WO2022243486A1 - Oberflächenmodifizierte organische füllstoffe und diese enthaltende kautschukzusammensetzungen - Google Patents
Oberflächenmodifizierte organische füllstoffe und diese enthaltende kautschukzusammensetzungen Download PDFInfo
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- WO2022243486A1 WO2022243486A1 PCT/EP2022/063657 EP2022063657W WO2022243486A1 WO 2022243486 A1 WO2022243486 A1 WO 2022243486A1 EP 2022063657 W EP2022063657 W EP 2022063657W WO 2022243486 A1 WO2022243486 A1 WO 2022243486A1
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- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- CSNJTIWCTNEOSW-UHFFFAOYSA-N carbamothioylsulfanyl carbamodithioate Chemical compound NC(=S)SSC(N)=S CSNJTIWCTNEOSW-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
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- 230000005494 condensation Effects 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 125000002228 disulfide group Chemical group 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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- 238000013213 extrapolation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- MHMNJMPURVTYEJ-UHFFFAOYSA-N fluorescein-5-isothiocyanate Chemical compound O1C(=O)C2=CC(N=C=S)=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 MHMNJMPURVTYEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 238000010060 peroxide vulcanization Methods 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- VOVUARRWDCVURC-UHFFFAOYSA-N thiirane Chemical compound C1CS1 VOVUARRWDCVURC-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0008—Compositions of the inner liner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0025—Compositions of the sidewalls
-
- 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
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/005—Lignin
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/006—Additives being defined by their surface area
-
- 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
- C08K2201/019—Specific properties of additives the composition being defined by the absence of a certain additive
Definitions
- the individual tire components are specialized and consist of a variety of different materials, such as metals, polymeric textile materials and various rubber-based components.
- the tread is largely responsible for the driving characteristics.
- the rubber composition of the tread determines the abrasion behavior and the dynamic driving characteristics in different weather conditions (on wet and dry roads, in cold and warm weather, on ice and snow).
- the profile design is in turn largely responsible for the behavior of the tire in aquaplaning and in the wet, as well as on snow, and also determines the noise behavior.
- silanized precipitated silicas as reinforcing fillers improves the rolling resistance compared to industrial carbon blacks due to a chemical bond between the precipitated silica and the elastomer of the rubber mixture, and at the same time wet grip is improved by the polarity on the surface of the precipitated silica.
- Tire abrasion is fundamental when using precipitated silica compared to carbon black deteriorated, but this can be counteracted by a suitable choice of the elastomers used (e.g. by using polybutadiene).
- EP 3470 457 A1 describes rubber mixtures which contain FITC lignin.
- the disadvantage of using such HTC lignins in rubber compositions is often that the compatibility between the comparatively polar HTC lignins and the comparatively nonpolar rubbers is often too low or insufficient.
- disadvantages in relation to the aging resistance and long-term stability of the HTC lignin-containing rubber compositions can also and especially be observed in vulcanized form, since the HTC lignins contain too high a proportion of free OH groups, and undesirable reactions can take place that reduce the aging resistance and adversely affect long-term stability.
- WO 2017/085278 A1 discloses the use of particulate carbon material, in particular also of HTC lignin, as a substitute filler for carbon blacks. This is associated with the same frequently occurring disadvantages mentioned above in connection with EP 3 470 457 A1. WO 2017/085278 A1 also describes that this material, after incorporation into a rubber composition, can be subjected to in situ modification with organosilanes as coupling reagents.
