JPS6254768A - Heat-resistant paint - Google Patents

Heat-resistant paint

Info

Publication number
JPS6254768A
JPS6254768A JP19378685A JP19378685A JPS6254768A JP S6254768 A JPS6254768 A JP S6254768A JP 19378685 A JP19378685 A JP 19378685A JP 19378685 A JP19378685 A JP 19378685A JP S6254768 A JPS6254768 A JP S6254768A
Authority
JP
Japan
Prior art keywords
heat
parts
resistant paint
weight
unit
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
Application number
JP19378685A
Other languages
Japanese (ja)
Other versions
JPH0422190B2 (en
Inventor
Yoshio Nishihara
義夫 西原
Satoshi Kodera
小寺 智
Noriyuki Isobe
磯部 典之
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP19378685A priority Critical patent/JPS6254768A/en
Priority to EP19860111801 priority patent/EP0217129B1/en
Priority to DE8686111801T priority patent/DE3667070D1/en
Publication of JPS6254768A publication Critical patent/JPS6254768A/en
Priority to US07/172,962 priority patent/US4929507A/en
Publication of JPH0422190B2 publication Critical patent/JPH0422190B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE:To obtain heat-resistant paint which has a high baking residue ratio in air and can be baked in air, by dispersing or dissolving a polymetallocarbosilane, a silicone resin and an inorg. filler in an org. solvent. CONSTITUTION:The titled heat-resistant paint is obtd. by dispersing or dissolving a polymetallocarbosilane, a silicone resin and an inorg. filler in an org. solvent. The polymetallocarbosilane contains a carbosilane linkage unit of formula I and a metalloxane linkage unit of formula II, comprises a polymer wherein the units of formulas I, II are randomly bonded in the skeleton of its main chain and/or a polymer wherein at least part of Si atoms in the unit of formula I is bonded to each element in the unit of formula II through an O atom so that the polycarbosilane moiety formed by the chains in the unit of formula I is crosslinked by the unit of formula II, and is an organo-metallic polymer having a number-average MW of 400-50,000 and a ratio of the unit of formula I to the unit of formula II of 1:1-10:1.

Description

【発明の詳細な説明】 本発明は、ポリメタロカルボシランを含有する新規な耐
熱性塗料に関する。さらに詳しくは、ポリメタロカルボ
シラン、充填剤及びシリコン樹脂を含有する新規な耐熱
性塗料に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to novel heat-resistant coatings containing polymetallocarbosilanes. More specifically, the present invention relates to a novel heat-resistant paint containing a polymetallocarbosilane, a filler, and a silicone resin.

(従来技術) 金属・非金属基材の高温における腐食、劣化を防止する
耐熱性塗料としてポリオルガノシロキサンをビヒクルと
し、各種顔料を添加した塗料が知られている。このポリ
オルガノシロキサン系塗料は、従来から公知のポリエス
テル、ポリイミド等の有W1商分子系塗料との比較では
耐熱性に優れているが、それでも400℃を越える高温
の空気雰囲気下ではa膜は基材から剥離する。
(Prior Art) Paints containing polyorganosiloxane as a vehicle and various pigments added thereto are known as heat-resistant paints that prevent corrosion and deterioration of metal and non-metallic base materials at high temperatures. This polyorganosiloxane paint has excellent heat resistance when compared with conventional W1 commercial molecular paints such as polyester and polyimide. It peels off from the material.

さらに産業の発展に伴い、例丸ば航空機部品、製鉄ある
いは金属の梢練炉の炉体及び周辺部分など1000℃を
越える高温にさらされる金属あるいは非金属基材の酸化
、腐食を防止しうる塗装材料への要求が増加してきてい
る。
Furthermore, with the development of industry, coatings that can prevent oxidation and corrosion of metal or non-metallic base materials that are exposed to high temperatures exceeding 1000°C, such as aircraft parts, ironworks, or the furnace body and surrounding parts of metal smelting furnaces, are becoming increasingly popular. Demand for materials is increasing.

特公昭159−12746号公報には、炭素とケイ素を
骨格成分とする少量の金属元素を含むポリカルボシラン
を金属材料に塗布した後非酸化性雰囲気中で800〜2
000℃に加熱焼成することにより、ポリカルボシラン
を炭化ケイ素化させる耐熱金属材料の製造方法が記載さ
れてい゛る。特開昭第55−84370号公報には、ポ
リカルボンランを含むセミ黒磯化合物にセラミックある
いは金属粉末を添加した塗料用組成物を金属あるいは非
金属材料に塗布した後、非酸化性雰囲気下で400〜2
000℃に加熱、焼き付けを行って耐熱性塗膜を得る方
法が記載されている。
Japanese Patent Publication No. 159-12746 discloses that polycarbosilane containing carbon and silicon as skeleton components and a small amount of metal elements is coated on a metal material and then heated to 800-200% in a non-oxidizing atmosphere.
A method for producing a heat-resistant metal material is described in which polycarbosilane is converted to silicon carbide by heating and firing at 000°C. Japanese Patent Application Laid-open No. 55-84370 discloses that a coating composition prepared by adding ceramic or metal powder to a semi-black iso compound containing polycarbonane is applied to a metal or non-metallic material, and then heated for 400 minutes in a non-oxidizing atmosphere. ~2
A method for obtaining a heat-resistant coating film by heating to 000° C. and baking is described.

しかし、このポリカルボンランの1000℃(空気中)
における焼成残存率は約30%(重量換W)であるため
、加熱焼き付は途中でのポリカルボシランの熱分解に伴
い、大きな体積収縮が発生する。
However, the temperature of this polycarbonate at 1000℃ (in air)
Since the residual rate after firing is about 30% (w weight equivalent), large volumetric shrinkage occurs due to thermal decomposition of polycarbosilane during baking.

このため、焼き付は塗膜の基材へのIlj′)Ii性は
不充分なものとなる。空気中など酸化性雰囲気で加熱焼
き付けを行うと、塗膜は殆ど基材から剥離する。
For this reason, the baking property of the coating film to the substrate becomes insufficient. When baking is performed in an oxidizing atmosphere such as air, most of the coating film peels off from the base material.

