EP3464452A1 - Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonit - Google Patents
Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonitInfo
- Publication number
- EP3464452A1 EP3464452A1 EP17725997.5A EP17725997A EP3464452A1 EP 3464452 A1 EP3464452 A1 EP 3464452A1 EP 17725997 A EP17725997 A EP 17725997A EP 3464452 A1 EP3464452 A1 EP 3464452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- weight
- coolant
- contact
- rubber
- 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.)
- Withdrawn
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3437—Six-membered rings condensed with carbocyclic rings
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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
- C08K5/37—Thiols
- C08K5/378—Thiols containing heterocyclic rings
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08L21/00—Compositions of unspecified rubbers
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
Definitions
- the present invention relates to a process for the preparation of a vulcanizate which is in contact with coolant and the use of a vulcanizable
- Composition containing rubber, silane-coated wollastonite and peroxide compound for the preparation of vulcanizates in contact with coolant is a compound that has been modified by a chemical vapor deposition.
- silane-coated wollastonite for the preparation of vulcanizates in contact with coolant.
- peroxide compound for the preparation of vulcanizates in contact with coolant.
- the invention further relates to a process for the preparation and the use of a vulcanizate prepared from a vulcanizable composition containing rubber, silane-coated wollastonite and peroxide compound, as a component, preferably as a gasket or as a hose, which is in contact with coolant.
- a vulcanizate prepared from a vulcanizable composition containing rubber, silane-coated wollastonite and peroxide compound, as a component, preferably as a gasket or as a hose, which is in contact with coolant.
- suitable vulcanizates must have sufficient aging resistance in both hot air and coolant, i. 25% or less change in breaking elongation after 21 days (504 hours) at 150 ° C in hot air and 25% or less change in breaking elongation after 21
- coolant a liquid substance or a mixture of substances which is used for the removal of heat.
- the coolant is capable of transporting the enthalpy along the temperature gradient to a location of lower temperature in a cooling cycle. Coolants can cool the chilled goods directly or via a heat exchanger.
- coolants for compositions containing water preferably a freezing point depressant, preferably alkyl glycol or salts, more preferably ethylene glycol or propylene glycol, and a corrosion inhibitor, preferably neutralized organic acids, more preferably sodium ethylhexanoate.
- a freezing point depressant preferably alkyl glycol or salts, more preferably ethylene glycol or propylene glycol
- a corrosion inhibitor preferably neutralized organic acids, more preferably sodium ethylhexanoate.
- Vulkanisaten lead An example of a coolant concentrate with OAT technology is G13 from Volkswagen, which contains as main components ethylene glycol and sodium ethylhexanoate and mixed with water gives a coolant according to the invention.
- WO-A-2010/030860 discloses in Examples 2 and 3 a hydrogenated nitrile rubber (HNBR) vulcanizable composition containing silane-coated wollastonite (400 Wollastocoat 10022), an acid acceptor, a metal salt and a stabilizer. This composition has rapid vulcanization, as well as improved processability, heat stability and low compression set. The composition of Example 3 additionally has a reduced and thus improved swelling in water.
- WO-A-2010/030860 has zinc oxide (ZnO) and Therban HT in addition to the silane-coated wollastonite both in the compositions of Example 2 and in Example 3.
- vulcanizable compositions containing HNBR and silane-coated wollastonite in combination with a metal salt and an acid acceptor for increasing the aging stability is described.
- WO-A-2010/030860 provides no indication of the use of the vulcanizable composition and its vulcanizates in contact with coolant and their resistance to coolants.
- WO-A-2015/146862 discloses HNBR compositions containing 3 to 20 phr wollastonite and 72 to 87 phr carbon black for abrasion resistance and pressure resistance. The Use of these compositions in contact with coolants and their swelling behavior therein are not disclosed.
- CN-A-103408810 discloses a gasket based on a composition containing, inter alia, nitrile rubber (NBR) and modified wollastonite having improved mechanical properties as well as improved abrasion resistance and heat resistance. The use of this composition in contact with coolants and their swelling behavior therein are not disclosed.
- NBR nitrile rubber
- KR20130003554 discloses a sealant composition containing HNBR and ethylene glycol as antifreeze additive. Silane-coated wollastonite is not disclosed.
- the object of the present invention was thus to provide vulcanizable compositions and methods for producing vulcanizates which have an aging resistance of 25% or less change in elongation after 21 days (504 hours) at 150 ° C in hot air and 25% or less change in the Elongation after 21 days (504 hours) at 150 ° C in coolant, and thus can be used in contact with coolants with OAT technology.
- vulcanizable compositions as well as processes which result in vulcanizates having comparable or improved swelling in the coolant as prior art vulcanizable compositions.
- vulcanizable compositions and methods which result in vulcanizates which additionally have a Shore A hardness of less than 70 in order for the material to be sufficiently elastic.
- compositions are obtained which lead to vulcanizates which meet the stated requirements and are therefore suitable for use in contact with coolants.
- the invention relates to the use of a vulcanizable composition, for producing a vulcanizate, which is in contact with coolant, characterized in that the vulcanizable composition
- Nitrile rubber or EPDM more preferably hydrogenated
- the invention thus also provides processes for the preparation of a vulcanizate which is in contact with coolant, comprising the step of vulcanizing a vulcanizable composition, characterized in that the vulcanizable composition
- Coolant resistance was known, for the high demands on the use of vulcanizates in contact with coolant is suitable.
- vulcanizable compositions and their vulcanizates as well as processes for their preparation according to the present invention, cause the components produced from the vulcanizates to have a lower degree of aging than conventional vulcanizates without silane-coated wollastonite.
