JPS62212409A - Production of high-purity phenolic resin - Google Patents

Production of high-purity phenolic resin

Info

Publication number
JPS62212409A
JPS62212409A JP5761786A JP5761786A JPS62212409A JP S62212409 A JPS62212409 A JP S62212409A JP 5761786 A JP5761786 A JP 5761786A JP 5761786 A JP5761786 A JP 5761786A JP S62212409 A JPS62212409 A JP S62212409A
Authority
JP
Japan
Prior art keywords
condensate
water
phenol
vacuum
phenolic resin
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
JP5761786A
Other languages
Japanese (ja)
Inventor
Fusaki Shitooka
志渡岡 房己
Shigeki Yasuhara
安原 茂樹
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP5761786A priority Critical patent/JPS62212409A/en
Publication of JPS62212409A publication Critical patent/JPS62212409A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the titled resin low in impurity and foreign matter content easily within a short time, by dehydrating a condensate of a phenol with an aldehyde in a vacuum under specified temperature conditions, washing the product with water at normal pressure and dehydrating it in a vacuum. CONSTITUTION:A phenol (A) (e.g., phenol) is polymerized with an aldehyde (B) (e.g., formalin) in the presence of a catalyst (e.g., oxalic acid) to obtain a condensate. This condensate is dehydrated at 150-180 deg.C for 30-60min in a vacuum of 100-600Torr, washed with distilled water, preferably, distilled water heated to 80-90 deg.C at 150-180 deg.C and normal pressure for about 1hr and again washed with water at about 200-240 deg.C for about 1hr in a vacuum of 30-60Torr.

Description

【発明の詳細な説明】 [技術分野1 本発明は不純物や異物の少ないノボラック系フェノール
樹脂の製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a method for producing a novolak phenolic resin with few impurities and foreign substances.

[背景技術1 従来上り、/ボラック系7エ)−ル樹脂はへキサメチレ
ンチラミン等を混合して7エ/−ル樹脂成形材料等とし
て実用に供されており、これらの用途では不純物や異物
はあまり問題とはならなかった。
[Background technology 1 Conventionally, borac-based 7-el resins have been mixed with hexamethylene lentilamine, etc. and used as 7-el resin molding materials, and in these applications, impurities and foreign substances was not much of a problem.

しかしながら半導体封止材料や積層板として用いるノボ
ラック系71ノール型エポキシ樹脂とかエポキシ樹脂組
成物の硬化剤として採用される場合には、電気性能(絶
縁性)や耐湿性が要求される関係上、未反応原料(フエ
ノール類等)、残存する触媒等の不純物が問題とされる
However, when used as a curing agent for novolak-based 71-nol epoxy resins and epoxy resin compositions used in semiconductor encapsulation materials and laminates, electrical performance (insulating properties) and moisture resistance are required. Impurities such as reaction raw materials (phenols, etc.) and residual catalysts are considered problems.

このため、従来では、例えば、特開昭60−53516
号公報に開示されているように、フェノール類とアルデ
ヒド類との縮合物を減圧下(20Torr)、10時間
かけて260℃まで加熱し、2時間かけて脱水させ、こ
の後150℃で蒸留水を入れ、水蒸気を吹き込んで水蒸
気蒸留を1時間行い、この後蒸留水を入れ、90℃で分
離し、水を除去し、再度3時間かけて150℃まで加熱
脱水して取り出すことにより、高純度のフェノール樹脂
がg1造されているが、この方法は製造時間が長く、し
かも蒸気発生機も必要となって複雑な工程となってしま
っていた。
For this reason, conventionally, for example, Japanese Patent Application Laid-Open No. 60-53516
As disclosed in the publication, a condensate of phenols and aldehydes is heated under reduced pressure (20 Torr) to 260°C over 10 hours, dehydrated over 2 hours, and then heated to 150°C with distilled water. and steam distillation for 1 hour by blowing in steam, then adding distilled water, separating at 90°C, removing water, heating to 150°C for 3 hours again, and taking out to obtain high purity. However, this method requires a long production time and requires a steam generator, resulting in a complicated process.

[発明の目的] 本発明は上記事情に鑑みて為されたものであり、その目
的とするところは、製造時間が短く、しかも比較的低温
で行うことができ、簡単な工程で高純度フェノール樹脂
を製造することにある。
[Objective of the Invention] The present invention was made in view of the above circumstances, and its purpose is to produce a high-purity phenolic resin in a simple process that can be carried out in a short production time and at a relatively low temperature. The purpose is to manufacture.

