EP3589698A1 - Verfahren zur herstellung von zu elastomeren vernetzbaren massen - Google Patents
Verfahren zur herstellung von zu elastomeren vernetzbaren massenInfo
- Publication number
- EP3589698A1 EP3589698A1 EP17708724.4A EP17708724A EP3589698A1 EP 3589698 A1 EP3589698 A1 EP 3589698A1 EP 17708724 A EP17708724 A EP 17708724A EP 3589698 A1 EP3589698 A1 EP 3589698A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- optionally
- radical
- weight
- hydrocarbon radical
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000008569 process Effects 0.000 title claims abstract description 18
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- 239000000806 elastomer Substances 0.000 title claims abstract description 13
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 25
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 11
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- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
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- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 description 2
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- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- SBRXLTRZCJVAPH-UHFFFAOYSA-N ethyl(trimethoxy)silane Chemical compound CC[Si](OC)(OC)OC SBRXLTRZCJVAPH-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012765 fibrous filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- 230000036541 health Effects 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
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 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
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([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
- 239000004579 marble Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
- 125000003136 n-heptyl 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])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 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
- 230000006855 networking Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 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
- 231100000616 occupational exposure limit Toxicity 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
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 125000003544 oxime group Chemical group 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- BMMZQFXLAFBGTI-UHFFFAOYSA-N pent-1-ene Chemical compound [CH2]CCC=C BMMZQFXLAFBGTI-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 150000003008 phosphonic acid esters Chemical class 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- DENFJSAFJTVPJR-UHFFFAOYSA-N triethoxy(ethyl)silane Chemical compound CCO[Si](CC)(OCC)OCC DENFJSAFJTVPJR-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- UZIAQVMNAXPCJQ-UHFFFAOYSA-N triethoxysilylmethyl 2-methylprop-2-enoate Chemical compound CCO[Si](OCC)(OCC)COC(=O)C(C)=C UZIAQVMNAXPCJQ-UHFFFAOYSA-N 0.000 description 1
- WDUXKFKVDQRWJN-UHFFFAOYSA-N triethoxysilylmethyl prop-2-enoate Chemical compound CCO[Si](OCC)(OCC)COC(=O)C=C WDUXKFKVDQRWJN-UHFFFAOYSA-N 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical class CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- UOKUUKOEIMCYAI-UHFFFAOYSA-N trimethoxysilylmethyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)COC(=O)C(C)=C UOKUUKOEIMCYAI-UHFFFAOYSA-N 0.000 description 1
- JPPHEZSCZWYTOP-UHFFFAOYSA-N trimethoxysilylmethyl prop-2-enoate Chemical compound CO[Si](OC)(OC)COC(=O)C=C JPPHEZSCZWYTOP-UHFFFAOYSA-N 0.000 description 1
- UOTGHAMTHYCXIM-UHFFFAOYSA-N trimethoxysilylmethylurea Chemical compound CO[Si](OC)(OC)CNC(N)=O UOTGHAMTHYCXIM-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
- C08G77/08—Preparatory processes characterised by the catalysts used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
- C08G77/16—Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxyl groups
-
- 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
-
- 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
- C08K5/5465—Silicon-containing compounds containing nitrogen containing at least one C=N bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Definitions
- the invention relates to a process for the preparation of elastomers crosslinkable compositions based on
- Organosilicon compounds in particular neutral-crosslinking compositions based on organosilicon compounds, in which essentially only alcohols are eliminated during the crosslinking.
- RTV-1 One-component silicone rubber compounds
- RTV-1 mixtures are polydiorganosiloxanes which are terminated either by OH groups or by silyl groups which carry hydrolyzable groups. These products are storage stable under the exclusion of moisture, polymerize under the influence of water or humidity. Depending on
- Oxime-crosslinking compounds which act as a cleavage product instead of
- 2-Butanone oxime other oximes such as 2-propanone oxime or 2-pentanone oxime split off, are usually listed only in individual regions in the chemical registers and can therefore be used only with considerable restrictions as a substitute. In addition, significantly higher market prices are what the
- Alkoxy-crosslinking RTV-1 compositions are described in many places, but all of these formulations employ organopolysiloxanes endblocked as base polymers with alkoxy groups which must first be provided in a separate functionalization step, the so-called "end-capping", the catalyst generally having to be deactivated thereafter. Examples thereof are described in US 5,055,502 A (catalysis with zinc betadiketonates), US 5,079,324 A (LiOH catalysis), US 5,728,794 A (phosphoric acid partial ester catalysis) and US 3,504,051 A (catalysis with sodium acetate). Thus, a simple production process in a "one-step process" is not possible.
