JPS608930B2 - Inner mold release agent composition for tire molding - Google Patents
Inner mold release agent composition for tire moldingInfo
- Publication number
- JPS608930B2 JPS608930B2 JP52005886A JP588677A JPS608930B2 JP S608930 B2 JPS608930 B2 JP S608930B2 JP 52005886 A JP52005886 A JP 52005886A JP 588677 A JP588677 A JP 588677A JP S608930 B2 JPS608930 B2 JP S608930B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- mold release
- release agent
- tire molding
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Lubricants (AREA)
Description
【発明の詳細な説明】 本発明はタイヤ成型用内面離型剤組成物に関する。[Detailed description of the invention] The present invention relates to an inner mold release agent composition for tire molding.
従来、生タイヤゴムを加硫してタイヤを成型する際のプ
ラダーゴムとタイヤゴム間との内面雛型剤としてはゴム
揮発油またはガソリンを主成分とし、これにマイカやタ
ルク粉末を分散させたものが使用されていたが、火災の
危険性、作業員の安全衛生上の観点から水系離型剤が提
案されている（樽開昭４８−１３４４８、同５１一１０
３１８０、同５１一８８５７９などがある）。しかしな
がらこれらの提案はいずれもオルガノポリシロキサンを
主成分としているために非常に高価であり、実用的には
不向きであること、またタイヤ成型時にタイヤの継目の
部分の密着がわろく（クラックを生じ易い）、マイカ落
ちを起し易く、乾燥時間が長くかかるなどの欠点がある
。本発明者らはこれらの欠陥項目を重視し、従来のガソ
リンベース雛型剤のもつ速乾性の長所を保持し同時に上
記の欠点を全面的に解消した水系のタイヤ成型用内面離
型剤を発明するに至ったものである。本発明のタイヤ成
型用水性内面離型剤組成物は必須の構成成分として組成
物１０の重量部当り、■ ２５００で３０〜２０００セ
ンチポィズ（ｃｐｓ）の粘度を有するポリオキシブロピ
レンポリオールまたはポリオキシプロピレンポリオキシ
エチレンランダムポリオール ２〜１の
重量都側 高級アルコールのエチレンオキサィド付加物
２〜１の重量部【Ｃ）高級脂肪酸のアルカリ金属塩０．
５〜５重量部肋 １００〜１０００メッシュのマィカ
１５〜３５重量部を含み、２５ｏｏにおける粘度が５
００〜２００比ｐｓのものである。Conventionally, when raw tire rubber is vulcanized to mold tires, the inner surface modeling agent between the Prader rubber and the tire rubber has been mainly composed of rubber volatile oil or gasoline, with mica or talc powder dispersed therein. However, water-based mold release agents have been proposed from the viewpoint of fire danger and safety and health of workers (Taru Kai 48-13448, 51-10
3180, 51-88579, etc.) However, all of these proposals have organopolysiloxane as their main component, which makes them very expensive and unsuitable for practical use.Also, the adhesion of the tire joints during tire molding is poor (crack may occur). It has drawbacks such as easy removal of mica and long drying time. The present inventors focused on these deficiencies and invented a water-based inner mold release agent for tire molding that retains the quick drying advantage of conventional gasoline-based molding agents while completely eliminating the above-mentioned drawbacks. This is what I came to do. The aqueous internal mold release agent composition for tire molding of the present invention contains, as an essential component, polyoxypropylene polyol or polyoxypropylene having a viscosity of 30 to 2000 centipoise (cps) at 2500, per 10 parts by weight of the composition. Polyoxyethylene random polyol 2 to 1 parts by weight Ethylene oxide adduct of higher alcohol 2 to 1 parts by weight [C) Alkali metal salt of higher fatty acid 0.
5-5 parts by weight ribs 100-1000 mesh mica
Contains 15 to 35 parts by weight and has a viscosity of 5 at 25oo
00 to 200 ps.
本発明で使用する必須成分■すなわち２５００で３０〜
２００比ｐｓの粘度を有するポリオキシプロピレンポリ
オールまたはポリオキシプロピレンポリオキシエチレン
ランダムポリオールはメタノール、エタノール、ｎ−ブ
タノールなどの炭素数１〜４個の１価アルコール、また
はエチレングリコール、プロピレングリコールなどの炭
素数２〜３個の２価アルコール、またはグリセリン等の
多価アルコール、好ましくは１〜３価のアルコールを出
発物質として、これにプロピレンオキサィドを、要すれ
ば更にエチレンオキサィドをもランダムに、共重合させ
たものである。Essential ingredients used in the present invention ■i.e. 30 to 2500
Polyoxypropylene polyol or polyoxypropylene polyoxyethylene random polyol having a viscosity of 200 ps is a monohydric alcohol having 1 to 4 carbon atoms such as methanol, ethanol, n-butanol, or a carbonaceous alcohol such as ethylene glycol or propylene glycol. Using a few dihydric alcohols or polyhydric alcohols such as glycerin, preferably mono- to trihydric alcohols as starting materials, propylene oxide and, if necessary, ethylene oxide are added randomly to this. It is a copolymerized product.