[発明の開示1 本発明の高純度フェノール樹脂の製造方法は、フェノー
ル類とアルデヒド類との縮合物を減圧下150〜180
″Cまで加熱して脱水し、次いで常圧下15o−tso
℃で水洗し、この後減圧下ZOO−240℃虫で加熱し
て脱水することを特徴とするものであり、この構成によ
り上記目的を達成でさたものである。
[Disclosure 1 of the Invention The method for producing a high-purity phenolic resin of the present invention is to prepare a condensate of phenols and aldehydes at 150 to 180% under reduced pressure.
''C to dehydrate, then boil under normal pressure at 15o-tso.
It is characterized in that it is washed with water at a temperature of .degree. C. and then dehydrated by heating at a ZOO-240.degree.

本発明ではフェノール類とアルデヒド類とy>1g合物
とは、通常の重合反応、即ちフェノール類とアルデヒド
類を触媒の存在下で重合させることにより得られるすべ
てのものをいう、ここで、フェノール類とは、フェノー
ル、クレゾール、キシレノール、レゾルシン等の7二)
−ル性水酸基を有するものすべてであり、アルデヒド類
とはホルムアルデヒド、ベンズアルデヒド、パラホルム
アルデヒド る.又、触媒とは塩酸、し嗜う酸、硫酸等の7ボラツク
化反応触媒全般をいう.このようにして得たフェノール
類とアルデヒド類との縮合物を、まず減圧下(400 
− 600Torr)、150−180℃、好適には1
60℃まで加熱して30〜60分かけて脱水する。次い
で、常圧に戻して150〜180℃、好適には160℃
で約1時間かけて水洗する.水洗は縮合物と同量の蒸留
水で行う.この工程により水分と未反応のフェノール分
を共沸させて除去すると共に残存する触媒を除去する.
この場合、水と7xノールの共沸点は約90℃であるの
で、その温度以上に加熱すればよいが、長時間要するこ
とから150〜180℃で水洗する.尚、180℃を超
えると突沸する恐れがある.この後減圧下で200〜2
40℃、好適には210℃まで加熱して約1時間かけて
脱水する.減圧度は30〜60Torr程度である.こ
の工程により不純物を略完全に除去する.この後取り出
して低フリーフェノール樹脂が得られる。
In the present invention, the compound of phenol and aldehyde with y>1g refers to all compounds obtained by a normal polymerization reaction, that is, by polymerizing phenol and aldehyde in the presence of a catalyst. 72) Types include phenol, cresol, xylenol, resorcinol, etc.
Aldehydes include formaldehyde, benzaldehyde, and paraformaldehyde. In addition, the term "catalyst" refers to all catalysts for the 7-volatization reaction, such as hydrochloric acid, diluted acid, and sulfuric acid. The condensate of phenols and aldehydes thus obtained was first mixed under reduced pressure (400
- 600 Torr), 150-180°C, preferably 1
Heat to 60°C and dehydrate for 30 to 60 minutes. Then, the pressure is returned to normal pressure and the temperature is 150 to 180°C, preferably 160°C.
Wash with water for about 1 hour. Washing is done with the same amount of distilled water as the condensate. This step azeotropically removes water and unreacted phenol, as well as removing the remaining catalyst.
In this case, since the azeotropic point of water and 7xnol is about 90°C, it is sufficient to heat it above that temperature, but since it takes a long time, washing with water is carried out at 150-180°C. However, if the temperature exceeds 180°C, there is a risk of bumping. After this, under reduced pressure,
Heat to 40°C, preferably 210°C, and dehydrate for about 1 hour. The degree of pressure reduction is approximately 30 to 60 Torr. This process almost completely removes impurities. After this, it is taken out to obtain a low-free phenolic resin.

次に、本発明を実施例に基づいて具体的に説明する.以
下において%は重量%を示す。
Next, the present invention will be specifically explained based on examples. In the following, % indicates weight %.

