WO2001027199A1 - Caoutchouc, composition a base de caoutchouc reticulable et objet reticule - Google Patents
Caoutchouc, composition a base de caoutchouc reticulable et objet reticule Download PDFInfo
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- WO2001027199A1 WO2001027199A1 PCT/JP2000/007161 JP0007161W WO0127199A1 WO 2001027199 A1 WO2001027199 A1 WO 2001027199A1 JP 0007161 W JP0007161 W JP 0007161W WO 0127199 A1 WO0127199 A1 WO 0127199A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/02—Hydrogenation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/14—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
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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
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
Definitions
- the present invention relates to a nitrile group-containing highly saturated copolymer rubber which is a material of a rubber crosslinked product having excellent cold resistance, a crosslinkable rubber composition containing the rubber, and a crosslinked product obtained by crosslinking the rubber composition. . Background technology
- the nitrile group-containing highly saturated copolymer rubber has less unsaturated bonds than the acrylo-tolyl-butadiene copolymer rubber having many carbon-carbon unsaturated bonds in the main chain structure, and has heat resistance, oil resistance, and heat resistance. Ozone properties are excellent.
- the cold resistance may be lower than that of the nitrile group-containing copolymer rubber. Atsuta.
- the cold resistance can be improved by reducing the nitrile group content.
- the cold resistance ⁇ E is not always improved.
- nitrile group-containing highly saturated copolymer containing four types of monomer units ie, a monomer unit (b), a conjugated monomer unit (c), and a saturated conjugated monomer unit (d).
- a method using a polymerized rubber JP-A-63-95424, JP-A-3-109449, etc.
- the crosslinked product of the nitrile group-containing highly saturated copolymer rubber does not necessarily show a sufficient effect on the demand for cold resistance. In some cases, contact with oil at high temperatures changed the properties. Disclosure of the invention
- An object of the present invention is to provide a nitrile group-containing highly saturated copolymer rubber which is a material for a rubber crosslinked product having excellent cold resistance, oil resistance and dynamic characteristics, a crosslinkable rubber composition containing the rubber, and the rubber composition.
- An object of the present invention is to provide a crosslinked product obtained by crosslinking a product.
- the present inventors have conducted intensive studies to achieve the above object, and as a result, have a specific copolymerization composition, and adjust the monomer concentration in the polymerization reaction solution according to the reactivity of the monomer during polymerization.
- a specific copolymerization composition and adjust the monomer concentration in the polymerization reaction solution according to the reactivity of the monomer during polymerization.
- Teg extrapolated glass transition onset temperature
- Teg extrapolated glass transition end temperature
- the total content of (c) and monomer unit (d) is 20 to 70% by weight, and the content of monomer unit (d) relative to the total content of monomer unit ( c ) and monomer unit (d) The proportion is 70 weight.
- the nitrile group-containing highly saturated copolymer rubber 100 parts by weight
- the sulfur crosslinking agent 0.1 to 5 parts by weight
- the organic peroxide crosslinking agent 1 to 16 parts by weight
- a crosslinkable rubber composition comprising:
- the nitrile group-containing highly saturated copolymer rubber of the present invention comprises ⁇ , ⁇ -ethylenically unsaturated ditolyl monomer units (a) 10 to 40% by weight, a, j3-ethylenically unsaturated carboxylic acid. Ester monomer unit (b) 10 to 60% by weight, conjugated diene monomer unit (c) 0.01 to 21% by weight. /.
- the saturated conjugated diene monomer unit (d) contains 14 to 69.99% by weight, and the total content ratio of the monomer unit (c) and the monomer unit (d) is 20 to 70 % By weight, the content of monomer units (d) in the total content of monomer units (c) and monomer units (d) is 70% by weight or more, and extrapolated glass transition starts in differential scanning calorimetry.
- the temperature difference between the temperature (T ig) and the extrapolated glass transition end temperature (T eg) is 10. It is a rubber of C or less.
