JPH03287664A - Room temperature curable organopolysiloxane composition and curing product prepared therefrom - Google Patents

Room temperature curable organopolysiloxane composition and curing product prepared therefrom

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Publication number
JPH03287664A
JPH03287664A JP9107890A JP9107890A JPH03287664A JP H03287664 A JPH03287664 A JP H03287664A JP 9107890 A JP9107890 A JP 9107890A JP 9107890 A JP9107890 A JP 9107890A JP H03287664 A JPH03287664 A JP H03287664A
Authority
JP
Japan
Prior art keywords
parts
group
groups
curing
curable organopolysiloxane
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
JP9107890A
Other languages
Japanese (ja)
Inventor
Takashi Miyoshi
敬 三好
Masatoshi Arai
荒井 正俊
Yoshio Inoue
井上 凱夫
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical 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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP9107890A priority Critical patent/JPH03287664A/en
Publication of JPH03287664A publication Critical patent/JPH03287664A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prepare the title compsn. which hardly causes contact trouble and gives a curing product showing no change in rubber properties with time by compounding a specific diorganopolysiloxane, a specific organosilicon compd. or a partially hydrolyzed condensate thereof, and a curing catalyst. CONSTITUTION:100 pts.wt. diorganopolysiloxane having silanol or alkoxy groups at both molecular ends, 1-20 pts.wt. organosilicon compd. of the formula [wherein R<1> is a 1-6C (substd.) monovalent hydrocarbon group; and R<2> is a 1-4C (substd.) monovalent hydrocarbon group] and/or a partially hydrolyzed condensate thereof, and an effective amt., usually 0.01-10 pts.wt., of a curing catalyst are compounded as the essential components to give the title compsn.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、新規な脱アルコール型室温硬化性オルガノポ
リシロキサン組成物及びその硬化物に関し、特に電気部
品や電子部品等の接着固定やコーティング、ボッティン
グなどの用途に使用した時に接点障害を起こすことのな
い新規な脱アルコール型室温硬化性オルガノポリシロキ
サン組成物及びその硬化物に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a novel dealcoholization type room temperature curable organopolysiloxane composition and its cured product, and is particularly useful for adhesive fixing and coating of electrical parts and electronic parts, etc. This invention relates to a novel dealcoholization type room temperature curable organopolysiloxane composition that does not cause contact failure when used in applications such as botting, and a cured product thereof.

(従来の技術) 脱アルコール型室温硬化性オルガノポリシロキサン組成
物は一般には一液性であり、チューブ又はカートリッジ
から押し出すことにより空気中の湿気で硬化するので使
い昌いこと、又、電気及び電子部品等を腐食させない等
の利点が有るため電気及び電子業界で汎用されている。
(Prior Art) Dealcoholization-type, room-temperature-curing organopolysiloxane compositions are generally one-component, and when extruded from a tube or cartridge, cure with moisture in the air, making them versatile and useful in electrical and electronic applications. It is widely used in the electrical and electronic industries because it has the advantage of not corroding parts, etc.

ところで、近年、電気製品の小型化指向による電子部品
の小型化が顕著であり、係る電子部品の小型化に伴って
マイクロモーターやリレー回路のトラブルが発生する機
会が増大している。そして揮発性シリコーンがこれ等の
トラブルの原因の一つになっていると考えられている。
Incidentally, in recent years, there has been a remarkable trend toward miniaturization of electronic components due to the trend toward miniaturization of electrical products, and the chances of trouble occurring in micromotors and relay circuits are increasing with the miniaturization of such electronic components. It is believed that volatile silicone is one of the causes of these troubles.

このような揮発性シリコーンに起因する接点障害を防止
するために、シリコーンポリマー中に存在する揮発性低
分子シロキサン(環状ジメチルシロキサンで20量体ま
で)を予め除去するという対策を取ることは、工業的に
多少コストアップとなる点を除けば比較的容品に行うこ
とができる。
In order to prevent such contact failure caused by volatile silicone, it is important to take measures to remove volatile low-molecular-weight siloxane (up to 20-mer cyclic dimethylsiloxane) present in silicone polymers in advance. It can be done relatively cheaply, except for the fact that it increases the cost a little.

