JPS6344042B2 - - Google Patents
Info
- Publication number
- JPS6344042B2 JPS6344042B2 JP58044879A JP4487983A JPS6344042B2 JP S6344042 B2 JPS6344042 B2 JP S6344042B2 JP 58044879 A JP58044879 A JP 58044879A JP 4487983 A JP4487983 A JP 4487983A JP S6344042 B2 JPS6344042 B2 JP S6344042B2
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- mold
- molded product
- heat
- type silicone
- 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.)
- Expired
Links
- 229920002379 silicone rubber Polymers 0.000 claims description 58
- 239000004945 silicone rubber Substances 0.000 claims description 58
- 239000000203 mixture Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- -1 polysiloxane Polymers 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 description 11
- 239000005060 rubber Substances 0.000 description 11
- 238000005266 casting Methods 0.000 description 6
- 238000013007 heat curing Methods 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000007259 addition reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- 125000005375 organosiloxane group Chemical group 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は異種のシリコーンゴムを一体成形して
なるシリコーンゴム成形品の製造方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a silicone rubber molded product by integrally molding different types of silicone rubber.
シリコーンゴム成形品については、形状の異な
る２種の成形品または導電性と絶縁性のように性
状の異なる２種の成形品を組合せてなるものも知
られているが、これはそれらが同種のシリコーン
ゴム成形品であれば爾后の加圧、加熱で容易に一
体化成形品とすることができるが、それらが異種
のシリコーンゴム成形品である場合には両者の接
着、融合が不充分なものとなり、満足すべき一体
成形品を得ることができないという問題点があつ
た。 Regarding silicone rubber molded products, some are known that are made by combining two types of molded items with different shapes or two types of molded items with different properties such as conductivity and insulation, but this is because they are of the same type. If it is a silicone rubber molded product, it can be easily made into an integrated molded product by applying pressure and heating afterwards, but if they are different types of silicone rubber molded products, the adhesion and fusion of the two may be insufficient. There was a problem that a satisfactory integrally molded product could not be obtained.
すなわち、この異種ゴム成形品の一体化につい
ては、たとえば金型キヤビテイに硬化したシリコ
ーン成形品を挿入し、ついでこゝにこれとは異種
の未硬化のシリコーンゴム組成物を仕込んで、加
圧、加熱して一体成形品とするか、あるいは未硬
化ゴム成形品の１部を切除してこゝに異種の未硬
化ゴムを挿入し、ついでこれらを加圧加熱して一
体成形品とする方法が採られているが、前者の方
法ではこの２種のゴム成形品の接着が不充分であ
るほか、この場合には未硬化ゴムが金型と硬化ゴ
ムとの間に侵入する、いわゆる裏廻りが生じるた
め一体化成形品が外観のみぐるしいものになると
いう不利があり、後者の場合には加圧時における
両者の流動によつてその接着面が乱れてしまうと
いう不利があるほか、その接着も不良なものにな
り易いという欠点があつた。 That is, in order to integrate dissimilar rubber molded products, for example, a cured silicone molded product is inserted into a mold cavity, then an uncured silicone rubber composition of a different type is charged, pressure is applied, The method is to heat it to make an integral molded product, or to cut out a part of the uncured rubber molded product, insert a different type of uncured rubber into it, and then press and heat them to make an integral molded product. However, in the former method, the adhesion between these two types of rubber molded products is insufficient, and in this case, uncured rubber enters between the mold and the cured rubber, resulting in so-called backing. Therefore, there is a disadvantage that the integrated molded product has an unsightly appearance, and in the latter case, there is a disadvantage that the bonding surface is disturbed by the flow of the two when pressurized, and the bond is also poor. It had the disadvantage of being easy to become a thing.
本発明はこのような不利を解決した異種のシリ
コーンゴムからなる一体化成形品の製造方法に関
するものであり、これは液状の付加型シリコーン
ゴムを予熱されている金型のキヤビテイ凹部に注
入して非流動状に固化させたのち、この金型に加
硫剤を添加した加熱硬化型の硬化性シリコーンゴ
ム組成物を仕込み、金型を閉じて加圧加熱して一
体成形品とすることを特徴とするものである。 The present invention relates to a method for manufacturing an integrated molded product made of different types of silicone rubber that solves these disadvantages. After solidifying into a non-flowing state, a heat-curable silicone rubber composition containing a vulcanizing agent is charged into the mold, the mold is closed, and the mold is heated under pressure to form an integrally molded product. That is.