- 3-ethylenically unsaturated nitrile monomer (1) includes acrylonitrile; ⁇ -chloroacrylonitrile ⁇ -halogenoacrylonitrile such as ⁇ -bromoacrylonitrile; ⁇ -alkylacrylonitrile such as methacrylonitrile and ethacrylonitrile; and the like, with acrylonitrile being preferred.
- the ⁇ ,] 3-ethylenically unsaturated nitrile monomer (1) may be used in combination of two or more.
- the content of ⁇ , ⁇ -ethylenically unsaturated nitrile monomer units (a) in the nitrile group-containing highly saturated copolymer rubber is from 10 to 40% by weight. /. Preferably from 12 to 35% by weight, more preferably from 15 to 30% by weight. / 0 . (H) If the content of the ⁇ -ethylenically unsaturated nitrile monomer unit (a) is too small, the oil resistance will be poor, and if it is too large, the cold resistance will be poor.
- a, j3- ⁇ , -ethylenically unsaturated carboxylic acid ester monomer units (b) which are ethylenically unsaturated carboxylic acid ester monomer units (b) include methyl acrylate, ethyl acrylate, ⁇ - acrylate or methacrylate having an alkyl group having 1 to 18 carbon atoms, such as dodecyl acrylate, methyl methacrylate, methyl methacrylate, butyl acrylate; methoxymethyl acrylate, methoxide Acrylate or methacrylate having an alkoxyalkyl group having 2 to 18 carbon atoms such as tyl methacrylate; carbon number such as cyanoethyl acrylate, ⁇ -cyanoethyl acrylate, or cyanobutyl methacrylate Acrylate or methacrylate having 2 to 18 cyanoalkyl groups; 2-hid Acrylate or methacrylate having a hydroxyalky
- ⁇ ,) 3-ethylenically unsaturated carboxylic acid ester monomers (2) may be used in combination of two or more.
- the content of the ⁇ , ⁇ -ethylenically unsaturated carboxylic acid ester monomer unit (b) in the nitrile group-containing highly saturated copolymer rubber is 10 to 60% by weight. /. , Preferably 15 to 55 weight. / 0 , more preferably 20-50 weight. / 0 . If the content of the unsaturated carboxylic acid ester monomer unit (b) in the nitrile group-containing highly saturated copolymer rubber is too small, the cold resistance becomes poor, while if it is too large, the oil resistance and dynamic characteristics become poor.
- Examples of the conjugated diene monomer (3) which becomes the conjugated diene monomer unit ( c ) include 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, and 1,3-pentadiene. And 1,3-butadiene is preferred.
- a plurality of conjugated diene monomers (3) may be used in combination.
- the content ratio of the conjugated diene monomer unit (c) in the nitrile group-containing highly saturated copolymer rubber is from 0.01 to 21% by weight. /. , Preferably from 0.05 to: 16.25% by weight, more preferably from 0.1 to 12% by weight. If the content of the conjugated diene monomer unit (c) in the rubber is too large, the heat resistance becomes poor, and if it is too small, crosslinking becomes difficult, Even if a crosslinked product is obtained, the strength is weakened.
- the saturated conjugated diene monomer unit (d) has a structure in which the carbon-carbon double bond of the conjugated diene monomer unit (c) is saturated by hydrogenation.
- the content of the saturated conjugated diene monomer unit (d) in the nitrile group-containing highly saturated copolymer rubber is 14 to 69.99 weight. /. , Preferably 18.75 to 64.95% by weight, more preferably 28 to 59.9% by weight. / 0 . If the content of the saturated conjugated diene monomer unit (d) is too small, the heat resistance will be poor, and if it is too large, the dynamic properties and compression set will be poor.