しかしながら、従来の脱アルコール型室温硬化性オルガ
ノポリシロキサン組成物には、架橋剤として、メチルト
リメトキシシランで代表される低分子の有機珪素化合物
が混合されているために、シリコーンポリマー中の低分
子シロキサンをいくら完全に除去しても、空気中に押し
出されて湿気により硬化する過程で低分子の架橋剤が空
気中に蒸発し、これがマイクロモーターやリレー回路等
の電子部品に付着して接点障害を引き起こすという欠点
があった。
However, conventional dealcoholization-type room-temperature-curable organopolysiloxane compositions contain low-molecular organosilicon compounds such as methyltrimethoxysilane as crosslinking agents; No matter how completely siloxane is removed, the low-molecular crosslinking agent evaporates into the air during the process of being extruded into the air and hardening due to moisture, and this adheres to electronic components such as micro motors and relay circuits, causing contact failure. It had the disadvantage of causing

従ってシリコーンポリマー中に存在する揮発性低分子シ
ロキサンを予め除去するという上記の対策は抜本的な対
策とはなり得ないものであった。
Therefore, the above-mentioned measure of previously removing volatile low-molecular-weight siloxane present in the silicone polymer could not be a drastic measure.

(発明が解決しようとする課題) そこで、例えば比較的蒸発しにくいフェニルトリメトキ
シシランなどを架橋剤として接点障害を防止する方法も
考えられるが、フェニルトリメトキシシランを架橋剤と
すると室温での硬化性が遅く実用的でない上透明な硬化
物が得られない等の問題が生ずる。又、硬化を促進する
為に硬化触媒を通常使用する量より多量に使用すると、
保存性が悪くなるのみならず硬化後のゴムの耐熱性、耐
候性、耐水性等が悪化するという欠点があった。
(Problem to be solved by the invention) Therefore, it is possible to consider a method of preventing contact failure by using, for example, a crosslinking agent such as phenyltrimethoxysilane, which is relatively difficult to evaporate, but if phenyltrimethoxysilane is used as a crosslinking agent, it will harden at room temperature. Problems arise such as slow cure, impractical, and inability to obtain a transparent cured product. Also, if a larger amount of curing catalyst is used than normally used to accelerate curing,
This has the disadvantage that not only the storage stability becomes poor, but also the heat resistance, weather resistance, water resistance, etc. of the cured rubber deteriorate.

本発明者等は上記の欠点を解決すべく鋭意検討した結果
、ベースポリマーとして分子鎖両末端にシラノール基又
はアルコキシ基を有するジオルガノポリシロキサンを選
択すると共に、比較的揮発し難い上、上記ベースポリマ
ーと速やかに反応し得る架橋剤として、R’3S iO
31(OR” )3で示される有機珪素化合物を組合せ
た場合には前記諸問題を解決することができることを見
い出し本発明を完成させた。
As a result of intensive studies to solve the above-mentioned drawbacks, the present inventors selected a diorganopolysiloxane having silanol groups or alkoxy groups at both ends of the molecular chain as the base polymer. As a crosslinking agent that can quickly react with the polymer, R'3S iO
The present invention was completed by discovering that the above-mentioned problems can be solved by combining the organosilicon compounds represented by 31(OR'')3.

従って本発明の第1の目的は、電気部品や電子部品の接
着固定やコーティング、ボッティング等の用途に使用し
ても接点障害を引き越すことのない室温硬化性オルガノ
ポリシロキサン組成物及びその硬化物を提供することに
ある。
Therefore, the first object of the present invention is to provide a room-temperature-curable organopolysiloxane composition that does not cause contact failure even when used for adhesive fixing, coating, and botting of electrical and electronic components, and its curing. It's about providing things.

本発明の第2の目的は、硬化反応が迅速に進行すると共
に硬化後のゴム物性に経時変化が生ずることがなく、電
気部品や電子部品に使用するに適した室温硬化性オルガ
ノポリシロキサン組成物及びその硬化物を提供すること
にある。
A second object of the present invention is to provide a room-temperature-curable organopolysiloxane composition in which the curing reaction proceeds rapidly and the physical properties of the rubber do not change over time after curing, and which is suitable for use in electrical and electronic components. and to provide a cured product thereof.