- Oxi-compounds do not fulfill the requirement for freedom from decla- ration according to hazardous substances legislation, since they exceed the concentration of 1% by weight of free oxime immediately or in the course of storage. Oximes are considered hazardous to health
- 2-butanone oxime is classified as carcinogenic.
- oxime compounds are technically easy to prepare, but have a potential hazard or Oximmassen with less critical Oximvernetzern are incomplete
- EP 1 700 885 A1 and EP 98 369 A2 describe the use of special silanes, the alkoxy and oximo groups on the same
- EP 1 788 018 A1 and EP 1 705 222 A1 describe oximosilanes which carry 2-propanone oximo groups instead of 2-butanone oximo groups. This prevents the release of 2-butanone oxime but releases a similar amount of another oxime. The amount of free oxime in the compound is thus not significantly reduced. Such silanes are also expensive and also due to the sometimes missing registration status only with great restrictions available.
- No. 8,618,235 B2 describes compounds of oximosilane-terminated polymers in which alkoxysilane is introduced as a scavenger. The release of the oximosilane in the endblocking and compounding can not be prevented thereby and
- Oximosilan- crosslinker per 100 parts of polymer easily exceeds the critical mark of 1% of free silane over the storage time. Thus, such products must also be marked as hazardous.
- Alkoxysilanes is greater, the higher the required
- the object of the invention is therefore to overcome these disadvantages of the prior art and to provide neutral-crosslinking silicone compositions which have good storage stability, wherein the limit concentrations of free oximes for the classification as hazardous material is reliably not exceeded in the masses over the storage time, and which can be obtained without the separate preparation of functionalized polymers.
- the invention relates to a process for the preparation of elastomers crosslinkable compositions, characterized in that
- R is a monovalent hydrocarbon radical having 1 to 18 carbon atoms, preferably a methyl or vinyl radical
- R 1 is the same or different and a monovalent
- Hydrocarbon radical having 1 to 8 carbon atoms, preferably a methyl or ethyl radical, and (3) organosilicon compounds having at least one over
- Carbon-bonded, basic nitrogen-containing radical preferably aminosilanes
- R 2 is a monovalent hydrocarbon radical having 1 to 18 carbon atoms, preferably a methyl or vinyl radical, and
- R 3 is the same or different and a monovalent
- Partial hydrolysates and optionally further
- radicals R are alkyl radicals, such as the methyl, ethyl, n-propyl, iso-propyl, 1-n-butyl, 2-n-butyl, iso-butyl, tert. Butyl, n-pentyl, iso-pentyl, neo-pentyl, tert. -
- Cycloheptyl and methylcyclohexyl radicals are cyclohexyl radicals; Alkenyl radicals, such as the vinyl, 5-hexenyl, cyclohexenyl, 1-propenyl, allyl,
- Alkynyl radicals such as the ethynyl, propargyl and 1-propynyl radicals
- Aryl radicals such as the phenyl, naphthyl, anthryl and phenanthryl radicals
- Alkaryl radicals such as o-, m-, p-tolyl radicals, xylyl radicals and ethylphenyl radicals
- aralkyl radicals such as the benzyl radical, the ⁇ - and the ⁇ -phenylethyl radical.
- radicals R 1 are alkyl radicals having 1 to 8 C atoms.
- radicals R 2 are alkyl and alkenyl radicals having 1 to 18 carbon atoms.
- radicals R 3 are alkyl radicals having 1 to 5 C atoms.
- the polyorganosiloxane (1) is preferably first initially charged and homogenized with plasticizer (8) in a first step, in addition to the alkoxysilane (2) and the organosilicon compound (3).