これを説明すると、本発明者らは異種のシリコ
ーンゴムからなる一体成形品の製造方法について
種々検討した結果、このシリコーンゴム組成物と
して付加型のシリコーンゴム組成物と通常ミラブ
ルと呼称されている有機過酸化物を加硫剤として
含有する加熱硬化型の硬化性シリコーンゴム組成
物を選択し、まずこの液状の付加型シリコーンゴ
ム組成物を金型内に注入してこれを加熱下に常圧
では流動しないようになるまで硬化させ、ついで
これに加熱硬化型の硬化性シリコーンゴム組成物
を接触させてから加圧加熱すれば、この付加型シ
リコーンゴム組成物が加圧下では流動性を示し、
これによつてそれが金型内に充満されるので加熱
硬化型シリコーンゴム組成物が裏廻りするという
不利が除かれるほか、この場合には未だ完全硬化
になつていない液状の付加型シリコーンゴム組成
物が加熱硬化型シリコーンゴムとの加圧加熱によ
り、そこに含まれている加硫剤の作用を受けて両
者が共加硫されて完全に一体化された成形品を得
ることができることを見出し、これらの組成物の
性状、配合比、成形条件などについての検討も行
なつて本発明を完成させた。 To explain this, the present inventors have conducted various studies on the manufacturing method of integrally molded products made of different types of silicone rubber, and have found that the silicone rubber composition is an addition-type silicone rubber composition and an organic silicone rubber composition usually called millable. A heat-curable curable silicone rubber composition containing peroxide as a vulcanizing agent is selected, and this liquid addition-type silicone rubber composition is first injected into a mold and heated under normal pressure. If it is cured until it becomes non-flowing, then a heat-curable curable silicone rubber composition is brought into contact with it and heated under pressure, this addition-type silicone rubber composition exhibits fluidity under pressure.
This eliminates the disadvantage of the heat-curable silicone rubber composition from backing up as it fills the mold, and in this case, the liquid addition-type silicone rubber composition has not yet been completely cured. It was discovered that by pressurizing and heating a material with a heat-curable silicone rubber, the two are co-vulcanized by the action of the vulcanizing agent contained therein, and a completely integrated molded product can be obtained. The present invention was completed by studying the properties, compounding ratio, molding conditions, etc. of these compositions.
本発明の方法で使用される液状の付加型シリコ
ーンゴムは公知のものであり、これは分子中にけ
い素原子に結合した脂肪族不飽和基、例えばビニ
ル基（≡SiVi基）を有するオルガノポリシロキ
サンと、分子中にけい素原子と結合した水素基
（≡SiH基）をもつオルガノハイドロジエンポリ
シロキサンとからなる、25℃における粘度が300
〜500000cSであるものであり、これは周期律表
第族に属する貴金属、例えば白金、ロジウム、
パラジウムまたはそれらの化合物、、錯塩などを
触媒として添加すると、この≡SiH基への≡SiVi
基の付加反応が開始され、これによつて架橋反応
が進行し硬化物となるものである。なお、この付
加反応は常温でも進行するが、通常これは50〜
200℃の加熱下で行なわれる。この組成物を構成
する≡SiVi基もつオルガノシロキサンと≡SiH基
をもつオルガノハイドロジエンシロキサンとはそ
のいずれかに前記した貴金属系触媒が配合されて
おり、これらは通常使用時に所定配合比でこれを
混合して使用する、いわゆる二液型組成物として
市販されているが、この配合比はその≡SiH基／
≡SiVi基が0.8〜8.0の範囲、好ましくは0.8〜3.0
の範囲となるようにすればよく、それが1.0以下
の場合にはこれらに若干量の有機過酸化物を添加
しておくことがよい。 The liquid addition type silicone rubber used in the method of the present invention is a known one, which is an organopolymer having an aliphatic unsaturated group bonded to a silicon atom in the molecule, such as a vinyl group (≡SiVi group). It is composed of siloxane and organohydrodiene polysiloxane which has a hydrogen group bonded to a silicon atom (≡SiH group) in the molecule, and has a viscosity of 300% at 25℃.