(実施例1乃至3) 種々の割合でフェノールとホルマリンとじ中う酸を反応
釜に仕込み、還流温度で60分反応し、次に塩酸を加え
てさらに35分間縮合させる.冷水を多量に添加して反
応を停止し、30分間放置して分子量が500〜600
でそれぞれ7 I7 − フェノール含有量が9.4%
(実施例1)、12.7%(実施例2)、13.4%(
実施例3)の縮合物を調製した.この縮合物を減圧下(
600Torr)、160℃まで加熱して40分間かけ
て脱水し、次いで常圧下160℃で1時間かけて水洗し
、この後減圧下(40〜50Torr)、210℃まで
加熱して1時間かけて脱水してフェノール樹脂を得た.
水洗工程の前後及び最終的に得られたフェノール樹脂の
7リーフエノールの含有量を測定した(GPC分析によ
る)、結果を第1表に示す.尚、電気伝導度は5μs/
am以下であった。
(Examples 1 to 3) Phenol, formalin and ceric acid were charged into a reaction vessel in various ratios, reacted for 60 minutes at reflux temperature, then hydrochloric acid was added and condensed for an additional 35 minutes. Stop the reaction by adding a large amount of cold water, and leave it for 30 minutes until the molecular weight reaches 500-600.
respectively 7 I7 - phenol content is 9.4%
(Example 1), 12.7% (Example 2), 13.4% (
The condensate of Example 3) was prepared. This condensate was mixed under reduced pressure (
600 Torr), heated to 160°C for 40 minutes, then washed with water at 160°C under normal pressure for 1 hour, then heated to 210°C under reduced pressure (40 to 50 Torr), and dehydrated for 1 hour. A phenolic resin was obtained.
The content of 7-leaf enol in the phenolic resin before and after the water washing process and finally obtained was measured (by GPC analysis), and the results are shown in Table 1. In addition, the electrical conductivity is 5μs/
It was below am.

第1表 実施例1   9.4   5,8   0,4   
0.08実施例2   12.7   6.7   0
.14   熊r   3   13.4   8,2
   0.22  0.06【発明の効果1 本発明にあっては、フェノール類とアルデヒド類との縮
合物を減圧下150〜180”Cまで加熱して脱水し、
次いで常圧下150〜180’Cで水洗し、この後減圧
下200〜240℃まで加熱して脱水するので、脱水工
程における水洗により水分の7工ノール分が共沸して、
低フリーフェノールの高純度7エ/−ル樹脂を得ること
ができるものであり、又製造時間が短く、しかも比較的
低温で行うことができ、従来と比べて簡単な工程となる
ものである。
Table 1 Example 1 9.4 5,8 0,4
0.08 Example 2 12.7 6.7 0
.. 14 bear r 3 13.4 8,2
0.22 0.06 Effect of the invention 1 In the present invention, a condensate of phenols and aldehydes is dehydrated by heating to 150 to 180"C under reduced pressure,
Next, it is washed with water at 150 to 180'C under normal pressure, and then dehydrated by heating to 200 to 240°C under reduced pressure.
It is possible to obtain a high-purity 7 el resin with low free phenol content, and the production time is short and the process can be carried out at a relatively low temperature, making the process simpler than conventional methods.

代理人 弁理士 石 1)長 七 手続補正書(自発) 昭和61年5月2日Agent Patent Attorney Ishi 1) Choshichi Procedural amendment (voluntary) May 2, 1986

Claims (1)

【特許請求の範囲】[Claims] (1)フエノール類とアルデヒド類との縮合物を減圧下
150〜180℃まで加熱して脱水し、次いで常圧下1
50〜180℃で水洗し、この後減圧下200〜240
℃まで加熱して脱水することを特徴とする高純度フエノ
ール樹脂の製造方法。
(1) A condensate of phenols and aldehydes is heated to 150 to 180°C under reduced pressure to dehydrate it, and then 150°C under normal pressure.
Washed with water at 50-180°C, then heated at 200-240°C under reduced pressure.
A method for producing high-purity phenolic resin characterized by dehydration by heating to ℃.
JP5761786A 1986-03-14 1986-03-14 Production of high-purity phenolic resin Pending JPS62212409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5761786A JPS62212409A (en) 1986-03-14 1986-03-14 Production of high-purity phenolic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5761786A JPS62212409A (en) 1986-03-14 1986-03-14 Production of high-purity phenolic resin

Publications (1)

Publication Number Publication Date
JPS62212409A true JPS62212409A (en) 1987-09-18

Family

ID=13060837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5761786A Pending JPS62212409A (en) 1986-03-14 1986-03-14 Production of high-purity phenolic resin

Country Status (1)

Country Link
JP (1) JPS62212409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03149211A (en) * 1989-11-06 1991-06-25 Murata Mfg Co Ltd Production of electronic part sealing material
JPH06287261A (en) * 1993-04-06 1994-10-11 Kanebo Nsc Ltd Method for purifying novolak resin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03149211A (en) * 1989-11-06 1991-06-25 Murata Mfg Co Ltd Production of electronic part sealing material
JPH06287261A (en) * 1993-04-06 1994-10-11 Kanebo Nsc Ltd Method for purifying novolak resin

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