JP2000041690A - Production of polyphenol - Google Patents
Production of polyphenolInfo
- Publication number
- JP2000041690A JP2000041690A JP10213125A JP21312598A JP2000041690A JP 2000041690 A JP2000041690 A JP 2000041690A JP 10213125 A JP10213125 A JP 10213125A JP 21312598 A JP21312598 A JP 21312598A JP 2000041690 A JP2000041690 A JP 2000041690A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- ratio
- water
- polyphenol
- hydroxyl group
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は酵素によるフェノー
ルの重合反応を有機溶媒−水で行い構造を制御したポリ
フェノールを製造する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a polyphenol having a controlled structure by carrying out an enzymatic polymerization reaction of phenol with an organic solvent-water.
【０００２】[0002]
【従来の技術】従来よりフェノールを有機溶媒−水又は
有機溶媒−緩衝液中において、ペルオキシダーゼ活性を
有する酵素の存在下に過酸化物を添加することによって
フェノール性樹脂を得る方法が知られていた（特表昭６
３−５０２０７９号）。この方法で得られるポリフェノ
ールは水酸基が存在しているフェニレンユニットとＣ−
Ｏ結合を持つオキシフェニレンユニットとの２つの構成
ユニットが結合しているが、この２つのユニットの構成
比を任意に変化させたポリフェノールを合成することは
できなかった。2. Description of the Related Art Heretofore, there has been known a method of obtaining a phenolic resin by adding peroxide to phenol in an organic solvent-water or an organic solvent-buffer in the presence of an enzyme having peroxidase activity. (Table 6)
No. 3-502079). The polyphenol obtained by this method has a phenylene unit having a hydroxyl group and a C-
Although two constituent units with an oxyphenylene unit having an O bond are bonded, a polyphenol in which the constituent ratio of the two units is arbitrarily changed cannot be synthesized.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、ポリフェノ
ールの製造方法において、ポリフェノールを構成する水
酸基を有するフェニレンユニットとＣ−Ｏ結合を有する
オキシフェニレンユニットとの構成比を任意に変化させ
ることのできる方法を提供することをその課題とする。SUMMARY OF THE INVENTION According to the present invention, in the method for producing polyphenol, the constitutional ratio of the phenylene unit having a hydroxyl group and the oxyphenylene unit having a CO bond constituting the polyphenol can be arbitrarily changed. The task is to provide a method.
【０００４】[0004]
【課題を解決するための手段】本発明者らは前記課題を
解決すべく鋭意検討した結果、有機溶媒の含有率を変え
ることによって水酸基を有するフェニレンユニットとオ
キシフェニレンユニットの比を制御できることを見いだ
して本発明に到達した。すなわち、本発明は、酵素を触
媒に用いるフェノールの酸化重合において、反応溶媒で
ある有機溶媒−水の混合比を変化させることで、生成す
るポリフェノールの構成単位である水酸基を有するフェ
ニレンユニットとオキシフェニレンユニットとの構成比
を制御することを特徴とするポリフェノールの製造方法
である。Means for Solving the Problems As a result of diligent studies to solve the above problems, the present inventors have found that the ratio of phenylene units having a hydroxyl group to oxyphenylene units can be controlled by changing the content of an organic solvent. Arrived at the present invention. That is, in the present invention, in the oxidative polymerization of phenol using an enzyme as a catalyst, a phenylene unit having a hydroxyl group, which is a structural unit of a polyphenol to be produced, is changed by changing a mixing ratio of an organic solvent as a reaction solvent-water and oxyphenylene. This is a method for producing polyphenol, characterized by controlling the composition ratio with units.
【０００５】[0005]
【発明の実施の形態】本発明について以下に詳しく説明
する。本発明の方法は、フェノールの酵素触媒重合を有
機溶媒−水混合溶媒中で行う際に混合比を変化させるこ
とで、ポリフェノールの構成単位である、水酸基を有す
るフェニレンユニット（以下、単にユニットＡとも言
う）とオキシフェニレンユニット（以下、単にユニット
Ｂとも言う）の構成比を制御するものである。有機溶媒
と水の比率は任意の比率でよいが、重量比率で５：９５
〜７９：２１の範囲が好ましく、２０：８０〜７５：２
５の範囲が特に好ましい。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below. In the method of the present invention, a phenylene unit having a hydroxyl group, which is a structural unit of polyphenol, is referred to as a unit A by changing the mixing ratio when performing enzyme-catalyzed polymerization of phenol in an organic solvent-water mixed solvent. ) And oxyphenylene units (hereinafter, also simply referred to as unit B). The ratio of the organic solvent to water may be any ratio, but is 5:95 by weight.
