WO2006125891A2 - Utilisation d'une combinaison de deux types d'agents de couplage differents comme systeme de couplage (charge blanche - elastomere) dans les compositions de caoutchouc comprenant une charge inorganique - Google Patents
Utilisation d'une combinaison de deux types d'agents de couplage differents comme systeme de couplage (charge blanche - elastomere) dans les compositions de caoutchouc comprenant une charge inorganique Download PDFInfo
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- WO2006125891A2 WO2006125891A2 PCT/FR2006/001120 FR2006001120W WO2006125891A2 WO 2006125891 A2 WO2006125891 A2 WO 2006125891A2 FR 2006001120 W FR2006001120 W FR 2006001120W WO 2006125891 A2 WO2006125891 A2 WO 2006125891A2
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- isoprene
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- ZNJLLWWCBTZFSB-UHFFFAOYSA-N OC(CCSSSSCCC(O)[SiH](C)C)[SiH](C)C Chemical compound OC(CCSSSSCCC(O)[SiH](C)C)[SiH](C)C ZNJLLWWCBTZFSB-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XZKRXPZXQLARHH-XVNBXDOJSA-N [(1e)-buta-1,3-dienyl]benzene Chemical compound C=C\C=C\C1=CC=CC=C1 XZKRXPZXQLARHH-XVNBXDOJSA-N 0.000 description 1
- AJUWFXDHBFMLFT-UHFFFAOYSA-N [3-[(3-dimethylsilyl-3-ethoxypropyl)disulfanyl]-1-ethoxypropyl]-dimethylsilane Chemical compound C(C)OC(CCSSCCC([SiH](C)C)OCC)[SiH](C)C AJUWFXDHBFMLFT-UHFFFAOYSA-N 0.000 description 1
- GPZLQABYHZCVJJ-UHFFFAOYSA-N [3-[3,3-bis(triethoxysilyl)propyldisulfanyl]-1-triethoxysilylpropyl]-triethoxysilane Chemical compound CCO[Si](OCC)(OCC)C([Si](OCC)(OCC)OCC)CCSSCCC([Si](OCC)(OCC)OCC)[Si](OCC)(OCC)OCC GPZLQABYHZCVJJ-UHFFFAOYSA-N 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000000304 alkynyl group Chemical group 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- VLLYOYVKQDKAHN-UHFFFAOYSA-N buta-1,3-diene;2-methylbuta-1,3-diene Chemical compound C=CC=C.CC(=C)C=C VLLYOYVKQDKAHN-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 125000000392 cycloalkenyl group Chemical group 0.000 description 1
- 125000000000 cycloalkoxy group Chemical group 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- RSIHJDGMBDPTIM-UHFFFAOYSA-N ethoxy(trimethyl)silane Chemical compound CCO[Si](C)(C)C RSIHJDGMBDPTIM-UHFFFAOYSA-N 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- VYSYZMNJHYOXGN-UHFFFAOYSA-N ethyl n-aminocarbamate Chemical compound CCOC(=O)NN VYSYZMNJHYOXGN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000717 hydrazino group Chemical group [H]N([*])N([H])[H] 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 125000005244 neohexyl group Chemical group [H]C([H])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- USPWKWBDZOARPV-UHFFFAOYSA-N pyrazolidine Chemical compound C1CNNC1 USPWKWBDZOARPV-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000004819 silanols Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical class [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 239000004711 α-olefin Substances 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F253/00—Macromolecular compounds obtained by polymerising monomers on to natural rubbers or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
-
- 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
-
- 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
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
- C08K5/5455—Silicon-containing compounds containing nitrogen containing at least one group
-
- 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
- C08K5/54—Silicon-containing compounds
- C08K5/548—Silicon-containing compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/10—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/283—Halogenated homo- or copolymers of iso-olefins
Definitions
- the field of the present invention is that of the use of a combination of two very different types of coupling agents, as a coupling system (white filler - elastomer) in rubber compositions comprising an inorganic filler as a filler. reinforcing.
- the invention also relates to elastomer compositions (s) obtained by the use of said coupling system, as well as elastomeric articles (s) having a body comprising the above compositions.
- elastomer articles (s) in which the invention is most useful are those subject in particular to the following constraints: temperature variations and / or high frequency stress variations in the dynamic regime; and / or a significant static stress; and / or significant flexural fatigue in the dynamic regime.
- Such types of articles are for example: appliance seals, supports acting as engine vibration extractors or with metal reinforcements, or with a hydraulic fluid inside the elastomer, cable sheaths, shoe soles and rollers for cable cars.
- Such a coupling agent at least bifunctional, has as simplified general formula "Y-W-X", in which:
- Y represents a functional group ("Y" function) capable of binding physically and / or chemically to the inorganic filler, such a bond being able to be established, for example, between a silicon atom of the coupling agent and the hydroxyl groups (OH) surface of the inorganic filler (for example silanols surface when it is silica);
- X represents a functional group ("X" function) capable of binding physically and / or chemically to the elastomer, for example via a suitable atom or group of atoms;
- W represents a divalent group for connecting "Y” and "X".
- the coupling agents must not be confused with simple inorganic filler agents which, in a known manner, may comprise the active "Y” function with respect to the inorganic filler but are in any case without the function "X" active vis-à-vis the elastomer.
- Coupling agents in particular (silica-elastomer), have been described in a large number of patent documents, the best known of which are bifunctional sulphide silanes, in particular sulphurized alkoxysilanes, which are nowadays regarded as the products providing, for vulcanizates loaded with silica, the best compromise in terms of safety when roasting, ease of implementation and strengthening power.
- TESPT bis (3-triethoxysilylpropyl) tetrasulfide
- the Applicant has discovered a novel coupling system for inorganic filler which, by virtue of the combination of two very different types of coupling agents, makes it possible to very significantly improve the coupling performance on an isoprene elastomer.
- Such a system allows in particular to significantly improve the hysteresis properties of the rubber compositions, which materialize for the elastomeric articles (such as for example those mentioned above) by a decrease in internal heating of these articles during their use, in use or by increasing the transmissibility factor in the case of antivibration parts in the motor mounts.