~500000cS, which is the highest value for precious metals belonging to group 3 of the periodic table, such as platinum, rhodium,
When palladium or its compounds, complex salts, etc. are added as a catalyst, the ≡SiVi
The addition reaction of the groups is initiated, and as a result, the crosslinking reaction progresses, resulting in a cured product. Note that this addition reaction proceeds even at room temperature, but it is usually
This is done under heating at 200°C. The organosiloxane with ≡SiVi groups and the organohydrodiene siloxane with ≡SiH groups that make up this composition are blended with the above-mentioned noble metal catalyst, and these are used in a predetermined blending ratio during normal use. It is commercially available as a so-called two-component composition that can be mixed and used, but the blending ratio is ≡SiH group /
≡SiVi group ranges from 0.8 to 8.0, preferably 0.8 to 3.0
If it is less than 1.0, it is advisable to add a small amount of organic peroxide.
他方、この付加型シリコーンゴムと接合される
加熱硬化型の硬化性シリコーンゴム組成物は分子
鎖末端に水酸基またはトリメチル基、ジメチルビ
ニル基をもつオルガノポリシロキサン、分子中に
ビニル基などの官能基をもつオルガノポリシロキ
サンに有機過酸化物などの加硫剤を配合したもの
であるが、これは一般にミラブルと呼ばれている
市販のものであればよく、特に限定されるもので
はない。 On the other hand, the heat-curable curable silicone rubber composition bonded to this addition-type silicone rubber is an organopolysiloxane having a hydroxyl group, a trimethyl group, or a dimethylvinyl group at the end of the molecular chain, and a functional group such as a vinyl group in the molecule. It is a mixture of organopolysiloxane with a vulcanizing agent such as an organic peroxide, but it is not particularly limited as long as it is a commercially available product generally called "mirable".
本発明の方法はまず、上記した液状付加型シリ
コーンゴムを予熱した金型のキヤビテイ中に注入
するのであるが、この金型の予熱温度は25〜200
℃とすることがよい。この注入、加熱によつて液
状付加型シリコーンゴムは加圧下では流動するが
常圧下では流動しない状態にまで固化されるが、
これがあまり早く固化するとその注型時に巻き込
まれた空気が脱気されなくなるので、この付加型
シリコーン組成物にはこれにアセチレンアルコー
ル化合物などの公知の反応制御剤を添加しておく
ことがよく、これを添加するとこの金型の予熱温
度を高くしてもその固化までの時間を自由に調節
することができるので、これに続く加熱硬化性シ
リコーンゴムとの加圧加熱までの処理サイクルを
短縮することができるという有利性も与えられ
る。 In the method of the present invention, the above-mentioned liquid addition type silicone rubber is first injected into the cavity of a preheated mold.
It is better to set it to ℃. Through this injection and heating, the liquid addition type silicone rubber is solidified to the point where it flows under pressure but does not flow under normal pressure.
If the silicone solidifies too quickly, the air drawn in during casting will not be degassed, so it is recommended to add a known reaction control agent such as an acetylene alcohol compound to the addition silicone composition. By adding , it is possible to freely adjust the time until solidification even if the preheating temperature of the mold is increased, thereby shortening the processing cycle until the subsequent pressurization and heating with heat-curable silicone rubber. It also has the advantage of being able to.
なお、この付加型シリコーン組成物の固化は前
記した≡SiVi基をもつオルガノシロキサンと≡
SiH基をもつオルガノハイドロジエンシロキサン
との反応が10〜90％、好ましくは30〜80％まで進
行したところで停止させることが好ましく、これ
はその組成物の種類、配合比、金型温度、制御剤
の添加量などに応じて予じめ測定した条件にもと
づいて実施するようにすればよい。 The solidification of this addition-type silicone composition is carried out by combining the organosiloxane with the ≡SiVi group mentioned above and ≡
It is preferable to stop the reaction when the reaction with the organohydrodiene siloxane having SiH groups has progressed to 10 to 90%, preferably 30 to 80%. The test may be carried out based on conditions measured in advance depending on the amount of addition, etc.