~ 79: 21, preferably 20: 80-75: 2.
A range of 5 is particularly preferred.
【０００６】なお、本明細書でポリフェノールに関して
言うユニットＡは下記構造式（１）The unit A referred to herein with respect to polyphenol is represented by the following structural formula (1)
【化１】 で表され、一方、ユニットＢは下記構造式（２）Embedded image On the other hand, the unit B has the following structural formula (2)
【化２】 で表される。また、両者の構成比とは、モル分率ｍポリ
フェノール中のユニットＡのモル分率ｍとユニットＢの
モル分率ｎとの比ｍ／ｎを意味する。Embedded image It is represented by The composition ratio of both means the ratio m / n of the mole fraction m of the unit A and the mole fraction n of the unit B in the polyphenol m.
【０００７】本発明で得られるポリフェノールにおい
て、そのユニットＡとユニットＢの構成比は１．０：
０．２〜１．０：２．０の範囲にあり、本発明では、こ
の範囲においてユニットＡとユニットＢとの構成比を任
意に変化させることができる。本発明においては、特に
ユニットＡとユニットＢとのモル比。Ａ／Ｂは１／０．
５〜１／１．３であるのが好ましい。[0007] In the polyphenol obtained in the present invention, the composition ratio of unit A and unit B is 1.0:
In the range of 0.2 to 1.0: 2.0, in the present invention, the composition ratio of the unit A and the unit B can be arbitrarily changed in this range. In the present invention, in particular, the molar ratio between the unit A and the unit B. A / B is 1/0.
It is preferably from 5 to 1 / 1.3.
【０００８】有機溶媒としては、水と相溶する溶剤が好
ましいが、水と相溶しない溶剤でもよい。水と相溶する
有機溶媒としては、メタノール、エタノール、１，４−
ジオキサン、テトラヒドロフラン（ＴＨＦ）、アセトニ
トリル、アセトン等が挙げられる。これらのうち、炭素
数１〜６、好ましくは１〜３の低級アルコール、特に、
メタノール、エタノールが好ましい。水は蒸留水でもよ
いが、緩衝液でもよい。緩衝液を用いる場合にはｐＨ３
から１０の範囲で、リン酸緩衝液、酢酸緩衝液等が好ま
しいが、これらに限定されるものではない。The organic solvent is preferably a solvent that is compatible with water, but may be a solvent that is not compatible with water. As organic solvents compatible with water, methanol, ethanol, 1,4-
Examples thereof include dioxane, tetrahydrofuran (THF), acetonitrile, and acetone. Among these, lower alcohols having 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms, in particular,
Methanol and ethanol are preferred. The water may be distilled water or a buffer. PH 3 when using buffer
In the range from to 10, a phosphate buffer, an acetate buffer and the like are preferable, but not limited thereto.
【０００９】本発明において、混合溶媒は任意の量を用
いることができるが、フェノールの濃度が０．０１〜５
００ｇ／Ｌの範囲が好ましく、０．５〜２００ｇ／Ｌが
特に好ましい。本発明に用いるペルオキシダーゼの量は
その活性によって異なるが、フェノールｌｇに対して
０．１ｍｇ〜１ｇ、好ましくは０．５ｍｇ〜５０ｍｇで
ある。本発明に用いる過酸化物はハイドロパーオキサイ
ドであり、好ましくは過酸化水素である。過酸化物の使
用量に特に制限はないが、フェノールに対して０．１〜
５倍モルが好ましく、０．３〜１倍モルが特に好まし
い。本発明の反応温度は０〜５０℃の範囲が好ましく、
１０〜３５℃が特に好ましい。In the present invention, an arbitrary amount of the mixed solvent can be used.