- vulcanizing agent (s) D1
- vulcanization accelerator s
- D3 optionally one (or vulcanization activator (s)
- D4 optionally one (or) non-white reinforcing filler (s)
- D5 optionally one or more protective agent (s)
- D6 optionally a plasticizing agent (s) and / or agent (s) (s) implementation aid (D7), and mixtures of these species; -> said use being characterized in that:
- the polyfunctional coupling system (A) consists of a particular combination residing in the combination of the following ingredients (A1) and (A2):
- n, o, p each represents an integer or fractional number equal to or greater than O;
- - a ' represents an integer selected from O, 1 and 2;
- G 2 which are identical or different, each represent: a hydroxyl group or a hydrolysable monovalent group
- G 1 which may be identical or different, each represent: a saturated or unsaturated aliphatic hydrocarbon group; a carbocyclic group, saturated or unsaturated and / or aromatic, monocyclic or polycyclic; or a group representing a saturated or unsaturated aliphatic hydrocarbon portion and a carbocyclic moiety as defined above; with the additional possibility that, where appropriate, a group G 1 may form with a group G 2 and the silicon atom to which G 1 and G 2 are bonded, a monocyclic or polycyclic carbocyclic group having from 2 to 10 carbon atoms. cyclic carbon and which may comprise one or more oxygenated cyclic heteroatom (s);
- Z represents a divalent radical chosen from: a saturated or unsaturated aliphatic hydrocarbon group; a carbocyclic group, saturated, unsaturated and / or aromatic, monocyclic or polycyclic; and a group having a saturated or unsaturated aliphatic hydrocarbon portion and a carbocyclic moiety as defined above; said divalent radical being optionally substituted or interrupted by an oxygen atom and / or a sulfur atom and / or a nitrogen atom, said nitrogen atom bearing 1 monovalent group chosen from: a hydrogen atom; a saturated or unsaturated aliphatic hydrocarbon atom; a carbocyclic group, saturated or unsaturated and / or aromatic, monocyclic or polycyclic; and a group having a saturated or unsaturated aliphatic hydrocarbon portion and a carbocyclic moiety as defined above;
- n an integer equal to 1 or 2;
- x represents an integer or fractional number ranging from 2 to 6; the symbols M take any of the meanings given above for Z;
- z represents an integer or fractional number ranging from 1 to 4.
- R 1 being a saturated or unsaturated aliphatic hydrocarbon group, or a saturated, unsaturated and / or aromatic, monocyclic or polycyclic carbocyclic group, or a group having a saturated or unsaturated aliphatic hydrocarbon portion and a carbocyclic portion such as defined above;
- R 2 and R 3 which may be identical or different, being a hydrogen atom and / or any of the groups represented by R 1 ;
- R 2 and R 3 may additionally form, together with the nitrogen atom to which they are bonded, a single 5- to 7-membered ring, having in the ring 3 to 6 carbon atoms, 1 or 2 atoms (s); ) nitrogen and optionally 1 or 2 double bond (s); the Bz
- said polyfunctional coupling system (A) is incorporated into rubber compositions based on isoprenic elastomers.
- those which are advantageously aimed at in the present invention are species (2i) corresponding to the definitions given above, in formula (I) of which the sum m + n + o + p + q (corresponding to the number of silicon atoms of the oligomer) is in the range from 2 to 20, preferably from 2 to 12 and for example from 2 to 6.
- the "X" function of the coupling agent is the polysulfide function S x
- the "Y” function is the hydroxyl / hydrolyzable function -Si-G 6
- the "X" function of the coupling agent is the polysulfide function S 2
- the "Y” function is the hydroxyl / hydrolyzable function -Si-G 6 .
- aliphatic hydrocarbon group means a linear or branched group, preferably comprising from 1 to 25 carbon atoms, which may be substituted.
- said aliphatic hydrocarbon group comprises from 1 to 18 carbon atoms, better still from 1 to 8 carbon atoms and better still from 1 to 6 carbon atoms.
- alkyl groups such as the methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, t-butyl, pentyl, isopentyl, neopentyl, 2-methylbutyl and 1-ethylpropyl radicals.
- hexyl isohexyl, neohexyl, 1-methylpentyl, 3-methylpentyl, 1,1-dimethylbutyl, 1,3-dimethylbutyl, 2-ethylbutyl, 1-methyl-1-ethylpropyl, heptyl, 1-methylhexyl, 1-propylbutyl, 4 , 4-dimethylpentyl, octyl, 1-methylheptyl, 2-ethylhexyl, 5,5-dimethylhexyl, nonyl, decyl, 1-methylnonyl, 3,7-dimethyloctyl and 7,7-dimethyloctyl, hexadecyl.
- the unsaturated aliphatic hydrocarbon groups comprise one or more unsaturations, preferably one, two or three unsaturations of the ethylenic (double bond) or / and acetylenic (triple bond) type.
- Examples are alkenyl or alkynyl groups derived from the alkyl groups defined above by removal of two or more hydrogen atoms.
- the unsaturated aliphatic hydrocarbon groups comprise a single unsaturation.
- carbocyclic group is understood to mean a monocyclic or polycyclic radical, optionally substituted, preferably C 3 -C 50 .
- it is a C 3 -C 18 radical, preferably mono-, bi- or tricyclic.
- the carbocyclic group comprises more than one ring nucleus (case of polycyclic carbocycles)
- the cyclic rings are condensed in pairs. Two fused rings may be ortho-condensed or pericondensed.
- the carbocyclic group may comprise, unless otherwise indicated, a saturated portion and / or an aromatic moiety and / or an unsaturated moiety.
- saturated carbocyclic groups are cycloalkyl groups.
- the cycloalkyl groups are C 3 -C 18 , more preferably C 5 -C 10 .
- Mention may in particular be made of cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantyl or norbornyl radicals.
- the unsaturated carbocycle or any unsaturated carbocyclic moiety has one or more ethylenic unsaturations, preferably one, two or three. It advantageously has from 6 to 50 carbon atoms, more preferably from 6 to 20, for example from 6 to 18.
