WO2021199868A1 - Nbr組成物およびそれを用いた緩衝材 - Google Patents
Nbr組成物およびそれを用いた緩衝材 Download PDFInfo
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- WO2021199868A1 WO2021199868A1 PCT/JP2021/008196 JP2021008196W WO2021199868A1 WO 2021199868 A1 WO2021199868 A1 WO 2021199868A1 JP 2021008196 W JP2021008196 W JP 2021008196W WO 2021199868 A1 WO2021199868 A1 WO 2021199868A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
- C08K5/40—Thiurams, i.e. compounds containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/43—Compounds containing sulfur bound to nitrogen
- C08K5/44—Sulfenamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
- C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
- C08K5/47—Thiazoles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
Definitions
- the present invention relates to an NBR composition and a cushioning material using the same. More specifically, the present invention relates to an NBR composition having excellent rubber dough processability and vulcanized rubber hardness, and a cushioning material using the same.
- the rubber cushioning member is incorporated in various devices and tools as a member responsible for absorbing repeated impacts by the moving member.
- the cushioning stopper used in the steering portion of an automobile has a large impact load, it is required to have high hardness and high durability cushioning performance as rubber performance.
- Patent Document 1 100 parts by weight of rubber component containing NBR (B) Crosslink accelerator containing 1.0 to 2.5 parts by weight of di-2-benzothiazyl disulfide N-cyclohexyl-2-benzothiazyl sulfenamide 1.0 to 2.5 parts by weight of tetraalkylthiuram disulfide 1.0 to 4.5 parts by weight (C) A crosslinkable rubber composition for a cushioning material containing 0.3 to 1.0 parts by weight of a vulcanization retarder is described.
- this crosslinkable rubber composition for cushioning material if even one of the three components of the crosslink accelerator is not contained, extremely high impact resistance cannot be obtained, and a filler such as carbon black may be contained. Although it is stated that, only furnace black is actually used.
- An object of the present invention is to provide an NBR composition having excellent rubber dough processability and vulcanized rubber hardness, and a cushioning material using the same.
- the first object of the present invention is to promote vulcanization of 93 to 105 parts by weight of carbon black having a carbon black grade of N330 or N550, 1.0 to 4.0 parts by weight of a vulcanization retardant, and thiazole-based and sulfur-based vulcanization with respect to 100 parts by weight of NBR. Achieved by NBR compositions containing 2.0-5.0 parts by weight of the agent and 1.0-4.0 parts by weight of the sulfur-based vulcanizer.
- the second object of the present invention is achieved by the cushioning material which is a vulcanized molded product of NBR.
- the NBR composition according to the present invention and the cushioning material using the same are excellent in terms of rubber fabric processability and vulcanized rubber hardness, and these properties can be compatible with each other.
- the bound acrylonitrile (AN) content is 25-43% by weight, preferably 27-40% by weight, more preferably 27-35% by weight, and the median value of ML 1 + 4 (100 ° C.) is 20-. 60, preferably 30 to 50 is used.
- NBR can also contain (meth) acrylic acid, (meth) acrylic acid lower alkyl ester, etc. by copolymerizing them.
- NBR sulfur vulcanizable synthetic rubber of 30% by weight or less, for example, acrylic rubber, fluororubber, etc. can be substituted and used.
- N-330 or N-550 grade carbon black is used as carbon black.
- N-330 grade carbon black has a particle size of 28 to 36 nm, and in addition to N-330 (HAF carbon black), S-315, N-326, N-347, N-356, N-358, etc. are also available.
- N-550 grade carbon black has a particle size of 39 to 55 nm, and in addition to N-550 (FEF carbon black), N-539, N-568, etc. are also used.
- N-330 or N-550 grade carbon black is used at a ratio of 93 to 105 parts by weight, preferably 95 to 100 parts by weight, per 100 parts by weight of NBR.
- the vulcanized rubber hardness and 100% tensile stress do not meet the required properties.
- the vulcanized rubber hardness and 100% tensile stress show good values, but the workability level does not satisfy the required characteristics.
- sulfide retarder examples include thioimide compounds such as N- (cyclohexylthio) phthalimide, N- (2-ethylhexylthio) phthalimide, N- (cyclohexylthio) maleimide, and N- (4-thbutylphenylthio) succinimide.