- the total content of the monomer unit (c) and the monomer unit (d) in the nitrile group-containing highly saturated copolymer rubber of the present invention is 20 to 70% by weight. / 0 , preferably 25 to 65% by weight, more preferably 35 to 60% by weight. If the total content is too low, the dynamic properties are poor, and if it is too high, the cold resistance and oil resistance deteriorate.
- the ratio of the monomer unit (d) to the total content of the monomer unit (c) and the monomer unit (d) in the nitrile group-containing highly saturated copolymer rubber of the present invention is 70% by weight or more, Preferably 75 weight. / 0 or more, more preferably 80 weight. / 0 or more. If this ratio is too small, heat resistance, oil resistance and ozone resistance will be poor.
- the number average molecular weight of the nitrile group-containing highly saturated copolymer rubber of the present invention is preferably 10,000 to 2,000,000, more preferably 30,000 to 150,000, and particularly preferably 50,000 to 1,000,000. If the number average molecular weight is too small, the viscosity of the rubber may be too low, and mechanical strength such as tensile strength may be inferior. If too large, the viscosity of the rubber may be too high and processability may be poor.
- the nitrile group-containing highly saturated copolymer rubber of the present invention has an extrapolated glass transition onset temperature (T ig) and an extrapolated glass in differential scanning calorimetry defined in JIS K7121 “Method of measuring transition temperature of plastic”.
- the temperature difference ( ⁇ ) of the transition end temperature (Te g) is 10 ° C or less, preferably 9 ° C or less, more preferably 8.5 ° C or less. If the temperature difference ( ⁇ ) is too large, the dynamic properties of the rubber crosslinked product of the present invention will be inferior.
- composition distribution of monomer unit (a), monomer unit (b) and [monomer unit (c) and monomer unit (d)] in the nitrile group-containing highly saturated copolymer rubber of the present invention is preferably at most 20% by weight, more preferably at most 15% by weight, particularly preferably at most 1% by weight. 0 weight. / o or less. If the composition distribution width is too large, the temperature difference ( ⁇ ) between the extrapolated glass transition onset temperature (T ig) and the extrapolated glass transition end temperature (T eg) may be too large.
- the composition distribution width of each monomer is the ratio of [the difference between the maximum value and the minimum value of the monomer content ratio in a minute section of the polymer] to [the monomer content ratio in the whole polymer]. is there. That is, the polymer molecule has a width of 1 to 5 weight from the end based on the number average molecular weight. / 0 , preferably 2-4 weight. / 0 seek each monomer-containing fraction for each section obtained by equally dividing each, the difference between the maximum value and the minimum value is divided by the monomer content in the total polymer. This value can be determined, for example, by measuring the amount of each monomer consumed each time the polymerization conversion rate increases by a certain amount during polymerization, and obtaining the value from the result.
- the content ratio of the monomer unit (a), monomer unit (b), monomer unit (c) and monomer unit (d) in the nitrile group-containing highly saturated copolymer rubber is as follows: Measurement of nitrogen content by semi-micro Kjeldahl method, measurement of unsaturated bond amount by infrared absorption spectrum analysis and iodine value measurement, infrared absorption spectrum analysis, — NMR, 13 C-NMR, heat The content ratio of each monomer unit can be obtained by combining a plurality of measurement methods such as identification of a partial structure by decomposition gas chromatography and measurement of a quantitative ratio. In general,] H- NMR identification of partial structures by, but high measurement of the amount ratio of the most reliable, 1 H- in the NMR spectrum might Rere such can be analyzed by causes such as multiple peaks overlap However, it is desirable to analyze in combination with other methods.
- the production of the nitrile group-containing highly saturated copolymer rubber of the present invention is preferably carried out by using a ⁇ -ethylenically unsaturated nitrile monomer (1), an ⁇ ,] 3-ethylenically unsaturated carboxylic acid ester
- the copolymer monomer (2) and the conjugated gen monomer (3) are copolymerized, and the conjugated gen unit in the obtained copolymer rubber is selectively hydrogenated.