本発明の方法はキヤビテイ内の液状付加型シリ
コーンゴムがこのような状態になつたときに、
こゝに加熱硬化型のシリコーンゴム組成物を仕込
んで金型を閉じ、加圧加熱するのであるが、これ
によれば加熱硬化型シリコーンゴム組成物に配合
されている加硫剤の作用による加熱硬化型シリコ
ーンゴムの硬化と共に付加型シリコーンゴムも半
硬化状態から完全硬化物となり、この同時加硫に
よつて両者が完全に接着された一体成形品が得ら
れるという効果が与えられる。なお、この加圧加
硫条件はこゝに使用する加熱硬化型シリコーンゴ
ム組成物の種類、粘度などによつて相違するが、
これは通常５〜50Kg／cm2、120〜200℃の範囲とす
ればよく、この加硫はさらに必要に応じこの温度
を150〜200℃として二次加硫を行なわせてもよ
い。 In the method of the present invention, when the liquid addition type silicone rubber in the cavity is in this state,
A heat-curable silicone rubber composition is charged into the mold, the mold is closed, and the mold is heated under pressure. When the curable silicone rubber is cured, the addition type silicone rubber also changes from a semi-cured state to a completely cured product, and this simultaneous vulcanization provides the effect of obtaining an integrally molded product in which both are completely bonded. Note that the pressure vulcanization conditions vary depending on the type and viscosity of the heat-curing silicone rubber composition used here.
This vulcanization may normally be in the range of 5 to 50 kg/cm 2 and 120 to 200°C, and if necessary, secondary vulcanization may be performed at this temperature at 150 to 200°C.
つぎにこれを添付の図面にもとづいて説明する
と、第１図〜第３図はこの各工程の縦断面図を示
したものであり、第１図における金型１は予熱さ
れており、このキヤビテイ２に液状の付加型シリ
コーンゴム３が注型されている。この付加型シリ
コーンゴムが加圧下では流動するが常温では流動
しない程度に固化されたとき、第２図に示したよ
うにこれに加熱硬化型のシリコーンゴム組成物４
を仕込み、蓋５を閉じてから加圧加熱する。つぎ
に加圧加熱後に第３図に示したように金型を開
き、成形品６を取り出すと、これは付加型シリコ
ーンゴム成形品７と加熱硬化型シリコーンゴム成
形品８が一体成形されたものとして得られる。 Next, this will be explained based on the attached drawings. Figs. 1 to 3 show longitudinal cross-sectional views of each process. The mold 1 in Fig. 1 has been preheated, and the cavity A liquid addition-type silicone rubber 3 is cast into 2. When this addition type silicone rubber is solidified to the extent that it flows under pressure but does not flow at room temperature, a heat-curable silicone rubber composition 4 is added to it as shown in FIG.
The mixture is heated under pressure after closing the lid 5. Next, after pressurizing and heating, the mold is opened as shown in Figure 3, and the molded product 6 is taken out. This is an integrally molded addition-type silicone rubber molded product 7 and heat-curable silicone rubber molded product 8. obtained as.
これを要するに本発明は液状付加型シリコーン
ゴムを注型し、これが非流動性となつたときにこ
れに加熱硬化型のシリコーンゴム組成物を重ねて
加圧加熱して一体成形品とするものであり、これ
によれば裏廻りなく、したがつてその接触面が直
線状となり、しかもこの両者が完全に融着された
一体成形品を得ることができるという有利性が与
えられる。また、この成形方法について、上記で
は特に注型に続いて圧縮成形する方法について述
べたが、これは注型後の金型に加熱硬化型のシリ
コーンゴム組成物を射出成形機を用いて射出成形
してもよく、これについてはさらにこの液状付加
型シリコーンゴム、加熱硬化型シリコーンゴム組
成物を異色としたり、あるいはそのいずれかを多
色のものとしてもよく、さらにはこのいずれかを
導電性とし、他方を絶縁性のものとしてもよい。 In short, the present invention involves casting a liquid addition type silicone rubber, and when it becomes non-flowing, a heat-curable silicone rubber composition is layered on it and heated under pressure to form an integrally molded product. This has the advantage that there is no backing, the contact surface is straight, and it is possible to obtain an integrally molded product in which the two are completely fused. In addition, regarding this molding method, above we specifically described the method of casting followed by compression molding, but this is a method in which a heat-curing silicone rubber composition is placed in the mold after casting using an injection molding machine. In this regard, the liquid addition type silicone rubber and the heat-curable silicone rubber composition may be made into different colors, or either of them may be made into multicolored ones, and furthermore, either of them may be made into electrically conductive ones. , the other may be insulating.