必須成分の〔Ｂ｝すなわち高級アルコールのエチレンオ
キサィド付加物における高級アルコールとしてはオクチ
ルアルコール、ラウリルアルコール、セチルアルコール
などの天然アルコールおよびチーグラーアルコール、オ
キソアルコール、セカンダリーァルコールなどの合成ア
ルコールが含まれ、炭素数８〜１８の直鎖及び分岐鎖ア
ルコールがよい。The essential component [B], that is, the higher alcohol in the ethylene oxide adduct of higher alcohol, includes natural alcohols such as octyl alcohol, lauryl alcohol, and cetyl alcohol, and synthetic alcohols such as Ziegler alcohol, oxo alcohol, and secondary alcohol. , straight chain and branched chain alcohols having 8 to 18 carbon atoms are preferred.
エチレンオキサィドの付加モル数は８〜２０モルがよい
。必須成分｛０すなわち高級脂肪酸のアルカリ金属塩に
おける高級脂肪酸としてはラウリン酸、パルミチン酸、
ステアリン酸、オレイン酸、リノール酸、トール油脂肋
酸などを含み、炭素数１２〜２６の飽和或は不飽和脂肪
酸がよく、アルカリ金属はナトリウム又はカリウムがよ
い。必須成分ｍ｝のマィカは１００〜１０００メッシュ
である。上記必須成分に加えて、ステアリン酸カルシウ
ム、ラウリン酸マグネシウムなどの脂肪酸のアルカリ士
類金属塩を用いる場合はこれを５〜２５重量３部および
メタノール、エタノール、ィソプロパノール、ｎ−ブタ
ノールなどの低級アルコールを用いる場合はこれを１５
〜３５重量部の量で適宜加えることができる。以下に実
施例を掲げて本発明を更に具体的に説４明する。The number of moles of ethylene oxide added is preferably 8 to 20 moles. Essential components {0, that is, higher fatty acids in alkali metal salts of higher fatty acids include lauric acid, palmitic acid,
Saturated or unsaturated fatty acids having 12 to 26 carbon atoms are preferable, including stearic acid, oleic acid, linoleic acid, tall fatty acid, etc., and the alkali metal is preferably sodium or potassium. Mica, which is an essential component m}, has a mesh size of 100 to 1000. In addition to the above essential ingredients, if using an alkali metal salt of a fatty acid such as calcium stearate or magnesium laurate, add 5 to 25 parts by weight of this salt and a lower alcohol such as methanol, ethanol, isopropanol, n-butanol, etc. If you use , set this to 15
It can be added appropriately in an amount of ~35 parts by weight. The present invention will be explained in more detail with reference to Examples below.
実施例 １
２５００で２８母ｐｓの粘度を有する、出発物質をｎー
ブタノールとしたエチレンオキサイドとプロピレンオキ
サイドの５０：５の重量比のランダム共重合物８重量部
、パラフィン酸化によるセカンダリーアルコール（炭素
数１２〜１３）のエチレンオキサィド８モル付加物１．
５重量部、同じくセカンダリーアルコール（炭素数１２
〜１３）のエチレンオキサィド１４モル付加物１．５重
量部、トール油脂肪酸ナトリウム塩０．５重量部「及び
２００メッシュのマィカ２５重量部、ィソプロパノール
２の重量部および水４３．５重量部を均一に混合損拝す
ると２５ＣＯで１００比ｐＳの雛型剤となり、常温で１
週間放置してもマィカの分離は見られず粘度の変化も無
かった。Example 1 8 parts by weight of a random copolymer of ethylene oxide and propylene oxide in a weight ratio of 50:5 with n-butanol as the starting material, having a viscosity of 28 msec at 2500 ps, a secondary alcohol (carbon number 12) by paraffin oxidation. -13) 8 mole ethylene oxide adduct 1.
5 parts by weight, also secondary alcohol (carbon number 12
1.5 parts by weight of 14 mole adduct of ethylene oxide of ~13), 0.5 parts by weight of tall oil fatty acid sodium salt, 25 parts by weight of 200 mesh mica, 2 parts by weight of isopropanol and 43.5 parts by weight of water. When the parts by weight are mixed uniformly, it becomes a template agent with 25CO and 100 pS, and 1 at room temperature.
Even after leaving it for a week, no separation of mica was observed and there was no change in viscosity.
