury kneader, or screw kneader. In addition, mixing can be performed in a solvent.

[0172] In addition, in the case of compounding a crosslinking agent, it is prepared by using a mixer such as a Banbury mixer, a Brabender mixer, an Intermex, a kneader, etc., to remove the crosslinking agent and The components other than the heat-unstable cross-linking aid and the like are kneaded, then transferred to a roll kneader, etc., and the cross-linking agent and the heat-unstable cross-linking agent are added, and secondary knea...

Embodiment

[0180] Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples. In addition, unless otherwise specified, "parts" in each example are based on weight.

[0181] Various physical properties were evaluated according to the following methods.

[0182] [Measurement of half-life of polyfunctional organic compound having amide group]

[0183] Regarding the half-life of the polyfunctional organic compound having an amide group, using a differential thermal gravimetric simultaneous measurement device ("TG / DTA7200", manufactured by SII Corporation), the temperature was raised according to the following heating program, and the heating temperature of the measurement device was 180°C. °C, the weight loss at the time when the sample temperature was stabilized at 190 °C was measured, and the time until the weight became half was obtained, which was regarded as the half-life of the polyfunctional organic compound having an amide g...

Synthetic example 1

[0195] [Synthesis Example 1: Synthesis of Acrylic Polymer]

[0196] In the polymerization reactor with thermometer, stirring device, nitrogen introduction pipe and decompression device, add 200 parts of water, 3 parts of sodium lauryl sulfate, 100 parts of ethyl acrylate, and repeatedly perform degassing and decompression utilizing decompression. After nitrogen replacement and full removal of oxygen, add 0.002 parts of sodium formaldehyde sulfoxylate and 0.005 parts of cumene hydroperoxide to initiate emulsification polymerization reaction at normal pressure and temperature, continue to react until the polymerization conversion rate reaches 95%, and add polymerization to terminate agent to terminate the polymerization. Then, the obtained emulsified polymerization solution was coagulated using an aqueous magnesium sulfate solution, washed with water, and dried to obtain a rubbery acrylic polymer (polyethyl acrylate).

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Abstract

Provided is an acrylic polymer composition that contains an acrylic polymer and a polyfunctional organic compound having an amide group. When the acrylic polymer composition is heated under the condition of being in air at 190 DEG C for 144 hours, the rate of decrease in the molecular weight of the acrylic polymer is less than 50%.

Description

technical field [0001] The present invention relates to an acrylic polymer composition, and relates to an acrylic polymer composition effectively preventing thermal deterioration caused by heat. Background technique [0002] With the development of petrochemicals, polymers composed of organic compounds contribute to the development of human beings in various forms such as plastics, rubber, fibers, and films. Since these are used in various environments depending on the application, they are improved so that they can be used for a long time by imparting durability in each of the set environments. For example, we have developed products in which UV resistance is added to plastics used outdoors, and products in which cold resistance is added to rubber that can function in extremely cold regions. [0003] On the other hand, internal combustion engines, including engines, whose use has increased with the development of the industry, require lubricating oil and generate a large a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08K5/20
CPCC08K5/20C08L33/04C08K5/0025C08J5/24C08J2333/04C08L33/26C08L2312/00
Inventor 菅原充桐木智史坂本圭江尻和弘
Owner ZEON CORP
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