- a vulcanizable composition for the preparation of a vulcanizate, which is in contact with coolant, and a process for the preparation of a vulcanizate, characterized in that the vulcanizable composition (A) 100 parts by weight of at least one rubber, in particular hydrogenated nitrile rubber or EPDM, particularly preferably hydrogenated nitrile rubber
- TMQ styrenated diphenylamine
- OCD octylated diphenylamine
- CDPA cumylated diphenylamine
- vulcanizable compositions for producing a vulcanizate which is in contact with coolant and a process for producing a vulcanizate which is in contact with coolant, comprising the step of vulcanizing a vulcanizable composition containing
- one or more customary rubber additives preferably one or more fillers, in particular carbon black, silica, magnesium oxide or aluminum oxide, one or more filler activators, in particular based on an organic silane, of one or more anti-aging agents, in particular oligomerized 2,2,4-trimethyl-1,2-dihydro-quinoline (TMQ), styrenated diphenyl
- Methylmercaptobenzimidazole (Vulkanox ZMB2) or 4- and 5-methylmercaptobenzimidazo and / or one or more mold release agents or processing aids.
- Coolant is in contact, causes a comparatively low swelling of the vulcanizate in the coolant and a smaller change in the elongation of the vulcanizate when stored in hot air and coolant occurs in comparison to known vulcanizable compositions.
- component (a) at least one typical rubber is used.
- Rubber as component (a) is, for example, nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), ethylene-propylene rubber (EPM), ethylene-propylene-diene rubber (EPDM), ethylene-vinyl acetate (EVA; EVM), natural rubber ( NR), chloroprene rubber (BR), butyl rubber (NR), polyisoprene rubber (IR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), ethylene-acrylate
- NBR nitrile rubber
- HNBR hydrogenated nitrile rubber
- EPM ethylene-propylene rubber
- EPDM ethylene-propylene-diene rubber
- EVM ethylene-vinyl acetate
- natural rubber NR
- chloroprene rubber BR
- NR butyl rubber
- IR polyisoprene rubber
- SBR styrene-butadiene rubber
- CR chloroprene
- Rubber or acrylate rubber (ACM) and any mixtures of the aforementioned rubbers.
- component (a) The use of hydrogenated nitrile rubber, EPM or EPDM as component (a) is preferred.
- the use of hydrogenated nitrile rubber as component (a) is particularly preferred.
- the total mixture of all rubbers (a) is in a range from 10 to 120, preferably in one Range of 20 to 1 10, more preferably in a range of 30 to 100.
- the determination of the Mooney viscosity is carried out according to ASTM standard D 1646.
- Said rubbers (a) are commercially available in part, but further in all cases accessible to those skilled in the literature on the literature accessible manufacturing process.
- HNBR hydrogenated nitrile rubbers
- hydrolysis or “hydrogenation” is understood as meaning a conversion of the double bonds originally present in the nitrile rubber to at least 50%, preferably at least 85%, particularly preferably at least 95%.
- any known ⁇ , ⁇ -unsaturated nitrile can be used, preferred are (C 3 -C 5 ) -a, ß-unsaturated nitriles such as acrylonitrile, methacrylonitrile, ethacrylonitrile or mixtures thereof. Particularly preferred is acrylonitrile.
- the conjugated diene can be of any nature. Preference is given to using (C 4 -C 6 ) conjugated dienes. Particular preference is given to 1,3-butadiene, isoprene, 2,3-dimethylbutadiene, piperylene or mixtures thereof. Particular preference is given to 1,3-butadiene and isoprene or mixtures thereof. Very particular preference is 1,3-butadiene.
- the proportions of conjugated diene and ⁇ , ⁇ -unsaturated nitrile in the hydrogenated nitrile rubbers can be varied widely.
- the proportion of or the sum of the conjugated dienes is usually in the range of 40 to 90 wt .-%, and preferably in the range of 50 to 80 wt .-%, based on the total polymer.
- the proportion of or the sum of the ⁇ , ⁇ -unsaturated nitriles is usually in the range of 10 to 60 wt .-%, and preferably in the range of 20 to 50 wt .-%, based on the total polymer.
- the additional monomers may be present in amounts ranging from 0.1 to 40% by weight, preferably in the range of from 1 to 30% by weight, based on the total polymer.
- corresponding proportions of the conjugated diene (s) and / or the ⁇ or ⁇ -unsaturated nitriles are replaced by Substitutes replaced the additional monomers, wherein the proportions of all monomers add up to 100 wt .-% each.
- the selective hydrogenation can be achieved, for example, in the presence of a rhodium-containing catalyst. It is possible, for example, to use a catalyst of the general formula
- R 1 are the same or different and represent a C 1 -C 8 alkyl group, a C 4 -C 8 cycloalkyl group, a C 6 -C 15 aryl group or a C 7 -C 15 aralkyl group,
- X is hydrogen or an anion, preferably halogen and particularly preferably chlorine or bromine
- I is 2,3 or 4
- m is 2 or 3
- n is 1, 2 or 3, preferably 1 or 3.
- Preferred catalysts are tris (triphenylphosphine) rhodium (I) chloride, tris (triphenylphosphine) rhodium (III) chloride and tris (dimethylsulfoxide) rhodium (III) chloride and tetrakis (triphenylphosphine) rhodium hydride of the formula ((C 6 H 5) 3 P) 4 RhH and the corresponding compounds in which the triphenylphosphine has been wholly or partly replaced by tricyclohexylphosphine.
- the catalyst can be used in small quantities.
- An amount in the range of 0.01 to 1 wt .-%, preferably in the range of 0.03 to 0.5 wt .-% and particularly preferably in the range of 0.1 to 0.3 wt .-% based on the Weight of the polymer are suitable.
- cocatalyst which is a ligand of the formula R 1 m B, where R 1 , m and B have the meanings given above for the catalyst.