- thioimide compounds such as N- (cyclohexylthio) phthalimide, N- (2-ethylhexylthio) phthalimide, N- (cyclohexylthio) maleimide, and N- (4-thbutylphenylthio) succinimide.
- thioimide compounds such as N- (cyclohexylthio) phthalimide, N- (2-ethylhexylthio) phthalimide, N- (cyclohexylthio) maleimide, and N- (4-thbutylphenylthio) succinimi
- vulcanization retardants are used in a proportion of 1.0 to 4.0 parts by weight, preferably 1.0 to 2.5 parts by weight, per 100 parts by weight of NBR.
- a proportion smaller than this the vulcanized rubber hardness shows a good value, but the processability level does not satisfy the required characteristics.
- vulcanization is excessively inhibited, so that remarkable impact resistance cannot be imparted or the vulcanized physical properties (rubber hardness) are lowered.
- sulfide accelerator examples include di-2-benzothiazyl disulfide, N-cyclohexyl-2-benzothiadylsulfenamide, 2-mercaptobenzothiazole, zinc salt or cyclohexylamine salt of 2-mercaptobenzothiazole, 2-.
- Thiazole-based sulfurization accelerators such as (N, N'-diethylthiocarbamoylthio) benzothiazole, 2- (4'-morpholinodithio) benzothiazole, tetramethylthium monosulfide, tetramethylthiuram disulfide, tetraethylthiuram disulfide, tetra Thiuram-based sulfurization accelerators such as butyl thiuram disulfide, tetrakis (2-ethylhexyl) thiuram disulfide, and dipentamethylene thiuram tetrasulfide, preferably di-2-benzothiazyl disulfide and tetraalkyl thiuram monosulfide are used.
- the thiazole-based vulcanization accelerator is 0.3 to 1.5 parts by weight, preferably 0.5 to 1.0 parts by weight, and the thiuram-based vulcanization accelerator is 1.5 to 4.0 parts by weight per 100 parts by weight of NBR. It is preferably used in a proportion of 2.0 to 3.0 parts by weight, and the total amount of both is used in a proportion of 2.0 to 5.0 parts by weight, preferably 2.5 to 4.0 parts by weight.
- N-cyclohexyl-2-benzothiadylsulfenamide can be used as one component of the thiazole-based vulcanization accelerator, it is not an essential component.
- sulfur-based vulcanizing agent powdered sulfur, sulfur flower, precipitated sulfur, colloidal sulfur, surface-treated sulfur, insoluble sulfur, high molecular weight vulcanizing agent, etc. are used at a ratio of 1.0 to 4.0 parts by weight per 100 parts by weight of NBR. Be done.
- necessary compounding agents such as divalent metal oxides or hydroxides, acid receiving agents such as hydrotalcite, plasticizers, and antiaging agents are added, and closed kneading such as kneader is performed.
- the composition is prepared using a machine and an open kneader such as an open roll.
- the obtained NBR composition has a minimum Mooney viscosity of less than 90 and a scorch time T5 of 10 minutes or more in accordance with JIS K6300-1 corresponding to ISO289.
- Vulcanization of the NBR composition is carried out at about 160 to 190 ° C. for about 3 to 12 minutes.
- Vulcanization molding on the cushioning material is performed by any conventionally known molding method such as an injection molding method, a compression molding method, and a transfer molding method.
- Vulcanized molded products have a rubber hardness (Duro A, instantaneous) of 85 or more conforming to JIS K6253 corresponding to ISO 18517, cushioning materials for automobiles such as stoppers for electric power steering, cushioning materials for nailers, etc. It can be effectively used as a cushioning material or the like for a device equipped with a hydraulic cylinder.
- the stopper of the electric power steering becomes a stopper when the steering wheel is fully turned, so a large force is applied to it, but the cushioning material of the present invention sufficiently acts as a cushioning material for automobiles.