- unsaturated carbocycles are cycloalkenyl groups in which
- aromatic carbocyclic radicals are (C 6 -C 18 ) aryl groups, more preferably (C 6 -C 12 ) aryl groups, and especially phenyl, naphthyl, anthryl and phenanthryl.
- a group having both a hydrocarbon aliphatic moiety as defined above and a carbocyclic moiety as defined above is, for example, an arylalkyl group such as benzyl, or an alkylaryl group such as tolyl.
- the substituents of the hydrocarbon aliphatic groups or moieties and carbocyclic groups or moieties are, for example, alkoxy groups in which the alkyl moiety is preferably as defined above.
- such a hydrolyzable monovalent group is a radical: alkoxy, linear or branched, C 1 -C 8 optionally halogenated and / or optionally substituted with one or more (C 1 -C 5) alkyloxy, optionally substituted C 2 -C 9 acyloxy or optionally substituted with one or more (C 1 -C 8 ) C 1 -C 8 alkyl, C 5 -C 10 cycloalkyloxy or C 6 -C 18 aryloxy
- the hydrolyzable group is methoxy, ethoxy, n propoxy, isopropoxy, n-butoxy, methoxymethoxy, ethoxyethoxy, methoxyethoxy, ⁇ -chloropropoxy or ⁇ -chloroethoxy or else acetoxy.
- G 1 which may be identical or different, each represent: a linear or branched C 1 -C 8 alkyl radical; a C 5 -C 10 cycloalkyl radical or an aryl radical
- Z ' represents: a C 1 -C 8 alkylene chain; a saturated C 5 -C 10 cycloalkylene group; a C 6 -C 18 arylene group; or a divalent group consisting of a combination of at least two of these radicals;
- A denotes a group -OG 3 or -NG 4 G 3 where G 3 and G 4 , which are identical to or different from each other, each represent: a linear or branched C 1 -C 8 alkyl radical or a C 5 cycloalkyl radical; 5 -C 10 or a C 6 -C 18 aryl radical.
- SA1-2 compounds those which are more particularly suitable (so-called SA1-2 compounds) are the compounds:
- G 0 which are identical or different, each represent one of the radicals chosen hereafter for G 1 or G 2 ;
- G 1 which are identical or different, are selected from the group consisting of methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl;
- G 2 which are identical or different, are chosen from the group formed by hydroxyl, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, methoxymethoxy, ethoxyethoxy and methoxyethoxy radicals;
- Z represents the divalent radical -Z'-Z "- where: Z 'represents: a C 1 -C 8 alkylene chain;
- Z represents: a valence bond, -O- or -NR 4 -, with R 4 being chosen from the group formed by: hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl radicals, butyl, pentyl, hexyl, cyclohexyl, and benzyl;
- A denotes a group -OG 3 or -NG 4 G 3 in which G 3 and G 4, which are identical or different, are selected from the group consisting of methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl.
- G 3 and G 4 which are identical or different, are selected from the group consisting of methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl.
- SA1-3 the compounds:> consisting of:
- G 0 which are identical or different, each represent one of the radicals chosen hereafter for G 1 or G 2 ;
- the symbols G 1 which may be identical or different, are chosen from the group formed by the methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl radicals;
- the symbols G 2 which are identical or different, are chosen from the group formed by the hydroxyl, methoxy, ethoxy, n-propoxy, isopropoxy and n-butoxy radicals;
- Z represents the divalent radical -Z '-Z "- where:
- Z ' is selected from the group consisting of divalent methylene, ethylene and propylene radicals; - Z "represents: a valence bond, -O- or -NR 4 - with R 4 being a hydrogen atom;
- A denotes a group -OG 3 where G 3 is selected from the group consisting of methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl.
- silanes SA2-1 those which are suitable (so-called silanes SA2-1) are the "symmetrical" silanes of formula (II) in which:
- B represents an integer selected from 1, 2 and 3;
- G 5 which are identical or different, each represents: an alkyl radical, linear or branched C 1 -C 8 alkyl; a C 5 -C 10 cycloalkyl radical or an aryl radical
- the symbols G 6 which may be identical or different, each represent: a hydroxyl radical, a linear or branched C 1 -C 8 alkoxy radical optionally substituted by one or more (C 1 -C 8) alkyl radicals; alkylene chain Ci-C 8; cycloalkylene saturated C 5 - C 10, an arylene C 6 -C 18; or a divalent group consisting of a combination of at least two of these radicals; »m is equal to 1;
- X represents an integer or fractional number ranging from 2 to 4.
- silanes SA2-2 those which are more particularly suitable (so-called silanes SA2-2) are the silanes of formula (II) in which:
- B represents an integer selected from 1, 2 and 3;
- the symbols G 5 which are identical or different, are chosen from the group formed by the methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl radicals;
- the symbols G 6 which are identical or different, are chosen from the group formed by hydroxyl, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, methoxymethoxy, ethoxyethoxy and methoxyethoxy radicals;
- M represents a C 1 -C 8 alkylene chain
- M is 1; • x represents an integer or fractional number ranging from 2 to 4.
- B represents an integer selected from 1, 2 and 3;
- G 5 which are identical or different, are chosen from the group formed by the methyl, ethyl, propyl, isopropyl, cyclohexyl and phenyl radicals;
- G 6 which are identical or different, are chosen from the group formed by the hydroxyl, methoxy, ethoxy, n-propoxy and isopropoxy radicals;
- M is selected from the group consisting of divalent methylene, ethylene and propylene radicals; M is 1;
- x represents an integer or fractional number ranging from 2 to 4.
- TESPD bis-triethoxysilylpropyl disulfide
- step (b) occurs easily by operating with the aid of an oxidizing system based for example on N-bromosuccinimide and pyridine, used in stoichiometric amounts or in excess with respect to the latter.