- Carboxylic acid groups, carboxylate groups and mixtures thereof and/or (ii) at least some of the carbon atoms of the filler ortho to phenolic OH groups and/or phenolate groups covalently bond at least one organic modifier to the organic Filler is carried out, wherein the used at least one organic modifier contains at least one organic residue which, prior to attachment to the filler, has at least one opposite (i) the at least one functional group of the filler and/or opposite (ii) to phenolic OH groups and /or phenolate groups in ortho-position carbon atoms reactive functional group RFG, by means of which the attachment to the filler has taken place, and wherein the at least one reactive functional group RFG of the organic modifier contains no silicon atoms, preferably the organic modifier as such contains no silicon atoms, and the at least one reactive functional group RFG is preferably selected from the group consisting of acid groups and salts, anhydrides, halides and esters of these acid groups, epoxide groups, thiirane groups,
- Another subject of the present invention is a rubber composition
- a rubber composition comprising at least one rubber component, which contains at least one rubber, and a filler component, wherein the filler component contains at least one organic filler according to the invention as described in connection with the first subject of the present invention, and / or wherein the Filler component (i) contains at least one organic filler FPM with a 14 C content in a range from 0.20 to 0.45 Bq/g carbon, which has at least one functional group selected from phenolic OH groups, phenolate Groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof, wherein the organic filler FPM preferably has a BET surface area in a range from 10 to ⁇ 200 m 2 / g, and (ii) comprises at least one organic modifier which contains at least one organic radical which has at least one compared to (i) the at least one functional Group of the filler FPM and / or compared to (ii) to phenolic OFI groups and
- Another object of the present invention is a vulcanizable rubber composition
- a vulcanizable rubber composition comprising the rubber composition according to the invention and a vulcanization system, preferably comprising at least zinc oxide and/or at least sulfur and/or at least one preferably organic peroxide, particularly preferably comprising at least sulfur.
- Another object of the present invention is a vulcanized rubber composition which is obtainable by vulcanizing the vulcanizable rubber composition according to the invention or by vulcanizing a vulcanizable rubber composition obtainable by combining and mixing the two parts (A) and (B) of the kit-of-parts according to the invention.
- Another subject of the present invention is the use of at least one organic filler according to the invention for the production of rubber compositions and vulcanizable rubber compositions for use in the production of tires, preferably pneumatic tires and solid rubber tires, in particular pneumatic tires, preferably for their tread, side wall and/or inner liner , and/or to manufacture technical rubber articles, preferably to manufacture profiles, seals, dampers and/or hoses.
- the organic filler according to the invention is an environmentally friendly alternative both to known, in particular inorganic, fillers and to carbon blacks for rubber applications.
- the organic filler according to the invention makes it possible to improve the aging resistance and long-term stability of the rubber compositions, even in vulcanized form.
- the organic filler according to the invention has increased media resistance, in particular to bases, and hydrolysis resistance in particular compared to the fillers of the prior art.
- the at least one organic modifier to the filler, i.e.
- the use of the modifier used according to the invention whose reactive groups RFG are Si-free, and which is preferably Si-free as such, and in this case cannot carry any Si-containing groups as in the case of organosilanes covalent attachment to the filler leads to thermodynamically stable C-O-C bonds, or to C-O-C bonds which have a higher thermodynamic stability than corresponding Si-O-C bonds formed, for example, when using organosilanes.
- This also achieves increased resistance to flydrolysis and undesired decoupling reactions and thus lower filler-rubber interactions within the rubber composition can be avoided or at least reduced.
- the use of the modifier used according to the invention has the advantage that a high coupling efficiency is achieved, since self-condensation reactions such as when organosilanes are used may not occur.
- the vulcanized rubber compositions of the invention improved mechanical properties, especially in terms of tensile strength, Shore A hardness and
- rubber compositions according to the invention in particular vulcanizable rubber compositions which contain the organic filler according to the invention, lead to vulcanized rubber compositions which are characterized by increased moduli in the range of up to 200% of elongation. This was also found in particular when no carbon blacks are used as additional fillers.
- compositions described herein such as the rubber compositions according to the invention and the vulcanizable rubber compositions according to the invention (in each case comprising all mandatory and also all optional components) add up to a total of 100% by weight in each case.
- the organic filler according to the invention is an organic filler with a 14 C-content in a range from 0.20 to 0.45 Bq/g carbon, wherein (i) at least over part of the oxygen atoms at least one functional group of the filler, which is selected of phenolic OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof and/or (ii) at least part of the phenolic OH groups and/or phenolate groups in ortho- Position located carbon atoms of the filler is a covalent attachment of at least one organic modifier to the organic filler.
- the phrase "at least in part” means partially or fully, preferably partially.
- the phenolic OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof are preferably located on the surface of the FPM filler used for modification (so-called surface-available groups).
- surface-available OH groups can be determined qualitatively and quantitatively colorimetrically according to Sipponen. The Sipponen method is based on the adsorption of the basic dye Azure B onto the acidic hydroxyl groups accessible on the filler surface. If a corresponding adsorption takes place under the conditions that are specified in the article cited below under point 2.9 (p. 82), then surface-available groups are present within the meaning of the present invention.
- Inactive fillers dilute the rubber matrix.