(課題を解決するための手段) 本発明の上記の諸口的は、 ■分子鎖両末端にシラノール基又はアルコキシ基を有す
るジオルガノポリシロキサン 100重量部、 ■一般式R’sS i O3i  (OR” )コで示
される有機珪素化合物及び/又はその部分加水分%f縮
合物              1〜20重量部並び
に ■有効量の硬化触媒 を主成分とする室温硬化性オルガノポリシロキサン組成
物及びその硬化物により達成された。
(Means for Solving the Problems) The above aspects of the present invention are as follows: (100 parts by weight of diorganopolysiloxane having a silanol group or alkoxy group at both ends of the molecular chain; (2) general formula R'sS i O3i (OR) ) Achieved by a room-temperature-curable organopolysiloxane composition containing 1 to 20 parts by weight of an organosilicon compound represented by () and/or its partially hydrolyzed %f condensate, and (1) an effective amount of a curing catalyst, and a cured product thereof. It was done.

上記■成分で使用することのできる分子鎖両末端がシラ
ノール基で封鎖されたオルガノポリシロキサンは、一般
式HO(R’ R’ S io)、Hで表される0式中
R3及びR4は、メチル基、エチル基、プロピル基、ブ
チル基等のアルキル基、ビニル基、アリル基などのアル
ケニル基、フェニル基、トリル基等のアリール基、シク
ロヘキシル基、又はこれらの基の炭素原子に結合した水
素原子の一部又は全部をハロゲン原子、シアノ基等で置
換したクロロメチル基、シアノエチル基、3.3゜3−
トリフルオロプロピル基等の置換アルキル基などから選
択される同種若しくは異種の非置換又は置換の1価炭化
水素基を表し、特に炭素数が1〜8のものが好ましい0
mは5以上の整数である。
The organopolysiloxane in which both ends of the molecular chain are blocked with silanol groups that can be used in the component (1) above is represented by the general formula HO (R'R' S io), H in which R3 and R4 are: Alkyl groups such as methyl, ethyl, propyl and butyl groups, alkenyl groups such as vinyl and allyl groups, aryl groups such as phenyl and tolyl groups, cyclohexyl groups, or hydrogen bonded to carbon atoms of these groups. Chloromethyl group, cyanoethyl group, with some or all atoms substituted with halogen atoms, cyano groups, etc., 3.3゜3-
Represents the same or different unsubstituted or substituted monovalent hydrocarbon groups selected from substituted alkyl groups such as trifluoropropyl groups, and those having 1 to 8 carbon atoms are particularly preferred.
m is an integer of 5 or more.

上記オルガノポリシロキサンの25°Cにおける粘度は
25〜500,000cstの範囲、好ましくは、1.
000〜100,0OOcstである。
The organopolysiloxane has a viscosity at 25°C ranging from 25 to 500,000 cst, preferably 1.
000 to 100,0OOcst.

又、分子鎖末端がアルコキシ基で封鎖されたオルガノポ
リシロキサンとしては、−a式%式% で表されるものを挙げることができる。ここでR1は前
記したR3 、R4と同様の炭素数1〜6の置換又は非
置換の1価炭化水素基を表し、R3及びR4は前記した
分子鎖両末端がシラノール基で封鎖されたオルガノポリ
シロキサンのものと同じである。Xはメトキシ基、エト
キシ基、プロポキシ基、イソプロポキシ基、ブトキシ基
、メトキシエトキシ基、エトキシエトキシ基等の非置換
又は置換の低級アルコキシ基を表し、aは0又は1を表
す、又、本オルガノポリシロキサンの粘度は、前記シラ
ノール末端オルガノポリシロキサンの場合と同様、25
°Cにおいて25〜500,000cst、好ましくは
1,000〜100,0OOcstの範囲がよい。
Further, examples of organopolysiloxanes whose molecular chain terminals are capped with alkoxy groups include those represented by -a formula % formula %. Here, R1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 6 carbon atoms similar to the above-mentioned R3 and R4, and R3 and R4 are the above-mentioned organopolymer in which both ends of the molecular chain are blocked with silanol groups. Same as siloxane. X represents an unsubstituted or substituted lower alkoxy group such as a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, a butoxy group, a methoxyethoxy group, an ethoxyethoxy group, and a represents 0 or 1; The viscosity of the polysiloxane is 25% as in the case of the silanol-terminated organopolysiloxane.
The range is 25 to 500,000 cst, preferably 1,000 to 100,000 cst at °C.