- Functionalized organosilicon compounds (A1) of type (2i) and (3i) may be prepared according to a synthesis process consisting in: oxidizing the hydrazo group of the precursor (IV) using an oxidizing system comprising at least one oxidant (for example a halogen such as bromine) and at least one base (for example a mineral base such as Na 2 CO 3 ),
- an oxidizing system comprising at least one oxidant (for example a halogen such as bromine) and at least one base (for example a mineral base such as Na 2 CO 3 ),
- An advantageous procedure for carrying out this process consists in: charging the reactor (IV), the base (its quantity depending on the oxidizing agent used, for example, at room temperature (for example 23 ° C.); in the case of bromine, use is made of two molar equivalents of base with respect to bromine), the organic solvent and the additional reagent (its quantity corresponding, for example, to at least one molar equivalent relative to the precursor), and then to be added progressively in the the reaction medium the oxidizing system (its molar amount being for example stoichiometric relative to that of the precursor).
- the polysulfide organosilanes (A2) may be prepared according to various known synthetic methods found in many documents; examples include the following documents:
- TESPD organosilanes
- Si75 in the form of a mixture of disulphide - at 75% by weight - and polysulfides
- Silquest A1589 Silquest A1589
- TESPT is marketed for example by the company Degussa under the name Si69 (or X50S when it is supported at 50% by weight on carbon black), or by the company GE-OSI under the name Siquest A1289 (in the two cases, commercial polysulfide mixture with a mean value for x of Sx in formula (II) close to 4).
- compositions comprising:
- compositions comprise (parts being by weight):
- inorganic filler (C) preferably from 30 to 150 parts and more preferably from 40 to 120 parts,
- ingredient (A2) 0.5 to 15 parts, and preferably 1 to 10 parts, of ingredient (A2).
- the amount of combination (A1) + (A2), where the proportions of ingredients (A1) and (A2) are chosen in the aforementioned general and preferential zones, is determined so that it represents 1 at 20%, preferably from 2 to 15%, more preferably from 3 to 10%, relative to the weight of the reinforcing inorganic filler.
- the proportions of the ingredients (A1) and (A2), on the one hand chosen in the aforementioned general and preferential zones and on the other hand giving a sum (A1) + (A2) advantageously located in the general zones and preferential abovementioned, are further determined so that the weight ratio ingredient (A1) / ingredient (A2) is in the range of 0.1 to 10, preferably from 0.15 to 5 and more preferably from 0.3 to 3.
- Isoprenic elastomers which are used for the compositions according to the second subject of the invention more specifically mean:
- conjugated diene monomers other than isoprene, having from 4 to 22 carbon atoms, for example 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, chlorobenzene, 2-butadiene-1,3 (or chloroprene), 1-phenyl-1,3-butadiene, 1,3-pentadiene, 2,4-hexadiene;
- vinyl aromatic monomers having 8 to 20 carbon atoms, for example: styrene, ortho-, meta- or para-methylstyrene, the commercial "vinyl-toluene" mixture, paratertiobutylstyrene, methoxystyrenes, chlorostyrenes, vinylmesitylene, divinylbenzene, vinylnaphthalene;
- acrylic ester monomers derived from acrylic acid or methacrylic acid with alkanols having from 1 to 12 carbon atoms such as, for example, methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, isobutyl acrylate, 2-ethylhexyl acrylate, methacrylate methyl, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate;
- copolymeric polyisoprenes containing between 99% and 20% by weight of isoprenic units and between 1% and 80% by weight of diene units, aromatic vinyls, vinyl nitriles and / or acrylic esters, and consisting, for example, in polyisoprene; -butadiene), poly (isoprene-styrene) and poly (isoprene-butadiene-styrene);
- (6) a mixture containing a major amount (ranging from 51% to 99.5% and preferably from 70% to 99% by weight) of the aforementioned elastomer (1) or (3) and a minor amount (ranging from from 49% to 0.5% and preferably from 30% to 1% by weight) of one or more diene elastomers other than isoprenic.
- diene elastomer other than isoprene is meant in a manner known per se: homopolymers obtained by polymerization of one of the conjugated diene monomers defined above in (2.1), such as for example polybutadiene and polychloroprene; copolymers obtained by copolymerization of at least two of the abovementioned conjugated dienes (2.1) with one another or by copolymerization of one or more of the abovementioned conjugated dienes (2.1) with one or more unsaturated monomers mentioned above (2.2), (2.3) and / or or (2.4), such as poly (butadiene-styrene) and poly (butadiene-acrylonitrile); ternary copolymers obtained by copolymerization of ethylene, an ⁇ -olefin having from 3 to 6 carbon atoms with a non-conjugated diene monomer having from 6 to 12 carbon atoms, for example elastomers obtained from ethylene propylene with
- isoprenous elastomers chosen from: (1) homopolymeric synthetic polyisoprenes; (2) the synthetic polyisoprenes copolymers consisting of poly (isoprene-butadiene), poly (isoprene-styrene) and poly (isoprene-butadiene-styrene); (3) natural rubber; (4) butyl rubber; (5) a mixture of the aforementioned elastomers (1) to (4) between them; (6) a mixture containing a majority of the aforementioned elastomer (1) or (3) and a a minor amount of non-isoprene diene elastomer consisting of polybutadiene, polychloroprene, poly (butadiene-styrene), poly (butadiene-acrylonitrile), and a terpolymer (ethylene-propylene-diene conjugated monomer).
- isoprenous elastomers chosen from: (1) homopolymeric synthetic polyisoprenes
- isoprenous elastomers chosen from: (1) homopolymeric synthetic polyisoprenes; (3) natural rubber; (5) a mixture of the aforementioned elastomers (1) and (3); (6) a mixture containing a major amount of the aforementioned elastomer (1) or (3) and a minor amount of non-isoprene diene elastomer other than polybutadiene and polybutadiene-styrene.
- the term "reinforcing inorganic filler” in known manner, an inorganic or mineral filler, regardless of its color and its origin (natural or synthetic), also called “white” charge or sometimes “clear” charge "as opposed to carbon black.
- the term "reinforcing inorganic filler” still includes in its definition mixed fillers based on "white” filler and carbon black. This inorganic filler must be capable of reinforcing on its own, with no other means than an intermediate coupling agent, a technical rubber composition, in other words capable of replacing, in its reinforcing function, a conventional load based only of carbon black.
- the physical state under which the reinforcing inorganic filler is present is indifferent, that is to say that said filler may be in the form of powder, granules or beads (microbeads).