- the organic filler of the present invention has a 14 C content ranging from 0.20 to 0.45 Bq/g, preferably from 0.23 to 0.42 Bq/g carbon.
- the required 14 C content specified above is met by organic fillers which are obtained from biomass by further treatment or conversion, preferably fractionation, of the same, where the fractionation can take place thermally, chemically and/or biologically, preferably thermally and chemically.
- Fillers obtained from fossil materials, such as in particular fossil fuels therefore do not fall under the definition of the filler to be used according to the present invention, since they do not have a corresponding 14 C content.
- biomass any biomass is referred to as biomass here, the term “biomass” herein so-called phytomass, i.e. biomass originating from plants, zoomass, i.e. biomass originating from animals, and microbial biomass, i.e. biomass originating from microorganisms including fungi, encompasses it the biomass is dry biomass or fresh biomass and originates from dead or living organisms.
- the most preferred biomass herein for preparing the fillers is phytomass, preferably dead phytomass. Dead phytomass includes, but is not limited to, dead, shed, or severed plants and components.
- the organic filler according to the invention preferably has a carbon content in the range from 60% by weight to 85% by weight, particularly preferably from 63% by weight to 80% by weight and very particularly preferably from 65% by weight to 75% by weight %, in particular from 68% by weight to 73% by weight, based in each case on the ashless and anhydrous filler.
- a method for determining the carbon content is given below in the Methods section. This distinguishes the organic filler from both carbon blacks made from fossil raw materials and carbon blacks made from renewable ones Raw materials are produced because carbon blacks have a corresponding carbon content of at least 95% by weight.
- the fillers according to the invention preferably have an oxygen content in the range from 15% by weight to 30% by weight, preferably 17% by weight to 28% by weight and particularly preferably 20% by weight to 25% by weight to the ashless and anhydrous filler.
- the oxygen content can be determined by means of floch temperature pyrolysis, for example using the EuroEA3000 CHNS-0 analyzer from EuroVector S.p.A.
- the organic filler according to the invention preferably has a BET surface area (specific total surface area according to Brunauer, Emmett and Teller) in a range from 10 to ⁇ 200 m 2 /g. A method for determining this parameter is described below in the Methods section.
- the organic filler according to the invention particularly preferably has a BET surface area in a range from 10 to 150 m 2 /g, very particularly preferably a BET surface area in a range from 20 to 120 m 2 /g, even more preferably a BET surface area in one range from 30 to 110 m 2 /g, in particular a BET surface area in a range from 40 to 100 m 2 /g, most preferably a BET surface area in a range from 40 to ⁇ 100 m 2 /g.
- the organic filler according to the invention preferably has an STSA surface area in a range from 10 to ⁇ 200 m 2 /g.
- a method for determining the STSA is given below in the Methods section.
- the organic filler according to the invention preferably has an STSA surface area in a range from 10 to 150 m 2 /g, particularly in a range from 20 to 120 m 2 /g, very particularly preferably in a range from 30 to 110 m 2 /g , in particular one in a range from 40 to 100 m 2 /g, most preferably in a range from 40 to ⁇ 100 m 2 /g.
- the organic filler according to the invention preferably has only limited solubility in alkaline media, in particular in 0.1 M or 0.2 M NaOH.
- the solubility is determined according to the method described below.
- the solubility of the organic filler is preferably less than 30%, particularly preferably less than 25%, very particularly preferably less than 20%, even more preferably less than 15%, even more preferably less than 10%, further preferably less than 7.5%, even more preferably less than 5% , more preferably less than 2.5%, most preferably less than 1%.
- the organic filler according to the invention is preferably a lignin-based organic filler with a lignin content of at least 50% by weight, particularly preferably at least 60% by weight, very particularly preferably at least 70% by weight, most preferably at least 80% by weight. %, each based on that
- the content of Klason lignin in the organic filler according to the invention is preferably at least 50% by weight, particularly preferably at least 60% by weight, very particularly preferably at least 70% by weight, most preferably at least 80% by weight.
- the Klason lignin content is preferably determined as acid-insoluble lignin according to TAPPI T 222.
- the lignin and preferably the organic filler according to the invention as such, if it is a lignin-based filler, at least partially in hydrothermally treated form and is particularly preferably obtainable by means of hydrothermal treatment.
- the organic filler according to the invention is particularly preferably based on lignin obtainable by means of hydrothermal treatment. Suitable methods of hydrothermal treatment, in particular of lignins and lignin-containing organic fillers, are described, for example, in WO 2017/085278 A1 and WO 2017/194346 A1 and in EP 3470457 A1.
