JP2008115192A - Method for stabilization of alkylphenols - Google Patents

Method for stabilization of alkylphenols Download PDF

Info

Publication number
JP2008115192A
JP2008115192A JP2007339095A JP2007339095A JP2008115192A JP 2008115192 A JP2008115192 A JP 2008115192A JP 2007339095 A JP2007339095 A JP 2007339095A JP 2007339095 A JP2007339095 A JP 2007339095A JP 2008115192 A JP2008115192 A JP 2008115192A
Authority
JP
Japan
Prior art keywords
alkylphenols
present
phosphite
heat
oxygen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007339095A
Other languages
Japanese (ja)
Inventor
Kenji Konishi
建治 小西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honshu Chemical Industry Co Ltd
Original Assignee
Honshu Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honshu Chemical Industry Co Ltd filed Critical Honshu Chemical Industry Co Ltd
Priority to JP2007339095A priority Critical patent/JP2008115192A/en
Publication of JP2008115192A publication Critical patent/JP2008115192A/en
Pending legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide alkylphenols which are free from discoloring even when they are exposed to oxygen, heat, etc., during preservation. <P>SOLUTION: Alkylphenols are stabilized against to oxygen, heat, etc., by the addition of triaryl phosphites such as triphenyl phosphite to the alkylphenols. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はアルキルフェノール類の安定化方法に関する。さらに詳しくは、本発明は、アルキルフェノール類における空気、熱による着色等の保存安定性を改善する方法に関する。   The present invention relates to a method for stabilizing alkylphenols. More specifically, the present invention relates to a method for improving the storage stability of alkylphenols such as coloring by air and heat.

一般に、アルキルフェノール類は、保存中に空気酸化を受けて経時的に着色してくることが知られ、着色の度合いは酸素、熱等に曝されることにより促進される。一方、アルキルフェノール類は、樹脂等の重合体の安定剤原料、塗料・接着剤の原料、医・農薬の原料又は電子材料の原料等々として広範な用途に使用されているが、これらの着色は商品価値を低下させるのみならず、それを原料とする誘導品の品質にも重大な影響を与える場合があり、アルキルフェノール類を、酸素、熱など対し経時的に着色することなく安定化させることは工業的に重要な課題である。従来、アルキルフェノール類の安定化方法に関しては、例えば、特開昭52−68134号公報には、フェノール誘導体にヒドラジン又は水加ヒドラジンを添加する方法が開示されている。また、特開昭57−165332号公報には、フェノール類にジエチルヒドロキシアミン又はその塩を添加する方法が開示されている。   In general, alkylphenols are known to undergo air oxidation during storage and become colored over time, and the degree of coloring is promoted by exposure to oxygen, heat, and the like. Alkylphenols, on the other hand, are used in a wide range of applications as stabilizers for polymers such as resins, raw materials for paints and adhesives, raw materials for medicines and agricultural chemicals, and raw materials for electronic materials. In addition to lowering the value, it may also have a significant impact on the quality of derivatives derived from it. It is an industry to stabilize alkylphenols without coloring them over time against oxygen, heat, etc. Is an important issue. Conventionally, regarding a method for stabilizing alkylphenols, for example, JP-A-52-68134 discloses a method of adding hydrazine or hydrazine to a phenol derivative. Japanese Patent Application Laid-Open No. 57-165332 discloses a method of adding diethylhydroxyamine or a salt thereof to phenols.

しかしながら、このような従来の方法はいずれも窒素含有化合物の添加であり、毒性を有するか又は臭気がする等の欠点があり、そのため、工業的に取り扱う場合、作業環境対策等の問題がある。本発明者らは、アルキルフェノール類の安定化に優れるとともに、従来の問題点を解決したアルキルフェノール類の安定化方法を開発すべく鋭意検討した結果、本発明を完成した。すなわち、本発明は、アルキルフェノール類の酸素、熱などに対する経時的な着色を防止すると共に、工業的な取り扱いが容易な安定化方法を提供することを課題とする。   However, all of these conventional methods involve the addition of a nitrogen-containing compound, and have drawbacks such as toxicity or odor. For this reason, when industrially handled, there are problems such as work environment countermeasures. The inventors of the present invention have completed the present invention as a result of intensive studies to develop a method for stabilizing alkylphenols that is excellent in stabilizing alkylphenols and solves the conventional problems. That is, it is an object of the present invention to provide a stabilization method that prevents coloration of alkylphenols over time with respect to oxygen, heat, and the like and that is easy to handle industrially.