また生成した塗膜の耐熱性は空気中で約400℃であり
、従来からあるポリオルガノシロキサン系塗料の耐熱温
度と比較しても大きな差はない。
Furthermore, the heat resistance of the produced coating film is about 400° C. in air, which is not much different than the heat resistance temperature of conventional polyorganosiloxane paints.

(発明が解決しようとする問題点) 本発明は、空気中での焼成残存率が高く、空気中での焼
I&焼き付が可能であり、さらには空気中での耐熱温度
が高い耐熱性塗料の提供により、高温度条件下での金属
あるいは非金属基材の酸化、腐食を防止しようとするの
である。
(Problems to be Solved by the Invention) The present invention provides a heat-resistant paint that has a high firing survival rate in air, can be baked in and baked in air, and has a high heat resistance temperature in air. By providing this, it is intended to prevent oxidation and corrosion of metal or non-metallic substrates under high temperature conditions.

(問題点を解決するための手段) 本発明は、ポリメタロカルボシラン、シリコン1[1及
び無機充填剤が有機溶剤に溶解または分散されているこ
とからなる耐熱性塗料である。
(Means for Solving the Problems) The present invention is a heat-resistant paint comprising polymetallocarbosilane, silicon 1[1, and an inorganic filler dissolved or dispersed in an organic solvent.

本発明で用いるポリメタロカルボシランは、ポリメタロ
カルボシランが下記(A)カルボシラン結合単位及び少
なくとも1種の下記(B)のメチロキR+ 喜 (A): −+S 1−CH2今一 (但し%R1及びR2は同−又は異なってもよく相互に
独立に低級フルキル基、フェニール基又は水素原子を表
わす) (B ’): −+M −0? (但し、MはTi、ZrMo及びCrからなる群から選
ばれた少なくとも1種の元素を示し、場合によっては前
記各元素の少なくとも1部分がgA鎖基として低級アル
コキシ基又はフェノキシ基を少なくと   ゛も1個有
する) 前記(A)及び(B)各結合単位が主鎖骨格中でランダ
ムに結合した重合体、及び/又は前記(A)の結合単位
のケイ素原子の少な(とも1部が前記(B)の結合単位
の前記各元素と酸素原子を介して結合し、これらよって
前記(A)の結合単位の連鎖によりえられるポリカルボ
シラン部分が前記(B)の結合単位によって架橋された
重合体であり、爺?1A1f%話Δ出梧めA麺輯曲F 
/ Q Itハ話4 us位の全数の比率が1:1から
10:1の範囲にあり数平均分子量が400〜50,0
00であることからなる有機金属重合体である。
The polymetallocarbosilane used in the present invention has the following (A) carbosilane bonding unit and at least one of the following (B) methylocarbosilane R+ joy (A): -+S 1-CH2 Imaichi (however, %R1 and R2 may be the same or different and independently represent a lower furkyl group, a phenyl group or a hydrogen atom) (B'): -+M -0? (However, M represents at least one element selected from the group consisting of Ti, ZrMo, and Cr, and in some cases, at least one part of each of the above elements has at least a lower alkoxy group or a phenoxy group as a gA chain group. A polymer in which each of the bonding units of (A) and (B) are randomly bonded in the main chain skeleton, and/or a polymer in which the bonding units of (A) have a small number of silicon atoms (in both cases, a portion of the bonding units are The polycarbosilane moiety obtained by the chaining of the bonding units of (A) is bonded to each of the above elements of the bonding unit of (B) via an oxygen atom, and the polycarbosilane moiety obtained by the chaining of the bonding units of (A) is It is a combination, old man? 1A1f% story Δ Degome A noodles song F
/ Q Itha story 4 The ratio of the total number of us is in the range of 1:1 to 10:1 and the number average molecular weight is 400 to 50.0
It is an organometallic polymer consisting of 00.

前記ポリメタロカルボシランは主鎖骨格が主として→S
i  CH2+−の構造単位よりなるポリカルボシラン
と一+M−〇′+−結合単位の金属アルコキシドから誘
導される高分子共重合体であり、これを原料とする紡糸
繊維が従来のポリカルボシランから得られる繊維よりも
耐熱性が優れていることが特願昭54−149977に
示されている。
The main chain skeleton of the polymetallocarbosilane is mainly →S
It is a polymer copolymer derived from polycarbosilane consisting of i CH2+- structural units and metal alkoxide having 1+M-〇'+- bonding units, and the spun fiber made from this is different from conventional polycarbosilane. It is shown in Japanese Patent Application No. 54-149977 that the heat resistance is superior to that of the resulting fibers.

このポリメタロカルボシランとシリコン樹脂及び無機充
填剤とからなる塗料を金属・非金属基材に塗布した後、
酸化性あるいは非酸化性雰囲気中で200〜2000℃
の加熱、焼付を行って得られる塗膜が前記のポリカルボ
シランから成る塗膜よりも下地の金属・非金属基体への
密着性が良く、耐熱性も優れていることを見出だし、本
発明に到達した。
After applying this paint consisting of polymetallocarbosilane, silicone resin, and inorganic filler to metal/nonmetal substrates,
200-2000℃ in oxidizing or non-oxidizing atmosphere
It has been discovered that the coating film obtained by heating and baking the above-mentioned polycarbosilane has better adhesion to the underlying metal/non-metal substrate and has better heat resistance than the coating film made of polycarbosilane. reached.

本発明で用いるポリメタロカルボシランは、空気雰UH
z下で1000℃で10時間以上熱処理しでも加熱減量
は僅かに10〜15重量%に過ぎないため、焼付塗膜の
重量減少による収縮、ヒビ割れは起りに<<1.したか
って形成された焼付後の塗膜はIIk密質である。
The polymetallocarbosilane used in the present invention can be used in an air atmosphere of UH.
Even after heat treatment at 1000°C for 10 hours or more under The thus formed coating film after baking is IIk dense.