- the hydrothermal treatment is preferably carried out at temperatures between 150° C. and 250° C. in the presence of liquid water.
- the organic filler according to the invention preferably has a pH in a range from 7 to 9, particularly preferably in a range from >7 to ⁇ 9, very particularly preferably in a range from >7.5 to ⁇ 8.5.
- the at least one organic modifier used for the covalent attachment contains an organic residue and preferably consists of this organic residue, the residue before attachment to the filler having at least one opposite (i) the at least one functional group of the filler and/or opposite (ii ) to the phenolic OH groups and / or phenolate groups located in the ortho-position carbon atoms reactive functional group RFG, by means of which the connection to the filler has taken place.
- Modifiers can also have a physical shielding effect (eg in the case of 1,2-epoxy-9-decene (ED) due to its comparatively long-chain hydrophobic residue). Is only over part of the oxygen atoms of the phenolic OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof and/or only over part of the phenolic OH groups and/or phenolate groups If the at least one organic modifying agent is covalently bonded to the carbon atoms of the filler in the ortho-position of the carbon atoms in the filler, the organic filler according to the invention can still have free phenolic OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups after bonding. groups, carboxylate groups and mixtures thereof. Preferably this is the case.
- the organic filler according to the invention has no free phenolic OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures more of that.
- the filler can still have one or more types of its functional group, for example aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof, whereas all the phenolic OH groups previously present Groups and phenolate groups have been implemented.
- the organic filler according to the invention is preferably present in a rubber-free form and/or has been produced in a rubber-free form.
- An organic filler FPM with a 14 C content in the range from 0.20 to 0.45 Bq/g carbon is suitable as the starting material or precursor for the production of the organic filler according to the invention and contains at least one functional group selected from phenolic ones OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof.
- the FPM filler used according to the invention differs from the organic filler according to the invention at least in this way.
- the organic filler FPM preferably has a BET surface area in a range from 10 to ⁇ 200 m 2 /g.
- the bringing together according to step a) and optionally also the heating according to optional step b) can be carried out in a reaction medium which is preferably liquid or gaseous.
- the modifier used and/or the FPM filler and/or the resulting mixture can optionally be present in a liquid or gaseous reaction medium.
- the liquid reaction medium can preferably contain or consist of at least one organic solvent, particularly preferably at least one hydrocarbon, very particularly preferably at least one aliphatic and/or aromatic hydrocarbon.
- the modifier can be covalently bonded to the FPM filler by CVD (chemical vapor deposition).
- reaction mixture is preferably mixed for a period of 0.01 to 30 h, particularly preferably 0.01 to 5 h, for example by stirring, in particular by one to achieve full implementation with the modifier used in the amount used
- the organic filler according to the invention preferably contains the organic filler, based on its total weight, after the covalent attachment has taken place
- the at least one organic modifier used for the covalent attachment contains an organic residue and preferably consists of this organic residue, the residue before attachment to the filler having at least one opposite (i) the at least one functional group of the filler and/or opposite (ii) to phenolic OH groups and / or phenolate groups in the ortho-position carbon atoms reactive functional group RFG, by means of which the connection to the filler takes place.
- the at least one organic modifier used preferably has at least one further functional group FGK, which is different from the at least one reactive functional group RFG, and which—if the filler according to the invention is used together with at least one rubber within a rubber composition—reacts towards it the at least one rubber and/or towards at least one functional group of this rubber and/or a vulcanization system present in the rubber composition, in particular during vulcanization, the at least one further functional group FGK preferably being selected from the group consisting of preferably not -conjugated and / or conjugated carbon-carbon double bonds, in particular vinyl groups, and sulfur-containing groups and mixtures thereof, is particularly preferably selected from the group consisting of cis-position Carbon-carbon double bonds, mercapto groups, which may be blocked, and di- and/or polysulfide groups, thioketone groups, mercaptobenzothiazole groups and dithiocarbamate groups, and mixtures thereof.
- Examples of specific preferred organic modifiers are cystine, especially L-cystine, 1,2-epoxy-9-decene, ethylene sulfide, thiobutyrolactone, flexanethiol, polymeric diphenylmethane diisocyanate, and dodecen-1yl-succinic anhydride, as well as 3-mercaptopropionic acid, linoleic acid, 3-mercaptopyridine-3 -carboxylic acid and 5-norborene-2-carboxylic acid.