- the composition distribution width of the monomer unit ( a ), the monomer unit (b) and the monomer unit (c) is reduced by controlling the concentration of each monomer by intermediate addition. .
- the target molecular weight of the polymer is determined, and the polymerization is performed every 1 to 5% by weight, preferably every 2 to 4% by weight, from the start of polymerization to the target molecular weight.
- the polymerization is performed by controlling the content ratio of each monomer in the minute section to be formed.
- the control method is to change the concentration of each monomer in the polymerization reaction solution by adding each monomer halfway. It is not necessary to measure the content of each monomer in a minute section every time polymerization is performed, and it is only necessary to determine how to control the concentration of each monomer by a preliminary experiment, and to carry out polymerization according to that. Most of the preliminary experiments can be replaced by computer simulations, and the results can be confirmed in experiments.
- the content ratio of the monomer unit (d) to the total content ratio of the monomer unit (c) and the monomer unit (d) was 70% by weight. / 0 or more, preferably 75% by weight or more, more preferably 80% by weight or more.
- the polymer before hydrogenation usually does not contain the monomer unit (d), and the composition distribution width of the monomer unit (c) in the polymer before hydrogenation is different from the weight after the hydrogenation.
- the composition distribution width of [monomer unit (c) and monomer unit (d)] in the union becomes substantially the same as the composition distribution width.
- polymerization reaction conditions such as polymerization solvent, concentration of polymerization reaction solution, type and amount of polymerization initiator, polymerization temperature, polymerization conversion when polymerization is stopped, type and amount of hydrogenation catalyst, and hydrogenation temperature
- the hydrogenation reaction conditions and the like may be determined according to a known method for producing a nitrile group-containing highly saturated copolymer rubber by polymerizing a nitrile group-containing copolymer rubber and adding hydrogen.
- the crosslinkable rubber composition of the present invention comprises the above nitrile group-containing highly saturated copolymer rubber and a crosslinking agent as essential components, and if necessary, other compounding agents.
- the crosslinking agent used in the present invention is not particularly limited as long as it can bridge the nitrile group-containing highly saturated copolymer rubber of the present invention, but a sulfur crosslinking agent or an organic peroxide crosslinking agent is preferable.
- sulfur cross-linking agent examples include sulfur such as powdered sulfur and precipitated sulfur; and organic sulfur compounds such as 4,4'-dithiomold and polymer polysulfide.
- the amount of the sulfur crosslinking agent used per 100 parts by weight of the nitrile group-containing highly saturated copolymer rubber is 0.1 to 5 parts by weight, preferably 0.2 to 4.5 parts by weight, more preferably 0.3 to 0.5 parts by weight. 4 parts by weight. If the amount of the sulfur crosslinking agent used is too small, the crosslinking density decreases and the compression set increases.If the amount is too large, the bending fatigue resistance becomes insufficient or the dynamic heat generation increases. is there.
- a sulfur cross-linking agent When using a sulfur cross-linking agent, a combination of sublimation, guanidine-based cross-linking accelerator, J, thiazole-based cross-linking promoter, thiuram-based cross-linking promoter, dithiol-rubbamate-based cross-linking promoter is used as a cross-linking aid.
- a cross-linking aid Preferably c
- organic peroxide cross-linking agent those used as a cross-linking agent in the rubber industry are preferable.
- examples thereof include dialkyl peroxides, disilver oxides, and carboxylic esters, and preferably dialkyl peroxide. It is a kind of oxide.
- dialkyl peroxides include dicumyl peroxide, di-t-butyl peroxide, 2,5-dimethyl-2,5-di (t-butylvaloxy) -13-hexine, and 2,5-dimethyl-12. , 5-di (t-butylbaroxy) hexane, 1,3-bis (t-butyl / poxyisopropyl) benzene.
- diasil peroxides examples include benzoyl peroxide, isobutyryl peroxide and the like.