- R 1 , m and B have the meanings given above for the catalyst.
- m is 3
- B is phosphorus and the radicals R 1 may be the same or different.
- co-catalysts with trialkyl, tricycloalkyl, triaryl, triaralkyl, diarylmonoalkyl, diarylmonocycloalkyl, dialkylmonoaryl, dialkylmonocycloalkyl, dicycloalkylmonoaryl or dicyclalkylmonoaryl radicals.
- co-catalysts can be found, for example, in US Pat. No. 4,631,315.
- Preferred co-catalyst is triphenylphosphine.
- the co-catalyst is preferably used in amounts ranging from 0.3 to 5 wt .-%, more preferably in the range of 0.5 to 4 wt .-%, based on the weight of the nitrile rubber to be hydrogenated.
- the weight ratio of the Rhodium-containing catalyst to co-catalyst in the range of 1: 3 to 1:55, particularly preferably in the range of 1: 5 to 1: 45.
- 0.1 to 33 parts by weight of the co-catalyst preferably 0.5 to 20 and most preferably 1 to 5 parts by weight, especially more than 2 but less than 5 parts by weight of co-catalyst are suitably obtained used for 100 parts by weight of the nitrile rubber to be hydrogenated.
- heterogeneous catalysts for the preparation of hydrogenated nitrile rubbers by hydrogenation of the corresponding nitrile rubbers is usually supported catalysts based on palladium.
- the Mooney viscosity (ML 1 +4 measured at 100 ° C.) of the hydrogenated nitrile rubber (a) used or, if several hydrogenated nitrile rubbers (a) are used, of the total mixture of all hydrogenated nitrile rubbers (a) is in the range from 10 to 120, preferably in a range of 15 to 100.
- the determination of the Mooney viscosity is carried out according to ASTM Standard D 1646.
- the hydrogenated nitrile rubber according to the invention has a content of residual double bonds (RDB) of 10% or less, preferably 7% or less, particularly preferably 1% or less.
- RDB residual double bonds
- the hydrogenated nitrile rubbers which can be used in the vulcanizable composition according to the invention have a glass transition temperature of less than -10 ° C., preferably less than -15 ° C., more preferably less than -20 ° C., measured by DSC at a heating rate of 20 K / min.
- Examples of commercially available hydrogenated nitrile rubbers are fully and partially hydrogenated nitrile rubbers with acrylonitrile contents in the range 17 to 50 wt .-% (Therban ® range of ARLANXEO Germany GmbH and Zetpol ® - range of Nippon Zeon Corporation).
- An example of hydrogenated butadiene / acrylonitrile / acrylate polymers is the Therban ® LT series of ARLANXEO Germany GmbH, For example Therban ® LT 1707 VP, Therban ® LT 2157 and Therban ® LT 2007.
- An example of carboxylated hydrogenated nitrile rubbers is the Therban ® XT series of ARLANXEO Germany GmbH.
- An example of hydrogenated nitrile rubbers with low Mooney viscosities and therefore with improved processability are products from the Therban ® AT-series, for example Therban ® AT 3404th
- the hydrogenated nitrile rubber may contain, in addition to repeating units of at least one unsaturated nitrile and at least one conjugated diene, one or more further copolymerizable monomers in the form of carboxylic acids or carboxylic acid esters.
- Suitable einpolymerisierbare carboxylic acids are mono- or dicarboxylic acids having 3 to 18 carbon atoms, which are unsaturated in ⁇ , ⁇ -position, and their esters.
- Preferred ⁇ , ⁇ -unsaturated carboxylic acids are acrylic acid, methacrylic acid, itaconic acid, fumaric acid, maleic acid, crotonic acid and mixtures thereof.
- Esters of the ⁇ , ⁇ -unsaturated carboxylic acids having 3 to 18 carbon atoms preferably include the alkyl esters and the alkoxyalkyl esters of the aforementioned carboxylic acids.
- Preferred esters of ⁇ , ⁇ -unsaturated carboxylic acids having 3 to 18 carbon atoms are methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, octyl acrylate and polyethylene glycol (meth) acrylate (PEG (meth) acrylate) having 1 to 8 ethylene glycol repeating units
- Preferred alkoxyalkyl esters are polyethylene glycol (meth) acrylate (PEG (meth) acrylate) having 1 to 8 ethylene glycol repeating units and butyl acrylates.
- esters of the ⁇ , ⁇ -ethylenically unsaturated dicarboxylic acid Monoester for example, o alkyl, preferably C 4 -C 8 alkyl, preferably n-butyl, tert-butyl, n-pentyl or n-hexyl, especially preferably mono-n-butyl maleate, mono-n-butyl fumarate, mono-n-butylcitraconate, mono-n-butyl itaconate; o Alkoxyalkyl, in particular CrCl 8 -alkoxyalkyl, preferably C 4 -C 2 -alkoxyalkyl, o Polyethylenglycolester (PEG) with 1 to 8 ethylene glycol repeating units o hydroxyalkyl, in particular C 4 -C 8 -hydroxyalkyl, preferably C 4 -Ci 2 - hydroxyalkyl, Cycloalkyl, in particular C 5 -C 18
- Alkylcycloalkyl in particular C 6 -C 2 -Alkylcycloalkyl-, preferably C 7 -C 0 - alkylcycloalkyl, particularly preferably Monomethylcyclopentylmaleat and Monoethylcyclohexylmaleat, Monomethylcyclopentylfumarat and
- Aryl especially C 6 -C 4 -aryl monoesters, preferred
- Maleic monoaryl esters, fumaric monoaryl esters, citraconic monoaryl esters or itaconic monoaryl esters more preferably monophenyl maleate or monobenzyl maleate, monophenyl fumarate or monobenzyl fumarate, monophenyl citrate or monobenzyl citraconate, monophenyl itaconate or monobenzyl itaconate or mixtures thereof, unsaturated polycarboxylic acid polyalkyl esters such as dimethyl maleate, dimethyl fumarate, dimethyl itaconates or diethyl itaconates; or amino group-containing ⁇ , ⁇ -ethylenically unsaturated carboxylic acid esters such as dimethylaminomethyl acrylate or diethylaminoethyl acrylate.