- the filler component preferably contains at least one organic filler according to the invention, as described in connection with the first subject matter of the present invention.
- the rubber composition comprises the at least one organic filler of the invention in an amount ranging from 10 to 150, more preferably 15 to 130, most preferably 20 to 120, especially 40 to 100 phr and/or the at least one organic filler FPM as defined above under (i) in an amount ranging from 10 to 150, particularly preferably 15 to 130, very particularly preferably 20 to 120, in particular 40 to 100 phr, and the at least one organic modifier as defined above under (ii) in an amount ranging from 0.1 to 30% by weight, particularly preferably from 0.5 to 25% by weight, very particularly preferably from 1.0 to 15% by weight, in particular from 1.5 to 12% by weight, based in each case on the total weight of the filler FPM.
- any cleavage products formed do not contribute to the amount of modifier based on the total weight of the filler FPM.
- NR Natural rubber
- synthetic rubbers are known to those skilled in the art.
- the at least one rubber is preferably selected from the group consisting of natural rubber (NR), halobutyl rubbers, in turn preferably selected from the group consisting of chlorobutyl rubbers (CIIR; chloro-isobutene-isoprene rubber) and bromobutyl rubbers ( BIIR; bromo-isobutene-isoprene rubber), butyl rubber or isobutylene-isoprene rubber (IIR; isobutene isoprene rubber), styrene-butadiene rubber (SBR, styrene butadiene rubber), in turn preferably SSBR (solution-polymerized SBR and/or ESBR (emulsion-polymerized SBR), polybutadiene (BR, butadiene rubber), acrylonitrile-butadiene rubber
- CIIR chlorobutyl rubbers
- the rubber compositions according to the invention can also contain industrial carbon blacks, in particular furnace blacks, such as are classified as general-purpose carbon blacks under ASTM Code N660.
- magnesium oxide can have a negative effect on adhesion to neighboring tire layers and silica tends to bind organic molecules such as the thiazoles used in some vulcanization systems to its surface and thus reduce their effectiveness to inhibit.
- At least one organic filler according to the invention and optionally further fillers are then added, preferably with the exception of zinc oxide, since this is used in the rubber compositions according to the invention as a component of the vulcanization system and is therefore not considered a filler herein.
- the at least one organic filler according to the invention and optionally further fillers are preferably added incrementally.
- vulcanized cylindrical specimens each having a thickness of 12.5 mm were used.
- the vulcanization time to be set resulted from the T9o time plus 5 minutes. 5. Examination of the vulcanized test pieces and the vulcanization behavior
- the modified lignins used have good vulcanization behavior, in particular since the basicity of the lignin is increased due to the modification carried out and the vulcanization speed and extent of vulcanization is thus improved.
- the faster vulcanization kinetics can be explained in particular by the presence of end-chain double bonds (i.e. vinyl groups) on the surface, which are more reactive towards vulcanization and increase the MH value by containing the filler -Increase polymer interaction compared to other blends.
- the presence of a long alkyl chain can effectively shield the phenolic OH groups of the lignin.
- the good vulcanization behavior can be explained in particular by a pH neutralization effect, ie by an equilibrium/stabilization reaction that occurs between the acidic COOH group and the basic amino group. As soon as the cross-linking reaction begins, the sulfur from the L-cystine takes over
- modified lignins used enable improved mechanical properties in terms of tensile strength compared to unmodified lignin obtainable by hydrothermal treatment. This makes it clear that the addition of these modified lignins results in better filler Polymer interaction is achieved, in particular a better reaction between the end-chain double bond of ED-modified lignin and the disulfide group of LC-modified lignin and rubber during sulfur vulcanization. This is also consistent with the M H value.