なお、この方法で得られた一体成形品は各種用
途に広く使用されるものであり、これは例えばミ
ラブルゴムでは加硫剤の分解残渣があるため、血
液との接触部だけを付加型シリコーンゴムとし、
これにミラブルゴムを接着させた針差し釦用とし
て、また食品との接触部を付加型シリコーンゴム
とし、これにミラブルゴムを接着させた食品収納
パツキング材、さらには接点部を導電性の付加型
シリコーンゴムとし、これにクリツク作用を与え
るミラブルゴム製の弧状部を接合させた電子部品
用接点素子などに有利に使用することができる。 The integrally molded product obtained by this method is widely used for various purposes, and this is because millable rubber, for example, has decomposition residue from the vulcanizing agent, so only the parts that come in contact with blood are made of addition-type silicone rubber. ,
This can be used as a needle insertion button with millable rubber adhered to it, and food storage packing materials can be made with additional silicone rubber on the contact part with food and with millable rubber adhered to this, and furthermore, conductive additional silicone rubber can be used on the contact parts. It can be advantageously used in contact elements for electronic components, etc., in which an arc-shaped part made of millable rubber is bonded to provide a click action.
つぎに本発明方法の実施例をあげる。 Next, examples of the method of the present invention will be given.
実施例
液状付加型シリコーンゴムKE−106LTV〔信越
化学工業(株)製、商品名〕100重量部に白色顔料と
してチタンホワイト５重量部と硬化触媒Cat−
RG5重量部（同社製、商品名）を混合し、これ
を1C.C.の内容積をもつキヤビテイ多数をもつ第
１図に示したような金型のキヤビテイに注射針を
用いて0.5C.C.宛注型し、100℃で５分間反応させ
たところ、この組成物はキヤビテイ内にその表面
が水平状である固化物となつた。Example 100 parts by weight of liquid addition type silicone rubber KE-106LTV [manufactured by Shin-Etsu Chemical Co., Ltd., trade name], 5 parts by weight of titanium white as a white pigment, and curing catalyst Cat-
Mix part by weight of RG5 (manufactured by the company, product name) and use a syringe needle to inject it into the cavity of a mold with many cavities each having an internal volume of 1C.C. using a syringe needle. When cast and reacted at 100°C for 5 minutes, the composition solidified within the cavity with a horizontal surface.
つぎにこの金型に加熱硬化型シリコーンゴム組
成物KE−951U〔信越化学工業(株)製、商品名〕100
重量部に触媒のＣ−８（同社製、商品名）２重量
部を添加したもの20ｇを第２図に示したように仕
込み、金型を閉じて30Kg／cm2、180℃に加圧加熱
してから金型を開き、成形品を取り出してから
200℃で４時間後加硫したところ、得られた成形
品はその両ゴムの接着面が美しい水平面となつて
おり、これらが完全に接着した一体成形品となつ
ていた。 Next, heat-curing silicone rubber composition KE-951U [manufactured by Shin-Etsu Chemical Co., Ltd., trade name] 100
Add 2 parts by weight of catalyst C-8 (manufactured by the same company, trade name) to 20 g as shown in Figure 2, close the mold, and heat under pressure to 180°C at 30 kg/cm 2 Then, open the mold, take out the molded product, and then
After vulcanization at 200°C for 4 hours, the molded product obtained had a beautiful horizontal surface on which both rubbers adhered, and the molded product was completely bonded to form an integral molded product.
第１図〜第３図はいずれも本発明方法を実施す
るための装置の縦断面図を工程順に例示したもの
であり、第１図は液状付加型シリコーンゴムの注
型工程、第２図は加熱硬化型シリコーンゴム組成
部の仕込み、加圧加熱工程、第３図は成形品取出
し工程を示したものである。
１……金型、２……キヤビテイ、３……付加型
シリコーンゴム、４……加熱硬化型シリコーンゴ
ム、５……蓋、６……一体成形品。
Figures 1 to 3 are longitudinal cross-sectional views of an apparatus for carrying out the method of the present invention in the order of steps, with Figure 1 showing the process of casting liquid addition type silicone rubber, and Figure 2 showing the process of casting liquid addition type silicone rubber. The preparation of the heat-curing silicone rubber composition part, the pressurizing and heating process, and FIG. 3 shows the process of taking out the molded product. 1...Mold, 2...Cavity, 3...Additional silicone rubber, 4...Heat-curing silicone rubber, 5...Lid, 6 ...Integrated molded product.