- component (3) can be carried out together with component (2) or after addition of (2).
- the mixture is homogenized, preferably at the pressure of the environment, such as at the pressure of 900 to 1100 hPa, optionally at reduced pressure, such as at a pressure of 50 to 300 hPa.
- a second step is in the inventive
- ketoximosilane (4) was added and mixed.
- the mixture is homogenized, preferably at the pressure of
- a third step it is preferable to add to the reaction mixture from the second step further alkoxysilanes (2) of the formula (I) and / or their partial hydrolysates and further organosilicon compounds (3).
- Steps 2 and 3 can also be done together.
- alkoxysilanes (2) and / or their partial hydrolysates are preferably used in a total amount of 1 to 25 parts by weight, preferably 2 to 15 parts by weight, based on 100 parts by weight of organopolysiloxane (1),
- Alkoxysilanes (2) and / or their Generalhydrolysate preferably in an amount of 1 to 5 parts by weight, based on 100 parts by weight of organopolysiloxane (1) used.
- organosilicon compounds (3) are preferably used in a total amount of from 0.25 to 10 parts by weight, preferably from 1 to 7.5 parts by weight, in each case based on 100 parts by weight of the organopolysiloxanes (1),
- Organosilicon compounds (3) preferably in amounts of 0.1 to 1 parts by weight, based on 100 parts by weight
- Condensation catalysts preferably tin catalysts, optionally
- the process according to the invention preferably takes place
- the preparation is preferably carried out at temperatures between 10 and 80 ° C, more preferably between 20 and 60 ° C, and at pressures between 50 to 2000 hPa
- Atmospheres more preferably between 100 to 1500 hPa atmospheres.
- Component (1) is preferably substantially linear, hydroxyl-terminated organopolysiloxanes, more preferably those of the formula
- n is an integer from 500 to 2000, preferably from 600 to 1700, preferably from 600 to 1300, is.
- organopolysiloxane (1) or a mixture of at least two kinds of organopolysiloxanes (1) can be used.
- radicals R apply in their entirety to radicals R 4 .
- the radical R 4 is preferably alkyl groups having 1 to 6 carbon atoms, more preferably the methyl radical.
- the organopolysiloxanes (1) are preferably a, ⁇ -dihydroxydialkylpolysiloxanes, more preferably a, ⁇ -dihydroxypolydimethylsiloxanes.
- organopolysiloxanes (1) are examples of organopolysiloxanes (1).
- n is an integer of 500 to 2000, preferably 600 to 1700, more preferably 600 to 1300, and y represents such an integer that y / x is preferably 0.01 to 0.1.
- the organopolysiloxanes (1) used according to the invention have a viscosity of preferably 10,000 to 700,000 mPa. s, preferably from 20,000 to 400,000 mPa.s, more preferably from 50,000 to 200,000 mPa. , each at 25 ° C.
- the organopolysiloxanes (1) are N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)
- Silicon chemistry commonly used methods are produced.
- alkoxysilanes (2) used according to the invention are organyltrialkoxysilanes, such as methyltrimethoxysilane, ethyltrimethoxysilane, n-propyltrimethoxysilane, vinyltrimethoxysilane, methyltriethoxysilane, ethyltriethoxysilane, n-propyltriethoxysilane and vinyltriethoxysilane, and the partial hydrolysates of the abovementioned silanes with a maximum of 10 silicon atoms.
- organyltrialkoxysilanes such as methyltrimethoxysilane, ethyltrimethoxysilane, n-propyltrimethoxysilane, vinyltrimethoxysilane, methyltriethoxysilane, ethyltriethoxysilane, n-propyltriethoxysilane and vinyltriethoxysilane
- silanes (2) used according to the invention are preferably methyltrimethoxysilane and vinyltrimethoxysilane.
- Component (3) is preferably organosiloxanes or organosilanes having at least one radical bonded via carbon to silicon, basic nitrogen-containing radical, with aminosilanes being preferred.