また、ポリメタロカルボシランは金属を含有するため、
これを特に金属基材表面に焼き付けると超微粒子の金属
化物あるいは金属酸化物が塗膜と鋸基材の間に強固な結
合を形成するために空気中、i 000℃以上でも剥離
しない緻密な保i11!層を形成する。おなしようにセ
ラミック、ガラス表面上においても前記超微粒子がバイ
ングーとしての機能をも有するので、強固に結合した塗
膜を形成する。
In addition, since polymetallocarbosilane contains metal,
When this is baked onto the surface of a metal substrate, the ultrafine particles of metallization or metal oxide form a strong bond between the coating and the saw substrate, creating a dense bond that will not peel off even in the air at temperatures above 1,000°C. i11! form a layer. Similarly, on ceramic and glass surfaces, the ultrafine particles also have the function of binder, forming a strongly bonded coating film.

更に、このポリメタロカルボシランとシリコン樹脂及び
無機充填剤とから成る塗膜はポリメタロカルボシラン単
独から成る塗膜よりも強固に基材に密着し、更に耐熱性
を向上させると共に可撓性にも優れる。
Furthermore, this coating film made of polymetallocarbosilane, silicone resin, and inorganic filler adheres more firmly to the base material than a coating film made of polymetallocarbosilane alone, and further improves heat resistance and flexibility. Also excellent.

ポリメタロカルボシラン100iii部に対しシリコン
樹脂を10〜900重量1ILPましくは50〜500
重量部添加する。シリコン樹脂の添加量が10部以下で
あると焼付塗膜の可撓性が劣り、シリコン樹脂の添加量
が900重量部をこえるとシリコン樹脂の分解温度以上
の高温での耐熱性が損なわれる。本発明で使用するシリ
コン樹脂は、ポリオルガノシロキサン、ジルコンオイル
、シリコンゴムス、及びシリコンゴムからなる群から選
ばれた少なくともl111である。
10 to 900 parts by weight of silicone resin per 100iii parts of polymetallocarbosilane or 1 ILP or 50 to 500 parts by weight
Add part by weight. If the amount of silicone resin added is less than 10 parts, the flexibility of the baked coating film will be poor, and if the amount of silicone resin added is more than 900 parts by weight, the heat resistance at high temperatures above the decomposition temperature of the silicone resin will be impaired. The silicone resin used in the present invention is at least 1111 selected from the group consisting of polyorganosiloxane, zircon oil, silicone rubber, and silicone rubber.

更に無機充填剤をポリメタロカルボシラン100重N部
に対して10〜900重鼠好まし重置50〜500重駄
部加える。無機充填材の添加量が10部以下であると焼
付塗膜の基材に対する密着性が劣り、また900重量部
をこえると塗膜の可撓性が低下する。
Further, an inorganic filler is added in an amount of 10 to 900 parts by weight, preferably 50 to 500 parts by weight per 100 parts by weight of the polymetallocarbosilane. If the amount of the inorganic filler added is less than 10 parts, the adhesion of the baked coating film to the substrate will be poor, and if it exceeds 900 parts by weight, the flexibility of the coating film will be reduced.

本発明で用いる無機充填剤は公知添加剤、ホウ素、マグ
ネシウム、アルミニウム、ケイ素、カルシウム、チタン
、バナゾウム、クロム、マンがン、亜鉛、ジルコニウム
、モリブデン、カドミウム、スχ、アンチモン、バリウ
ム、タングステン、鉛、ビスマスの酸化物、それらの炭
化物、それらの窒化物、リチウム、ナトリウム、カリウ
ム、マグネシウム、カルシウム、亜鉛のホウ酸塩、リン
酸塩、ケイ酸塩などである。
The inorganic fillers used in the present invention are known additives such as boron, magnesium, aluminum, silicon, calcium, titanium, vanadium, chromium, manganese, zinc, zirconium, molybdenum, cadmium, sulfur χ, antimony, barium, tungsten, and lead. , bismuth oxides, their carbides, their nitrides, borates, phosphates, silicates of lithium, sodium, potassium, magnesium, calcium, zinc, etc.

これらは単独で使用しても良く、又混合して使用しでも
良い。
These may be used alone or in combination.

ポリメタロカルボシラン、シリコン樹脂及び無機光JI
E uをベンゼン、トルエン、キシレン等の適当な溶剤
に溶解又は分散させて塗料を得る。
Polymetallocarbosilane, silicone resin and inorganic light JI
A paint is obtained by dissolving or dispersing Eu in a suitable solvent such as benzene, toluene, or xylene.

この塗料を金属基材あるいはガラス、セラミック耐火レ
ンガ等の非金属基材にハケ塗り、ロールコータ、スプレ
ィガン、浸漬等の方法で塗布した後、乾燥焼付を行なう
This paint is applied to a metal base material or a non-metal base material such as glass or ceramic refractory brick by brushing, roll coater, spray gun, dipping, or the like, and then dried and baked.

塗布量は20〜100g/w+’が一般に望ましい。A coating amount of 20 to 100 g/w+' is generally desirable.

20g/m”以下ではピン氷−ルが発生し結文性が低下
する。一方100g/w”以上では焼付時に塗膜の割れ
が発生し易いので好ましくない。
If it is less than 20 g/m'', pin ice will occur and the setting property will be reduced. On the other hand, if it is more than 100 g/w'', the coating film is likely to crack during baking, which is not preferable.

焼付温度は、150℃以上が好ましいが、塗装後被塗装
物が150℃以上の使用環境に置かれる場合には特に焼
付工程を設けなくとも良い、焼付温度が150℃以下で
は塗膜の強度が低く、硬度、1HwJ撃性とも劣るので
好ましくない。
The baking temperature is preferably 150°C or higher, but if the object to be coated is placed in an environment of 150°C or higher after painting, there is no need to carry out a baking process. It is not preferable because it has low hardness and poor 1HwJ impact resistance.

本発明の1熱性塗料から得られる焼付塗膜は耐熱性に優
れ同時に良好な耐食性、耐衝撃性お上り可撓性を示す。
The baked paint film obtained from the one-heat paint of the present invention has excellent heat resistance and at the same time exhibits good corrosion resistance, impact resistance, and flexibility.

以下実施例により、更に具体的に説明する。なお、参考
例及び実施例において、%及び部は特に断りのない限り
重量%及び重ii部を示している。
A more specific explanation will be given below with reference to Examples. In the Reference Examples and Examples, % and parts indicate weight % and parts by weight unless otherwise specified.