The range is preferably 00 g / L, and particularly preferably 0.5 to 200 g / L. The amount of peroxidase used in the present invention varies depending on its activity, but it is 0.1 mg to 1 g, preferably 0.5 mg to 50 mg per gram of phenol. The peroxide used in the present invention is a hydroperoxide, preferably hydrogen peroxide. Although there is no particular limitation on the amount of peroxide used, it is 0.1 to phenol.
A 5-fold mole is preferred, and a 0.3- to 1-fold mole is particularly preferred. The reaction temperature of the present invention is preferably in the range of 0 to 50 ° C,
10-35 ° C is particularly preferred.
【００１０】[0010]
【実施例】以下に本発明を実施例により詳細に説明する
が、本発明はこれらに限定されるものではない。EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto.
【００１１】実施例１ フェノール１．０ｇをメタノール１０ｍｌに溶解し、こ
れに西洋わさびペルオキシダーゼ３０ｍｇをリン酸緩衝
液（ｐＨ７）１０ｍｌに溶解した溶液を加え、３０％過
酸化水素水を０．２５ｍｌ／ｈの速度で５時間滴下し
た。さらに１時間撹拌して析出物を濾取し、水洗、乾燥
した。収量０．８５ｇ（８５％）。得られたポリフェノ
ールを酢酸／ピリジン（１／１）溶液中でアセチル化
し、1Ｈ−ＮＭＲのピーク比より水酸基を有するフェニ
レンＡ／オキシフェニレンＢのユニット比Ａ／Ｂ（モル
比）を計算した。このユニット比Ａ／Ｂは１．０／１．
０であった。Example 1 A solution prepared by dissolving 1.0 g of phenol in 10 ml of methanol and then adding 30 mg of horseradish peroxidase in 10 ml of a phosphate buffer (pH 7) was added. h at a rate of 5 hours. After further stirring for 1 hour, the precipitate was collected by filtration, washed with water and dried. Yield 0.85 g (85%). The obtained polyphenol was acetylated in an acetic acid / pyridine (1/1) solution, and the unit ratio A / B (molar ratio) of phenylene A / oxyphenylene B having a hydroxyl group was calculated from the peak ratio of 1 H-NMR. This unit ratio A / B is 1.0 / 1.
It was 0.
【００１２】実施例２ フェノール１．０ｇをメタノール５ｍｌに溶解し、これ
に西洋わさびペルオキシダーゼ３０ｍｇをリン酸緩衝液
（ｐＨ７）１５ｍｌに溶解した溶液を加え、３０％過酸
化水素水を０．２５ｍｌ／ｈの速度で５時間滴下した。
さらに１時間撹拌して析出物を濾取し、水洗、乾燥し
た。収量０．１８９（１８％）。実施例１と同様にして
ユニット比Ａ／Ｂを計算したところ、そのユニット比は
１．０／０．６であった。Example 2 1.0 g of phenol was dissolved in 5 ml of methanol, and a solution of 30 mg of horseradish peroxidase dissolved in 15 ml of phosphate buffer (pH 7) was added thereto. h at a rate of 5 hours.
After further stirring for 1 hour, the precipitate was collected by filtration, washed with water and dried. Yield 0.189 (18%). When the unit ratio A / B was calculated in the same manner as in Example 1, the unit ratio was 1.0 / 0.6.
【００１３】実施例３ フェノール１．０ｇをメタノール１５ｍｌに溶解し、こ
れに西洋わさびペルオキシダーゼ３０ｍｇをリン酸緩衝
液（ｐＨ７）５ｍｌに溶解した溶液を加え、３０％過酸
化水素水を０．２５ｍｌ／ｈの速度で５時間滴下した。
さらに１時間撹拌して析出物を濾取し、水洗、乾燥し
た。収量０．５０ｇ（５０％）。実施例１と同様にして
ユニット比Ａ／Ｂを計算したところ、そのユニット比は
１．０／１．３であった。EXAMPLE 3 1.0 g of phenol was dissolved in 15 ml of methanol, and a solution of 30 mg of horseradish peroxidase in 5 ml of phosphate buffer (pH 7) was added thereto. h at a rate of 5 hours.
