JPH047314A - Preparation of melamine resin and melamine resin molding material prepared from the resin - Google Patents
Preparation of melamine resin and melamine resin molding material prepared from the resinInfo
- Publication number
- JPH047314A JPH047314A JP10811890A JP10811890A JPH047314A JP H047314 A JPH047314 A JP H047314A JP 10811890 A JP10811890 A JP 10811890A JP 10811890 A JP10811890 A JP 10811890A JP H047314 A JPH047314 A JP H047314A
- Authority
- JP
- Japan
- Prior art keywords
- melamine resin
- melamine
- molding material
- resin
- alicyclic epoxy
- 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
- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 49
- 239000004640 Melamine resin Substances 0.000 title claims abstract description 38
- 239000012778 molding material Substances 0.000 title claims description 22
- 229920005989 resin Polymers 0.000 title abstract description 3
- 239000011347 resin Substances 0.000 title abstract description 3
- 238000002360 preparation method Methods 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 19
- 125000002723 alicyclic group Chemical group 0.000 claims abstract description 15
- 239000004593 Epoxy Substances 0.000 claims abstract description 14
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000000376 reactant Substances 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 13
- 239000007795 chemical reaction product Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 8
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000004594 Masterbatch (MB) Substances 0.000 description 5
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229940037312 stearamide Drugs 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000736772 Uria Species 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000004807 desolvation Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、メラミン樹脂の製造方法および、メラミン樹
脂成形材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing melamine resin and a melamine resin molding material.
メラミン樹脂成形材料を加熱加圧成形して硬化させた成
形品は、耐アーク性、耐トラツキング性、電気絶縁性、
耐燃性、表面硬度、耐溶剤性などに優れている。しかし
、電気製品の安全性の点から耐アーク性の一層の向上が
のぞまれている。Molded products made by heat-pressing and hardening melamine resin molding materials have arc resistance, tracking resistance, electrical insulation properties,
It has excellent flame resistance, surface hardness, and solvent resistance. However, from the viewpoint of the safety of electrical products, further improvement in arc resistance is desired.
本発明は、耐アーク性に優れたメラミン樹脂の成形品を
与えるメラミン樹脂の製造方法および、メラミン樹脂成
形材料を提供することにある。An object of the present invention is to provide a method for producing a melamine resin that provides a melamine resin molded article with excellent arc resistance, and a melamine resin molding material.
本発明者は、上記課題を解決するためにメラミン１００
重量部に脂環式エポキシシリコーン１〜５０重量部を反
応させ、次いでこの反応物にホルムアルデヒド２０〜５
０重量部を反応させることを特徴とするメラミン樹脂の
製造方法とこのメラミン樹脂を配合してなることを特徴
とするメラミン樹脂成形材料を提供することにある。In order to solve the above problems, the present inventor developed melamine 100
1 to 50 parts by weight of alicyclic epoxy silicone is reacted with 1 to 50 parts by weight of alicyclic epoxy silicone, and then 20 to 5 parts by weight of formaldehyde is added to the reaction product.
The object of the present invention is to provide a method for producing a melamine resin characterized by reacting 0 parts by weight, and a melamine resin molding material characterized by blending this melamine resin.
以下、この発明の詳細な説明する。The present invention will be explained in detail below.
本発明において脂環式エポキシシリコーンとは、末端に
エポキシ基を有する脂環式シリコーンを言う。In the present invention, the alicyclic epoxy silicone refers to an alicyclic silicone having an epoxy group at the end.
本願の製造方法の各成分の配合量は、メラミン１００重
量部（以下単に部と記述する）に対して脂環式エポキシ
シリコーン１〜５０部にその範囲を設定する必要がある
。脂環式エポキシシリコンの配合量が１未満であると脂
環式エポキシシリコーンによる変性が不十分で、得られ
るメラミン樹脂の耐アーク性を向上させる効果を十分に
得ることができず、またこの配合量が５０を越えると反
応系でのエポキシ基の量が多くなり過ぎてメラミンのゲ
ル化が生じ易くなり、メラミン樹脂が得られないからで
ある。The blending amount of each component in the manufacturing method of the present application needs to be within the range of 1 to 50 parts of alicyclic epoxy silicone per 100 parts by weight of melamine (hereinafter simply referred to as parts). If the blending amount of the alicyclic epoxy silicone is less than 1, the modification by the alicyclic epoxy silicone will be insufficient, and the effect of improving the arc resistance of the resulting melamine resin will not be sufficiently obtained, and this blend This is because if the amount exceeds 50, the amount of epoxy groups in the reaction system becomes too large, making it easy for melamine to gel, making it impossible to obtain a melamine resin.