- peroxyesters include 2,5-dimethyl-1,2,5-bis (benzoylpropoxy) hexane, t-butylpropyloxyisopropyl, and boronate.
- the amount of the organic peroxide crosslinking agent used per 100 parts by weight of the tolyl group-containing highly saturated copolymer rubber is 1 to 16 parts by weight, preferably 1 to 14 parts by weight, more preferably 1 to 12 parts by weight. Parts by weight. If the amount of the organic peroxide cross-linking agent is too small, the cross-linking density decreases and the compression set increases. If the amount of the organic peroxide crosslinking agent is too large, the rubber elasticity of the crosslinked product may be insufficient.
- an organic peroxide cross-linking agent When an organic peroxide cross-linking agent is used in combination, it is preferable to use triaryl cyanurate, trimethylolpropane trimethacrylate, N, N'-m-phenylenebismaleimide as a cross-linking aid.
- the crosslinking aid may be used alone or in combination of two or more, and may be used by dispersing it in clay, calcium carbonate, silica or the like to improve the processability of the rubber or the composition.
- the amount of the crosslinking aid used is not particularly limited, and may be determined according to the use of the crosslinked product, the required performance, the type of the crosslinking agent, the type of the crosslinking aid, and the like.
- the crosslinkable rubber composition of the present invention contains, in addition to the nitrile group-containing highly saturated copolymer rubber and the crosslinkable copolymer lj, if necessary, the above-mentioned crosslinking aid and crosslinking accelerator, and other compounds commonly used in the rubber field.
- Agents for example, reinforcing fillers such as carbon black and silica, Non-reinforcing fillers such as calcium carbonate and clay, processing aids, plasticizers, antioxidants, antiozonants, coloring agents and the like can be added.
- the compounding amount of these compounding agents is not particularly limited as long as the objects and effects of the present invention are not impaired, and the compounding agents can be compounded in amounts according to the compounding purpose.
- a rubber other than the nitrile group-containing highly saturated copolymer rubber of the present invention may be blended.
- Rubbers other than the nitrile group-containing highly saturated copolymer rubber of the present invention are not particularly limited.
- a copolymer having a high degree of unsaturation such as a general acrylonitrile-butadiene copolymer rubber
- a nitrile group-containing highly saturated copolymer rubber is used.
- the compounding amount per part by weight is 30 parts by weight or less, preferably 20 parts by weight or less, more preferably 10 parts by weight or less.
- the crosslinked product of the present invention is excellent in heat aging resistance, bending fatigue resistance, elongation and the like, and has a small compression set. Is not exhibited.
- a rubber other than the nitrile group-containing highly saturated copolymer rubber of the present invention is blended, a necessary amount of a crosslinking agent capable of crosslinking those rubbers may be added.
- the method for preparing the rubber composition of the present invention is not particularly limited, and may be prepared by a general method for preparing a rubber composition as in the case of other rubber compositions. You need to knead it.
- a crosslinkable rubber composition containing a crosslinkable system after the compounding of the crosslinkable system, it is also common to adjust the temperature so that the temperature does not exceed the crosslink initiation temperature so as not to crosslink during kneading. This is the same as the method for preparing the product.
- the crosslinking system is blended at a crosslinking initiation temperature or lower corresponding to the crosslinking system, and mixed.
- the crosslinked product of the present invention is obtained by crosslinking the above-described rubber composition of the present invention.
- the method for crosslinking the rubber composition is not particularly limited. If necessary, a crosslinking system is blended to form a crosslinkable rubber composition, and the composition is heated and crosslinked.
- the temperature at the time of crosslinking is preferably from 100 to 200 ° C, more preferably from 130 to 200 ° C, and particularly preferably from 140 to 200 ° C. If the temperature is too low, the crosslinking time may be long, or the crosslinking density may be low. If the temperature is too high, molding may be poor.
- the cross-linking time varies depending on the cross-linking method, cross-linking temperature, shape and the like.