- the reinforcing inorganic filler or compound (C) consists of silica, alumina, carbon black totally or partially coated with silica and / or alumina or a mixture of these species. More preferably, the reinforcing inorganic filler consists of silica, taken alone or mixed with alumina.
- silica capable of being used in the invention are suitable all the precipitated silicas and fumed silicas (fumed silicas) known to those skilled in the art, preferably having a BET specific surface area of less than or equal to at 450 m 2 / g. Precipitated silicas are preferred, which can be conventional or highly dispersible.
- highly dispersible silica means any silica having an ability to deagglomerate and to disperse in a very large polymeric matrix that can be observed by electron or optical microscopy, on thin sections.
- highly dispersible precipitated silicas that may be used include those having a CTAB specific surface area of less than or equal to 450 m 2 / g, preferably of between 30 and 400 m 2 / g, and in particular those described in US Pat. 5403570 and requests WO-A-95/09127 and WO-A-95/09128, the contents of which are incorporated herein.
- Such preferentially dispersible precipitated silicas mention may be made of the Zeosil 1165 MP and 1115 MP silicas from Rhodia 1, the BV3380 and Ultrasil 7000 silicas from Degussa, the Hi-SiI 2000 and Hi-SiI EZ silicas. 150G of the PPG company, the silicas Zeopol 8715, 8741, 8745 or 8755 of the company HUBER.
- Treated precipitated silicas such as for example the "aluminum doped" silicas described in patent application EP-A-0735088, the content of which is also incorporated herein, are also suitable.
- the precipitation silicas having a CTAB surface area of 60 to 250 m 2 / g, preferably 80 to 230 m 2 / g, a BET specific surface area of 60 to 260 m 2 / are suitable. g, preferably from 80 to 240 m 2 / g, a BET specific ratio / CTAB specific surface area of from 1.0 to 1.6.
- silica also means blends of different silicas.
- the CTAB specific surface area is determined according to the NFT method 45007 of November 1987.
- the BET specific surface area is determined according to the BRUNAUER method,
- a highly dispersible alumina having: a BET specific surface area of 30 to 400 m 2 / g, preferably 60 to 250 m 2 / g, an average particle size of at most 500 nm, preferably at most 200 nm, and a high level of reactive surface functions Al-OH, for example as described in EP-A-0810258.
- alumina A125, CRI 25 and D65CR from BAIKOWSK1.
- compositions according to the invention also contain an ingredient (D) comprising all or part of the other constituents and auxiliary additives usually used in the field of elastomer (s) and rubber (s) compositions.
- - (D1) obligatory, vulcanizing agents selected from sulfur or sulfur-donor compounds, such as, for example, thiuram derivatives; as for example sulfur, it is used in a known manner at a level ranging from 0.5 to 10 and preferably from 0.5 to 5 parts by weight per 100 parts by weight of isoprene elastomer (s) (s). );
- vulcanization accelerators such as, for example, guanidine derivatives and sulfenamide derivatives; such an activator, when one is used, is employed in a known manner at a level of from 0.5 to 10 and preferably from 0.5 to 5 parts by weight per 100 parts by weight of elastomer (s);
- (D3) optionally, vulcanization activators, such as, for example, zinc oxide, stearic acid and zinc stearate;
- a conventional reinforcing filler consisting of carbon black
- carbon blacks are suitable for all carbon blacks, especially blacks of the HAF, ISAF, SAF type; by way of nonlimiting examples of such carbon blacks, mention may be made of carbon blacks N115, N134, N234, N339, N347, N375; the quantity of carbon black is determined so that on the one hand the reinforcing inorganic filler used represents more than 50% of the weight of the inorganic filler + carbon black, and on the other hand the quantity of total reinforcing filler (inorganic filler + carbon black) remains in the ranges of values indicated above, for the reinforcing inorganic filler, about the weight constitution of the compositions;
- D5 optionally, a conventional white filler with little or no reinforcing such as clays, bentonite, talc, chalk, kaolin, titanium dioxide or a mixture of these species;
- compositions in accordance with the invention may contain reinforcing filler recovery agents, comprising for example the only "Y" function, capable, in a known manner by improving the dispersion of the filler in the rubber matrix and lowering the viscosity of the compositions, improving the processability of the compositions in the green state.
- Such agents consist, for example, in hydroxylated or hydrolysable silanes (in particular alkyltriethoxysilanes), polyalkylene glycols (for example polyethylene glycols), alkanolamines (for example trialkanol amines), and ⁇ , ⁇ -dihydroxy polyorganosiloxanes.
- hydroxylated or hydrolysable silanes in particular alkyltriethoxysilanes
- polyalkylene glycols for example polyethylene glycols
- alkanolamines for example trialkanol amines
- ⁇ , ⁇ -dihydroxy polyorganosiloxanes ⁇ , ⁇ -dihydroxy polyorganosiloxanes.
- Such an assisting agent when one is used, is employed at 1 to 10 parts by weight, and preferably 2 to 8 parts, per 100 parts of reinforcing inorganic filler.
- a third object of the present invention relates to the process for preparing the elastomer compositions comprising a reinforcing inorganic filler and an effective amount of the coupling system.
- This process can be carried out according to a conventional procedure in two phases 1 and 2 in which: phase 1 (so-called non-productive "hot” stage): is introduced and kneaded in a usual internal mixer, in one or two steps or more than two steps, all the necessary ingredients, with the sole exception of the vulcanizing agent (s) (D1); by way of illustration, it is possible to introduce and mix all the ingredients defined below: elastomer (s) (B), inorganic filler (C), all or part of the coupling agent (A2), possibly all or part of of the coupling agent (A1), optionally at least one covering agent (D7), optionally a vulcanization accelerator (s) (D2), optionally a vulcanization activator (s) (s) ( D3), optionally a protective agent (s) (
- Phase 2 (so-called "cold” productive phase): then the mixture thus obtained is taken up on an external mixer and then the vulcanization agent (s) and optionally one or more other ingredient (s) are added thereto; (s); for illustrative purposes, the following ingredients are thus added: optionally the coupling agent residue (A2), optionally all or the coupling agent residue (A1), or one or more vulcanizing agents (s) ( D1), optionally a vulcanization accelerator (s) (D2), optionally a vulcanization activator (s) (D3), optionally a protective agent (s) (s) ( D6); the operation is carried out at a lower temperature, below 120 ° C., and preferably from 25 ° to 100 ° C.