(参考例1) 51の三ロフラスコに無水キシレン2.51とナトリウ
ム400gとを入れ、窒素ガス気流下でキシレンの沸点
まで加熱し、ツメチルジクロロシランIIlを1時間で
滴下した0滴下終了後、10時間加熱還流し沈澱物を生
成させた。この沈澱を濾過し、まずメタノールで洗浄し
た後、水で洗浄して、白色粉末のポリツメチルシラン4
20.を得た。
(Reference Example 1) 2.51 g of anhydrous xylene and 400 g of sodium were put in a 3-lough flask, heated to the boiling point of xylene under a nitrogen gas stream, and trimethyldichlorosilane IIl was added dropwise over 1 hour. After the completion of the 0 dropwise addition, The mixture was heated under reflux for 10 hours to form a precipitate. This precipitate was filtered and washed first with methanol and then with water to obtain a white powder of polymethylsilane 4.
20. I got it.

上記のポリジメチルシラン400gを、γス導入管、攪
拌機、冷却器および留出管を備えた31の三つロフラス
コに仕込み、攪拌しながら窒素気流下(50vsl /
5in)で、420℃で加熱処理することによって留出
容器に3508の無色透明な少し粘性のある液体を得た
。この液体の数平均分子量は蒸気圧浸透法、(vpo法
)により測定したところ470であった。
400 g of the above polydimethylsilane was charged into 31 three-necked flasks equipped with a gamma gas inlet tube, a stirrer, a condenser, and a distillation tube.
A colorless, transparent, slightly viscous liquid of 3508 was obtained in the distillation vessel by heat treatment at 420°C. The number average molecular weight of this liquid was determined to be 470 by vapor pressure osmosis (VPO method).

またこの物質の遠赤外吸収の測定により主として→Si
  CH2+−結合単位および→5iSi+結合単位か
らなり、ケイ素の側鎖に水素原子及びメチル基を有する
有機ケイ素ポリマーであることを確認した。
Furthermore, measurements of far-infrared absorption of this material revealed that mainly →Si
It was confirmed that it was an organosilicon polymer consisting of CH2+- bond units and →5iSi+ bond units and having hydrogen atoms and methyl groups in the silicon side chains.

(参考例2) 次にこの有機ケイ素ポリマー40gとチタンテトライソ
プロポキシド20gとを秤取し、この混合物にキシレン
400mff1を加えて均一相からなる混合溶液とし、
窒素がス雰囲気下で、130℃で1時(]攪袢しながら
還流反応を行なった。3il流反応終了後、さらに温度
を上昇させて溶媒のキシレンを留出させたのち、300
℃で10時間重合を行ないシリコンとチタンを含有する
有機金属架III重合体を得た。この重合体の数平均分
子量はvpo法により測定したところ1165″Chあ
った。
(Reference Example 2) Next, 40 g of this organosilicon polymer and 20 g of titanium tetraisopropoxide were weighed, and 400 mff1 of xylene was added to this mixture to make a mixed solution consisting of a homogeneous phase.
A reflux reaction was carried out under a nitrogen gas atmosphere at 130°C for 1 hour with stirring. After the completion of the 3il flow reaction, the temperature was further raised to distill out the solvent xylene, and then
Polymerization was carried out at .degree. C. for 10 hours to obtain an organometallic cross-linked III polymer containing silicon and titanium. The number average molecular weight of this polymer was 1165''Ch as measured by the vpo method.

デルパーミエーシ5ンクロマトグラ7、赤外吸収スペク
トルからここで得られたポリマーは、有機ケイ素ポリマ
ー中の5i−H結合が−W6消失し、この部分のケイ素
原子が、チタンテトライソプロポキシドのチタン原子と
酸素原子を介して結合し、これによって一部は有機ケイ
素ポリマーのll鎖に−077i(OC3)(?)3基
を有し、また一部は有機ケイ素ポリマーが→Ti−0+
−結合で架橋したポリチタノカルボシランであり、この
ポリマー中のSi  H結介部分での反応率および/又
は架橋率は、44.5%である。このポリマーの有機ケ
イ素ポリマ一部什の一+S i −、CHd””結合単
位−+S i−S iセ結合単位の全数対−〇 −T 
i(OC4H,)、および−Ti−0−結合単位の全数
の比率は約6:1であることを確認した。
The polymer obtained here from the infrared absorption spectrum of the Del Permeability 5-in chromatograph 7 shows that the 5i-H bond in the organosilicon polymer has disappeared -W6, and the silicon atom in this part is combined with the titanium atom of titanium tetraisopropoxide and oxygen. bonded through atoms, whereby some organosilicon polymers have -077i(OC3)(?)3 groups in the 11 chain, and some organosilicon polymers have →Ti-0+
It is a polytitanocarbosilane crosslinked with - bonds, and the reaction rate and/or crosslinking rate at the Si H binding moiety in this polymer is 44.5%. One tithe of the organosilicon polymer of this polymer + S i -, CHd "" bonding units - + S i - Si - total number of bonding units - 〇 -T
It was confirmed that the ratio of the total number of i(OC4H,) and -Ti-0- bonding units was approximately 6:1.

上記反応生成物をキシレンに溶W#させて固形分が50
%の溶液とした。
The above reaction product was dissolved in xylene and the solid content was 50%.
% solution.

(@4例3) 参考例2における出発物質の1つであるチタンテトライ
ソプロポキシドの代わりに、ジルコニウムテトライソプ
ロポキシド、クロミウムトリメトキシドまたはモリブデ
ントリフェノキシドをそれぞれ用いてポリジルコ/IJ
)レボシラン、ポリクロノカルボシランまたはボリモリ
プデリカルボシランを得た。反応条件、繰作法は参考例
2と実質的に同一である。
(@4 Example 3) In place of titanium tetraisopropoxide, one of the starting materials in Reference Example 2, zirconium tetraisopropoxide, chromium trimethoxide, or molybdenum triphenoxide was used to prepare polyzirco/IJ.
) Levosilane, polychronocarbosilane or bolimolypdecarbosilane were obtained. The reaction conditions and operation method are substantially the same as those in Reference Example 2.