- A is a radical of the formula -R 6 - (NR 7 -R 8 -) X NR 7 2 ,
- R 5 is the same or different and a monovalent
- Hydrocarbon radical having 1 to 8 C atoms, preferably a methyl or ethyl radical
- R s is a divalent hydrocarbon radical having 1 to 8 C atoms
- R 7 is identical or different and is a hydrogen atom or a monovalent hydrocarbon radical having 1 to 8 C atoms, preferably a hydrogen atom,
- R 8 is a divalent hydrocarbon radical having 1 to 18 C atoms, preferably 2 C atoms, and
- x is 0, 1, 2 or 3, preferably 0 or 1.
- Component (4) is ketoximosilanes of the formula
- R 2 is a monovalent hydrocarbon radical having 1 to 18 carbon atoms, preferably a methyl or vinyl radical, and
- R 3 is the same or different and a monovalent
- Hydrocarbon radical having 1 to 5 carbon atoms
- Isopropyl radical means.
- ketoximosilanes (4) of the formula (II) and / or their partial hydrolysates are used in amounts of at most 1% by weight, based on the total weight of the compositions. Preferably, they are used in amounts of at least 0.25 wt .-%, based on the total weight of the masses.
- the amount of oxime liberated upon storage in the compositions is
- condensation catalysts (5) For preparing the crosslinkable compositions according to the invention, preference is given to condensation catalysts (5)
- crosslinking masses could exist.
- condensation catalysts (5) are organic compounds of calcium, strontium, barium, copper, silver, tin, zinc, zirconium, titanium, bismuth, lead, iron and aluminum.
- Preferred among these condensation catalysts are alkyl titanates, alkylzirconates, zinc carboxylates, titanium chelates and organic tin compounds such as di-n-butyltin diacetate, di-n-butyltin dilaurate, di-n-octyltin diacetate, di-n-octyltin dilaurate, dibutyltin oxide, dioctyltin oxide and reaction products of at least two molecules per molecule
- condensation catalysts (5) are basic organic compounds such as
- the catalysts (5) are
- organic dialkyltin carboxylates or their reaction products with alkoxysilanes e.g. Dioctyltin dilaurate, alkyl titanates, alkyl zirconates, titanium chelates such as diisobutoxy bis
- monovalent hydrocarbon radicals as hydrolyzable silane or its oligomer with diorganotin diacylate or diorganotin oxide.
- catalysts (5) are used in the process according to the invention, these are amounts of preferably 0.0001 to 2% by weight, preferably 0.001 to 1.5% by weight, in each case based on the total weight of the composition of the invention.
- fillers (6) are non-reinforcing
- Fillers ie fillers with a BET surface area of up to 50 m 2 / g, such as quartz, diatomaceous earth, calcium silicate, zirconium silicate, zeolites, metal oxide powder, such as aluminum, titanium, iron or zinc oxides or their mixed oxides, barium sulfate , Calcium carbonate, gypsum, talc, kaolin, silicon nitride,
- Silicon-aluminum mixed oxides of large BET surface area Silicon-aluminum mixed oxides of large BET surface area
- fillers such as asbestos and plastic fibers.
- the fillers mentioned may be rendered hydrophobic, for example by treatment with organosilanes or siloxanes or by etherification of hydroxyl groups to alkoxy groups. If fillers (6) are used, they are
- compositions according to the invention contain fillers (6), these are amounts of preferably 5 to 200 parts by weight, preferably 8 to 150 parts by weight, based in each case on 100 parts by weight of component (1).
- the compositions of the invention preferably contain fillers (6).
- fillers (6) are preferably added to the reaction mixture from the second or, if a third step is conducted, to the reaction mixture from the third step, and then tin catalysts (5), optionally
- Adhesion promoter (7), optionally stabilizers (9) and optionally additives (10) are added and mixed together.
- adhesion promoter (7) before the addition of
- the adhesion promoter (7) optionally used in the compositions according to the invention may be silanes and organopolysiloxanes having functional groups, for example those containing amino, glycidoxypropyl, ureidopropyl, carbamato or methacryloxypropyl radicals.