Claims (1)
る金型のキヤビテイ凹部に注入して非流動状に固
化させたのち、この金型に加硫剤を添加した加熱
硬化型の硬化性シリコーンゴム組成物を仕込み、
金型を閉じ加圧、加熱して一体成形品とすること
を特徴とする異種シリコーンゴム成形品の製造方
法。 ２ 付加型シリコーンゴムが1000〜100000cSの
粘度をもつものである特許請求の範囲第１項記載
の異種シリコーンゴム成形品の製造方法。 ３ 付加型シリコーンゴムが、けい素原子に結合
する水素基をもつオルガノハイドロジエンポリシ
ロキサンとけい素原子に結合するビニル基をもつ
オルガノポリシロキサンとをその≡SiH基／≡
SiCH CH2基の比が0.8〜３の比率となるように
配合してなるものである特許請求の範囲第１項記
載の異種シリコーンゴム成形品の製造方法。[Scope of Claims] 1. A heat-curable silicone rubber in which liquid addition-type silicone rubber is injected into the cavity recess of a preheated mold and solidified to a non-flowing state, and then a vulcanizing agent is added to the mold. Prepare a curable silicone rubber composition,
A method for manufacturing dissimilar silicone rubber molded products, which comprises closing a mold, applying pressure, and heating to form an integrally molded product. 2. The method for producing a dissimilar silicone rubber molded article according to claim 1, wherein the addition type silicone rubber has a viscosity of 1,000 to 100,000 cS. 3 The addition type silicone rubber combines an organohydrodiene polysiloxane with a hydrogen group bonded to a silicon atom and an organopolysiloxane with a vinyl group bonded to a silicon atom with their ≡SiH group/≡
2. The method for producing a heterogeneous silicone rubber molded article according to claim 1, wherein the SiCH CH 2 groups are blended at a ratio of 0.8 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4487983A JPS59169834A (en) | 1983-03-17 | 1983-03-17 | Manufacture of molded article made of different species of silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4487983A JPS59169834A (en) | 1983-03-17 | 1983-03-17 | Manufacture of molded article made of different species of silicone rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59169834A JPS59169834A (en) | 1984-09-25 |
| JPS6344042B2 true JPS6344042B2 (en) | 1988-09-02 |
Family
ID=12703772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4487983A Granted JPS59169834A (en) | 1983-03-17 | 1983-03-17 | Manufacture of molded article made of different species of silicone rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59169834A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417221U (en) * | 1990-05-28 | 1992-02-13 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4620558B2 (en) * | 2005-09-26 | 2011-01-26 | 利保烙印標企業股▲分▼有限公司 | Silicone rubber molding method |
| JP5484607B1 (en) * | 2013-01-23 | 2014-05-07 | 有限会社植田屋染工場 | Method for manufacturing phosphorescent material |
| JP5684360B2 (en) * | 2013-11-01 | 2015-03-11 | 本多産業株式会社 | Silicone rubber multilayer sheet |
| JP6190704B2 (en) * | 2013-11-27 | 2017-08-30 | 古河電気工業株式会社 | Manufacturing method of rubber molded product and manufacturing method of connecting part of power cable |
| TWI641633B (en) * | 2017-04-10 | 2018-11-21 | 仁寶電腦工業股份有限公司 | Molding material and manufacturing method of the same, and molding method of molded article |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127983A (en) * | 1976-04-19 | 1977-10-27 | Kuraray Plastics Co | Method of making consolidated structure of different kinds of rubber |
| JPS5641417A (en) * | 1979-09-12 | 1981-04-18 | Mitsubishi Motors Corp | Exhaust turbocharger |
| JPS58171442A (en) * | 1981-12-07 | 1983-10-08 | Toray Silicone Co Ltd | Molded article of silicone rubber and its preparation |
| JPS58205761A (en) * | 1982-05-25 | 1983-11-30 | ト−レ・シリコ−ン株式会社 | Silicon rubber shape and its manufacture |
-
1983
- 1983-03-17 JP JP4487983A patent/JPS59169834A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127983A (en) * | 1976-04-19 | 1977-10-27 | Kuraray Plastics Co | Method of making consolidated structure of different kinds of rubber |
| JPS5641417A (en) * | 1979-09-12 | 1981-04-18 | Mitsubishi Motors Corp | Exhaust turbocharger |
| JPS58171442A (en) * | 1981-12-07 | 1983-10-08 | Toray Silicone Co Ltd | Molded article of silicone rubber and its preparation |
| JPS58205761A (en) * | 1982-05-25 | 1983-11-30 | ト−レ・シリコ−ン株式会社 | Silicon rubber shape and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417221U (en) * | 1990-05-28 | 1992-02-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59169834A (en) | 1984-09-25 |
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