- the vulcanizable composition according to the invention contains as component (b) at least one silane-coated wollastonite.
- the silanes used to coat the wollastonites are silanes having at least one functionalization which can react with the filler surface, and preferably with a second functionalization which occurs after vulcanization associates the modified filler with the polymer matrix, such as vinyl groups.
- Preferred silanes are epoxysilane, methacrylsilane, vinylsilane or aminosilane.
- silanes are epoxysilane, methacrylsilane and vinylsilane.
- Very particularly preferred silane is vinylsilane.
- compositions containing rubber, peroxide compound and wollastonite with Vinylsilan coating lead to a further improvement of aging.
- Vulcanizates containing vinylsilane-coated wollastonite show the best balance between change in elongation at break, volume swelling and change in tensile strength after aging for 1008 hours in G13, and are therefore better than vulcanizates with epoxysilane-coated wollastonite or methacylsilane-coated wollastonite.
- Wollastonites are naturally occurring calcium silicate minerals of the formula CaSiO 3 . Wollastonites have a white color and a basic pH of greater than 7. The wollastonites used in the examples have an aspect ratio of 3: 1 to 5: 1. Silane-coated wollastonite is commercially available under the brand name Tremin ® from quartz movements.
- compositions according to the invention based on 100 parts by weight of the rubbers (a), 35 to 150 parts by weight, particularly preferably 50 to 100 parts by weight, of at least one silane-coated wollastonite are used.
- At least one peroxide compound is used as crosslinking agent.
- peroxide compound (c) for example, the following peroxide compounds are suitable:
- the at least one peroxide compound of the vulcanizable composition according to the invention is preferably an organic peroxide, in particular dicumyl peroxide, tert-butylcumyl peroxide, bis (tert-butyl-peroxy-isopropyl) benzene, di-tert-butyl peroxide, 2,5-dimethylhexane-2,5- dihydroperoxide, 2,5-dimethylhexine-3,2,5-dihydroperoxide, dibenzoyl peroxide, bis (2,4-dichlorobenzoyl) peroxide, tert-butyl perbenzoate, 4,4-di (tert-butylperoxy) valeric acid butyl ester and / or 1 , 1 - bis (tert-butylperoxy) -3,3,5-trimethylcyclohexane.
- organic peroxide in particular dicumyl peroxide, tert-butylcum
- the component (c) is preferably present in the vulcanizable compositions according to the invention in an amount of from 1 to 20 parts by weight, more preferably in an amount of from 2 to 10 parts by weight, based on 100 parts by weight of the rubbers (a). , in front.
- the vulcanizable composition may contain other rubber additives.
- Typical rubber additives include, but are not limited to, polymers not falling within the definition of component (a), filler activators, oils, especially processing oils or extender oils, plasticizers, processing aids, accelerators, multifunctional crosslinkers, antiwear agents, antiozonants, antioxidants, mold release agents, retarders, others Stabilizers and antioxidants, dyes, fibers comprising organic and inorganic fibers and fiber pulp, vulcanization activators, and additional polymerizable monomers, dimers, trimers or oligomers.
- Suitable filler activators are, in particular, organic silanes, for example vinyltrimethyloxysilane, vinyldimethoxymethylsilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxy) silane, N-cyclohexyl-3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane, dimethyldiethoxysilane, trimethylethoxysilane,
- organic silanes for example vinyltrimethyloxysilane, vinyldimethoxymethylsilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxy) silane, N-cyclohexyl-3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, methyltrimethoxysilane, methyltriethoxysi
- filler activators are, for example, surfactants such as triethanolamine or ethylene glycols having molecular weights of 74 to 10,000 g / mol.
- the amount of filler activators is usually 0.5 to 10 parts by weight based on 100 parts by weight of the
- Suitable anti-aging agents are, in particular, those which scavenge as few radicals as possible during peroxidic vulcanization. These are in particular oligomerized 2,2,4-trimethyl-1,2-dihydro-quinoline (TMQ), styrenated diphenylamine (DDA), octylated diphenylamine (OCD) cumylated
- TMQ 2,2,4-trimethyl-1,2-dihydro-quinoline
- DDA styrenated diphenylamine
- OCD octylated diphenylamine
- CDPA Diphenylamine
- MB2 4- and 5-methylmercaptobenzimidazole
- ZMB2 zinc salt of 4- and 5-methylmercaptobenzimidazole
- CDPA Diphenylamine
- MB2 4- and 5-methylmercaptobenzimidazole
- ZMB2 zinc salt of 4- and 5-methylmercaptobenzimidazole
- the anti-aging agents are usually used in amounts of from 0.1 to 5 parts by weight, preferably from 0.3 to 3 parts by weight, based on 100 parts by weight of the rubbers (a).
- Suitable mold release agents are, for example: saturated or partially unsaturated fatty and oleic acids or their derivatives (in the form of fatty acid esters, fatty acid salts, fatty alcohols or fatty acid amides), furthermore products applicable to the mold surface, such as products based on low molecular weight silicone compounds, products based on of fluoropolymers as well as products based on phenolic resins.