〔実施例1〕 参考例2のポリチタノカルボシランのキシ9250%1
llli30部、メチルフェニルシリコンオイルの50
%キシレン溶液(東芝シリコン社製TSR−116)3
0部及び二酸化チタン・10部を混合して耐熱塗料を得
た。この塗料を1m111厚のステンレス鋼板(SUS
304)にパーコータを用いて約50μ厚に塗布した後
200℃で1時開オーブン中で焼付けたこの焼付塗装鋼
板を1000℃オーブン中にて96時間加熱した後、オ
ーブンから取り出して空気中で除冷した。
[Example 1] Oxygen 9250% 1 of polytitanocarbosilane of Reference Example 2
30 parts of llli, 50 parts of methylphenyl silicone oil
% xylene solution (TSR-116 manufactured by Toshiba Silicon Corporation) 3
A heat-resistant paint was obtained by mixing 0 parts of titanium dioxide and 10 parts of titanium dioxide. Apply this paint to a 1m111 thick stainless steel plate (SUS).
304) to a thickness of approximately 50 μm using a percoater and baked at 200°C in an oven that was open for 1 hour. After heating this baked-on coated steel plate in a 1000°C oven for 96 hours, it was removed from the oven and removed in air. It got cold.

この塗膜の基材への″e着性を評価するために塗膜に2
1Ifi幅で縦11本、横11本の素地に達する切り込
みをカッターナイフで入れ、合計100個のゴバン目を
作り、その表面に粘着セロハンテープを貼り付け、それ
を急激にはがした後のゴバン目における塗膜の残存数を
調べたところ、95/100と非常に良好な密着性を示
した。
In order to evaluate the adhesion of this coating film to the substrate, two
Use a cutter knife to make 11 vertical and 11 horizontal cuts into the base material with a width of 1 Ifi, making a total of 100 gobans, paste adhesive cellophane tape on the surface, and peel it off rapidly. When the number of remaining coating films on the eyes was examined, it was found to be 95/100, indicating very good adhesion.

〔実施例2〕 8巧゛例3のポリジルコアカルボシラン250%溶液4
0部ジメチルシリコンオイル(来夏ン’) ニア 7社
lTsF431)40n及(/,1%’7酸カリウム2
0部を混合し、この組成物100重量部当たり50重重
量のキシレンを添加して耐熱塗料を得た。この塗料に0
 、 5 arm厚のチタン板を浸漬、塗付した後、2
00℃のオープン中にて1時間焼付けた。
[Example 2] 250% polyzyl core carbosilane solution 4 of Example 3
0 parts dimethyl silicone oil (next summer') Near 7 companies lTsF431) 40n and (/, 1%' Potassium heptaate 2
0 parts by weight were mixed, and 50 parts by weight of xylene was added per 100 parts by weight of this composition to obtain a heat-resistant paint. 0 for this paint
, After dipping and coating a 5 arm thick titanium plate, 2
It was baked for 1 hour in the open at 00°C.

この焼付塗装チタン板についてヒートサイクルテスト(
常温1時間−1 000℃オージオ−フン中間)を10
回行ったが塗膜の外観には全く変化はなく、塗膜の基材
からの剥離も見られなかった。
Heat cycle test (
1 hour at room temperature - 1 000℃ audio - 10
Although the coating was repeated several times, there was no change in the appearance of the coating film, and no peeling of the coating film from the base material was observed.

〔実施例3〕 参考例3のポリそりプデ7カルボシランのキシレン50
%溶a6on、メチルフェニルシリコンオイル(来夏シ
リコン社製TSF−451)20部及びタルク20部を
混合して耐熱塗料を得た.この塗料を1曽−厚のステン
レス鋼板(SUS304)に刷毛塗り塗布した後250
℃にて1時間オーブン中で焼付けた。
[Example 3] Xylene 50 of polysilipude 7 carbosilane of Reference Example 3
A heat-resistant paint was obtained by mixing 20 parts of methylphenyl silicone oil (TSF-451, manufactured by Next Summer Silicon Co., Ltd.) and 20 parts of talc. After applying this paint to a 1-thick stainless steel plate (SUS304) with a brush,
Bake in the oven for 1 hour at °C.

この焼付塗装鋼板を1000℃のオープン中にて96時
間加熱した後空気中で徐冷し、塗膜の密着性を実施例と
同じ方法で評価したところ、92/100と非常に良好
な結果を得た。
This baked-coated steel plate was heated at 1000°C for 96 hours in the open air, then slowly cooled in the air, and the adhesion of the paint film was evaluated using the same method as in the examples.The result was a very good result of 92/100. Obtained.

〔実施例4〕 参考例3のボリクaシモ力ルボシランのキシレン50%
fif150m、メチルフェニルシリコンフェスの50
%キシレン溶液(来夏シリコン社WTSR−1 1 6
)208%,酸化ホウ素30部を混合して耐熱塗料を得
た.この塗料を1m霞厚のニッケル板にパーコータを用
いて40μ厚な塗布したのち200℃で1時間オーブン
中で焼付けた。
[Example 4] 50% xylene of Boric a-Simosilane of Reference Example 3
fif150m, methylphenyl silicon festival 50
% xylene solution (next summer silicon company WTSR-1 1 6
)208% and 30 parts of boron oxide were mixed to obtain a heat-resistant paint. This paint was applied to a 1 m thick nickel plate using a percoater to a thickness of 40 μm, and then baked in an oven at 200° C. for 1 hour.

この焼付塗装ニッケル板を1000℃のオープン中にて
3時間加熱した後、空気中で徐冷し、塗膜の密着性を実
施例1と同じ方法で評価したところ95/100であっ
た。
This baked-coated nickel plate was heated in an open environment at 1000° C. for 3 hours, then slowly cooled in air, and the adhesion of the coating film was evaluated in the same manner as in Example 1 and found to be 95/100.

〔実施例5〕 参考例2のポリチタノカルボシランのキシレン50%溶
液80部、メチルフェニルシリコンフェスへの50%キ
シレン溶液(来夏シリコン社!!!TSR−1 1 6
)1 0部、二酸化スズ10部を混合して耐熱塗料を得
た。この塗料を0.5鵠論厚のチタン板にローラーコー
ティングし200℃で1時間オープン中で焼付けた。
[Example 5] 80 parts of a 50% xylene solution of the polytitanocarbosilane of Reference Example 2, a 50% xylene solution to methylphenyl silicone face (next summer Silicon Company!!!TSR-1 1 6
) and 10 parts of tin dioxide were mixed to obtain a heat-resistant paint. This paint was roller coated on a titanium plate with a thickness of 0.5 mm and baked at 200° C. for 1 hour in an open environment.