本発明の■成分である、一般式 R’、S i O3i (OR”)’で示される有機珪
素化合物(ここで、R1は、前記■成分の場合と同じで
あり炭素数1〜6の置換又は非置換の一価炭化水素基を
表す。R2はメチル基、エチル基、プロピル基、イソプ
ロピル基、ブチル基、メトキシエチル基、エトキシエチ
ル基等の炭素数1〜4の、非置換又は置換のアルキル基
などの一価炭化水素基を表す、)は本発明の特徴をなす
ものであり、具体的には、 (CHs)s S i O3i  (OCHs:h、(
CH2)!  (CHt =CH)S i O3i  
(OCHs)s、(CHa)z Chis S i O
3i  (OCH3)+、CHs  (CaHs)g 
S i O3i  (OCHs)s、(CHs)z(C
Fs Cz Ha ) S i O3i  (QC)(
s)s及び、これらの化合物のメトキシ基をエトキシ基
、プロポキシ基、イソプロポキシ基、ブトキシ基、メト
キシエトキシ基、エトキシエトキシ基等の他のアルコキ
シ基に変えたものが例示される。
The organosilicon compound represented by the general formula R', S i O3i (OR'')', which is the component (1) of the present invention (where R1 is the same as in the case of the component (1) above, and is a substituted compound having 1 to 6 carbon atoms). or represents an unsubstituted monovalent hydrocarbon group.R2 represents an unsubstituted or substituted monovalent hydrocarbon group having 1 to 4 carbon atoms such as a methyl group, ethyl group, propyl group, isopropyl group, butyl group, methoxyethyl group, or ethoxyethyl group. ) representing a monovalent hydrocarbon group such as an alkyl group is a feature of the present invention, and specifically, (CHs)s S i O3i (OCHs:h, (
CH2)! (CHt=CH)S i O3i
(OCHs)s, (CHa)z Chis S i O
3i (OCH3)+, CHs (CaHs)g
S i O3i (OCHs)s, (CHs)z(C
Fs Cz Ha ) S i O3i (QC) (
Examples include s) s and those obtained by changing the methoxy group of these compounds to other alkoxy groups such as ethoxy group, propoxy group, isopropoxy group, butoxy group, methoxyethoxy group, and ethoxyethoxy group.

本発明の■成分である触媒としては、ナフテン酸銀、カ
プリル酸銀、オレイン酸銀のような錫カルボン酸塩、ジ
ブチル錫ジアセテート、ジブチル錫ジオクテート、ジプ
チル錫ジラウレート、ジブチル錫ジオレート、ジフェニ
ル錫ジアセテート、ジブチル錫オキサイド、ジブチル錫
ジメトキシド、ジブチルビス(トリエトキシシロキシ)
8、ジプチル錫ベンジルマレートなどの錫化合物や、テ
トライソプロポキシチタン、テトラ−n−ブトキシチタ
ン、テトラキス(2−エチルヘキソキシ)チタン、ジプ
ロポキシビス(アセチルアセトナート)チタン、チタニ
ウムイソプロボキシオクチレングリコール等のチタン酸
エステル又はチタンキレート化合物等やテトラメチルグ
アニジルプロピルトリメトキシシラン、テトラメチルグ
アニジルプロビルジメトキシシラン、テトラメチルグア
ニジルプロピルトリス(トリメチルシロキシ)シラン等
のグアニジル基含有シラン及びその部分加水分解物やグ
アニジル基含有シロキサンが用いられる。
The catalysts that are component (1) of the present invention include tin carboxylates such as silver naphthenate, silver caprylate, and silver oleate; Acetate, dibutyltin oxide, dibutyltin dimethoxide, dibutylbis(triethoxysiloxy)
8. Tin compounds such as diptyltin benzyl maleate, tetraisopropoxytitanium, tetra-n-butoxytitanium, tetrakis(2-ethylhexoxy)titanium, dipropoxybis(acetylacetonato)titanium, titanium isoproboxyoctylene glycol titanate esters or titanium chelate compounds, etc., guanidyl group-containing silanes such as tetramethylguanidylpropyltrimethoxysilane, tetramethylguanidylpropyldimethoxysilane, tetramethylguanidylpropyltris(trimethylsiloxy)silane, etc. Partial hydrolysates thereof and guanidyl group-containing siloxanes are used.