- the mold release agents are used as a blend component in amounts of 0.2 to 10 parts by weight, preferably 0.5 to 5 parts by weight, based on 100 parts by weight of the rubbers (a). It is also possible to reinforce the vulcanizates with glass strengtheners according to the teaching of US Pat. No. 4,826,721 and also to reinforce them with aromatic polyamides (aramid).
- a vulcanizable composition is used to prepare a vulcanizate which is in contact with coolant, characterized in that the vulcanizable composition
- (D) 0 to 100 parts by weight, preferably 1 to 80 parts by weight of one or more conventional rubber additives, preferably one or more fillers, in particular carbon black, silica, magnesium oxide or aluminum oxide, one or more filler activators, in particular based on an organic Silanes, one or more anti-aging agents, in particular oligomerized 2,2,4-trimethyl-1,2-dihydro-quinoline (TMQ), styrenated diphenylamine (DDA), octylated diphenylamine (OCD), cumylated diphenylamine (CDPA) or zinc salt of 4- and 5-methylmercaptobenzimidazole (Vulkanox ZMB2) or 4- and 5-methylmercaptobenzimidazole and / or one or more mold release agents or processing aids based on 100 parts by weight of the rubbers (a),
- one or more conventional rubber additives preferably one or more fillers, in particular carbon black, silica, magnesium oxide or aluminum oxide, one or more filler activators,
- the content of zinc ions is less than 1.5 parts by weight based on 100 parts by weight of the rubbers (a), and the vulcanizable composition is preferably free of zinc ions.
- Such preferred embodiments have improved hot air aging after 504 hours at 150 ° C.
- a particularly preferred embodiment provides the use of vulcanizable compositions for the preparation of a vulcanizate, which with Coolant is in contact and a method for producing a vulcanizate, which is in contact with coolant, comprising the step of vulcanizing a vulcanizable composition, containing
- composition has a content of zinc ions of less than 1, 5 parts by weight based on 100 parts by weight of the rubbers (a).
- the invention further provides a process for preparing the abovementioned vulcanizable compositions according to the invention by mixing all components (a), (b) and (c) and, if appropriate, (d). This can be done using devices and mixing apparatuses known to those skilled in the art.
- the order in which the components are mixed with each other is not fundamental, but is always tailored to the available mixing units and temperature control.
- the mixture of components (a), (b) and (c) and optionally (d) can be carried out, depending on the temperature, using the typical, common in the rubber industry mixing systems. It is possible to use i) discontinuously mixing aggregates in the form of mixing rolls or internal mixers, and ii) continuously mixing aggregates such as mixing extruders.
- the rubber (a) is initially charged, masticated and then all other components are added except for the vulcanization chemicals (peroxide compound and coagent). After a suitable mixing time, the mixture is ejected. The peroxide compound and the coagent are mixed in a second step on a roller.
- the vulcanizable compositions are obtained, for example, in the form of so-called “skins", feeding strips or feed bodies, or else as pellets or granules. These can then be pressed into molds or injection molded and are crosslinked according to the radical donors used under suitable conditions.
- the invention further relates to the preparation of vulcanizates by subjecting the aforesaid vulcanizable compositions to vulcanization, i. an energy input, in particular a temperature treatment subject.
- the energy input can take place, for example, in the form of thermal energy.
- the preparation of the vulcanized products by means of temperature treatment is carried out by reacting the vulcanizable compositions according to the invention in a customary manner, i. for a period of one minute to 300 minutes, in suitable molds a temperature in the range of preferably 120 to 200 ° C, particularly preferably from 140 to 180 ° C exposes.
- the vulcanization may be effected by any method such as press vulcanization, steam vulcanization and the like.
- crosslinking the vulcanizable invention In the context of crosslinking the vulcanizable invention
- Composition lead the peroxide compounds (c) to a radical crosslinking between and with the rubbers used (a).
- the invention furthermore also relates to the crosslinked rubbers, i. Vulcanizates obtained by crosslinking the aforesaid vulcanizable
- compositions are available and the use of vulcanizates for the preparation of a component which is in contact with coolant.
- the invention relates to the use of a vulcanizate prepared from a vulcanizable composition for the preparation of a
- the vulcanizable composition (a) at least one rubber, preferably at least one hydrogenated nitrile rubber or EPDEM, particularly preferably hydrogenated nitrile rubber,
- (c) contains at least one peroxide compound.
- the invention also relates to components comprising a vulcanizate which is in contact with a coolant, prepared from a vulcanizable composition, characterized in that the vulcanizable composition
- (c) contains at least one peroxide compound.
- compositions comprising a vulcanizate which is in contact with a coolant, prepared from a vulcanizable composition, characterized in that the vulcanizable composition
- These components are preferably seals, radiator seals, hoses, radiator hoses, automotive coolant hoses,
- Heating hoses and radiator housing are Heating hoses and radiator housing.
- the invention thus also provides methods for producing a component which is in contact with coolant, comprising the step of vulcanizing a vulcanizable composition according to the invention and contacting it with coolant.
- the vulcanizates obtained by vulcanizing the vulcanizable composition can be processed into a radiator hose, a heater hose, a radiator housing, a radiator seal or the like by a conventional method, and these products are particularly excellent products having the above-described properties.
- such a radiator hose, a heater hose, a radiator housing, a radiator seal or the like can be processed into a radiator hose, a heater hose, a radiator housing, a radiator seal or the like by a conventional method, and these products are particularly excellent products having the above-described properties.
- Vulkanisate an improved aging resistance Vulkanisate an improved aging resistance.
- the invention further provides the use of a vulcanizable composition for producing a vulcanizate which is in contact with coolant, characterized in that the vulcanizable composition
- (c) contains at least one peroxide compound.