- the process for preparing the elastomer compositions (s) is carried out according to the conventional procedure in two phases 1 and 2 in which:
- the coupling agent (A2) is introduced completely during phase 1 at the same time as the reinforcing inorganic filler,
- phase - is fractionated between the two phases 1 and 2, the first fraction incorporated in phase 1 corresponding to a proportion of 10 to 80% by weight, the second fraction incorporated in phase 2 corresponding to a proportion of 20 to 90% by weight.
- the process for preparing the elastomer compositions is carried out as indicated above with respect to the preferential mode, but this time by fractionating the coupling agent (A1) on the two phases 1 and 2.
- the vulcanization (or cooking) is conducted in a known manner at a temperature generally ranging from 130 to 200 ° C., for a sufficient time which may vary, for example, between 5 and 90 minutes, depending in particular on the cooking temperature, the vulcanization system adopted and the kinetics of vulcanization of the composition under consideration.
- the present invention taken in its second subject, relates to the elastomer compositions (s) previously described both in the raw state (that is to say before cooking) and the cooked state (ie after crosslinking or vulcanization).
- a fourth object of the present invention relates to isoprene elastomeric articles having a body comprising the compositions described above in the context of the second subject of the invention.
- the present invention is particularly useful for preparing articles consisting for example of engine mounts, shoe soles, ropeway rollers, appliance gaskets and cable sheaths.
- This example illustrates the preparation of a coupling agent of type (A1-1).
- the ethyl carbazate and anhydrous toluene are charged at ambient temperature (23 ° C.) into the reactor which is placed under an argon atmosphere.
- the reactor is stirred at 300 rpm and the reaction mixture is then heated to 60 ° C.
- the reaction mixture becomes substantially homogeneous hot.
- reaction mixture is stirred for 2 hours at 60 ° C. before returning to ambient temperature.
- reaction mixture is left standing for a few hours at room temperature.
- Ingredient (A1-1) is obtained in one step from the oxidation precursor of the azo-functional hydrazino function using an N-Bromosuccinimide (NBS) and pyridine-based oxidizing system added in stoichiometric amounts relative to the precursor .
- NBS N-Bromosuccinimide
- pyridine-based oxidizing system added in stoichiometric amounts relative to the precursor .
- the precursor, pyridine and dichloromethane are charged to a reactor which is placed under an argon atmosphere; the reaction medium is substantially colorless homogeneous.
- N-Bromosuccinimide is added in 30 minutes to the spatula. The temperature is kept below 25 ° C. From the first addition of NBS, the environment reacts! becomes bright orange.
- the reaction medium is stirred at room temperature for 2 hours after the end of the addition of NBS.
- the reaction medium is concentrated under reduced pressure on a rotary evaporator.
- the residue which is in the form of an orange paste, is taken up in 100 ml of a heptane / iPr 2 O mixture (1/1: vol / vol) and then filtered on sintered glass (125 ml) of porosity 4 The filter cake is washed with an additional 4 x 25 ml of the above solvent mixture.
- the mother liquors are filtered a second time on the cake.
- the filtrate is concentrated under reduced pressure.
- An ingredient (A1) consisting essentially of the organosilane of formula:
- an ingredient (A2) consisting essentially of the organosilane of formula: (C 2 H 5 O) 3 Si- (CH 2 ) 3 -S 4 - (CH 2 ) 3 -Si (OC 2 H 5 ) 3 (A2-2)
- composition No. 1 (control 1): absence of coupling agent
- composition No. 2 (control 2): coupling agent introduced wholly into the internal mixer, providing in the composition 4 phr of silane (A2-2);
- composition No. 3 (control 3): coupling agent, fractionated between internal mixer (3.8 phr) and external mixer (1.5 phr), giving the composition 5.3 phr of silane (A1-1);
- Composition No. 4 Example 2: combination of coupling agents bringing into the composition 4.9 phr of silanes (A2-2) and (A1-1); the silane (A2-2) is introduced completely (1.9 phr) in internal mixer, while the silane (A2-2) is fractionated between internal mixer (1.5 phr) and external mixer (1.5 phr) .
- N-cyclohexyl-2-benzothiazyl sulfenamide (Rhenogran CBS-80 from Bayer).
- Tetrabenzylthiuram Disulfide (Perkacit TBzTD from Flexsys).
- a first phase consists in a thermomechanical work phase at high temperature. It is followed by a second phase of mechanical work at temperatures below 110 ° C. This phase allows the introduction of the vulcanization system.
- the first phase is carried out using a BRABENDER brand internal mixer type mixer (70 ml capacity).
- the fill factor is 0.75.
- the initial temperature and the speed of the rotors are set each time so as to reach mixing temperatures close to
- the duration is between 5 and 10 minutes.
- the second phase allows the introduction of the vulcanization system (sulfur and accelerators) and optionally the remainder of (or more) agent (s), and optionally coupling a conventional reinforcing filler (carbon black). It is carried out on a roll mill, preheated to 50 ° C. The duration of this phase is between 2 and 6 minutes.
- the introduction of the said coupling agent (s) onto the roll mixer is preferably carried out after a support (beforehand) with the carbon black.
- the final composition is then calendered in the form of plates 2-3 mm thick.
- Table II gives the results concerning the rheology test which is carried out at 150 ° C. using an ODR MONSANTO 100 S rheometer according to DIN 53529.
- the composition to be tested is placed in the controlled test chamber at a temperature of 150 ° C. for 30 minutes, and the resistive torque opposed by the composition is measured at a low amplitude oscillation (3 °).
- a biconical rotor included in the test chamber the composition completely filling the chamber in question. From the curve of variation of the torque as a function of time, we determine:
- the measurements are performed on the optimally vulcanized compositions (T98) for a temperature of 150 ° C.