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Abstract
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CA3220313A CA3220313A1 (en) | 2021-05-20 | 2022-05-19 | Surface-modified organic fillers and rubber compositions containing the same |
AU2022278625A AU2022278625A1 (en) | 2021-05-20 | 2022-05-19 | Surface-modified organic fillers and rubber compositions containing same |
CN202280035304.4A CN117377721A (zh) | 2021-05-20 | 2022-05-19 | 表面改性的有机填料和含有其的橡胶组合物 |
KR1020237044135A KR20240024840A (ko) | 2021-05-20 | 2022-05-19 | 표면 개질된 유기 충전제 및 이를 함유하는 고무 조성물 |
EP22730165.2A EP4341342A1 (de) | 2021-05-20 | 2022-05-19 | Oberflächenmodifizierte organische füllstoffe und diese enthaltende kautschukzusammensetzungen |
JP2023571680A JP2024518131A (ja) | 2021-05-20 | 2022-05-19 | 表面修飾有機充填剤及びそれを含有するゴム組成物 |
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EP21174916 | 2021-05-20 | ||
EP21174916.3 | 2021-05-20 |
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WO2022243486A1 true WO2022243486A1 (de) | 2022-11-24 |
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EP (1) | EP4341342A1 (de) |
JP (1) | JP2024518131A (de) |
KR (1) | KR20240024840A (de) |
CN (1) | CN117377721A (de) |
AU (1) | AU2022278625A1 (de) |
CA (1) | CA3220313A1 (de) |
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Citations (6)
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KR101392199B1 (ko) * | 2012-11-26 | 2014-05-08 | 한국타이어 주식회사 | 타이어 트레드용 고무 조성물 및 이를 이용하여 제조한 타이어 |
WO2017085278A1 (de) | 2015-11-21 | 2017-05-26 | Suncoal Industries Gmbh | Partikelförmiges kohlenstoffmaterial herstellbar aus nachwachsenden rohstoffen und verfahren zu dessen herstellung |
WO2017194346A1 (en) | 2016-05-09 | 2017-11-16 | Nokian Renkaat Oyj | A tyre comprising hydrothermally carbonized lignin |
US20180187013A1 (en) * | 2015-06-27 | 2018-07-05 | Godavari Biorefineries Ltd. | A biofiller for rubber reinforcement |
EP3470457A1 (de) | 2017-10-10 | 2019-04-17 | Continental Reifen Deutschland GmbH | Schwefelvernetzbare kautschukmischung, vulkanisat der kautschukmischung und fahrzeugreifen |
US20190284375A1 (en) * | 2016-05-09 | 2019-09-19 | Nokian Renkaat Oyj | Tyre comprising hydrothermally carbonized lignin |
-
2022
- 2022-05-19 AU AU2022278625A patent/AU2022278625A1/en active Pending
- 2022-05-19 WO PCT/EP2022/063657 patent/WO2022243486A1/de active Application Filing
- 2022-05-19 EP EP22730165.2A patent/EP4341342A1/de active Pending
- 2022-05-19 KR KR1020237044135A patent/KR20240024840A/ko unknown
- 2022-05-19 JP JP2023571680A patent/JP2024518131A/ja active Pending
- 2022-05-19 CN CN202280035304.4A patent/CN117377721A/zh active Pending
- 2022-05-19 CA CA3220313A patent/CA3220313A1/en active Pending
Patent Citations (6)
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KR101392199B1 (ko) * | 2012-11-26 | 2014-05-08 | 한국타이어 주식회사 | 타이어 트레드용 고무 조성물 및 이를 이용하여 제조한 타이어 |
US20180187013A1 (en) * | 2015-06-27 | 2018-07-05 | Godavari Biorefineries Ltd. | A biofiller for rubber reinforcement |
WO2017085278A1 (de) | 2015-11-21 | 2017-05-26 | Suncoal Industries Gmbh | Partikelförmiges kohlenstoffmaterial herstellbar aus nachwachsenden rohstoffen und verfahren zu dessen herstellung |
WO2017194346A1 (en) | 2016-05-09 | 2017-11-16 | Nokian Renkaat Oyj | A tyre comprising hydrothermally carbonized lignin |
US20190284375A1 (en) * | 2016-05-09 | 2019-09-19 | Nokian Renkaat Oyj | Tyre comprising hydrothermally carbonized lignin |
EP3470457A1 (de) | 2017-10-10 | 2019-04-17 | Continental Reifen Deutschland GmbH | Schwefelvernetzbare kautschukmischung, vulkanisat der kautschukmischung und fahrzeugreifen |
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Also Published As
Publication number | Publication date |
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EP4341342A1 (de) | 2024-03-27 |
KR20240024840A (ko) | 2024-02-26 |
AU2022278625A1 (en) | 2023-12-07 |
JP2024518131A (ja) | 2024-04-24 |
CA3220313A1 (en) | 2022-11-24 |
CN117377721A (zh) | 2024-01-09 |
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