- the invention furthermore relates to the use of a vulcanizable composition mentioned above for producing a vulcanizate which is in contact with coolant, characterized in that the at least one rubber (a) is at least one hydrogenated nitrile rubber, which is a whole or partially hydrogenated co- or terpolymer based on at least one conjugated diene and at least one ⁇ , ⁇ -unsaturated nitrile monomer and optionally other copolymerizable monomers.
- the at least one rubber (a) is at least one hydrogenated nitrile rubber, which is a whole or partially hydrogenated co- or terpolymer based on at least one conjugated diene and at least one ⁇ , ⁇ -unsaturated nitrile monomer and optionally other copolymerizable monomers.
- the invention furthermore relates to the use of a vulcanizable composition mentioned above for producing a vulcanizate which is in contact with coolant, characterized in that the at least one rubber (a) is at least one hydrogenated nitrile rubber in which the Mooney viscosity (ML 1 +4 @ 100 ° C) in the range of 10 to 120 ME, preferably in the range of 15 to 100 ME, wherein the determination of the Mooney viscosity according to ASTM Norm D1646 takes place.
- the at least one rubber (a) is at least one hydrogenated nitrile rubber in which the Mooney viscosity (ML 1 +4 @ 100 ° C) in the range of 10 to 120 ME, preferably in the range of 15 to 100 ME, wherein the determination of the Mooney viscosity according to ASTM Norm D1646 takes place.
- the invention further relates to the use of a vulcanizable composition for the production of a vulcanizate, which with
- Coolant is in contact, characterized in that the amount of at least one silane-coated wollastonite (b) 35 to 150 parts by weight, preferably 50 to 100 parts by weight based on 100 parts by weight of the rubbers (a).
- the invention further provides the use of a vulcanizable composition for producing a vulcanizate which is in contact with coolant, characterized in that the at least one peroxide compound (c) is an organic peroxide, preferably dicumyl peroxide, t-butyl cumyl peroxide, bis (t -butyl peroxy-isopropyl) benzene, di-t-butyl peroxide, 2,5-dimethylhexane-2,5-dihydroperoxide, 2,5-dimethylhexine-3,2,5-dihydroperoxide, dibenzoyl peroxide, bis (2, 4-dichlorobenzoyl) peroxide, t-butyl perbenzoate, 4,4-di (t-butylperoxy) valeric acid butyl ester or 1,1-bis (t-butylperoxy) -3,3,5-trimethylcyclohexane.
- the invention further provides the use of a vulcanizable composition for producing a vulcanizate which is in contact with coolant, characterized in that at least one filler which is a carbon black or mineral filler is used as further component (d) , preferably a basic mineral filler.
- the invention further provides the use of a vulcanizable composition for producing a vulcanizate which is in contact with coolant, characterized in that as component (d) at least one anti-aging agent is used, which is selected from the group consisting of diphenylamine, mercaptobenzimidazole , substituted phenols and mixtures thereof.
- the invention further provides the use of a previously mentioned vulcanizable composition for producing a vulcanizate which is in contact with coolant, characterized in that the composition
- one or more customary rubber additives preferably one
- the invention further relates to the use of a vulcanizable composition for producing a vulcanizate which is in contact with coolant, characterized in that the vulcanizable composition
- Filler activators in particular based on an organic silane, one or more anti-aging agents, in particular oligomerized 2,2,4-trimethyl-1, 2-dihydro-quinoline (TMQ), styrenated diphenylamine (DDA), octylated diphenylamine (OCD), cumylated diphenylamine (CDPA) or zinc salt of 4- and 5-methylmercaptobenzimidazole (Vulkanox ZMB2) or 4- and 5-
- the invention further relates to the use of a vulcanizate prepared from a vulcanizable composition mentioned above for producing a component of which at least the vulcanizate is in contact with coolant.
- the invention further provides for the use of a vulcanizate prepared from a vulcanizable composition mentioned above, characterized in that the component is a hose, a heating hose, a cooling hose, a gasket or a cooling gasket.
- the invention furthermore relates to the use of a vulcanizable composition mentioned above for producing a vulcanizate which is in contact with coolant, the coolant being water, a freezing point depressant, preferably alkyl glycol or salts, more preferably ethylene glycol or propylene glycol, and a corrosion inhibitor, preferably neutralized organic Acids, more preferably sodium ethylhexanoate.
- the invention thus further provides for the use of 35 to 150 parts by weight of silane-coated wollastonite, preferably vinylsilane-coated wollastonite, based on 100 parts by weight of the rubbers (a) in a vulcanizable composition comprising at least one rubber (a). and at least one
- the invention furthermore relates to cooling units which i) comprise at least one vulcanizate prepared from a vulcanizable mixture comprising the abovementioned component (a), (b) and (c) and ii) coolant.
- cooling units which i) comprise at least one vulcanizate prepared from a vulcanizable mixture comprising the abovementioned component (a), (b) and (c) and ii) coolant.
- refrigeration units are cooling devices for motor vehicles.
- the invention thus further comprising vulcanizable compositions (a) 100 parts by weight hydrogenated nitrile rubber,
- Parts of the rubbers (a) is.
- Examples 7 * and 8 * are comparative examples not according to the invention, examples 1 to 6 and 9 are examples according to the invention.
- the comparative examples are identified in the following tables with a * after the example number.
- the primary mixing unit used was an internal mixer of the type GK 1, 5 E (manufacturer: HF Mixing Group). The speed was 40 min "1 , the cooling water inlet temperature 40 ° C.
- the rubber (a) was initially masticated for 1 minute, then all other components were added except for the vulcanization chemicals (peroxide compound and coagens). 3 minutes after the beginning of the mixture, the stamp was pulled and swept. After 250 seconds of mixing, the mixture was ejected.