After further stirring for 1 hour, the precipitate was collected by filtration, washed with water and dried. Yield 0.50 g (50%). When the unit ratio A / B was calculated in the same manner as in Example 1, the unit ratio was 1.0 / 1.3.
【００１４】実施例４ フェノール１．０ｇをメタノール５ｍｌに溶解し、これ
に西洋わさびペルオキシダーゼ３０ｍｇを酢酸緩衝液
（ｐＨ５）１５ｍｌに溶解した溶液を加え、３０％過酸
化水素水を０．２５ｍｌ／ｈの速度で５時問滴下した。
さらに１時間撹拌して析出物を濾取し、水洗、乾燥し
た。収量０．１０ｇ（１０％）。実施例１と同様にして
ユニット比Ａ／Ｂを計算したところ、そのユニット比は
１．０／０．５であった。Example 4 1.0 g of phenol was dissolved in 5 ml of methanol, and a solution of 30 mg of horseradish peroxidase in 15 ml of acetate buffer (pH 5) was added thereto. At a speed of 5 hours.
After further stirring for 1 hour, the precipitate was collected by filtration, washed with water and dried. Yield 0.10 g (10%). When the unit ratio A / B was calculated in the same manner as in Example 1, the unit ratio was 1.0 / 0.5.
【００１５】実施例５ フェノール１．０ｇをメタノール１０ｍｌに溶解し、こ
れに西洋わさびペルオキシダーゼ３０ｍｇを酢酸緩衝液
（ｐＨ５）１０ｍｌに溶解した溶液を加え、３０％過酸
化水素水を０．２５ｍｌ／ｈの速度で５時間滴下した。
さらに１時間撹拌して析出物を濾取し、水洗、乾燥し
た。収量０．６９ｇ（６９％）。実施例１と同様にして
のユニット比を計算したところ、そのユニット比は１．
０／０．９であった。Example 5 A solution of 1.0 g of phenol dissolved in 10 ml of methanol and a solution of 30 mg of horseradish peroxidase dissolved in 10 ml of acetate buffer (pH 5) were added thereto, and 30% aqueous hydrogen peroxide was added at 0.25 ml / h. For 5 hours.
After further stirring for 1 hour, the precipitate was collected by filtration, washed with water and dried. Yield 0.69 g (69%). When the unit ratio was calculated in the same manner as in Example 1, the unit ratio was 1.
0 / 0.9.
【００１６】実施例６ フェノール１．０ｇをメタノール１５ｍｌに溶解し、こ
れに西洋わさびペルオキシダーゼ３０ｍｇを酢酸緩衝液
（ｐＨ５）５ｍｌに溶解した溶液を加え、３０％過酸化
水素水を０．２５ｍｌ／ｈの速度で５時間滴下した。さ
らに１時間撹拌して析出物を濾取し、水洗、乾燥した。
収量０．１７ｇ（１７％）。実施例１と同様にしてユニ
ット比Ａ／Ｂを計算したところ、そのユニット比は１．
０／１．１であった。Example 6 A solution of 1.0 g of phenol dissolved in 15 ml of methanol and a solution of 30 mg of horseradish peroxidase dissolved in 5 ml of acetate buffer (pH 5) were added thereto. For 5 hours. After further stirring for 1 hour, the precipitate was collected by filtration, washed with water and dried.
Yield 0.17 g (17%). When the unit ratio A / B was calculated in the same manner as in Example 1, the unit ratio was 1.
0 / 1.1.