この焼付塗装チタン板についてヒートサイクルテスト(
常温1時間−1000℃1時間)を5回行ったが、塗膜
の外観変化、基材からの剥離ともに見られなかった。
Heat cycle test (
Although the treatment was repeated 5 times at room temperature for 1 hour to 1000° C. for 1 hour, no change in the appearance of the coating film or peeling from the substrate was observed.

〔比較例1〕 参考例1で得たポリカルボシランのキシレン50%ff
[30?i、メチルフェニルシリコンフェスの50%キ
シレン溶液(来夏シリコン社製TSR116)30部、
酸化アルミニウム粉末40glSを混合して塗料とした
。この塗料をバーコータによQ1mm厚のステンレス鋼
板に約50μ厚に塗布した後、200℃で1時間オープ
ン中で焼付けた。
[Comparative Example 1] Polycarbosilane obtained in Reference Example 1 xylene 50%ff
[30? i, 30 parts of 50% xylene solution of methylphenyl silicon face (TSR116 manufactured by Next Summer Silicon Co., Ltd.),
A paint was prepared by mixing 40glS of aluminum oxide powder. This paint was applied to a thickness of about 50 μm on a Q1 mm thick stainless steel plate using a bar coater, and then baked at 200° C. for 1 hour in an open environment.

この焼付塗装鋼板を600℃オープン中にて10時間加
熱した後、空気中で除冷し、実施例1と同じ方法で塗膜
の密着性を評価したところ58/100であった。
This baking-painted steel plate was heated at 600° C. for 10 hours in the open air, then slowly cooled in air, and the adhesion of the coating film was evaluated in the same manner as in Example 1 and found to be 58/100.

〔比較例2〕 参考例2のポリチタノカルボシランの50%キシレン溶
液、50部、ノチルフェニルシリコンフェスの50%キ
シレン溶8!(来夏シリコン社%tTRS−116)5
0部を混合して塗料を得た.この塗料ヲパーコータによ
り1@輸厚のステンレス鋼板に約50μ厚に塗布した後
、200℃でIEl開オープン中で焼付けた。
[Comparative Example 2] 50 parts of 50% xylene solution of polytitanocarbosilane of Reference Example 2, 50% xylene solution of notylphenyl silicon face 8! (Next Summer Silicon Company%tTRS-116) 5
A paint was obtained by mixing 0 parts. This paint was applied to a thickness of about 50 μm on a stainless steel plate with a thickness of 1 using a Wopercoater, and then baked at 200° C. in an IEL open-circuit.

この焼付塗装鋼板を1’ 0 0 0℃オープン中にて
1時間加熱した後取出して空気中で放冷し実施例1と同
じ方法で塗膜の密着性を評価したところ62/100で
あった。
This baking-painted steel plate was heated at 1'000°C in an open room for 1 hour, then taken out and left to cool in the air, and the adhesion of the coating film was evaluated in the same manner as in Example 1, and it was found to be 62/100. .

〔比較例3〕 参考例1で得たポリカルボシランのキシレン50%溶液
;30部、カーボランダム粉末70部を混合して塗料を
得た。この塗料に0 、5 ms厚のチタン板を浸漬、
塗布した後、200℃のオーブン中にて1時間焼付けた
[Comparative Example 3] A coating material was obtained by mixing 30 parts of a 50% xylene solution of the polycarbosilane obtained in Reference Example 1 and 70 parts of carborundum powder. A titanium plate with a thickness of 0.5 ms was immersed in this paint.
After coating, it was baked in an oven at 200°C for 1 hour.

この焼付塗装チタン板についてヒートサイクル・テスト
(常温1時間−1000℃オープン中1vP闇)を10
回行ったところ、塗膜の一部が剥離し、亀裂が見られた
This baked-on titanium plate was subjected to a heat cycle test (1 hour at room temperature - 1000℃ open and 1vP dark) for 10 minutes.
When I went over it several times, I found that some of the paint had peeled off and cracks were visible.

特許出願人 宇部9!産株式会社 代 理 人 弁理士 小田島 平 吉゛外1名 手続補正書(帥) 昭和60年1り月!9日 特許庁長官 宇゛賀 道 部 殿 1、事件の表示 昭和60年特許m第193786号 2、発明の名称 耐熱性塗料 3、補正をする者 事件との関係  特許出願人 名 称(weン宇部興産株式会社 4、代理人 〒107 電話  585−2256 5、補正命令の日付    な   し6、補正の対象 7、補正の内容 (1) 本願明細書記載の特許請求の範囲を次のとおり
に訂正する。
Patent applicant Ube 9! Sansan Co., Ltd. Agent Patent Attorney Taira Odajima and one other person Procedural Amendment (Chief) January 1985! 9th Japan Patent Office Commissioner Michibe Uga 1, Indication of the case 1985 Patent No. 193786 2, Name of the invention Heat-resistant paint 3, Person making the amendment Relationship to the case Patent applicant name (We Ube) Kosan Co., Ltd. 4, Agent 107 Telephone: 585-2256 5, Date of amendment order None 6, Subject of amendment 7, Contents of amendment (1) The scope of claims stated in the specification of the present application is corrected as follows. .

R2,*許舶求の@皿 (1) ボリメ、p oカルボシラン、シリコン樹脂及
び無機充填剤が有機溶剤に分散又は溶解されていること
を特徴とする耐熱性塗料。
R2, *Request for permission@dish (1) A heat-resistant paint characterized in that Volime, po carbosilane, silicone resin, and inorganic filler are dispersed or dissolved in an organic solvent.