ホルムアルデヒドを同様に２０〜５０部に限定するのは
、ホルムアルデヒドが２０部未満では、得られるメラミ
ン樹脂の硬化速度が遅く、またその成形品の強度も弱く
実用に適さず、またこの配合量が５０部を越して用いら
れるとゲル化が生じ易くなり、メラミン樹脂が得られな
いからである、こららの反応は、通常用いられる反応釜
をそのまま用いることができる。The reason why formaldehyde is similarly limited to 20 to 50 parts is that if the formaldehyde content is less than 20 parts, the resulting melamine resin will have a slow curing speed and the strength of the molded product will be weak, making it unsuitable for practical use. This is because gelation tends to occur if more than 50% of the melamine resin is used, and a melamine resin cannot be obtained.For these reactions, a commonly used reaction vessel can be used as is.
次に、製造方法におけるメラミン樹脂の合成反応は、ま
ずメラミンと脂環式エポキシシリコーンとの反応を７０
〜１００°Ｃの温度で２０〜１２０分間程度の条件でお
こない、次に、この反応物にホルムアルデヒドを、通常
はホルマリンを投入し、８０〜１００℃の温度で２０〜
１２０分間程度の条件でおこなう、これら一連の反応後
、２層に分離する反応溶液の下層のシラツブを取り出す
。Next, in the synthesis reaction of melamine resin in the manufacturing method, first, the reaction between melamine and alicyclic epoxy silicone is carried out for 70 minutes.
The reaction is carried out for about 20 to 120 minutes at a temperature of ~100°C, and then formaldehyde, usually formalin, is added to the reaction mixture, and the reaction is carried out at a temperature of 80 to 100°C for 20 to 120 minutes.
After a series of reactions, which are carried out for about 120 minutes, the lower layer of the reaction solution, which separates into two layers, is taken out.
このシラツブの樹脂分がメラミン樹脂である。The resin component of this shirabu is melamine resin.
このメラミン樹脂のシラツブより、メラミン樹脂成形材
料を製造方法する方法は、プラスチック材料講座８「ユ
リア・メラミン樹脂」日刊工業新聞社発行の７６〜８１
頁に記載された公知の条件でおこなうことができる。The method for manufacturing melamine resin molding materials from this melamine resin slag is described in Plastic Materials Course 8, "Uria Melamine Resin," 76-81 published by Nikkan Kogyo Shimbun.
It can be carried out under the known conditions described in the page.
また、前記シラツブから溶媒を脱溶媒することによって
脂環式エポキシシリコーンと反応し、さらに、ホルムア
ルデヒドと反応してできたメラミン樹脂を固型のメラミ
ン樹脂として調製することもできる。この脱溶媒には、
常温真空脱水法、真空加熱脱水法、スプレードライヤー
法、そしてＷｐＥ（！ｉｌｌ！ＩＩＮ発法）などを用い
ることができる。Furthermore, a solid melamine resin can be prepared by removing the solvent from the silica to react with an alicyclic epoxy silicone and further reacting with formaldehyde. This desolvation involves
A normal temperature vacuum dehydration method, a vacuum heating dehydration method, a spray dryer method, a WpE (!ill!IIN method), etc. can be used.
この固型のメラミン樹脂を用いた場合の、成形材料の製
造方法は、固型のメラミン樹脂を粉砕した後、充填材、
硬化剤、離型剤、顔料、可塑剤などを配合し、ボールミ
ルで約２〜２０時間流合することによって粉末成形材料
を得ることができる。この粉末成形材料を混線造粒機に
かけることによって、粒状の成形材料とすることもでき
る。When using this solid melamine resin, the method for manufacturing the molding material is to crush the solid melamine resin, then filler and
A powder molding material can be obtained by blending a curing agent, a mold release agent, a pigment, a plasticizer, etc., and blending the mixture in a ball mill for about 2 to 20 hours. This powder molding material can also be made into a granular molding material by applying it to a mixed wire granulator.