この触媒は本発明の室温硬化性シリコーン組成物の硬化
を促進するためのものであり、触媒作用を発揮させるた
めの有効量を用いることにより本発明の組成物を硬化せ
しめてゴムとすることができるが、通常は、硬化を促進
する為に■成分100重量部に対して0.01〜10重
量部、好ましくは0.1〜2重量部の範囲で使用される
This catalyst is for accelerating the curing of the room temperature curable silicone composition of the present invention, and by using an effective amount to exhibit catalytic action, the composition of the present invention can be cured into a rubber. However, in order to accelerate curing, it is usually used in an amount of 0.01 to 10 parts by weight, preferably 0.1 to 2 parts by weight, per 100 parts by weight of component (1).

又、本発明の組成物には、補強又は増量などを目的とし
て必要に応じ充填剤を配合しても良い。
Further, fillers may be added to the composition of the present invention for the purpose of reinforcing or increasing the amount, if necessary.

充填剤は、例えば、微粉末シリカ、フユームドシリカ、
沈隨シリカ、ケイソウ土;酸化鉄、酸化亜鉛、酸化チタ
ン等の金属酸化物、或いは、これらの表面をシラン等で
疎水化処理をしたもの;炭酸カルシウム、炭酸マグネシ
ウム、炭酸亜鉛等の金属炭酸塩;アスベスト、ガラス繊
維、カーボンブランク、微粉マイカ、溶融シリカ粉末等
の公知のものの中から適宜選択して使用することができ
る。
Fillers include, for example, finely powdered silica, fumed silica,
Precipitated silica, diatomaceous earth; Metal oxides such as iron oxide, zinc oxide, titanium oxide, etc., or those whose surfaces have been hydrophobized with silane, etc.; Metal carbonates such as calcium carbonate, magnesium carbonate, zinc carbonate, etc. ; It can be appropriately selected from known materials such as asbestos, glass fiber, carbon blank, finely divided mica, and fused silica powder.

更に、必要に応じてポリエチレングリコール及びその誘
導体などのチクソトロピー性付与側、顔料、染料、老化
防止剤、酸化防止剤、帯電防止剤、酸化アンチモンや塩
化パラフィンなどの難燃剤、窒化ホウ素や酸化アルミニ
ウム等の熱伝導性改良剤等を加えることも任意であり、
更に接着性付与剤としてアミノ基、エポキシ基、メルカ
プト基などの反応性有Il基を有する有機珪素化合物(
所謂、シランカップリング剤)など、従来公知の各種添
加剤を混合してもよい。
Furthermore, if necessary, thixotropic property imparting agents such as polyethylene glycol and its derivatives, pigments, dyes, anti-aging agents, antioxidants, antistatic agents, flame retardants such as antimony oxide and chlorinated paraffin, boron nitride and aluminum oxide, etc. It is also optional to add a thermal conductivity improver, etc.
Furthermore, organic silicon compounds having reactive Il groups such as amino groups, epoxy groups, and mercapto groups (
Various conventionally known additives such as a so-called silane coupling agent may be mixed.

本発明のシリコーン組成物を基体に塗布する際には、使
用し島さの観点からトルエン、キシレン、石油エーテル
などの炭化水素系溶剤やケトン類、エステル類などの溶
剤で希釈しても良い、又、更に可塑剤、タレ防止剤、公
知の防汚剤、防腐剤、殺菌剤、防黴剤等を配合すること
は何ら差し支えない。
When applying the silicone composition of the present invention to a substrate, it may be diluted with a hydrocarbon solvent such as toluene, xylene, or petroleum ether, or a solvent such as ketones or esters from the viewpoint of insulating properties. Furthermore, there is no problem in adding plasticizers, anti-sagging agents, known antifouling agents, preservatives, bactericidal agents, antifungal agents, and the like.

(発明の効果) 本発明の室温硬化性オルガノポリシロキサン組成物は、
架橋剤として、比較的揮発し難い上ベースとなるジオル
ガノポリシロキサンとの相溶性が良く、硬化反応も速や
かに進行する有機珪素化合物を使用するので、従来問題
となっていた接点障害を引き起こし難い上、保存性、硬
化後のゴムの耐熱性、耐候性、耐水性等も十分である。
(Effect of the invention) The room temperature curable organopolysiloxane composition of the present invention has the following properties:
As the crosslinking agent, we use an organosilicon compound that is relatively difficult to volatilize, has good compatibility with the base diorganopolysiloxane, and has a rapid curing reaction, so it is unlikely to cause contact failure, which has been a problem in the past. Moreover, the storage stability and the heat resistance, weather resistance, and water resistance of the rubber after curing are also sufficient.