- the uniaxial tensile tests are carried out in accordance with the NF T 46-002 standard with H2 specimens at a speed of 500 mm / min on an INSTRON 5564.
- the modules 10%, 100%, 300%, and resistance to rupture are expressed in MPa; the elongation at break is expressed in%. It is possible to determine a reinforcement index from the ratio between the 300% modules and the 100% deformation module.
- the Shore A hardness measurement of the vulcanizates is carried out according to the indications of ASTM D 2240. The value given is measured at 15 seconds.
- the measurement of loss of mass by abrasion is carried out according to the indications of the DIN 53516 standard which uses a Zwick abrasimeter where the cylindrical specimen is subjected to the action of an abrasive cloth of grains P60 and fixed on the surface of a drum rotating under a contact pressure of 10N and a stroke of 40 meters.
- the measured value is a volume of loss of substance (in mm 3 ) after wear by abrasion; the lower it is, the better the resistance to abrasion.
- the mechanical properties are measured on a viscoanalyzer (Metravib VA3000) according to ASTM D5992.
- the values of the loss factor (tan ⁇ ) and elastic modulus amplitude in dynamic shear ( ⁇ G 1 ) are recorded on vulcanized samples (parallelepipedal specimen of section 8 mm 2 and height 7 mm). The sample is subjected to a sinusoidal deformation in alternating double shear at a temperature of 40 ° C. and at a frequency of 10 Hz. The amplitude deformation scanning processes are carried out in a round-trip cycle, ranging from 0.1% to 50%. % then return from 50% to 0.1%.
- Table IV The results presented in Table IV are derived from the amplitude sweep of the return strains and relate to the maximum value of the loss factor (tan ⁇ max return - 40 0 C - 10 Hz) as well as the amplitude of the elastic modulus ( ⁇ G - 40 ° C - 10 Hz) between the values at 0.1% and 50% deformation (Payne effect).
- composition according to the invention makes it possible to improve the reinforcement compromise with large deformations / ultimate tensile properties / hysteretic properties compared with what is obtained with the compositions witnesses (witnesses 1 to 3).
- the composition of the invention reveals in particular a very substantially improved hysteresis as shown in Table IV by the value of the loss factor (tang ⁇ ) at 60 ° C. which is substantially reduced.
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Abstract
Description
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Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602006005649T DE602006005649D1 (de) | 2005-05-26 | 2006-05-18 | Verwendung einer kombination von zwei unterschiedlichen arten von haftvermittlern als haftvermittlungssystem (weisser füllstoff-elastomer) in anorganischen füllstoff enthaltenden kautschukzusammensetzungen |
US11/920,994 US8664311B2 (en) | 2005-05-26 | 2006-05-18 | Rubber compositions comprising two different coupling agents and also inorganic fillers |
JP2008512864A JP5014333B2 (ja) | 2005-05-26 | 2006-05-18 | 無機充填剤を含むゴム組成物における、カップリング系(白色充填剤/エラストマー)としての異なる2タイプのカップリング剤配合物の使用 |
CN2006800248852A CN101218290B (zh) | 2005-05-26 | 2006-05-18 | 两种类型的不同偶联剂的组合在包含无机填料的橡胶组合物中作为偶联体系(白色填料-弹性体)的用途 |
CA2609313A CA2609313C (fr) | 2005-05-26 | 2006-05-18 | Utilisation d'une combinaison de deux types d'agents de couplage differents comme systeme de couplage (charge blanche - elastomere) dans les compositions de caoutchouc comprenant une charge inorganique |
EP06755498A EP1885786B1 (fr) | 2005-05-26 | 2006-05-18 | Utilisation d'une combinaison de deux types d'agents de couplage differents comme systeme de couplage (charge blanche - elastomere) dans les compositions de caoutchouc comprenant une charge inorganique |
BRPI0609894-0A BRPI0609894A2 (pt) | 2005-05-26 | 2006-05-18 | utilização de uma quantidade eficaz de um sistema polifuncional de copulação, composições de elastÈmero(s), processo de preparação de composições de elastÈmero (s) isoprênico(s) e artigos de elastÈmero(s) |
PL06755498T PL1885786T3 (pl) | 2005-05-26 | 2006-05-18 | Zastosowanie kombinacji dwóch różnych typów środków sprzęgających jako układu sprzęgającego (biały wypełniacz-enancjomer) w kompozycjach kauczukowych zawierających nieorganiczny wypełniacz |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0505286A FR2886302B1 (fr) | 2005-05-26 | 2005-05-26 | Utilisation d'une combinaison de deux types d'agents de couplage bien differents, comme systeme de couplage (charge blanche-elastomere) dans les compositions de caoutchouc comprenant une charge inorganique |
FR0505286 | 2005-05-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006125891A2 true WO2006125891A2 (fr) | 2006-11-30 |
WO2006125891A3 WO2006125891A3 (fr) | 2007-01-18 |
Family
ID=34955326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2006/001120 WO2006125891A2 (fr) | 2005-05-26 | 2006-05-18 | Utilisation d'une combinaison de deux types d'agents de couplage differents comme systeme de couplage (charge blanche - elastomere) dans les compositions de caoutchouc comprenant une charge inorganique |
Country Status (13)
Country | Link |
---|---|
US (1) | US8664311B2 (fr) |
EP (1) | EP1885786B1 (fr) |
JP (1) | JP5014333B2 (fr) |