- Example 1 NBR (Lanxess product PERBUNAN 2845F; 100 parts by weight bound AN content 28% by weight, ML 1 + 4 (100 ° C) center value 45) Carbon black (N330; particle size 28-36 nm, 95 ⁇ Iodine adsorption amount 82g / kg) Zinc oxide 10 ⁇ N- (cyclohexylthio) phthalimide vulcanization retarder 2.50 ⁇ (Toray Fine Chemicals Product Retarder CTP) Di (2-ethylhexyl) sebacate 5 ⁇ High molecular weight polysulfide vulcanizer (Toyo Kagaku product Vulcar) 2.50 ⁇ Tetramethylthium monosulfide vulcanization accelerator 2 ⁇ (Ouchi Shinko Chemical Industry Product Noxeller TS) Di-2-benzothiazil disulfide vulcanization accelerator 0.50 ⁇ (Ouchi Shinko Chemical Industry Product Noxeller DM) After knea
- Formability (required workability index)
- Minimum Mooney Viscosity (VM): Compliant with JIS K6300-1 corresponding to ISO 289, Using the Mooney viscometer AM-4 manufactured by Toyo Seiki Seisakusho, the test temperature was 125 ° C.
- Measurement unit using L-type rotor is M, allowing less than 90 Scorch time (T5): Compliant with JIS K6300-1 corresponding to ISO 289, VM Measurement with the same tester and under the same conditions The unit is minutes, and the required characteristic index of the spring (product function) that allows 10 minutes or more Hardness (JIS K6253 compliant with ISO 18517, Duro A, instantaneous): 100% tensile stress that allows 85 or more (JIS K 6251 compliant corresponding to ISO 37): Tensile strength of 10MPa or more (JIS K 6251 compliant with ISO 37): Allows 15MPa or more
- Example 2 In Example 1, the amount of the vulcanization retardant was changed to 1 part by weight and the amount of the vulcanization agent was changed to 1 part by weight.
- Example 3 In Example 1, the carbon black grade was changed to N550 (particle size 39 to 55 nm, iodine adsorption amount 43 g / kg).
- Example 4 In Example 3, the amount of the vulcanization retardant was changed to 1 part by weight and the amount of the vulcanization agent was changed to 4 parts by weight.
- Example 1 Comparative Example 1 In Example 1, the carbon black grade was changed to N220 (particle size 24-33 nm, iodine adsorption amount 121 mg / g).
- Example 2 Comparative Example 2 In Example 1, the carbon black grade was changed to N770 (particle size 70 to 96 nm, iodine adsorption amount 22 mg / g).
- Example 3 Comparative Example 3 In Example 1, the carbon black grade was changed to N990 (particle size 250 to 350 nm, iodine adsorption amount 19 mg / g).
- Example 2 Comparative Example 4 In Example 2, the amount of vulcanization retardant was changed to 0.40 parts by weight.
- Example 2 Comparative Example 5 In Example 2, the amount of vulcanizing agent was changed to 0.60 parts by weight.
- Comparative Example 7 In Example 2, 106 parts by weight of N550 was used as the carbon black grade.
- Example 1 shows preferable values with respect to the rubber dough processability and the vulcanized rubber hardness.
- Example 2 when the amount of the vulcanization retarder and the vulcanizing agent of Example 1 was reduced, the workability was improved as compared with Example 1, while the vulcanized rubber hardness was reduced. However, the required characteristics are satisfied.
- Example 3 when the grade of carbon black in Example 1 was changed to N550, the workability was improved and the hardness of the vulcanized rubber was reduced in comparison with Example 1. However, the required characteristics are met.
- Example 4 when the amount of the vulcanization retarder of Example 3 was reduced and the amount of the vulcanizing agent was increased, the processability (T5 value) was lower than that of Example 3, but the demand was obtained. The characteristics are satisfied.
- Comparative Example 1 when the carbon black grade of Example 1 was changed to N220, the vulcanized rubber hardness showed a good value, but the processability level (VM) did not satisfy the required characteristics.
- Comparative Examples 2 and 3 when the carbon black grade of Example 1 was changed to N770 and N990, the workability level (VM, T5 value) satisfied the required characteristics, but the vulcanized rubber strength met the required level. not filled.
- Comparative Example 4 when the amount of the vulcanization retardant of Example 2 was reduced, the vulcanized rubber hardness showed a good value, but the processability level (VM) did not satisfy the required characteristics.
- Comparative Example 5 when the amount of the vulcanizing agent in Example 2 was reduced, the vulcanized rubber hardness and 100% tensile stress did not satisfy the required characteristics as compared with Example 2.
- Comparative Example 6 when the carbon black grade of Example 2 was changed to N550 and the blending amount was changed to 90 parts by weight, the vulcanized rubber hardness and 100% tensile stress were required in comparison with Example 2. Does not meet the characteristics.