- the heating method for crosslinking may be appropriately selected from methods used for rubber crosslinking such as press heating, steam heating, oven heating, and hot air heating.
- test lubricating oil No. 3 oil at 135 ° C for 168 hours, (1) Measure in the same manner as in normal physical properties, measure the volume after immersion, and Changes from physical properties or volume before immersion. Expressed as / 0 .
- the temperature (T10) at which the torsion angle was 10 times the torsion angle when the torsion angle was low (23 ° C) was evaluated according to the JIS K6261. Furthermore, according to JIS K6261, it was evaluated by a TR test to show TR10.
- a cylindrical specimen with a diameter of 17.8 ⁇ 0.1 mm and a height of 25 ⁇ 0.15 mm was subjected to crosslinking at 160 ° C for 20 minutes and secondary crosslinking at 150 ° C for 2 hours. Then, dynamic characteristics and the like were evaluated by one test of a fretasometer specified by ASTM D623-78. The test was performed using a good-litch refractometer with a test temperature of 10 O :, an initial load of 25 lbs (11.34 kg), and a dynamic displacement of 4.45 mm with a dynamic displacement of 25 minutes.
- ISC initial static strain
- IDC initial dynamic strain
- FDC final dynamic strain
- HBU calorific value: the difference between the measured specimen temperature and the ambient temperature of 100 ° C) Exothermic temperature
- PS permanent strain
- Heat flux differential scanning calorimetry was performed according to JIS K7121, and the extrapolated glass transition onset temperature (Tig) and the extrapolated glass transition end temperature (Te g) were measured. However, the heating rate was changed from 20 ° C / min to 10 / min to increase the measurement accuracy.
- a reactor was charged with 2 parts of potassium oleate as an emulsifier, 0.1 part of potassium phosphate and 150 parts of water as a stabilizer, and further 20 parts of acrylonitrile, 15 parts of butyl acrylate, 35 parts of 1,3-butadiene and 35 parts of 0.45 parts of t-dodecyl mercaptan is added as a molecular weight regulator, 0.015 parts of ferrous sulfate is used as an activator, and 0.05 parts of paramenthane hydroperoxide is used as a polymerization initiator. Then, emulsion polymerization was started at 10 ° C.
- This copolymer latex was kept at 50 ° C. in 30000 parts of coagulated water in which 3 parts of calcium chloride were dissolved as a coagulant, and the above copolymer latex was dropped thereinto to coagulate the copolymer rubber. Let crumbs, wash with water, 50. C, dried under reduced pressure.
- nitrile group-containing copolymer rubber is dissolved in methyl isobutyl ketone, and a hydrogenation reaction is carried out in a pressure vessel using a palladium silica catalyst to prepare a nitrile group-containing highly saturated copolymer rubber. did.
- Tables 1 and 3 show the content ratio of each monomer unit of the nitrile group-containing copolymer rubber in the total polymer, the maximum and minimum values of the content ratio of the micropart, the composition distribution width, and the physical properties of the crosslinked product. Show.
- Nitrile group monomer unit content of the containing highly saturated copolymer rubber 1 H _ NM R, ® ⁇ iodine value measurement, Motodzure the nitrogen content measured by semi-micro Kjeldahl method, Te is a value determined It was confirmed that there was no inconsistency in the difference between the amount of the monomer used and the amount of the remaining monomer in the polymerization.
- the physical properties of the crosslinked product of the nitrile group-containing highly saturated copolymer rubber were as follows: 100 parts of the nitrile group-containing highly saturated copolymer rubber, 5 parts of zinc white 1, 1 part of stearic acid, and 0.5 part of sulfur. 55 parts of FEF carbon black (Asahi Carbon Co., Ltd., Asahi # 60), 2 parts of tetramethyldimethyldisulphide, and 0.5 parts of 2-mercaptobenzothiazol are mixed, kneaded, and crosslinked. A rubber composition was obtained, crosslinked, and used as a test piece to measure physical properties.