前記いずれの製造方法の成形材料も、圧縮成形トランス
ファー成形、射出成形などによってメラミン樹脂成形品
を形成することができる。The molding material produced by any of the above manufacturing methods can be used to form a melamine resin molded product by compression molding, transfer molding, injection molding, or the like.
前記の充填材、離型剤、硬化剤、顔料、可塑剤などにつ
いてもプラスチック材料講座８「ユリア・メラミン樹脂
」日刊工業新聞社発行の８４〜９０頁に記載された公知
の材料を用いることができる。For the above-mentioned fillers, mold release agents, curing agents, pigments, plasticizers, etc., the known materials described in Plastic Materials Course 8 "Uria Melamine Resin" published by Nikkan Kogyo Shimbun, pp. 84-90 can be used. can.
次に本発明を実施例と比較例によって具体的に説明する
。Next, the present invention will be specifically explained using Examples and Comparative Examples.
実施例 １
メラミン（口座化学工業）１７４０ｇ、ｊｌｆ末端脂環
式エポキシシリコーン（東しシリコーン、ＢＸ１６−８
５４） ８７ ｇ、水６００ ｇ、メタノール６００ｇ
を攪拌翼、還流管付きの３つロフラスコに仕込み、７７
部２℃で１時間加熱撹拌する。その後４０％ホルマリン
１０８８ｇを投入し、８５部２°Ｃで４５分加熱攪拌す
る。反応後１０分間静置すると、反応溶液は２層に分離
するので、下層のシラツブをニーグーに移し、攪拌しな
がらシートパルプ１０００ｇ、ステアリン酸亜鉛７．５
ｇ加え。Example 1 1740 g of melamine (Kaguchi Kagaku Kogyo), jlf-terminated alicyclic epoxy silicone (Toshi Silicone, BX16-8)
54) 87 g, water 600 g, methanol 600 g
into a three-loaf flask equipped with a stirring blade and a reflux tube, 77
Heat and stir at 2°C for 1 hour. Thereafter, 1088 g of 40% formalin was added, and 85 parts were heated and stirred at 2°C for 45 minutes. If the reaction solution is allowed to stand still for 10 minutes after the reaction, the reaction solution will separate into two layers, so transfer the lower layer of silica to a Nigu, and add 1000 g of sheet pulp and 7.5 g of zinc stearate while stirring.
Add g.
７０℃で４０分間解砕、混合する。このようにして得ら
れた濡れた含浸物を、９０″Ｃの乾燥機で３０分間、乾
燥し粗粉砕し、乾燥物を得る。Disintegrate and mix for 40 minutes at 70°C. The wet impregnated material thus obtained is dried in a dryer at 90''C for 30 minutes and coarsely ground to obtain a dried product.
この乾燥物を先にボールミルで１０時間粉砕しり後、１
０％の無水フタル酸のマスターバッチ９ｇ１ステアリン
酸亜鉛１２ｇ、ステアリン酸アマイド１．５ｇを配合し
、１時間粉砕混合すると粉末成形材料を得ることができ
る。This dried material was first ground in a ball mill for 10 hours, then 1
A powder molding material can be obtained by blending 9 g of a master batch of 0% phthalic anhydride, 12 g of zinc stearate, and 1.5 g of stearamide, and grinding and mixing for 1 hour.
この粉末成形材料を１００℃に加熱した連続混練追立機
にかけ溶融、押し固め、粉砕し、粒状の成形材料とする
。This powder molding material is melted, compacted, and pulverized in a continuous kneading machine heated to 100° C. to form a granular molding material.
実施例 ２
メラミン（口座化学工業）１７４０ｇ、両末端脂環式エ
ポキシシリコーン（東しシリコーン、ＢＸ１６−８５４
） ６００ ｇ 、水７８０ｇ、メタノール７８０ｇを
撹拌１翼、還流管付きの３つロフラスコに仕込み、７７
±２°Ｃで１時間加熱攪拌する。その後４０％ホルマリ
ン１６６０ｇを投入し、８５±２℃で１時間加熱攪拌す
る０反応後１０分間静置すると、反応溶液は２層に分離
するので、下層のシラツブをニーグーに移し、攪拌しな
がらシートパルプ１３３０ｇ、ステアリン酸亜鉛１０ｇ
加え。Example 2 1740 g of melamine (Kaguchi Kagaku Kogyo), alicyclic epoxy silicone (Toshi Silicone, BX16-854) at both ends
), 780 g of water, and 780 g of methanol were placed in a three-loaf flask equipped with one stirring blade and a reflux tube.