(実施例) 以下、本発明を実施例によって更に詳述するが、本発明
はこれによって限定されるものではない。
(Examples) Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto.

合成例1゜ 温度計、冷却器及び攪拌装置を備えた反応容器にメチル
ジフェニルシラノール214部とテトラメトキシシラン
152.1部(モル比で1:1)を仕込み、水酸化カル
シウム0.5部を加えて8時間還流温度で反応させた。
Synthesis Example 1 214 parts of methyldiphenylsilanol and 152.1 parts of tetramethoxysilane (1:1 molar ratio) were charged into a reaction vessel equipped with a thermometer, a condenser, and a stirring device, and 0.5 part of calcium hydroxide was added. In addition, the mixture was reacted at reflux temperature for 8 hours.

反応後蒸留することにより、沸点161−164°C/
3mmHgを有する1−メチル−1,1−ジフェニル−
3,3゜3−トリメトキシジシロキサン(以下ΦTMと
略記する)を単離収率92%で得た。
By distilling after the reaction, the boiling point is 161-164°C/
1-methyl-1,1-diphenyl- with 3 mmHg
3,3°3-trimethoxydisiloxane (hereinafter abbreviated as ΦTM) was obtained in an isolated yield of 92%.

合成例2゜ 合成例1で使用した反応装置と同様な反応装置にトリメ
チルシラノール720部とテトラメトキシシラン121
6.8部(モル比で1:1)を仕込み、塩化カルシウム
5部を加えて8時間還流下で反応させた。得られた反応
物を蒸留することにより、沸点150−152°C(常
圧)を有する1゜1.1−トリメチル−3,3,3−)
リメトキシジシロキサン(以下MTMと略記する)を単
離収率94%で得た。
Synthesis Example 2゜720 parts of trimethylsilanol and 121 parts of tetramethoxysilane were placed in a reactor similar to that used in Synthesis Example 1.
6.8 parts (molar ratio: 1:1) were charged, 5 parts of calcium chloride was added, and the mixture was reacted under reflux for 8 hours. By distilling the obtained reaction product, 1°1.1-trimethyl-3,3,3-) having a boiling point of 150-152°C (normal pressure)
Rimethoxydisiloxane (hereinafter abbreviated as MTM) was obtained with an isolated yield of 94%.

合成例3゜ 合成例1で使用した反応装置と同様な反応装置にビニル
ジメチルシラノール306部とテトラメトキシシラン4
56.6(モル比で1:1)を仕込み、塩化カルシウム
5部を加えて8時間還流下で反応させた。得られた反応
物を蒸留することにより、沸点80.5℃/38mmH
gを有する1−ビニル−1,1−ジメチル−3,3,3
−)リメトキシジシロキサン(以下、VTMと略記する
)を単離収率87%で得た。
Synthesis Example 3 306 parts of vinyldimethylsilanol and 4 parts of tetramethoxysilane were placed in a reaction apparatus similar to that used in Synthesis Example 1.
56.6 (molar ratio: 1:1), 5 parts of calcium chloride was added, and the mixture was reacted under reflux for 8 hours. By distilling the obtained reaction product, the boiling point was 80.5°C/38mmH.
1-vinyl-1,1-dimethyl-3,3,3 with g
-) Rimethoxydisiloxane (hereinafter abbreviated as VTM) was obtained with an isolated yield of 87%.

実施例1゜ 分子末端がシラノール基で封鎖されていると共に、低分
子シロキサン(20量体以下の環状ジメチルポリシロキ
サン)含有率が0.2%で25℃における粘度が5.0
00cstのポリジメチルシロキサンポリマー100部
に、シリカフィラー10部を添加混合してベースとした
。このベース100部に対して、1−メチル−1,1−
ジフェニル−3,3,3−トリメトキシジシロキサン(
07M)を3部とジメチルジメトキシ錫0. 1部を添
加し均一に撹拌混合した。
Example 1 The molecular terminals are blocked with silanol groups, the content of low molecular weight siloxane (cyclic dimethylpolysiloxane with less than 20 polymers) is 0.2%, and the viscosity at 25°C is 5.0.
A base was prepared by adding and mixing 10 parts of silica filler to 100 parts of 00cst polydimethylsiloxane polymer. For 100 parts of this base, 1-methyl-1,1-
Diphenyl-3,3,3-trimethoxydisiloxane (
0.07M) and 3 parts of dimethyldimethoxytin. 1 part was added and stirred and mixed uniformly.

