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Acrylic polymer composition

A technology of acrylic polymers and compositions, applied in the direction of organic chemistry, etc., to achieve the effect of preventing heat deterioration

Inactive Publication Date: 2018-12-21
ZEON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the technique of this patent document 2, the recombination reaction of the repairing agent is used to self-repair and 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 there is no reference to it. Report on technology for suppression of deterioration in the higher temperature range of 190°C or higher

Method used

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  • Acrylic polymer composition
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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0163]

[0164] The method for producing the acrylic polymer composition of the present invention is not particularly limited, and may include mixing the acrylic polymer and the polyfunctional organic compound represented by the above general formula (1) together with various compounding agents added as needed Methods.

[0165] The mixing method is not particularly limited, and examples thereof include a method of kneading using a kneading machine such as a roll mill, an internal mixer, a kneader, a Banbury mixer, or a screw kneader. In addition, mixing can be performed in a solvent.

[0166] In addition, in the case of compounding a crosslinking agent, it can be prepared as follows: each component except the crosslinking agent and a crosslinking auxiliary agent unstable to heat, etc., can be prepared by using a Banbury mixer or a Brabender mixer. , internal mixer, kneader and other mixers for mixing, transfer to the roller mill, add cross-linking agent, cross-linking aids ...

Embodiment

[0174] Hereinafter, an Example and a comparative example are given, and this invention is demonstrated more concretely. In addition, unless otherwise specified, "parts" in each example are based on weight.

[0175] Various physical properties were evaluated according to the following methods.

[0176] [Measurement of half-life of polyfunctional organic compound]

[0177] The half-life of polyfunctional organic compounds was measured using a thermogravimetric differential thermal simultaneous measurement device ("TG / DTA7200", manufactured by SII Corporation) in the following heating procedure, and after setting the heating temperature of the measurement device to 180°C, the sample The weight decreased when the temperature was stabilized at 190° C., and the time until the weight was half was obtained, and this was taken as the half-life of the polyfunctional organic compound.

[0178] Heating steps: 30°C → heat up at 50°C / min → keep at 170°C for 3 minutes → heat up at 10°C / min...

Synthetic example 1

[0189] [Synthesis Example 1: Synthesis of Acrylic Polymer]

[0190] Add 200 parts of water, 3 parts of sodium lauryl sulfate, and 100 parts of ethyl acrylate into a polymerization reactor with a thermometer, a stirring device, a nitrogen introduction pipe and a decompression device, and repeat the decompression based on decompression. After fully removing oxygen by gas and nitrogen replacement, add 0.002 parts of sodium formaldehyde sulfoxylate and 0.005 parts of cumene hydroperoxide to initiate emulsion polymerization reaction at normal pressure and temperature, and continue the reaction until the polymerization conversion rate reaches 95%. , adding a polymerization terminator to terminate the polymerization. Then, the obtained emulsion polymerization solution was coagulated in 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 containing an acrylic polymer and a polyfunctional organic compound represented by general formula (1). (In the general formula (1), R1 and R2 each independently represent a hydrogen atom or a C1-20 alkyl group; R3 and R4 each independently represent a hydrogen atom, an optionally-substituted C1-20 alkyl group, or an optionally-substituted C6-10 aryl group; and k represents an integer greater than or equal to 1.)

Description

technical field [0001] The present invention relates to an acrylic polymer composition, and relates to an acrylic polymer composition capable of effectively preventing thermal deterioration due to heat. Background technique [0002] With the development of petrochemistry, polymers composed of organic compounds have contributed to the development of human beings in various forms such as plastics, rubber, fibers, and films. These can be used in various environments depending on the application, and therefore improvements are being made so as to enable long-term use by imparting durability in assumed environments. For example, plastics that can be used outdoors are being developed with UV resistance, and rubber that can function in extremely cold regions is being developed with cold resistance. [0003] On the other hand, internal combustion engines such as engines whose usage is increasing with the development of the industry require lubricating oil and generate a large amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/00C08K5/20C07C233/36C07C233/78C07C235/50C07C255/57
CPCC07C255/57C07C233/36C07C233/78C07C235/50C08K5/20C08L33/00C08K5/0016C07C233/65C08J5/24C08J2333/00C08L33/10C08L33/14C08L2312/00
Inventor 菅原充桐木智史坂本圭江尻和弘
Owner ZEON CORP
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