【００１７】[0017]
【発明の効果】本発明により、有機溶媒−水の混合比を
変えることで、水酸基を有するフェニレン／オキシフェ
ニレンの構成比の異なるボリフェノールを作り分けるこ
とが可能になった。According to the present invention, by changing the mixing ratio of the organic solvent and water, it is possible to produce different polyphenols having different constitutional ratios of phenylene / oxyphenylene having a hydroxyl group.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年９月２７日（１９９９．９．２
７）[Submission date] September 27, 1999 (September 9, 1999
7)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００４】[0004]
【課題を解決するための手段】本発明者らは前記課題を
解決すべく鋭意検討した結果、低級アルコールの含有率
を変えることによって水酸基を有するフェニレンユニッ
トとオキシフェニレンユニットの比を制御できることを
見いだして本発明に到達した。すなわち、本発明は、酵
素を触媒に用いるフェノールの酸化重合において、炭素
数１〜３の低級アルコールと水とからなる混合溶媒を用
いるとともに、該反応溶媒である低級アルコール−水の
混合比を変化させることで、生成するポリフェノールの
構成単位である水酸基を有するフェニレンユニットとオ
キシフェニレンユニットとの構成比を制御することを特
徴とするポリフェノールの製造方法である。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the ratio of a phenylene unit having a hydroxyl group to an oxyphenylene unit can be controlled by changing the content of a lower alcohol. Arrived at the present invention. That is, the present invention is, in the oxidation polymerization of the phenol using an enzyme in the catalyst, carbon
Using a mixed solvent consisting of lower alcohols of formulas 1-3 and water
In addition, by changing the mixing ratio of lower alcohol -water as the reaction solvent, the constitutional ratio between the phenylene unit having a hydroxyl group, which is a constitutional unit of the generated polyphenol, and the oxyphenylene unit is controlled. This is a method for producing polyphenol.
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】[0005]
【発明の実施の形態】本発明について以下に詳しく説明
する。本発明の方法は、フェノールの酵素触媒重合を低
級アルコール−水混合溶媒中で行う際に混合比を変化さ
せることで、ポリフェノールの構成単位である、水酸基
を有するフェニレンユニット（以下、単にユニットＡと
も言う）とオキシフェニレンユニット（以下、単にユニ
ットＢとも言う）の構成比を制御するものである。低級
アルコールと水の比率は任意の比率でよいが、重量比率
で５：９５〜７９：２１の範囲が好ましく、２０：８０
〜７５：２５の範囲が特に好ましい。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below. The method of the present invention, low enzyme-catalyzed polymerization of phenolic
By changing the mixing ratio when performing the reaction in a mixed alcohol -water mixture, a phenylene unit having a hydroxyl group (hereinafter also simply referred to as unit A) and an oxyphenylene unit (hereinafter simply referred to as unit B), which are structural units of polyphenol, are obtained. ) Is controlled. Low grade
The ratio of alcohol to water may be any ratio, but is preferably in the range of 5:95 to 79:21 by weight, and 20:80.
A range of ~ 75: 25 is particularly preferred.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００８】低級アルコールとしては、炭素数１〜３の
低級アルコール、特に、メタノール、エタノールが好ま
しい。水は蒸留水でもよいが、緩衝液でもよい。緩衝液
を用いる場合にはｐＨ３から１０の範囲で、リン酸緩衝
液、酢酸緩衝液等が好ましいが、これらに限定されるも
のではない。[0008] As lower alcohols, lower alcohols having 1 to 3 carbon atoms, in particular, methanol, ethanol is preferred. The water may be distilled water or a buffer. When a buffer is used, a phosphate buffer, an acetate buffer, or the like is preferable in the range of pH 3 to 10, but is not limited thereto.
【手続補正５】[Procedure amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１７[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１７】[0017]
【発明の効果】本発明により、低級アルコール−水の混
合比を変えることで、水酸基を有するフェニレン／オキ
シフェニレンの構成比の異なるボリフェノールを作り分
けることが可能になった。According to the present invention, by changing the mixing ratio of lower alcohol -water, it becomes possible to separately produce polyphenols having different constitutional ratios of phenylene / oxyphenylene having a hydroxyl group.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宇山 浩 滋賀県大津市本堅田４−16−６−404 (72)発明者 小口 貴久 茨城県つくば市春日３丁目５−５ モリ・ リッシェルつくば春日101 Ｆターム(参考） 4B064 AC18 AC21 CA21 CB11 CC03 CC07 CD01 CD05 CD06 4J005 AA26 BB01 BB02 4J032 CA04 CB01 CD00 CE03 CE22 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Uyama 4-16-6-404 Motokonda, Otsu City, Shiga Prefecture (72) Takahisa Oguchi 3-5-5 Kasuga, Tsukuba City, Ibaraki Prefecture 101 Mori Richelle Tsukuba Kasuga 101 F term (reference) 4B064 AC18 AC21 CA21 CB11 CC03 CC07 CD01 CD05 CD06 4J005 AA26 BB01 BB02 4J032 CA04 CB01 CD00 CE03 CE22
Claims (6)
るフェノールの酸化重合において、反応溶媒である有機
溶媒−水の混合比を変化させることで、生成するポリフ
ェノールの構成単位である水酸基を有するフェニレンユ
ニットとオキシフェニレンユニットとの構成比を制御す
ることを特徴とするポリフェノールの製造方法。In the oxidative polymerization of phenol using an enzyme as a catalyst and a peroxide as an oxidizing agent, a hydroxyl group which is a structural unit of polyphenol produced by changing a mixing ratio of an organic solvent-water as a reaction solvent. A method for producing a polyphenol, comprising controlling the composition ratio of a phenylene unit and an oxyphenylene unit having the following formula:
９：２１であることを特徴とする請求項１記載の製造方
法。2. The weight ratio of the organic solvent to water is 5: 95-7.