- Comparative Example 7 when the amount of carbon black blended in Comparative Example 6 was increased, the vulcanized rubber hardness and 100% tensile stress showed good values, but the workability level (VM) satisfied the required characteristics. No.
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Abstract
Description
・モータをラック軸に平行に搭載することで、ユニット搭載性が向上する
・ベルト駆動により、フリクションロスの低減と大トルク対応の両立が可
能
・低騒音のため、ラックをサブフレームによりリジット固定が可能
などのメリットを有する反面、
・衝撃入力(据え切りや縁石衝突など)でベルト駆動部の歯飛びが生じ、そ の結果、ステアリング位置制御にズレを生ずる
などのデメリットを有し、こうしたことから緩衝機能を持ったアイテムが必要とされる。
(A) NBRを含むゴム成分100重量部
(B) ジ-2-ベンゾチアジルジスルフィド 1.0~2.5重量部
N-シクロヘキシル-2-ベンゾチアジルスルフェンアミド 1.0~2.5重量部
テトラアルキルチウラムジスルフィド 1.0~4.5重量部
を含む架橋促進剤
(C) 加硫遅延剤 0.3~1.0 重量部
を含有する緩衝材用架橋性ゴム組成物が記載されている。
NBR(ランクセス社製品 PERBUNAN 2845F; 100重量部
結合AN含量28重量%、ML1+4(100℃)中心値45)
カーボンブラック(N330;粒径28~36nm、 95 〃
ヨウ素吸着量82g/kg)
酸化亜鉛 10 〃
N-(シクロヘキシルチオ)フタルイミド加硫遅延剤 2.50 〃
(東レ・ファインケミカル製品リターダーCTP)
セバシン酸ジ(2-エチルヘキシル) 5 〃
高分子多硫化加硫剤(東洋化学製品Vulcar) 2.50 〃
テトラメチルチウラムモノスルフィド加硫促進剤 2 〃
(大内新興化学工業製品ノクセラーTS)
ジ-2-ベンゾチアジルジスルフィド加硫促進剤 0.50 〃
(大内新興化学工業製品ノクセラーDM)
以上の各成分をニーダおよびオープンロールで混練した後、180℃、8分間の加硫を行った。
成形性(必要加工性指標)
最低ムーニー粘度(VM):ISO 289に対応するJIS K6300-1に準拠し、
東洋精機製作所製ムーニー粘度計AM-4を用い、試験温度125℃、
L型ローターを用いて測定
単位はMであり、90未満を可とする
スコーチタイム(T5):ISO 289に対応するJIS K6300-1に準拠し、VM
測定と同試験機・同条件にて測定
単位は分であり、10分以上を可とする
バネ(製品機能)の必要特性指標
硬度(ISO 18517に対応するJIS K6253準拠、Duro A・瞬時):
85以上を可とする
100%引張応力(ISO 37に対応するJIS K6251準拠):
10MPa以上を可とする
引張強さ(ISO 37に対応するJIS K 6251準拠):
15MPa以上を可とする
実施例1において、加硫遅延剤量が1重量部、加硫剤量が1重量部にそれぞれ変更された。
実施例1において、カーボンブラックグレードがN550(粒径39~55nm、ヨウ素吸着量43g/kg)に変更された。
実施例3において、加硫遅延剤量が1重量部、加硫剤量が4重量部にそれぞれ変更された。
実施例1において、カーボンブラックグレードがN220(粒子径24~33nm、ヨウ素吸着量121mg/g)に変更された。
実施例1において、カーボンブラックグレードがN770(粒子径70~96nm、ヨウ素吸着量22mg/g)に変更された。
実施例1において、カーボンブラックグレードがN990(粒子径250~350nm、ヨウ素吸着量19mg/g)に変更された。
実施例2において、加硫遅延剤量が0.40重量部に変更された。
実施例2において、加硫剤量が0.60重量部に変更された。
実施例2において、カーボンブラックグレードとしてN550が90重量部用いられた。
実施例2において、カーボンブラックグレードとしてN550が106重量部用いられた。
(1) 実施例1は、ゴム生地加工性および加硫ゴム硬度に関しては、好ましい値を示している。
(2) 実施例2は、実施例1の加硫遅延剤および加硫剤を減量したところ、実施例1との対比で加工性の良化がみられる一方、加硫ゴム硬度の低下がみられるが、要求特性は満たされている。
(3) 実施例3は、実施例1のカーボンブラックのグレードをN550に変更したところ、実施例1との対比で、加工性の良化がみられる一方、加硫ゴム硬度の低下がみられるものの、要求特性は満たされている。
(4) 実施例4は、実施例3の加硫遅延剤を減量し、加硫剤を増量したところ、実施例3との対比で、加工性(T5値)の低下がみられるものの、要求特性は満たされている。
(5) 比較例1は、実施例1のカーボンブラックグレードをN220に変更したところ、加硫ゴム硬度は良好な値を示すが、加工性レベル(VM)は要求特性を満たしていない。
(6) 比較例2~3は、実施例1のカーボンブラックグレードをN770、N990に変更したところ、加工性レベル(VM、T5値)は要求特性を満たすが、加硫ゴム強度が要求レベルを満たしていない。