(2) ボリメLロカルボシランが下記(A)カルボシ
ラン結合単位及び少なくとも1種の下記(13)のメタ
ロキサン結合単位からなり、 (A ) :  1S i −CH2←(但し、R,及
びR1は同−又は異なってもよく相互に独立に低級フル
キル基、フェニール基又は水素原子を表す) (B):  fM−0+− (但し、MはTi、 Zr、Mo及びC「からなる群か
ら選ばれた少なくとも1種の元素を示し、場合によって
は前記各元素の少なくとも1部分が側鎖基として低t&
フル′:I斗シ基又はフェノキシ基を少なくとも1個有
する) 前記(A)及び(B)各結合単位が主鎖骨格中でランダ
ムに結合した重合体、及び/又は前記(A)の結合単位
のケイ索原子の少なくともlが前記(B)の結合単位の
前記各元素と酸素原子を介して結合し、これによって前
記(A)の結合単位の連鎖によりえられるポリカルボシ
ラン部分が前記(B)の結合単位によって架橋された重
合体であり、前記(A)の結合単位の全数対前記(B)
の結合単位の全数の比率が1:1から10:1の範囲に
あり数平均号子量が400〜so、oooであることを
特徴とする特許請求の範囲mi項に記載の耐熱性塗料。
(2) Volume L locarbosilane consists of the following (A) carbosilane bonding unit and at least one metalloxane bonding unit of the following (13), (A): 1S i -CH2← (However, R and R1 are the same - or (B): fM-0+- (However, M is at least one selected from the group consisting of Ti, Zr, Mo and C. In some cases, at least a portion of each of the above elements is a low t &
Full': A polymer in which the bonding units of (A) and (B) are randomly bonded in the main chain skeleton, and/or the bonding unit of (A). At least 1 of the silicon atoms of the bonding unit of (B) are bonded to each of the elements of the bonding unit of (B) via an oxygen atom, so that the polycarbosilane moiety obtained by the chain of the bonding units of (A) is ) is a polymer crosslinked by the bonding units of (A) to the total number of bonding units of (B).
The heat-resistant paint according to claim 1, wherein the ratio of the total number of bonding units is in the range of 1:1 to 10:1, and the number average molecular weight is 400 to so, ooo.

(3) シリコン樹脂が、ポリオルガノシロ斗サン、シ
リコンオイル、シリコンオイル、シリコンゴムからなる
群から選ばれたものである特許請求の範囲第1項記載の
耐熱性塗料。
(3) The heat-resistant paint according to claim 1, wherein the silicone resin is selected from the group consisting of polyorganosiloxane, silicone oil, silicone oil, and silicone rubber.

(4)!’a磯充項材が酸化物、ホウ酸塩、リン酸塩、
tイ酸塩、ケイ刃物、窒化物ホウ化物及び炭化物からな
る群から選ばれた少なくとも1種である特許請求の範囲
第1項記載の耐熱性塗料。
(4)! 'a Isochang materials are oxides, borates, phosphates,
The heat-resistant paint according to claim 1, which is at least one selected from the group consisting of t-salts, silicon cutlery, nitride borides, and carbides.

(5)前記ポリカルボシラン100重量部に対してシリ
コン樹脂が10〜900重量部、前記熊洗光横削が10
〜900重量部であることを特徴とする特許、l11求
の範囲第1項記載の耐熱性塗料。」(2) 本願明細1
!j第5真12行記載のししようとするのである。」を
「しようとするものである。」と訂11:、する。
(5) The silicone resin is 10 to 900 parts by weight with respect to 100 parts by weight of the polycarbosilane.
900 parts by weight of the heat-resistant paint according to item 1 of the patent. (2) Specification 1 of the present application
! This is what is written in the 12th line of the 5th line. " is changed to "is something that attempts to do." Correction 11:.

(3) 同第5頁19行記載の1メチロキJを「メタロ
キ」と訂正する。
(3) 1 METHYROKI J written on page 5, line 19 is corrected to "Metalloki".

(4)同第6真下41?の1これらよって」を「これに
よって」と訂正する。
(4) 41 directly below No. 6? 1. Correct "by these" to "by this."

Claims (5)

【特許請求の範囲】[Claims] (1)ポリメチロカルボシラン、シリコン樹脂及び無機
充填剤が有機溶剤に分散又は溶解されていることを特徴
とする耐熱性塗料。
(1) A heat-resistant paint characterized in that polymethylocarbosilane, silicone resin, and inorganic filler are dispersed or dissolved in an organic solvent.
(2)ポリメチロカルボシランが下記(A)カルボシラ
ン結合単位及び少なくとも1種の下記(B)のメタロキ
サン結合単位からなり、 ▲数式、化学式、表等があります▼ (但し、R_1及びR_2は同一又は異なってもよく相
互に独立に低級アルキル基、フェニール基又は水素原子
を表わす) (B):−(M−O)− (但し、MはTi、Zr、Mo及びCrからなる群から
選ばれた少なくとも1種の元素を示し、場合によっては
前記各元素の少なくとも1部分が側鎖基として低級アル
コキシ基又はフェノキシ基を少なくとも1個有する) 前記(A)及び(B)各結合単位が主鎖骨格中でランダ
ムに結合した重合体、及び/又は前記(A)の結合単位
のケイ素原子の少なくとも1部が前記(B)の結合単位
の前記各元素と酸素原子を介して結合し、これらよって
前記(A)の結合単位の連鎖によりえられるポリカルボ
シラン部分が前記(B)の結合単位によって架橋された
重合体であり、前記(A)の結合単位の全数対前記(B
)の結合単位の全数の比率が1:1から10:1の範囲
にあり数平均分子量が400〜50,000であること
を特徴とする特許請求の範囲第1項に記載の耐熱性塗料
(2) Polymethylocarbosilane consists of the following (A) carbosilane bonding unit and at least one type of the following (B) metalloxane bonding unit, ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (However, R_1 and R_2 are the same or (B): -(M-O)- (However, M is selected from the group consisting of Ti, Zr, Mo and Cr) at least one element, and in some cases, at least a portion of each element has at least one lower alkoxy group or phenoxy group as a side chain group) Each of the bonding units (A) and (B) has a main chain skeleton. and/or at least a portion of the silicon atoms of the bonding unit of (A) are bonded to each of the elements of the bonding unit of (B) via oxygen atoms, and thus the A polymer in which the polycarbosilane moiety obtained by chaining the bonding units of (A) is crosslinked by the bonding units of (B), and the total number of bonding units of (A) is
2. The heat-resistant paint according to claim 1, wherein the ratio of the total number of bonding units in ) is in the range of 1:1 to 10:1 and the number average molecular weight is 400 to 50,000.
(3)シリコン樹脂が、ポリオルガノシロキサン、シリ
コンオイル、シリコンワニス、シリコンゴムからなる群
から選ばれたものである特許請求の範囲第1項記載の耐
熱性塗料。
(3) The heat-resistant paint according to claim 1, wherein the silicone resin is selected from the group consisting of polyorganosiloxane, silicone oil, silicone varnish, and silicone rubber.
(4)無機充填剤が酸化物、ホウ酸塩、リン酸塩、ケイ
酸塩、ケイカ物、窒化物ホウ化物及び炭化物からなる群
から選ばれた少なくとも1種である特許請求の範囲第1
項記載の耐熱性塗料。
(4) Claim 1, wherein the inorganic filler is at least one selected from the group consisting of oxides, borates, phosphates, silicates, silicates, nitrides, borides, and carbides.
Heat-resistant paint as described in section.
(5)前記ポリカルボシラン100重量部に対してシリ
コン樹脂が10〜900重量部、前記無機充填剤が10
〜900重量部であることを特徴とする特許請求の範囲
第1項記載の耐熱性塗料。
(5) 10 to 900 parts by weight of the silicone resin and 10 parts by weight of the inorganic filler per 100 parts by weight of the polycarbosilane.
The heat-resistant paint according to claim 1, characterized in that the amount is 900 parts by weight.
JP19378685A 1985-08-27 1985-09-04 Heat-resistant paint Granted JPS6254768A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP19378685A JPS6254768A (en) 1985-09-04 1985-09-04 Heat-resistant paint
EP19860111801 EP0217129B1 (en) 1985-08-27 1986-08-26 Heat-resistant paint comprising polymetallocarbosilane
DE8686111801T DE3667070D1 (en) 1985-08-27 1986-08-26 Heat-resistant paint comprising polymetallocarbosilane
US07/172,962 US4929507A (en) 1985-08-27 1988-03-23 Heat-resistant paint comprising polymetallocarbosilane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19378685A JPS6254768A (en) 1985-09-04 1985-09-04 Heat-resistant paint