- the peroxide compound and the coagent were mixed in a second step at 30 ° C on the roller. (Manufacturer comforter, roll diameter 20 cm). The friction was 1: 1, 1 1.
- Maglite ® DE magnesium oxide available from CP Hall.
- Zinc Oxide Active Zinc Oxide commercially available from LANXESS
- Rhenofit ® TRIM / S 70% trimethylolpropane trimethacrylate 30% silica
- silica available from Akzo Nobel Polymer Chemicals BV
- the amount amount of the parts by weight in the examples refers to 100 parts by weight of the rubber (a).
- the MDR (Moving Die Rheometer) cure and its analytical data were measured on a Monsanto MDR 2000 rheometer according to ASTM D5289-95.
- Shore A hardness was measured according to ASTM-D2240-81.
- Hot air aging was carried out in accordance with DIN 53508/2000.
- the procedure 4.1 .1 "Storage in the oven with positive ventilation" was used.
- the storage in the G13 / water mixture was carried out in pressure vessels with a ratio of liquid to sample of 150: 1.
- Table 1 Composition of vulcanizable compositions.
- Example 7 * serves as a comparative experiment to Examples 1 to 6, since it contains no silane coated wollastonite (Tremin ®).
- Temin ® silane coated wollastonite
- the amount of 65 parts by weight of wollastonite based on 100 parts by weight of HNBR in Examples 1 to 6 was compensated in Example 7 * by the filler N990.
- Example 8 * serves as a comparative experiment to Example 9, since it contains no silane coated wollastonite (Tremin ®).
- the amount of 65 parts by weight of wollastonite in Example 9 was balanced in Example 8 * by 50 parts by weight of the filler N550 to achieve similar tensile strength values. You need significantly less N550 than Tremin ® to get similar hardness and tensile strength.
- the vulcanization measurement was carried out in a Monsanto rheometer MDR 2000 at a test temperature of 180 ° C over a test time of 15 min.
- S 'max is the maximum torque of the cross-linking isotherm
- compositions (1 to 6) prepared according to the invention have a vulcanization behavior comparable to Comparative Example (7 * ).
- inventive Rubber mixture (9) comparable to Comparative Example (8 * ) vulcanization behavior.
- the vulcanizable compositions were then vulcanized in a platen press under a pressure of 170 bar at 180 ° C for 10 min.
- the unaged comparative vulcanizate 7 * has a lower elongation at break and tensile strength than the vulcanizates 4 to 6 according to the invention.
- the unagedindexvulkanisat 8 * has a much lower
- the two comparative vulcanizates have a hardness (H) of 70 or more, while the vulcanizates 1 to 6 and 9 according to the invention have a hardness of less than 70.
- Example 6 with EST-coated wollastonite and without zinc has the lowest value with -8% change in elongation at break, thus providing the best hot air aging.
- Table 6 Properties of the vulcanized compositions 8 and 9 and their modification after aging in ethylene glycol / water / 2-ethylhexanoic acid at 120 ° C./504 h (test temperature: 23 ° C.)
- Example 9 according to the invention with silane-coated wollastonite has one compared to comparative example 8 * without silane-coated wollastonite markedly improved elongation at break after aging for 504 hours in an ethylene glycol / water / 2-ethylhexanoic acid mixture.
- Example 9 according to the invention has an improved swelling (AV).
- Vulcanizates with VST-coated wollastonite exhibit the best balance between change in elongation at break, volume swelling and change in tensile strength after aging for 1008 hours in G13, and are thus better than vulcanizates with epoxysilane-coated wollastonite or methacylsilane-coated wollastonite.
- Comparative Example 7 * has the highest and thus worst value with a change in the elongation at break of 19% after aging for 504 hours in G13.
- Examples 4 to 6 according to the invention have a significantly lower change in the elongation at break.
- the vulcanization measurement was carried out in a Monsanto rheometer MDR 2000 at a test temperature of 180 ° C over a test time of 20 min.
- the two vulcanizates have a hardness of less than 70.
- Table 16 Properties of the vulcanized composition 10 and its modification after aging in Glysantin G64 / water at 150 ° C./504 h (test temperature: 23 ° C.)