この雛型剤をタイヤ内面生ゴムを重ね合せたものに３の
９／のの割合で均一にスプレー塗布し室温に放置すると
約５分間で速やかに乾燥した。このものを温度１５０ｏ
ｏ、圧力１０ｋ９／ｃ杉、時間２０分の条件でプラダー
ゴムにて圧着後、冷却するとプラダーゴムは容易に機型
し、重ね合せの部分の離型（クラック）は見られなかっ
た。実施例 ２
２５００で１１９比ｐｓの粘度を有する、出発物質をグ
リセリンとしたエチレンオキサイドとプロピレンオキサ
ィドの６５：３５重量比のランダム共重合物４．塁重量
部、ラウリルアルコールのエチレンオキサィド９モル付
加物７．箱重量部、オレィン酸カリウム塩０．６重量部
、ステアリン酸亜鉛８重量部、３００メッシュのマィカ
３の重量部、エタノール２０重量部、および水２８．刀
重量部を均一に混合擬梓すると２５ご０で１７０比ｐｓ
の離型剤が得られ、常温にて１週間放置後も外観的に変
化が見られず、タイヤ成型時の離型剤として贋霧性、離
型性潤滑性共に良好であった。This template agent was sprayed uniformly at a ratio of 3:9 to a stack of raw rubber on the inner surface of the tire, and when left at room temperature, it quickly dried in about 5 minutes. This thing at a temperature of 150o
After crimping with Prader rubber under the conditions of 10 k9/c cedar pressure, 20 minutes, and cooling, the Prader rubber was easily molded, and no mold release (cracks) were observed in the overlapped parts. Example 2 Random copolymer of 65:35 weight ratio of ethylene oxide and propylene oxide with glycerin as starting material, having a viscosity of 119 specific ps at 2500 4. Base weight part, 9 mole ethylene oxide adduct of lauryl alcohol7. parts by weight of the box, 0.6 parts by weight of potassium oleate, 8 parts by weight of zinc stearate, parts by weight of 300 mesh mica 3, 20 parts by weight of ethanol, and 28 parts by weight of water. When the sword weight part is mixed evenly, the PS is 170 at 25%.
A mold release agent was obtained, which showed no change in appearance even after being left at room temperature for one week, and had good mistability and mold release lubricity as a mold release agent during tire molding.
実施例 ３
２５ｏｏで８０比ｐｓの粘度を有する、出発物質をプロ
ピレングリコールとしたエチレンオキサイドとプロピレ
ンオキサィドの５０：５■重量比のランダム共重合物６
．０重量部、オキソアルコールのエチレンオキサィド１
８モル付加物２．０重量部、ラウリン酸ナトリウム塩０
．錠重量部「 パルミチン酸マグネシウム２の重量部、
５００メッシュのマィカ１５重量部、ィソプロパノール
２の重量部および水３４．鑓重量部を均一に混合損拝す
ると２５００で１３０比ｐｓの離型剤となり、常温で１
週間放置後も外観的に何ら変化が見られず、タイヤ成型
時の離型剤として頃霧性、離型性、潤滑性共に良好であ
った。Example 3 Random copolymer of ethylene oxide and propylene oxide in a 50:5 weight ratio 6 with propylene glycol as starting material, having a viscosity of 80 specific ps at 25 oo
．． 0 parts by weight of ethylene oxide in oxo alcohol
2.0 parts by weight of 8 molar adduct, 0 parts by weight of sodium laurate salt
．． Parts by weight of tablets: Parts by weight of magnesium palmitate 2,
15 parts by weight of 500 mesh mica, 2 parts by weight of isopropanol and 34 parts by weight of water. When the weight part of the iron is mixed uniformly, it becomes a mold release agent with 2500 and 130 specific ps, and 1 at room temperature.
Even after being left for a week, no change in appearance was observed, and as a mold release agent during tire molding, it had good atomizing properties, mold release properties, and lubricity.
実施例 ４
２ｙｏで１５０比ｐｓの粘度を有する、出発物質をｎ−
ブタノールとしてエチレンオキサイドとプロピレンオキ
サィドの５０：５の重量比のランダム共重合物３．４重
量部とパラフィン酸化によるセカンダリーアルコール（
炭素数１２〜１３）のエチレンオキサィド１２モル付加
物８．５重量部、オレィン酸ナトリウム塩２．５重量部
、３００メッシュのマィカ２０重量部、ィソプロパノー
ル２の重量部および水３５．亀重量部を均一に混合磯拝
すると２５ｏ０で１５０比ｐｓの雛型剤となり、常温で
１週間放置後も外観的に何ら変化が見られず、タイヤ成
形時の離型剤として噴霧性、離型性、潤滑性共に良好で
あった。Example 4 Starting material with a viscosity of 150 ps at 2yo
3.4 parts by weight of a random copolymer of ethylene oxide and propylene oxide in a weight ratio of 50:5 as butanol and a secondary alcohol by paraffin oxidation (
8.5 parts by weight of a 12 mole adduct of ethylene oxide having 12 to 13 carbon atoms, 2.5 parts by weight of sodium oleate, 20 parts by weight of 300 mesh mica, 2 parts by weight of isopropanol and 35 parts by weight of water. When a part by weight of turtle is uniformly mixed with Isohei, it becomes a template agent with 150 specific ps at 25o0, and there is no change in appearance even after being left at room temperature for one week. Both moldability and lubricity were good.