Publications (2)

Publication Number Publication Date
JPS6254768A true JPS6254768A (en) 1987-03-10
JPH0422190B2 JPH0422190B2 (en) 1992-04-15

Family

ID=16313769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19378685A Granted JPS6254768A (en) 1985-08-27 1985-09-04 Heat-resistant paint

Country Status (1)

Country Link
JP (1) JPS6254768A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63250012A (en) * 1987-04-07 1988-10-17 昭和電線電纜株式会社 Heat resisting insulated wire
WO1989006261A1 (en) * 1987-12-28 1989-07-13 Nippon Carbon Co., Ltd. Heat- and corrosion-resistant composition
CN1071623C (en) * 1994-12-16 2001-09-26 株式会社利根 Electric sedimentation grinding wheel for cast iron
JP2005322810A (en) * 2004-05-10 2005-11-17 Tdk Corp Rare earth magnet
WO2013046489A1 (en) * 2011-09-30 2013-04-04 日本特殊陶業株式会社 Lubricating coating composition and attachment component for internal combustion engine
US9410468B2 (en) 2013-04-30 2016-08-09 Ngk Spark Plug Co., Ltd. Temperature sensor attachment member treated with dry film lubricant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1967380B1 (en) * 2005-12-21 2014-02-12 NGK Insulators, Ltd. Marking composition and information display method
KR102237798B1 (en) * 2020-06-16 2021-04-08 윤숙현 Method for manufacturing inorganic ceramic heat-resistant coating material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434332A (en) * 1977-08-23 1979-03-13 Kansai Paint Co Ltd Inorganic paint composition
JPS5441937A (en) * 1977-09-08 1979-04-03 Kansai Paint Co Ltd Film-forming composition
JPS56151732A (en) * 1980-04-28 1981-11-24 Satoshi Yajima Polycarbosilane containing metalloxane bond partly and its preparation
JPS58132026A (en) * 1983-01-13 1983-08-06 Tokushu Muki Zairyo Kenkyusho New polyzirconocarbosilane
JPS58132025A (en) * 1983-01-13 1983-08-06 Tokushu Muki Zairyo Kenkyusho New polytitanocarbosilane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434332A (en) * 1977-08-23 1979-03-13 Kansai Paint Co Ltd Inorganic paint composition
JPS5441937A (en) * 1977-09-08 1979-04-03 Kansai Paint Co Ltd Film-forming composition
JPS56151732A (en) * 1980-04-28 1981-11-24 Satoshi Yajima Polycarbosilane containing metalloxane bond partly and its preparation
JPS58132026A (en) * 1983-01-13 1983-08-06 Tokushu Muki Zairyo Kenkyusho New polyzirconocarbosilane
JPS58132025A (en) * 1983-01-13 1983-08-06 Tokushu Muki Zairyo Kenkyusho New polytitanocarbosilane

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63250012A (en) * 1987-04-07 1988-10-17 昭和電線電纜株式会社 Heat resisting insulated wire
WO1989006261A1 (en) * 1987-12-28 1989-07-13 Nippon Carbon Co., Ltd. Heat- and corrosion-resistant composition
CN1071623C (en) * 1994-12-16 2001-09-26 株式会社利根 Electric sedimentation grinding wheel for cast iron
JP2005322810A (en) * 2004-05-10 2005-11-17 Tdk Corp Rare earth magnet
WO2013046489A1 (en) * 2011-09-30 2013-04-04 日本特殊陶業株式会社 Lubricating coating composition and attachment component for internal combustion engine
JP2013076036A (en) * 2011-09-30 2013-04-25 Ngk Spark Plug Co Ltd Lubricating coating composition, and fixing component for internal engine
US9428708B2 (en) 2011-09-30 2016-08-30 Ngk Spark Plug Co., Ltd. Lubricating coating composition and attachment component for internal combustion engine
US9410468B2 (en) 2013-04-30 2016-08-09 Ngk Spark Plug Co., Ltd. Temperature sensor attachment member treated with dry film lubricant

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