本発明では、アルキルフェノール類に亜リン酸トリアリールエステル類を添加することを特徴とするアルキルフェノール類の安定化方法を提供する。本発明において、アルキルフェノール類としては、例えばフェノールにアルキル基が1〜3個置換したものであり、アルキル基としては、メチル基、エチル基、直鎖乃至分岐状のプロピル基、ブチル基、ペンチル基、ヘキシル基、オクチル基、ノニル基等が挙げられる。従って、アルキルフェノール類として、具体的には、例えばクレゾール、キシレノール、エチルフェノール、プロピルフェノール、ジメチルフェノール、トリメチルフェノール、ブチルフェノール、オクチルフェノール、ノニルフェノール、メチル−t−ブチルフェノール、エチル−t−ブチルフェノール、プロピル−t−ブチルフェノール、ジ−t−ブチルフェノール等が挙げられ、これらはアルキル基の置換位置が異なっていてもよい。これらのうちメチル−t−ブチルフェノールが好ましい。   The present invention provides a method for stabilizing alkylphenols, which comprises adding triaryl phosphites to alkylphenols. In the present invention, the alkylphenols are, for example, those obtained by substituting 1 to 3 alkyl groups with phenol. Examples of the alkyl groups include methyl groups, ethyl groups, linear or branched propyl groups, butyl groups, and pentyl groups. Hexyl group, octyl group, nonyl group and the like. Accordingly, specific examples of alkylphenols include cresol, xylenol, ethylphenol, propylphenol, dimethylphenol, trimethylphenol, butylphenol, octylphenol, nonylphenol, methyl-t-butylphenol, ethyl-t-butylphenol, propyl-t- Examples thereof include butylphenol and di-t-butylphenol, and these may have different substitution positions of the alkyl group. Of these, methyl-t-butylphenol is preferred.

また、本発明において保存安定剤として用いられる亜リン酸トリアリールエステル類としては、具体的には、例えばトリフェニルホスファイト、トリトリルホスファイト、トリキシリルホスファイト、トリビフェニルホスファイト、トリナフチルホスファイト等が挙げられが、なかでもトリフェニルホスファイト、トリトリルホスファイトが好ましく、特にトリフェニルホスファイトが好ましい。   Specific examples of phosphorous acid triaryl esters used as a storage stabilizer in the present invention include triphenyl phosphite, tolyl phosphite, trixyl phosphite, tribiphenyl phosphite, trinaphthyl phosphite. Among them, triphenyl phosphite and tolyl phosphite are preferable, and triphenyl phosphite is particularly preferable.

これらの亜リン酸トリアリールエステル類は、単独で用いてもよいし、これらの混合物として用いてもよい。また、亜リン酸トリアリールエステル類のアルキルフェノール類に対しての添加方法については、特に制限はなく、例えば、そのまま添加し、必要に応じて加温し、溶解させるか、又は有機溶剤の溶液として添加溶解させる等の方法で用いることが出来る。本発明において安定剤として加えられる亜リン酸トリアリールエステル類の添加量は、アルキルフェノール類の種類、アルキルフェノール類の初期着色の程度、保存条件又は着色防止期間等により最適使用量は変化するが、通常、アルキルフェノールに対して、重量比で10ppm〜1%、好ましくは20ppm〜2000ppm、より好ましくは50ppm〜500ppmである。   These phosphorous acid triaryl esters may be used alone or as a mixture thereof. Moreover, there is no restriction | limiting in particular about the addition method with respect to the alkylphenols of phosphorous acid triaryl ester, For example, it adds as it is, it heats as needed, makes it melt | dissolve, or uses it as a solution of an organic solvent. It can be used by a method such as addition and dissolution. In the present invention, the amount of triaryl phosphite added as a stabilizer in the present invention varies depending on the type of alkylphenol, the degree of initial coloration of the alkylphenol, the storage conditions or the coloration prevention period, etc. The weight ratio with respect to the alkylphenol is 10 ppm to 1%, preferably 20 ppm to 2000 ppm, more preferably 50 ppm to 500 ppm.

樹脂等の重合体の安定剤原料、塗料・接着剤の原料、医・農薬の原料又は電子材料の原料等々として広範な用途に使用されている有用な工業原料のアルキルフェノール類は、保存中に酸素、熱等に曝されることにより経時的に着色してくることが知られているが、本発明では、アルキルフェノール類に亜リン酸トリアリールエステル類を保存安定剤として加えることによって効果的に着色を防止することができる。本発明において安定化されたアルキルフェノール類は、酸素、熱などに対し経時的に着色することが少ないので、これを原料とする誘導品の品質に影響を及ぼすことがなく、商品価値を下げることがない。   Alkylphenols, which are useful industrial raw materials used in a wide range of applications, such as raw materials for stabilizers of polymers such as resins, raw materials for paints and adhesives, raw materials for medicines and agricultural chemicals, and raw materials for electronic materials, However, in the present invention, it is effectively colored by adding triaryl phosphite as a storage stabilizer to alkylphenols. Can be prevented. Alkylphenols stabilized in the present invention are less likely to be colored over time with respect to oxygen, heat, etc., so that they do not affect the quality of derivatives derived from them, and may lower the commercial value. Absent.

(実施例)
以下、実施例により本発明をさらに説明する。なお、実施例において熱安定性試験はASTM―1554−63Tの方法により行い、得られた値をガードナー表示した。
(Example)
Hereinafter, the present invention will be further described by examples. In the examples, the thermal stability test was performed by the method of ASTM-1554-63T, and the obtained value was displayed as a Gardner.