(7) 比較例4は、実施例2の加硫遅延剤量を減量したところ、加硫ゴム硬度は良好な値を示すが、加工性レベル(VM)が要求特性を満たしていない。
(8) 比較例5は、実施例2の加硫剤量を減量したところ、実施例2対比で、加硫ゴム硬度および100%引張応力が要求特性を満たしていない。
(9) 比較例6は、実施例2のカーボンブラックグレードをN550に変更し、その配合量を90重量部に変更したところ、実施例2対比で、加硫ゴム硬度および100%引張応力は要求特性を満たしていない。
(10) 比較例7は、比較例6のカーボンブラック配合量を増量したところ、加硫ゴム硬度および100%引張応力は良好な値を示すが、加工性レベル(VM)は要求特性を満たしていない。
Claims (12)
- NBR 100重量部に対し、カーボンブラックグレードがN330またはN550のカーボンブラック 93~105重量部、加硫遅延剤1.0~4.0重量部、チアゾール系およびチウラム系加硫促進剤2.0~5.0重量部および硫黄系加硫剤1.0~4.0重量部を含有してなるNBR組成物。
- N330のカーボンブラックが粒径28~36nmのカーボンブラックである請求項1記載のNBR組成物。
- N550のカーボンブラックが粒径39~55nmのカーボンブラックである請求項1記載のNBR組成物。
- 加硫遅延剤がチオイミド系化合物である請求項1記載のNBR組成物。
- 加硫促進剤がチアゾール系加硫促進剤0.3~1.5重量部およびチウラム系加硫促進剤1.5~4.0重量部からなる請求項1記載のNBR組成物。
- チアゾール系加硫促進剤がジ-2-ベンゾチアジルジスルフィドである請求項1または5記載のNBR組成物。
- チウラム系加硫促進剤がテトラアルキルチウラムモノスルフィドである請求項1または5記載のNBR組成物。
- ISO 289に対応するJIS K6300-1に準拠した最低ムーニー粘度が90未満であり、スコーチタイムが10分以上である請求項1記載のNBR組成物。
- 請求項1記載のNBR組成物の加硫成形品。
- 緩衝材である請求項9記載の加硫成形品。
- 緩衝ストッパである請求項10記載の加硫成形品。
- ISO 18517に対応するJIS K6253に準拠したゴム硬度(Duro A、瞬時)が85以上である請求項9、10または11記載の加硫成形品。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21782313.7A EP4130130B1 (en) | 2020-03-31 | 2021-03-03 | Nbr composition and buffer material using same |
| JP2022511688A JP7236591B2 (ja) | 2020-03-31 | 2021-03-03 | Nbr組成物およびそれを用いた緩衝材 |
| CN202180024487.5A CN115362205B (zh) | 2020-03-31 | 2021-03-03 | Nbr组合物及使用其的缓冲材料 |
| US17/915,186 US12577379B2 (en) | 2020-03-31 | 2021-03-03 | NBR composition and buffer material using the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020063585 | 2020-03-31 | ||
| JP2020-063585 | 2020-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021199868A1 true WO2021199868A1 (ja) | 2021-10-07 |
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ID=77930324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/008196 Ceased WO2021199868A1 (ja) | 2020-03-31 | 2021-03-03 | Nbr組成物およびそれを用いた緩衝材 |
Country Status (5)
| Country | Link |
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| US (1) | US12577379B2 (ja) |
| EP (1) | EP4130130B1 (ja) |
| JP (1) | JP7236591B2 (ja) |
| CN (1) | CN115362205B (ja) |
| WO (1) | WO2021199868A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024172883A (ja) * | 2023-06-01 | 2024-12-12 | デンカ株式会社 | 架橋性ゴム組成物及びゴム緩衝材 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63178148A (ja) * | 1987-01-19 | 1988-07-22 | Nok Corp | Nbr組成物 |
| JP2007291295A (ja) * | 2006-04-27 | 2007-11-08 | Toyo Tire & Rubber Co Ltd | 耐水性ニトリルゴム組成物 |