Heat and stir at ±2°C for 1 hour. Then, add 1660g of 40% formalin and heat and stir at 85±2℃ for 1 hour.After the reaction, the reaction solution will separate into two layers. 1330g pulp, 10g zinc stearate
Addition.
７０℃で４０分間解砕、混合する。このようにしてえら
れた濡れた含浸物を、９０℃の乾燥機で３０分間、乾燥
し粗粉砕し乾燥物を得る。Disintegrate and mix for 40 minutes at 70°C. The wet impregnated material thus obtained is dried in a dryer at 90° C. for 30 minutes and coarsely pulverized to obtain a dried product.
この乾燥物を先にボールミルで１０時間粉砕した後、１
０％の無水フタル酸のマスターバッチ１２ｇ１ステアリ
ン酸亜鉛１６ｇ、ステアリン酸アマイド２ｇを配合し、
以降は実施例１と同様にし、粒状の成形材料とする。This dried material was first ground in a ball mill for 10 hours, and then
12g masterbatch of 0% phthalic anhydride, 16g zinc stearate, 2g stearamide,
The subsequent steps were carried out in the same manner as in Example 1 to obtain a granular molding material.
実施例 ３
メラミン（口座化学工業）１７４０ｇ、両末端脂環式エ
ポキシシリコーン（東しシリコーン、ＢＸ１６−８５４
） ８７０ ｇ 、水９００ ｇ、メタノール９００ｇ
を攪拌翼、還流管付きの３つロフラスコに仕込み、７７
±２°Ｃで７５分加熱攪拌する。その後４０％ホルマリ
ン９００ｇを投入し、８５±２℃で１時間加熱攪拌する
０反応後１０分間静置すると、反応溶液は２層に分離す
るので、下層のシラツブをニーグーに移し、攪拌しなが
らシートパルプ１５５５ｇ、ステアリン酸亜鉛１１．５
ｇ加え７０℃で４０分間解砕、混合する。このようにし
てえられた濡れた混合品を、９０℃の乾燥機で４０分間
、乾燥し粗粉砕し乾燥物を得る。Example 3 1740 g of melamine (Kaguchi Kagaku Kogyo), alicyclic epoxy silicone at both ends (Toshi Silicone, BX16-854)
) 870 g, water 900 g, methanol 900 g
into a three-loaf flask equipped with a stirring blade and a reflux tube, 77
Heat and stir at ±2°C for 75 minutes. Then, add 900g of 40% formalin and heat and stir at 85±2℃ for 1 hour.After the reaction, the reaction solution will separate into two layers. Pulp 1555g, zinc stearate 11.5g
g, and crush and mix at 70°C for 40 minutes. The wet mixture thus obtained is dried in a dryer at 90° C. for 40 minutes and coarsely ground to obtain a dried product.
この乾燥物を先にボールミルで１０時間粉砕した後、１
０％の無水フタル酸のマスターバッチ１４ｇ、ステアリ
ン酸亜鉛１８ｇ、ステアリン酸アマイド２ｇを配合し、
以降は実施例１と同様にし、粒状の成形材料とする。This dried material was first ground in a ball mill for 10 hours, and then
Contains 14g of 0% phthalic anhydride masterbatch, 18g of zinc stearate, and 2g of stearamide.
The subsequent steps were carried out in the same manner as in Example 1 to obtain a granular molding material.
比較例 １
メラミン（口座化学工業）２５２０ｇと３７％ホルマリ
ン２６００ｇをＮａＯＨ触媒下で反応温度８５°Ｃ１反
応時間６０分間で反応させることにより、メラミン樹脂
のシラツブを得た。このメラミン樹脂シラツブを用い、
このシラツブ３０００ｇに対してシートパルプ７２０ｇ
ステアリン酸亜鉛９ｇ、硬化剤として１０％の無水フタ
ル酸マスターバッチ１０ｇを加えて、・実施例１と同様
にし乾燥物を得る。Comparative Example 1 A melamine resin slag was obtained by reacting 2,520 g of melamine (Kaguchi Kagaku Kogyo) and 2,600 g of 37% formalin under a NaOH catalyst at a reaction temperature of 85° C. and a reaction time of 60 minutes. Using this melamine resin sill,
720g of sheet pulp for 3000g of this Shirub
Add 9 g of zinc stearate and 10 g of a 10% phthalic anhydride masterbatch as a hardening agent, and proceed in the same manner as in Example 1 to obtain a dried product.