実施例 ５
２５ｏ０で８＄ｐｓの粘度を有する、出発物質をプロピ
レングリコールとしたプロピレンオキサイドの付加重合
物５重量部、オキソアルコールのエチレンオキサィド１
０モル付加物４重量部「トール油脂肋酸カリウム塩１．
の重量部、２００メッシュのマィカ３５重量部、ｎ−ブ
タノール１５重量部および水４の重量部を均一に混合濃
伴すると２５００で８０比ｐｓの離型剤となり、常温で
１週間放置後も外観的に何ら変化が見られず、タイヤ成
型時の離型剤として噴霧性、離型性、潤滑性共に良好で
あった。Example 5 5 parts by weight of addition polymer of propylene oxide with propylene glycol as starting material, 1 part of ethylene oxide of oxo alcohol, having a viscosity of 8 $ps at 25o0
4 parts by weight of 0 mole adduct 1.
When parts by weight of 200 mesh mica, 35 parts by weight of 200 mesh mica, 15 parts by weight of n-butanol and 4 parts by weight of water are uniformly mixed and concentrated, it becomes a mold release agent with a specific ps of 80 at 2500, and the appearance remains unchanged even after being left at room temperature for one week. No change was observed in terms of performance, and as a mold release agent during tire molding, the sprayability, mold release performance, and lubricity were all good.
Claims (1)
成物が必須の構成成分として組成物１００重量部当り、
（Ａ） ２５℃で３０〜２０００センチポイズの粘度を
有するポリオキシプロピレンポリオールまたはポリオキ
シプロピレンポリオキシエチレンランダムポリオール
２〜１０重量部（Ｂ） 高級アルコールのエチレンオキ
サイド付加物２〜１０重量部（Ｃ） 高級脂肪酸のアル
カリ金属塩 ０．５〜５重量部（Ｄ） １００〜１００
０メツシユのマイカ １５〜３５重量部を含み、２５℃
における粘度が５００〜２０００センチポイズであるこ
とを特徴とするタイヤ成型用水性内面離型剤組成物。1. In an aqueous inner mold release agent composition for tire molding, the composition contains, as an essential component, per 100 parts by weight of the composition,
(A) Polyoxypropylene polyol or polyoxypropylene polyoxyethylene random polyol having a viscosity of 30 to 2000 centipoise at 25°C
2 to 10 parts by weight (B) 2 to 10 parts by weight of ethylene oxide adduct of higher alcohol (C) Alkali metal salt of higher fatty acid 0.5 to 5 parts by weight (D) 100 to 100
Contains 15-35 parts by weight of mica of 0 mesh, 25°C
An aqueous inner mold release agent composition for tire molding, which has a viscosity of 500 to 2000 centipoise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52005886A JPS608930B2 (en) | 1977-01-24 | 1977-01-24 | Inner mold release agent composition for tire molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52005886A JPS608930B2 (en) | 1977-01-24 | 1977-01-24 | Inner mold release agent composition for tire molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5391988A JPS5391988A (en) | 1978-08-12 |
| JPS608930B2 true JPS608930B2 (en) | 1985-03-06 |
Family
ID=11623369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52005886A Expired JPS608930B2 (en) | 1977-01-24 | 1977-01-24 | Inner mold release agent composition for tire molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608930B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966434A (en) * | 1982-10-07 | 1984-04-14 | Sumitomo Rubber Ind Ltd | Mold release agent for rubber |
| JPS60154013A (en) * | 1984-01-20 | 1985-08-13 | Konan Tokushu Sangyo Kk | Manufacture of rubber mold |
| JP6713263B2 (en) * | 2015-11-06 | 2020-06-24 | 松本油脂製薬株式会社 | Release agent for tire inner surface |
| JP7564421B2 (en) * | 2020-04-02 | 2024-10-09 | 横浜ゴム株式会社 | Adhesive remover and method for removing adhesive using same |
-
1977
- 1977-01-24 JP JP52005886A patent/JPS608930B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5391988A (en) | 1978-08-12 |
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