このようにして得た室温硬化性オルガノポリシロキサン
組成物(RTV)を2mm厚さのシート状に成型し、2
0″C・55%RHて7日間硬化させた後硬化物の物性
を測定した。
The thus obtained room temperature curable organopolysiloxane composition (RTV) was molded into a sheet with a thickness of 2 mm.
After curing for 7 days at 0''C and 55% RH, the physical properties of the cured product were measured.

その結果を第1表に示す。The results are shown in Table 1.

第  1  表 又、このRTVを体積51の容器に100部入れて第1
図に示した可変定電圧電源(2,0V−150mA)に
よるマイクロモーター(M)の実装試験を行い、接点不
良発生の評価を行った。評価は、モーターの波形をシン
クロスコープを用いて観察しモーター波形が異常になっ
た時点で接点不良になったものとして行った。その結果
を第2表に示す。
Table 1 Also, put 100 parts of this RTV into a container with a volume of 51 and
A mounting test was conducted on the micromotor (M) using the variable constant voltage power supply (2.0V-150mA) shown in the figure, and the occurrence of contact failure was evaluated. The evaluation was performed by observing the motor waveform using a synchroscope, and assuming that a contact failure occurred when the motor waveform became abnormal. The results are shown in Table 2.

実施例2゜ 実施例1と同じベースを用いて、ベース100部に対し
て1.1.1−)ジメチル−3,3,3−トリメトキシ
ジシロキサン(MTM)3部とジメチルジメトキシ錫0
.1部を添加し均一に攪拌混合して得たRTVについて
、実施例1の場合と同様に物性及び接点不良発生の評価
を行った。その結果は第1表及び第2表に示した通りで
ある。
Example 2 Using the same base as in Example 1, 3 parts of 1.1.1-)dimethyl-3,3,3-trimethoxydisiloxane (MTM) and 0 of dimethyldimethoxytin per 100 parts of base.
.. The physical properties and the occurrence of contact failure were evaluated in the same manner as in Example 1 for the RTV obtained by adding 1 part and stirring and mixing uniformly. The results are shown in Tables 1 and 2.

実施例3゜ 実施例1と同じベースを用いて、ベース100部に対し
て1−ビニル−1,1−ジメチル−33,3−トリメト
キシジシロキサン(VTM)3部とジメチルジメトキシ
錫0.1部を添加し均一に攪拌混合して得たRTVにつ
いて、実施例1の場合と同様に物性及び接点不良発生の
評価を行った。この結果は第1表及び第2表に示した通
りである。
Example 3 Using the same base as in Example 1, 3 parts of 1-vinyl-1,1-dimethyl-33,3-trimethoxydisiloxane (VTM) and 0.1 tin of dimethyldimethoxy were added to 100 parts of the base. The physical properties and the occurrence of contact failure were evaluated in the same manner as in Example 1 for the RTV obtained by adding 50% of the total amount and stirring and mixing uniformly. The results are shown in Tables 1 and 2.

比較例1゜ 実施例1と同じベースを用いて、ベース100部に対し
てビニルトリメトキシシラン(VMS)3部とジメチル
ジメトキシ錫0.1部を添加し均一に攪拌混合して得た
RTVについて、実施例1の場合と同様に物性及び接点
不良発生の評価を行った。その結果は第1表及び第2表
に示した通りである。
Comparative Example 1゜About RTV obtained by using the same base as in Example 1, adding 3 parts of vinyltrimethoxysilane (VMS) and 0.1 part of dimethyldimethoxytin to 100 parts of the base and stirring and mixing them uniformly. The physical properties and occurrence of contact failure were evaluated in the same manner as in Example 1. The results are shown in Tables 1 and 2.

第1表及び第2表の結果は、本発明の室温硬化性組成物
の有効性を実証するものである。
The results in Tables 1 and 2 demonstrate the effectiveness of the room temperature curable compositions of the present invention.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は可変定電圧電源を用いたマイクロモーターの実
装概略図である。図中符号Mはマイクロモーターを表す
。 特許比願人  信越化学工業株式会社
FIG. 1 is a schematic diagram of the implementation of a micromotor using a variable constant voltage power supply. The symbol M in the figure represents a micromotor. Patent applicant Shin-Etsu Chemical Co., Ltd.