- adhesion promoters (7) are epoxysilanes, such as
- Glycidoxypropyltrimethoxysilanes glycidoxypropylmethyldimethoxysilane, glycidoxypropyltriethoxysilane or
- compositions of the invention preferably contain adhesion promoter (7).
- the plasticizer (8) which may be used is preferably silicone oils which are resistant to component (1).
- viscosities between 5 and 10,000 mPas at 25 ° C or hydrocarbon mixtures with viscosities between 1 and 20 mPas at 40 ° C, more preferably with
- plasticizers (8) are used in the process according to the invention, these are amounts of preferably 5 to 100 parts by weight, more preferably 15 to 70
- plasticizers are preferred.
- plasticizers are in the first
- crosslinkable masses optionally used stabilizers
- compositions according to the invention are acid phosphoric acid esters, phosphonic acids and acid phosphonic acid esters. If the compositions according to the invention contain stabilizers (9), they are amounts of preferably 0.01 to 1 part by weight, based on 100 parts by weight of component (1). The compositions of the invention preferably contain stabilizers (9).
- optionally used additives (10) are fungicides, dyes, pigments, heat stabilizers,
- Antioxidants organic solvents, electrical property modifiers such as conductive carbon black, flame retardants and light stabilizers.
- inventive mass additives (10) contain amounts of preferably 0.01 to 30
- compositions of the invention preferably contain additives (10).
- the inventive preparation of the crosslinkable compositions and their storage is preferably carried out under substantially anhydrous conditions, so that the masses can not cure prematurely.
- the inventive method is under
- Inert gas atmosphere particularly preferably under nitrogen, carried out.
- the normal water content of the air is sufficient.
- compositions according to the invention are preferably added
- the crosslinking can, if desired, also at higher or lower temperatures than room temperature and / or by means of the normal water content of the air
- compositions prepared according to the invention can be used for all
- Uses can be used, for which can be used when accessing water at room temperature to elastomer crosslinking compositions.
- compositions prepared according to the invention are thus excellently suitable, for example, as sealing compounds for joints, including vertically extending joints, and similar voids of e.g. 10 to 40 mm clear width, e.g. from
- Adhesives or sealants e.g. in window construction or in the production of aquariums or showcases, as well as for
- Components or used as a protective coating are Components or used as a protective coating.
- the viscosity data are based on the measurement according to DIN 53019 at 25 ° C.
- the mechanical properties of the elastomers are determined in each case according to the following standardized tests:
- the determination of the oxime content of the crosslinkable composition is carried out by gas chromatography (GC).
- sample bags are tempered for 10 minutes at 90 ° C, then a sample is drawn from the gas phase over the crosslinkable mass and injected into the injector.
- the carrier gas used for the gas chromatography is hydrogen with a volume flow of 78 ml / min and a split ratio of 1: 150, the detection is carried out by means of FID.
- the injector temperature is 250 ° C.
- the temperature profile starts with 110 ° C at a heating rate of 40 ° C / min to the end point 250 ° C.
- the column material is a 10 m silica column CP-Sil 19 CB with 0.1 mm inner diameter and 0.2 ⁇ coating thickness.
- Viscosity of 80 000 mPa.s and 115 g of a trimethylsilyl-endblocked polydimethylsiloxane having a viscosity of 100 mPa.s were homogenized in a planetary mixer and with 18g of methyltris (methylethylketoximo) silane and 6 g
- Viscosity of 80,000 mPa.s and 115 g of a trimethylsilyl-endblocked polydimethylsiloxane having a viscosity of 100 mPa.s were homogenized in a planetary mixer and mixed with 14 g of vinyltrimethoxysilane and 2 g of 3- (2-aminoethyl) aminopropyltrimethoxysilane for 5 minutes , Subsequently, another 4 g of 3- (2-aminoethyl) aminopropyltrimethoxysilane
- Viscosity of 80,000 mPa.s and 115 g of a trimethylsilyl-endblocked polydimethylsiloxane having a viscosity of 100 mPa.s were homogenized in a planetary mixer and mixed with 8.7 g of vinyltrimethoxysilane and 1.3 g of 3- (2-aminoethyl) aminopropyltrimethoxysilane ,
- a second step after stirring for 8 minutes, 5 g of vinyltris (methyl ethyl ketoximo) silane were added and mixed for a further 2 minutes.