- Example Comparative example 1 The same treatment as in Example 1 was carried out except that the charged amount of the monomer, the amount of the monomer added, and the like were changed to the values shown in Table 1 or Table 2, and the physical properties were measured. The results are shown in Table 1, Table 2, Table 3, and Table 4. In Comparative Examples 1 to 9, the monomer was not added halfway, c , and the portion indicated by “*” in the table was not measured.
- Example Comparative example 1 the monomer was not added halfway, c , and the portion indicated by “*” in the table was not measured.
- the composition distribution width was large and the extrapolated glass transition onset temperature (T g) and the extrapolated glass transition end temperature (T eg) exceed 10 ° C.
- Crosslinked products of nitrile group-containing highly saturated copolymer rubbers are particularly dynamic when exposed to oil at high temperatures. Changes in properties are large, and applications are limited.
- a crosslinked product of a nitrile group-containing highly saturated copolymer rubber having a monomer unit content outside the range specified in the present invention is inferior in balance between cold resistance and oil resistance. .
- the crosslinked products of the nitrile group-containing highly saturated copolymer rubber of the present invention of Examples 1 to 5 are excellent in cold resistance, oil resistance, dynamic characteristics and the like.
- the crosslinked product of the nitrile group-containing highly saturated copolymer rubber of the present invention is excellent in heat resistance, cold resistance, oil resistance, dynamic characteristics, and the like, and has vibration-proof rubber, hoses, window frames, belts, diaphragms, shoe soles, It can be used for rubber products such as automobile parts.
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Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00966508A EP1247835B1 (en) | 1999-10-15 | 2000-10-16 | Rubber, crosslinkable rubber composition, and crosslinked object |
DE60030476T DE60030476T2 (de) | 1999-10-15 | 2000-10-16 | Gummi, vernetzbare gummizusammensetzung und vernetzbares objekt |
US10/089,103 US6548604B1 (en) | 1999-10-15 | 2000-10-16 | Rubber, crosslinkable rubber composition, and crosslinked object |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP11/293268 | 1999-10-15 | ||
JP29326899A JP4081938B2 (ja) | 1999-10-15 | 1999-10-15 | ゴム、架橋性ゴム組成物および架橋物、並びにゴムの製造方法 |
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WO2001027199A1 true WO2001027199A1 (fr) | 2001-04-19 |
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PCT/JP2000/007161 WO2001027199A1 (fr) | 1999-10-15 | 2000-10-16 | Caoutchouc, composition a base de caoutchouc reticulable et objet reticule |
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US (1) | US6548604B1 (ja) |
EP (1) | EP1247835B1 (ja) |
JP (1) | JP4081938B2 (ja) |
DE (1) | DE60030476T2 (ja) |
WO (1) | WO2001027199A1 (ja) |
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US8044147B2 (en) | 2005-02-23 | 2011-10-25 | Zeon Corporation | Nitrile group-containing copolymer rubber and a vulcanizable nitrile group-containing copolymer rubber composition |