| JP2014159506A (ja) * | 2013-02-19 | 2014-09-04 | Nippon Valqua Ind Ltd | 緩衝材用架橋性ゴム組成物及びこれを用いた緩衝材 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2246025A1 (en) * | 1997-09-18 | 1999-03-18 | Giorgio Agostini | Heterogeneous silica carbon black-filled rubber compound |
| JP2000212330A (ja) | 1999-01-26 | 2000-08-02 | Nippon Zeon Co Ltd | 加硫性ゴム組成物 |
| JP2000320195A (ja) * | 1999-05-14 | 2000-11-21 | Alpha Corp | 緩衝ストッパ部材付車両用ドアアウトサイドハンドル装置、および緩衝ストッパ部材 |
| CA2465463A1 (en) * | 2003-06-09 | 2004-12-09 | The Goodyear Tire & Rubber Company | Two-piece tire with improved tire tread belt and carcass |
| EP1985658A4 (en) * | 2006-02-17 | 2010-08-25 | Nok Corp | HYDROGENATED NITRILE RUBBER COMPOSITIONS |
| US7629409B2 (en) * | 2006-09-21 | 2009-12-08 | The Goodyear Tire & Rubber Company | Pneumatic tire |
| JP5546426B2 (ja) * | 2010-11-18 | 2014-07-09 | 東洋ゴム工業株式会社 | 鉄道車両用緩衝ゴム用ゴム組成物 |
| JP6007818B2 (ja) * | 2013-02-13 | 2016-10-12 | 株式会社ブリヂストン | ホース用ゴム組成物及びホース |
| KR20250167378A (ko) | 2024-05-22 | 2025-12-01 | (주)아모레퍼시픽 | 저점도 다중유형 유화 조성물 |
-
2021
- 2021-03-03 CN CN202180024487.5A patent/CN115362205B/zh active Active
- 2021-03-03 EP EP21782313.7A patent/EP4130130B1/en active Active
- 2021-03-03 WO PCT/JP2021/008196 patent/WO2021199868A1/ja not_active Ceased
- 2021-03-03 JP JP2022511688A patent/JP7236591B2/ja active Active
- 2021-03-03 US US17/915,186 patent/US12577379B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63178148A (ja) * | 1987-01-19 | 1988-07-22 | Nok Corp | Nbr組成物 |
| JP2007291295A (ja) * | 2006-04-27 | 2007-11-08 | Toyo Tire & Rubber Co Ltd | 耐水性ニトリルゴム組成物 |
| JP2014159506A (ja) * | 2013-02-19 | 2014-09-04 | Nippon Valqua Ind Ltd | 緩衝材用架橋性ゴム組成物及びこれを用いた緩衝材 |
| JP6045935B2 (ja) | 2013-02-19 | 2016-12-14 | 日本バルカー工業株式会社 | 緩衝材用架橋性ゴム組成物及びこれを用いた緩衝材 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4130130A4 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024172883A (ja) * | 2023-06-01 | 2024-12-12 | デンカ株式会社 | 架橋性ゴム組成物及びゴム緩衝材 |
| JP7603104B2 (ja) | 2023-06-01 | 2024-12-19 | デンカ株式会社 | 架橋性ゴム組成物及びゴム緩衝材 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115362205A (zh) | 2022-11-18 |
| CN115362205B (zh) | 2023-07-11 |
| EP4130130A4 (en) | 2024-05-01 |
| JPWO2021199868A1 (ja) | 2021-10-07 |
| US20230121213A1 (en) | 2023-04-20 |
| EP4130130B1 (en) | 2025-06-04 |
| JP7236591B2 (ja) | 2023-03-09 |
| US12577379B2 (en) | 2026-03-17 |
| EP4130130A1 (en) | 2023-02-08 |
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