- Vulcanizates of hydrogenated acrylate-containing nitrile rubber with VST-coated wollastonite show a small change in the elongation at break after hot air aging of -12% and a small change in the elongation at break after storage in coolant (G64 / water) of 4%.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP16001280.3A EP3255088B1 (de) | 2016-06-07 | 2016-06-07 | Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonit |
PCT/EP2017/063177 WO2017211645A1 (de) | 2016-06-07 | 2017-05-31 | Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonit |
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EP3464452A1 true EP3464452A1 (de) | 2019-04-10 |
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EP16001280.3A Active EP3255088B1 (de) | 2016-06-07 | 2016-06-07 | Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonit |
EP17725997.5A Withdrawn EP3464452A1 (de) | 2016-06-07 | 2017-05-31 | Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonit |
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EP16001280.3A Active EP3255088B1 (de) | 2016-06-07 | 2016-06-07 | Verwendung von vulkanisierbaren zusammensetzungen und vulkanisaten in kontakt mit kühlmittel enthaltend silan-beschichteten wollastonit |
Country Status (6)
Country | Link |
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US (1) | US20200131349A1 (de) |
EP (2) | EP3255088B1 (de) |
JP (1) | JP6802294B2 (de) |
KR (1) | KR102320627B1 (de) |
CN (1) | CN109312118B (de) |
WO (1) | WO2017211645A1 (de) |
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EP3781624B1 (de) | 2018-04-19 | 2022-06-29 | ARLANXEO Deutschland GmbH | Verwendung von vulkanisaten mit hnbr-peg-acrylat-copolymer in kontakt mit einem kühlmittel |
CN115010994B (zh) * | 2022-05-13 | 2023-12-05 | 江西广源化工有限责任公司 | 一种改性超细硅灰石粉体及其制备方法和应用 |
Family Cites Families (24)
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US3700637A (en) | 1970-05-08 | 1972-10-24 | Shell Oil Co | Diene-nitrile rubbers |
DE2539132C2 (de) | 1975-09-03 | 1987-04-09 | Bayer Ag, 5090 Leverkusen | Verwendung hydrierter Dien-Copolymere als temperaturbeständige Materialien auf dem Dichtungssektor |
CA1220300A (en) | 1982-12-08 | 1987-04-07 | Polysar Limited | Polymer hydrogenation process |
CA1203047A (en) | 1982-12-08 | 1986-04-08 | Hormoz Azizian | Polymer hydrogenation process |
DE3329974A1 (de) | 1983-08-19 | 1985-02-28 | Bayer Ag, 5090 Leverkusen | Herstellung von hydrierten nitrilkautschuken |
DE3433392A1 (de) | 1984-09-12 | 1986-03-20 | Bayer Ag, 5090 Leverkusen | Hydrierung nitrilgruppenhaltiger ungesaettigter polymerer |
DE3529252A1 (de) | 1985-08-16 | 1987-02-19 | Bayer Ag | Verfahren zur selektiven hydrierung ungesaettigter verbindungen |
DE3540918A1 (de) | 1985-11-19 | 1987-05-21 | Bayer Ag | Verfahren zur selektiven hydrierung ungesaettigter verbindungen |
DE3541689A1 (de) | 1985-11-26 | 1987-05-27 | Bayer Ag | Verfahren zur selektiven hydrierung nitrilgruppenhaltiger ungesaettigter polymerer |
US4715607A (en) | 1986-02-18 | 1987-12-29 | Acushnet Company | Golf ball composition |
DE3618907A1 (de) | 1986-06-05 | 1987-12-10 | Bayer Ag | Verbundwerkstoffe aus vorbehandeltem fasermaterial und vulkanisaten aus hnbr |
US4816525A (en) | 1987-07-06 | 1989-03-28 | University Of Waterloo | Polymer hydrogenation process |
DE4025781A1 (de) | 1990-08-15 | 1992-02-20 | Bayer Ag | Hydrierte butadien/isopren/(meth-)acrylnitril- copolymerisate |
US6326436B2 (en) * | 1998-08-21 | 2001-12-04 | Dupont Dow Elastomers, L.L.C. | Fluoroelastomer composition having excellent processability and low temperature properties |
CA2304501A1 (en) | 2000-04-10 | 2001-10-10 | Bayer Inc. | Process for hydrogenating carboxylated nitrile rubber, the hydrogenated rubber and its uses |
CA2329844A1 (en) | 2000-12-28 | 2002-06-28 | Bayer Inc. | Esbo enhanced hydrogenation |
US7138470B2 (en) * | 2004-01-16 | 2006-11-21 | 3M Innovative Properties Company | Fluoroelastomers with improved low temperature property and method for making the same |
US7449523B2 (en) * | 2004-12-27 | 2008-11-11 | Freudenberg-Nok General Partnership | Fluorocarbon elastomer compositions containing wear reducing additives |
DE102005062075A1 (de) * | 2005-12-22 | 2007-06-28 | Lanxess Deutschland Gmbh | Neue Kautschuk-Thermoplast-Mehrkomponenten-Systeme, daraus herstellte Kautschuk-Thermoplast-Verbund-Formteile, Verfahren zu ihrer Herstellung und ihre Verwendung |
JP5629686B2 (ja) * | 2008-09-12 | 2014-11-26 | ランクセス・インコーポレーテッド | 改良された耐熱性、圧縮永久ひずみ、および加工性を有する新規なエラストマー組成物 |
JP5291608B2 (ja) * | 2009-12-11 | 2013-09-18 | オムロン株式会社 | ゴム組成物およびその利用 |
KR20130003554A (ko) | 2011-06-30 | 2013-01-09 | 평화오일씰공업주식회사 | 차량의 써머스탯 가스켓의 고무 조성물 |
CN103408810A (zh) | 2013-07-01 | 2013-11-27 | 芜湖市银鸿液压件有限公司 | 一种液压缸用密封垫及其制备方法 |
WO2015146862A1 (ja) | 2014-03-28 | 2015-10-01 | Nok株式会社 | Hnbr組成物及びhnbr架橋体 |
-
2016
- 2016-06-07 EP EP16001280.3A patent/EP3255088B1/de active Active
-
2017
- 2017-05-31 US US16/305,249 patent/US20200131349A1/en not_active Abandoned
- 2017-05-31 WO PCT/EP2017/063177 patent/WO2017211645A1/de unknown
- 2017-05-31 EP EP17725997.5A patent/EP3464452A1/de not_active Withdrawn
- 2017-05-31 KR KR1020187035083A patent/KR102320627B1/ko active IP Right Grant
- 2017-05-31 JP JP2018563879A patent/JP6802294B2/ja active Active
- 2017-05-31 CN CN201780035047.3A patent/CN109312118B/zh active Active
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KR20190018136A (ko) | 2019-02-21 |
CN109312118B (zh) | 2021-04-06 |
JP6802294B2 (ja) | 2020-12-16 |
JP2019518840A (ja) | 2019-07-04 |
EP3255088B1 (de) | 2020-04-29 |
EP3255088A1 (de) | 2017-12-13 |
KR102320627B1 (ko) | 2021-11-04 |
WO2017211645A1 (de) | 2017-12-14 |
CN109312118A (zh) | 2019-02-05 |
US20200131349A1 (en) | 2020-04-30 |
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