- Dibutyltin diacetate mixed under vacuum. The product was bottled for storage in moisture-proof containers.
- the compound obtained in each case according to Examples 1-4 and Comparative Examples 1 and 2 is packed in moisture-tight containers and the compounds are each allowed to crosslink fresh after preparation and also left to crosslink after storage at 14d / 70 ° C.
- the compound obtained in each case in a 2 mm thick is packed in moisture-tight containers and the compounds are each allowed to crosslink fresh after preparation and also left to crosslink after storage at 14d / 70 ° C.
- Table 1 Determination of the oxime content and the skin formation time fresh after preparation and after storage
- Comparative Example 2 shows initially not stable consistency after production, but this changes after a short storage time at room temperature.
- Examples 1-4 according to the invention show good and very stable paste properties as well as good mechanical properties
- Examples 1-4 have a content of free oxime of only 0.3 to 0.5% and thus well below 1% and are therefore not classified as hazardous.
- the oxime masses according to Comparative Experiment 1 have a content of free oxime of 1.7%, ie significantly higher than 1% and are therefore classified as hazardous.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2017/054639 WO2018157914A1 (de) | 2017-02-28 | 2017-02-28 | Verfahren zur herstellung von zu elastomeren vernetzbaren massen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3589698A1 true EP3589698A1 (de) | 2020-01-08 |
Family
ID=58228097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17708724.4A Withdrawn EP3589698A1 (de) | 2017-02-28 | 2017-02-28 | Verfahren zur herstellung von zu elastomeren vernetzbaren massen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11028268B2 (de) |
| EP (1) | EP3589698A1 (de) |
| JP (1) | JP2020509101A (de) |
| KR (1) | KR102256900B1 (de) |
| CN (1) | CN110402272B (de) |
| WO (1) | WO2018157914A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111770977B (zh) * | 2018-01-03 | 2022-09-13 | Sika技术股份公司 | 具有可调节流动行为的有机硅密封剂 |
| EP4532569A1 (de) | 2022-06-02 | 2025-04-09 | Chevron Phillips Chemical Company Lp | Hochporöse fluorierte siliciumbeschichtete aluminiumoxidaktivatorträger und verwendungen davon in metallocenbasierten katalysatorsystemen zur olefinpolymerisierung |
| CN119709106A (zh) * | 2024-12-13 | 2025-03-28 | 湖北兴瑞硅材料有限公司 | 低水汽透过率光伏组件用硅酮密封胶及制备方法 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504051A (en) | 1967-07-24 | 1970-03-31 | Dow Corning | Castable siloxane block copolymers |
| DE3212008A1 (de) * | 1982-03-31 | 1983-10-06 | Wacker Chemie Gmbh | Unter ausschluss von wasser lagerfaehige, bei zutritt von wasser bei raumtemperatur zu elastomeren vernetzende massen |
| US4380660A (en) | 1982-07-01 | 1983-04-19 | Allied Corporation | Producing alkoxysilanes and alkoxy-oximinosilanes |
| GB8724956D0 (en) * | 1987-10-24 | 1987-11-25 | Dow Corning Sa | Hydroxy terminated polysiloxanes |
| FR2634768A1 (fr) | 1988-07-29 | 1990-02-02 | Rhone Poulenc Chimie | Procede de preparation de diorganopolysiloxanes a groupements terminaux alcoxy |