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EP1767850A1 (en) | 2005-09-23 | 2007-03-28 | Goppion S.p.A. | Improved lighting device for a display case and display case comprising such device |
JP4985922B2 (ja) * | 2006-07-25 | 2012-07-25 | 日本ゼオン株式会社 | 高飽和ニトリルゴム、その製造方法およびゴム架橋物 |
WO2009157533A1 (ja) | 2008-06-27 | 2009-12-30 | 日本ゼオン株式会社 | ニトリル基含有高飽和共重合体ゴム |
WO2010038720A1 (ja) * | 2008-09-30 | 2010-04-08 | 日本ゼオン株式会社 | ニトリル基含有高飽和共重合ゴム、これを含有する架橋性ゴム組成物および架橋物 |
US20100093943A1 (en) * | 2008-10-14 | 2010-04-15 | Hallstar Innovations Corp. | Reactive esters as plasticizers for elastomers |
EP2386600B1 (de) * | 2010-04-15 | 2013-06-19 | LANXESS Deutschland GmbH | Isocyanatgruppen-enthaltende Vernetzer für Nitrilkautschuke |
US8080486B1 (en) | 2010-07-28 | 2011-12-20 | Honeywell International Inc. | Ballistic shield composites with enhanced fragment resistance |
KR101606988B1 (ko) * | 2013-07-09 | 2016-03-28 | 주식회사 엘지화학 | 니트릴 고무 및 이의 제조방법 |
EP2868677A1 (de) | 2013-10-30 | 2015-05-06 | LANXESS Deutschland GmbH | Nitrilgruppenhaltiger Copolymerkautschuk |
EP2868676A1 (de) * | 2013-10-30 | 2015-05-06 | LANXESS Deutschland GmbH | Funktionalisierter nitrilgruppenhaltiger Copolymerkautschuk |
BR112017024903A2 (ja) * | 2015-05-26 | 2018-07-31 | Zeon Corporation | Nitrile group content quantity saturation copolymer rubber |
KR102577552B1 (ko) | 2015-08-05 | 2023-09-11 | 니폰 제온 가부시키가이샤 | 니트릴기 함유 고포화 공중합체 고무, 가교성 고무 조성물, 및 고무 가교물 |
WO2017047571A1 (ja) | 2015-09-17 | 2017-03-23 | 日本ゼオン株式会社 | ニトリルゴム組成物、架橋性ニトリルゴム組成物およびゴム架橋物 |
EP3196240B1 (de) | 2016-01-25 | 2020-06-10 | ARLANXEO Deutschland GmbH | Hydrierte nitril-butadien-peg-acrylat-copolymere |
EP3333196B1 (de) | 2016-12-09 | 2020-05-13 | ARLANXEO Deutschland GmbH | Hydrierte nitril-dien-carbonsäureester-copolymere |
US20200140595A1 (en) | 2017-07-25 | 2020-05-07 | Arlanxeo Deutschland Gmbh | Vulcanizable Compositions Comprising Hydrogenated Nitrile-Diene-Carboxylic Ester Copolymer and Silica |
PL3728355T3 (pl) | 2017-12-21 | 2022-09-05 | Arlanxeo Deutschland Gmbh | Kopolimery nitryl-dien-ester kwasu karboksylowego |
CN112543780B (zh) * | 2018-08-17 | 2024-01-05 | 日本瑞翁株式会社 | 环状烯烃开环共聚物及其制造方法、橡胶组合物以及橡胶交联物 |
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US5651995A (en) * | 1994-09-30 | 1997-07-29 | Nippon Zeon Co., Ltd. | Highly saturated nitrile rubber, process for producing same, vulcanizable rubber composition, aqueous emulsion and adhesive composition |
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2000
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- 2000-10-16 EP EP00966508A patent/EP1247835B1/en not_active Expired - Lifetime
- 2000-10-16 DE DE60030476T patent/DE60030476T2/de not_active Expired - Lifetime
- 2000-10-16 US US10/089,103 patent/US6548604B1/en not_active Expired - Lifetime
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US8044147B2 (en) | 2005-02-23 | 2011-10-25 | Zeon Corporation | Nitrile group-containing copolymer rubber and a vulcanizable nitrile group-containing copolymer rubber composition |
Also Published As
Publication number | Publication date |
---|---|
JP4081938B2 (ja) | 2008-04-30 |
EP1247835A1 (en) | 2002-10-09 |
JP2001114940A (ja) | 2001-04-24 |
DE60030476D1 (de) | 2006-10-12 |
US6548604B1 (en) | 2003-04-15 |
EP1247835A4 (en) | 2005-01-05 |
EP1247835B1 (en) | 2006-08-30 |
DE60030476T2 (de) | 2007-05-16 |
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