9. The method according to claim 1, wherein the ratio is 9:21.
キシフェニレンユニットとの構成比が１．０：０．２〜
１．０：２．０の範囲にあることを特徴とする請求項１
又は２記載の製造方法。3. The composition ratio of a phenylene unit having a hydroxyl group to an oxyphenylene unit is 1.0: 0.2 to 3.
2. The method according to claim 1, wherein the ratio is in the range of 1.0: 2.0.
Or the production method according to 2.
項１〜３のいずれかに記載の製造方法。4. The method according to claim 1, wherein the water is distilled water.
を特徴とする請求項１〜３のいずれかに記載の製造方
法。5. The production method according to claim 1, wherein the water is a buffer having a pH of 3 to 10.
オキシダーゼ、過酸化物が過酸化水素である請求項１〜
５のいずれかに記載の製造方法。6. The organic solvent is a lower alcohol, the enzyme is peroxidase, and the peroxide is hydrogen peroxide.
5. The production method according to any one of 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10213125A JP3106159B2 (en) | 1998-07-28 | 1998-07-28 | Polyphenol production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10213125A JP3106159B2 (en) | 1998-07-28 | 1998-07-28 | Polyphenol production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000041690A true JP2000041690A (en) | 2000-02-15 |
| JP3106159B2 JP3106159B2 (en) | 2000-11-06 |
Family
ID=16633999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10213125A Expired - Lifetime JP3106159B2 (en) | 1998-07-28 | 1998-07-28 | Polyphenol production method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3106159B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081185A (en) * | 1999-07-15 | 2001-03-27 | Agency Of Ind Science & Technol | Phenol polymer |
| JP2002155132A (en) * | 2000-09-07 | 2002-05-28 | National Institute Of Advanced Industrial & Technology | 4-substituted phenol polymer |
| JP2002293892A (en) * | 2001-03-29 | 2002-10-09 | National Institute Of Advanced Industrial & Technology | 4-position substituted phenol copolymer |
| JP2006290989A (en) * | 2005-04-08 | 2006-10-26 | Dainippon Ink & Chem Inc | Epoxy resin hardener, epoxy resin hardened article, and method for producing polyphenol |
| JP2007166985A (en) * | 2005-12-22 | 2007-07-05 | Kyushu Univ | Method for adjusting hydroxyl group content of aromatic polymer composition |
-
1998
- 1998-07-28 JP JP10213125A patent/JP3106159B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001081185A (en) * | 1999-07-15 | 2001-03-27 | Agency Of Ind Science & Technol | Phenol polymer |
| JP2002155132A (en) * | 2000-09-07 | 2002-05-28 | National Institute Of Advanced Industrial & Technology | 4-substituted phenol polymer |
| JP2002293892A (en) * | 2001-03-29 | 2002-10-09 | National Institute Of Advanced Industrial & Technology | 4-position substituted phenol copolymer |
| JP2006290989A (en) * | 2005-04-08 | 2006-10-26 | Dainippon Ink & Chem Inc | Epoxy resin hardener, epoxy resin hardened article, and method for producing polyphenol |
| JP2007166985A (en) * | 2005-12-22 | 2007-07-05 | Kyushu Univ | Method for adjusting hydroxyl group content of aromatic polymer composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3106159B2 (en) | 2000-11-06 |
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