| FR2638752B1 (fr) | 1988-11-04 | 1992-07-24 | Rhone Poulenc Chimie | Procede de preparation de diorganopolysiloxanes a groupements terminaux alcoxy |
| NZ285011A (en) * | 1994-06-07 | 1998-05-27 | Allied Signal Inc | Oximino silane terminated polymers and elastomers formed therefrom |
| DE19533915A1 (de) | 1995-09-13 | 1997-03-20 | Bayer Ag | Verfahren zur Herstellung von Poly(diorganosiloxanen) mit Diorganyloxyorganylsilyl- oder Triorganylsilyl-Endgruppen, vernetzbare Mischungen, enthaltend Poly(diorganosiloxane) mit Diorganyloxyorganylsilyl- oder Triorganyloxysilyl-Endgruppen und deren Verwendung |
| DE19725517A1 (de) * | 1997-06-17 | 1998-12-24 | Huels Silicone Gmbh | Alkoxyvernetzende RTVl-Siliconkautschuk-Mischungen |
| DE19725501C1 (de) * | 1997-06-17 | 1998-12-10 | Huels Silicone Gmbh | Alkoxyvernetzende RTVl-Siliconkautschuk-Mischungen |
| DE19757308A1 (de) * | 1997-12-22 | 1999-07-01 | Wacker Chemie Gmbh | Unter Abspaltung von Alkoholen zu Elastomeren vernetzbare Organopolysiloxanmassen |
| DE10259613A1 (de) * | 2002-12-19 | 2004-07-08 | Wacker-Chemie Gmbh | Organopolysiloxanzusammensetzungen und deren Einsatz in bei Raumtemperatur vernetzbaren niedermoduligen Massen |
| DE10319303A1 (de) | 2003-04-29 | 2004-12-09 | Wacker-Chemie Gmbh | Verfahren zur Herstellung von vernetzbaren Massen auf der Basis von Organosiliciumverbindungen |
| DE102004046180A1 (de) * | 2004-09-23 | 2006-03-30 | Wacker Chemie Ag | Stickstoff aufweisende Organopolysiloxane und deren Verwendung in vernetzbaren Massen |
| DE102005010667A1 (de) | 2005-03-08 | 2006-09-14 | Nitrochemie Aschau Gmbh | Härter für Siliconkautschukmassen |
| DE102005010669A1 (de) | 2005-03-08 | 2006-09-14 | Nitrochemie Aschau Gmbh | Härter für Siliconkautschukmassen |
| GB0515052D0 (en) * | 2005-07-22 | 2005-08-31 | Dow Corning | Organosiloxane compositions |
| DE102005054920A1 (de) | 2005-11-17 | 2007-05-24 | Nitrochemie Aschau Gmbh | Härter für Siliconkautschukmassen |
| EP1894975A1 (de) | 2006-08-30 | 2008-03-05 | Sika Technology AG | Siliconzusammensetzung |
| DE102007037198A1 (de) | 2007-08-07 | 2009-02-12 | Wacker Chemie Ag | Vernetzbare Massen auf der Basis von Organosiliciumverbindungen |
| JP5902574B2 (ja) * | 2012-07-18 | 2016-04-13 | 信越化学工業株式会社 | 室温硬化性オルガノポリシロキサン組成物及び該組成物を使用した自動車オイルシール |
| JP6319168B2 (ja) * | 2015-04-28 | 2018-05-09 | 信越化学工業株式会社 | 縮合反応生成物の製造方法、該縮合反応生成物を含有する室温硬化性オルガノポリシロキサン組成物の製造方法 |
-
2017
- 2017-02-28 EP EP17708724.4A patent/EP3589698A1/de not_active Withdrawn
- 2017-02-28 JP JP2019541085A patent/JP2020509101A/ja active Pending
- 2017-02-28 US US16/483,105 patent/US11028268B2/en not_active Expired - Fee Related
- 2017-02-28 KR KR1020197027472A patent/KR102256900B1/ko not_active Expired - Fee Related
- 2017-02-28 CN CN201780087538.2A patent/CN110402272B/zh not_active Expired - Fee Related
- 2017-02-28 WO PCT/EP2017/054639 patent/WO2018157914A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20200239688A1 (en) | 2020-07-30 |
| JP2020509101A (ja) | 2020-03-26 |
| CN110402272A (zh) | 2019-11-01 |
| US11028268B2 (en) | 2021-06-08 |
| CN110402272B (zh) | 2021-11-26 |
| WO2018157914A1 (de) | 2018-09-07 |
| KR102256900B1 (ko) | 2021-05-31 |
| KR20190116471A (ko) | 2019-10-14 |
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