50mlのガラス製試験管に4−メチル−2−t−ブチルフェノール(色相ハーゼン番号APHA:20)25gを入れ、これにトリフェニルホスファイト(純度95%以上)100ppmを添加し、溶解させて、窒素ガス雰囲気下65℃において、下記の時間保存した後、着色度合いを測定した。その結果を表1に示す。   In a 50 ml glass test tube, 25 g of 4-methyl-2-t-butylphenol (hue Hazen number APHA: 20) is added, and 100 ppm of triphenyl phosphite (purity of 95% or more) is added and dissolved therein. After storage at 65 ° C. in a gas atmosphere for the following time, the degree of coloring was measured. The results are shown in Table 1.

Claims (1)

アルキルフェノール類に亜リン酸トリアリールエステル類を添加することを特徴とするアルキルフェノール類の安定化方法。   A method for stabilizing alkylphenols, characterized by adding triaryl phosphites to alkylphenols.
JP2007339095A 2007-12-28 2007-12-28 Method for stabilization of alkylphenols Pending JP2008115192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007339095A JP2008115192A (en) 2007-12-28 2007-12-28 Method for stabilization of alkylphenols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007339095A JP2008115192A (en) 2007-12-28 2007-12-28 Method for stabilization of alkylphenols

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2002107570A Division JP2003300921A (en) 2002-04-10 2002-04-10 Method of stabilizing alkylphenol

Publications (1)

Publication Number Publication Date
JP2008115192A true JP2008115192A (en) 2008-05-22

Family

ID=39501420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007339095A Pending JP2008115192A (en) 2007-12-28 2007-12-28 Method for stabilization of alkylphenols

Country Status (1)

Country Link
JP (1) JP2008115192A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148622A (en) * 1974-10-16 1976-04-26 Seiko Kagaku Kk TAIHENSHOKUSEIEKIJOARUKIRUKAFUENOORURUINO SEIZOHO
JPS5714639A (en) * 1980-07-01 1982-01-25 Katsuta Kako Kk Stabilized composition of halogen-containing resin
JPH0272131A (en) * 1988-07-11 1990-03-12 General Electric Co <Ge> Process and composition
JPH11100341A (en) * 1997-09-29 1999-04-13 Teijin Ltd Purification of bisphenol compound

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148622A (en) * 1974-10-16 1976-04-26 Seiko Kagaku Kk TAIHENSHOKUSEIEKIJOARUKIRUKAFUENOORURUINO SEIZOHO
JPS5714639A (en) * 1980-07-01 1982-01-25 Katsuta Kako Kk Stabilized composition of halogen-containing resin
JPH0272131A (en) * 1988-07-11 1990-03-12 General Electric Co <Ge> Process and composition
JPH11100341A (en) * 1997-09-29 1999-04-13 Teijin Ltd Purification of bisphenol compound

Similar Documents

Publication Publication Date Title
US6726854B2 (en) Inhibitor composition for stabilizing substances capable of free radical polymerization
EP3619260A1 (en) Stabilising composition
US20070208204A1 (en) Polymerization inhibitor for stabilizing olefinically unsaturated monomers
CN112004879A (en) Antidegradant blends
US4049822A (en) Microbiocidal compositions comprising a solution of a phenoxarsine compound
JP2008115192A (en) Method for stabilization of alkylphenols
JPH11172229A (en) 4-hydroxyquinoline-3-carboxylic acid derivative as light stabilizer
US3530127A (en) Triazine derivatives
US6518453B1 (en) Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization
JP2003300921A (en) Method of stabilizing alkylphenol
US4310676A (en) Method of stabilizing monomeric acrylic acid esters against premature polymerization and esters thus stabilized
JPS5817738B2 (en) Process for producing bis(hydroxy-di-tert-butyl-phenyl)-alkanoic acid ester
US20230312872A1 (en) Plasticizers for cellulose esters
BR112020005352B1 (en) PLASTICIZER COMPOSITION AND RESIN COMPOSITION INCLUDING THE SAME
JP2003300920A (en) Method of stabilizing cyclohexylphenol
JPH11140010A (en) Stabilized orthophthalaldehyde composition
TWI702221B (en) Method for the preparation of a stablized organophosphorous compound solution
JP3085914B2 (en) Method for preparing color-stabilized basic monomers
US9045618B2 (en) Liquid stabilizer mixtures
JPH03503896A (en) How to inhibit polymerization of acid monomers
JPH0952979A (en) Cellulose ester film excellent in stability
US7504541B2 (en) Process for stabilizing cyclobutanone derivatives
GB2592952A (en) Composition
JP2003300944A (en) Method of stabilization for dicyclohexylamine
Mukmeneva et al. The influence of bisphenol antioxidants on thermo-oxidative degradation of plasticised poly (vinyl chloride)

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101214

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110208

Effective date: 20110208

Free format text: JAPANESE INTERMEDIATE CODE: A821

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20110208

A02 Decision of refusal

Effective date: 20110614

Free format text: JAPANESE INTERMEDIATE CODE: A02