Claims (1)

【特許請求の範囲】 1)[1]分子鎖両末端にシラノール基又はアルコキシ
基を有するジオルガノポリシロキサン 100重量部、 [2]一般式R^1_3SiOSi(OR^2)_3で
示される有機珪素化合物及び/又はその部分加水分解縮
合物 1〜20重量部 (ここで、R^1は、炭素数1〜6の置換又は非置換の
一価炭化水素基を表し、R^2は、炭素数1〜4の非置
換又は置換の一価炭化水素基を表す。)並びに [3]有効量の硬化触媒 を主成分とすることを特徴とする室温硬化性オルガノポ
リシロキサン組成物。 2)請求項1に記載の組成物を硬化してなる硬化物。
[Scope of Claims] 1) [1] 100 parts by weight of diorganopolysiloxane having silanol groups or alkoxy groups at both ends of the molecular chain, [2] Organosilicon represented by the general formula R^1_3SiOSi(OR^2)_3 1 to 20 parts by weight of the compound and/or its partially hydrolyzed condensate (here, R^1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 6 carbon atoms, and R^2 represents a carbon number 1 to 4 unsubstituted or substituted monovalent hydrocarbon groups) and [3] A room-temperature-curable organopolysiloxane composition characterized by containing as a main component an effective amount of a curing catalyst. 2) A cured product obtained by curing the composition according to claim 1.
JP9107890A 1990-04-04 1990-04-04 Room temperature curable organopolysiloxane composition and curing product prepared therefrom Pending JPH03287664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9107890A JPH03287664A (en) 1990-04-04 1990-04-04 Room temperature curable organopolysiloxane composition and curing product prepared therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9107890A JPH03287664A (en) 1990-04-04 1990-04-04 Room temperature curable organopolysiloxane composition and curing product prepared therefrom

Publications (1)

Publication Number Publication Date
JPH03287664A true JPH03287664A (en) 1991-12-18

Family

ID=14016475

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPH03287664A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06322273A (en) * 1993-05-11 1994-11-22 Shin Etsu Chem Co Ltd Silicone rubber composition
JPH073163A (en) * 1992-10-06 1995-01-06 Naito Shizuka Solventless liquid organosiloxane composition and use thereof
EP0645395A1 (en) * 1993-09-29 1995-03-29 Dow Corning Toray Silicone Company, Limited Vinyl- and alkoxy-functional organosilicon compounds and method for the preparation thereof
JPH08302193A (en) * 1995-05-10 1996-11-19 Sanyo Chem Ind Ltd Silicone gel composition for cushioning material for riding ground, and cushioning material for riding ground
US6376635B1 (en) 1999-11-15 2002-04-23 Dow Corning Toray Silicon Co., Ltd. Oligosiloxane and method of preparing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528342A (en) * 1975-06-30 1977-01-22 Rothmayer Karl Heinz Ski boot and binding for ski boot
JPS57179243A (en) * 1981-04-27 1982-11-04 Toray Silicone Co Ltd Cold curing organopolysiloxane composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528342A (en) * 1975-06-30 1977-01-22 Rothmayer Karl Heinz Ski boot and binding for ski boot
JPS57179243A (en) * 1981-04-27 1982-11-04 Toray Silicone Co Ltd Cold curing organopolysiloxane composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073163A (en) * 1992-10-06 1995-01-06 Naito Shizuka Solventless liquid organosiloxane composition and use thereof
JPH06322273A (en) * 1993-05-11 1994-11-22 Shin Etsu Chem Co Ltd Silicone rubber composition
EP0645395A1 (en) * 1993-09-29 1995-03-29 Dow Corning Toray Silicone Company, Limited Vinyl- and alkoxy-functional organosilicon compounds and method for the preparation thereof
US5470934A (en) * 1993-09-29 1995-11-28 Dow Corning Toray Silicone Co., Ltd. Vinyl- and alkoxy-functional organosilicon compounds and method for the preparation thereof
JPH08302193A (en) * 1995-05-10 1996-11-19 Sanyo Chem Ind Ltd Silicone gel composition for cushioning material for riding ground, and cushioning material for riding ground
US6376635B1 (en) 1999-11-15 2002-04-23 Dow Corning Toray Silicon Co., Ltd. Oligosiloxane and method of preparing same

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