この乾燥物３０００ｇを先にボールミルで１２時間粉砕
した後、１０％の無水フタル酸のマスターバッチ１２ｇ
、ステアリン酸亜鉛１６ｇ、ステアリン酸アマイド２ｇ
を配合し、実施例１と同様にし、粒状の成形材料とする
。3000g of this dry material was first ground in a ball mill for 12 hours, and then 12g of a 10% phthalic anhydride masterbatch was prepared.
, zinc stearate 16g, stearamide 2g
were blended in the same manner as in Example 1 to obtain a granular molding material.
以上で得た各成形材料を用いてＪ Ｉ Ｓ −Ｋ６９１
１に準拠して３７トンプレス成形機で金型温度１６５℃
、３分間の条件で成形し、テストピースを作成した。こ
のテストピースについてＪ Ｉ Ｓ−に６９１１に準拠
して耐アーク性、成形収縮率、成形後収縮率（１１０℃
、１６８時間後）をそれぞれ測定し、これらの結果を第
１表に示した。Using each molding material obtained above, JIS-K691
1, the mold temperature is 165℃ using a 37-ton press molding machine.
A test piece was prepared by molding for 3 minutes. Regarding this test piece, arc resistance, molding shrinkage rate, post-molding shrinkage rate (110℃
, 168 hours later), and the results are shown in Table 1.
第１表から本発明の製造方法によって合成されたメラミ
ン樹脂を用いたメラミン樹脂成形材料で形成された実施
例１〜３の成形品は、比較例１の従来のメラミン樹脂成
形材料に比べ耐アーク性に優れていることが確認できた
。Table 1 shows that the molded products of Examples 1 to 3 formed with melamine resin molding materials using the melamine resin synthesized by the production method of the present invention have arc resistance compared to the conventional melamine resin molding material of Comparative Example 1. It was confirmed that it has excellent properties.
また、実施例１〜３の成形品は、比較例１の成形品に比
べ成形収縮率、成形後収縮率（１１０°Ｃ１６８時間後
）が小さく寸法安定性に優れていることも確認できた。It was also confirmed that the molded products of Examples 1 to 3 had smaller molding shrinkage and post-molding shrinkage (after 168 hours at 110° C.) than the molded product of Comparative Example 1, and had excellent dimensional stability.
第１表
（以 下 余 白）
〔発明の効果〕
本発明の製造方法で作られるメラミン樹脂を用いたメラ
ミン樹脂成形材料によって、耐アーク性に優れたメラミ
ン樹脂成形品を得ることができるのである。Table 1 (Margins below) [Effects of the invention] By using the melamine resin molding material using the melamine resin produced by the production method of the present invention, it is possible to obtain a melamine resin molded product with excellent arc resistance. .
特許出願人 松下電工株式会社Patent applicant Matsushita Electric Works Co., Ltd.
Claims (2)
ン１〜５０重量部を反応させ、次いでこの反応物にホル
ムアルデヒド２０〜５０重量部を反応させることを特徴
とするメラミン樹脂の製造方法。(1) A method for producing a melamine resin, which comprises reacting 100 parts by weight of melamine with 1 to 50 parts by weight of alicyclic epoxy silicone, and then reacting this reactant with 20 to 50 parts by weight of formaldehyde.
るメラミン樹脂成形材料。(2) A melamine resin molding material comprising the above-mentioned melamine resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10811890A JP2893845B2 (en) | 1990-04-24 | 1990-04-24 | Method for producing melamine resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10811890A JP2893845B2 (en) | 1990-04-24 | 1990-04-24 | Method for producing melamine resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH047314A true JPH047314A (en) | 1992-01-10 |
| JP2893845B2 JP2893845B2 (en) | 1999-05-24 |
Family
ID=14476376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10811890A Expired - Fee Related JP2893845B2 (en) | 1990-04-24 | 1990-04-24 | Method for producing melamine resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2893845B2 (en) |
-
1990
- 1990-04-24 JP JP10811890A patent/JP2893845B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2893845B2 (en) | 1999-05-24 |
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