KR (1) | KR100882763B1 (fr) |
CN (1) | CN101218290B (fr) |
AT (1) | ATE425214T1 (fr) |
BR (1) | BRPI0609894A2 (fr) |
CA (1) | CA2609313C (fr) |
DE (1) | DE602006005649D1 (fr) |
ES (1) | ES2322501T3 (fr) |
FR (1) | FR2886302B1 (fr) |
PL (1) | PL1885786T3 (fr) |
WO (1) | WO2006125891A2 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2947947A1 (fr) * | 2009-07-09 | 2011-01-14 | Nexans | Composition reticulable pour cable d'energie et/ou de telecommunication a base d'un cocktail silane et procede de fabrication dudit cable |
EP2508559B1 (fr) * | 2011-04-01 | 2013-11-13 | Evonik Degussa GmbH | Mélanges de caoutchouc |
JP6023579B2 (ja) * | 2012-12-19 | 2016-11-09 | 株式会社ブリヂストン | ゴム組成物の製造方法、ゴム組成物及びタイヤ |
PL3055360T3 (pl) * | 2013-10-07 | 2021-10-11 | Ppg Industries Ohio, Inc. | Poddane obróbce wypełniacze, zawierające je kompozycje oraz wytworzone z nich wyroby |
DE102015224450A1 (de) * | 2015-12-07 | 2017-06-08 | Evonik Degussa Gmbh | Kautschukmischungen |
US10172413B2 (en) * | 2016-07-11 | 2019-01-08 | The Board Of Trustees Of The University Of Alabama | Customized insoles for diabetic and pressure ulcers |
JP7157902B2 (ja) * | 2018-06-29 | 2022-10-21 | 住友ゴム工業株式会社 | ゴム組成物とそれを用いた紙送りローラ |
CN109174048B (zh) * | 2018-11-12 | 2021-12-28 | 月旭科技(上海)股份有限公司 | 硅胶色谱填料及其制备方法 |
CN109679349A (zh) * | 2018-12-04 | 2019-04-26 | 中山精美鞋业有限公司 | 一种透明橡胶鞋底的制作工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2340323A1 (fr) * | 1976-02-06 | 1977-09-02 | Malaysian Rubber Producers | Nouveaux composes azo-silane, leur procede de preparation et leur application pour le renforcement des caoutchoucs |
US20030114601A1 (en) * | 2001-09-19 | 2003-06-19 | Cruse Richard W. | Blends of polysulfide silanes with tetraethoxysilane as coupling agents for mineral-filled elastomer compositions |
FR2839720A1 (fr) * | 2002-05-15 | 2003-11-21 | Rhodia Chimie Sa | Composes organosiliciques utilisables notamment en tant qu'agent de couplage, compositions d'elastomere(s) les contenant et articles en elastomeres(s) prepares a partir de telles compositions |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3908368B2 (ja) * | 1997-12-25 | 2007-04-25 | 住友ゴム工業株式会社 | タイヤトレッド用ゴム組成物 |
FR2804120A1 (fr) * | 2000-01-24 | 2001-07-27 | Michelin Soc Tech | Composition de caoutchouc pour pneumatique comportant une charge blanche renforcante et un systeme de couplage (charge blanche/elstomere) |
JP4628567B2 (ja) * | 2001-03-12 | 2011-02-09 | 住友ゴム工業株式会社 | ゴム組成物 |
FR2823210B1 (fr) * | 2001-04-10 | 2005-04-01 | Rhodia Chimie Sa | Organoxysilanes polysulfures utilisables notamment en tant qu'agent de couplage, compositions d'elastomere(s) les contenant et articles en elastomere(s) prepares a partir de telles compositions |
-
2005
- 2005-05-26 FR FR0505286A patent/FR2886302B1/fr not_active Expired - Fee Related
-
2006
- 2006-05-18 KR KR1020077027475A patent/KR100882763B1/ko not_active IP Right Cessation
- 2006-05-18 US US11/920,994 patent/US8664311B2/en not_active Expired - Fee Related
- 2006-05-18 BR BRPI0609894-0A patent/BRPI0609894A2/pt not_active Application Discontinuation
- 2006-05-18 JP JP2008512864A patent/JP5014333B2/ja not_active Expired - Fee Related
- 2006-05-18 PL PL06755498T patent/PL1885786T3/pl unknown
- 2006-05-18 EP EP06755498A patent/EP1885786B1/fr not_active Not-in-force
- 2006-05-18 CN CN2006800248852A patent/CN101218290B/zh not_active Expired - Fee Related
- 2006-05-18 ES ES06755498T patent/ES2322501T3/es active Active
- 2006-05-18 AT AT06755498T patent/ATE425214T1/de not_active IP Right Cessation
- 2006-05-18 WO PCT/FR2006/001120 patent/WO2006125891A2/fr active Application Filing
- 2006-05-18 CA CA2609313A patent/CA2609313C/fr not_active Expired - Fee Related
- 2006-05-18 DE DE602006005649T patent/DE602006005649D1/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2340323A1 (fr) * | 1976-02-06 | 1977-09-02 | Malaysian Rubber Producers | Nouveaux composes azo-silane, leur procede de preparation et leur application pour le renforcement des caoutchoucs |
US20030114601A1 (en) * | 2001-09-19 | 2003-06-19 | Cruse Richard W. | Blends of polysulfide silanes with tetraethoxysilane as coupling agents for mineral-filled elastomer compositions |
FR2839720A1 (fr) * | 2002-05-15 | 2003-11-21 | Rhodia Chimie Sa | Composes organosiliciques utilisables notamment en tant qu'agent de couplage, compositions d'elastomere(s) les contenant et articles en elastomeres(s) prepares a partir de telles compositions |
Also Published As
Publication number | Publication date |
---|---|
EP1885786B1 (fr) | 2009-03-11 |
KR100882763B1 (ko) | 2009-02-09 |
ES2322501T3 (es) | 2009-06-22 |
PL1885786T3 (pl) | 2009-08-31 |
JP5014333B2 (ja) | 2012-08-29 |
CA2609313C (fr) | 2012-07-10 |
FR2886302A1 (fr) | 2006-12-01 |
CN101218290A (zh) | 2008-07-09 |
CA2609313A1 (fr) | 2006-11-30 |
US20090215952A1 (en) | 2009-08-27 |
EP1885786A2 (fr) | 2008-02-13 |
BRPI0609894A2 (pt) | 2011-10-11 |
US8664311B2 (en) | 2014-03-04 |
CN101218290B (zh) | 2011-10-19 |
JP2008542463A (ja) | 2008-11-27 |
WO2006125891A3 (fr) | 2007-01-18 |
FR2886302B1 (fr) | 2007-06-29 |
ATE425214T1 (de) | 2009-03-15 |
KR20080007632A (ko) | 2008-01-22 |
DE602006005649D1 (de) | 2009-04-23 |
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