WO2008013182A1 - Procédé de production d'un polymère d'oxyalkylène - Google Patents
Procédé de production d'un polymère d'oxyalkylène Download PDFInfo
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- WO2008013182A1 WO2008013182A1 PCT/JP2007/064526 JP2007064526W WO2008013182A1 WO 2008013182 A1 WO2008013182 A1 WO 2008013182A1 JP 2007064526 W JP2007064526 W JP 2007064526W WO 2008013182 A1 WO2008013182 A1 WO 2008013182A1
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/71—Monoisocyanates or monoisothiocyanates
- C08G18/718—Monoisocyanates or monoisothiocyanates containing silicon
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/71—Monoisocyanates or monoisothiocyanates
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/83—Chemically modified polymers
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/48—Polymers modified by chemical after-treatment
Definitions
- the present invention relates to a method for producing an oxyalkylene polymer in which a reactive silicon group is bonded to a polyoxyalkylene chain via a urethane bond.
- a curable composition comprising a polymer having a reactive silicon group at the end of a polyoxyalkylene chain (also referred to as a modified silicone polymer) as a curing component is cured with moisture and excellent in rubber elasticity.
- the curable composition is widely used as an adhesive, a coating agent, and a sealing material.
- a curable composition comprising a modified silicone polymer having a methyldimethoxysilyl group at the end of a polyoxyalkylene chain as a curing component is widely accepted as a sealing material because of its excellent elongation property ( See Patent Document 1.
- a curable composition containing a polymer having a polyoxyalkylene chain and a trialkoxysilyl group as a curing component has a high curing speed and a high crosslinking density, so that it has a fast curing adhesive, coating agent, and sealing. It is useful as a material (see Patent Document 2).
- Patent Document 3 describes a polymer in which a trialkoxysilyl group is bonded to a polyoxyalkylene chain end via a urethane bond.
- a method of urethanizing a polyoxypropylene polyol and an isocyanate substituted trialkoxysilane compound having one isocyanate group in the molecule is described.
- a urethane polymerization catalyst such as dibutyltin dilaurate.
- Typical examples of the urethane polymerization catalyst include organic tin compounds such as dibutyltin dilaurate and dioctyltin dilaurate (for example, Patent Document 4 below), organic amines such as triethylenediamine and triethylamine, and other salts. Other examples include metal salt compounds such as bismuth, cobalt, and iron.
- Patent Document 5 below discloses tin carboxylate (11) such as tin 2-ethylhexanoate and tin n-octylate as a curing catalyst for an organic polymer having a hydrolyzable group-containing group. It is also described that organotin (IV) compounds such as dibutyltin dilaurate and dibutyltin maleate are excellent in curing speed and cured physical properties!
- Patent Document 1 Japanese Patent Laid-Open No. 03-072527
- Patent Document 2 Japanese Patent Laid-Open No. 03-047825
- Patent Document 3 Japanese Patent Laid-Open No. 10-245482
- Patent Document 4 Japanese Unexamined Patent Publication No. 2003-89742
- Patent Document 5 Japanese Patent No. 3779953
- the present invention has been made in view of the above-mentioned circumstances, and it is preferable that the reactive alkyl group is bonded to the polyoxyalkylene chain via a urethane bond!
- a method for producing an oxyalkylene polymer which can achieve storage stability.
- the method for producing an oxyalkylene polymer of the present invention includes an oxyalkylene polymer in which a reactive cage group is bonded to a polyoxyalkylene chain via a urethane bond ( P) is a divalent organic compound comprising a hydroxyl group-containing polymer (pP) having a polyoxyalkylene chain and a hydroxyl group, and an isocyanate group-containing compound (U) represented by the following general formula (1): Has a step of urethanization reaction in the presence of tin catalyst (S) It is characterized by that.
- X 1 represents an alkoxy group having 1 to 6 carbon atoms
- R 1 represents an optionally substituted carbon number
- Q 1 represents carbon number It represents a divalent organic group of 1 to 20, and a represents an integer of 1 to 3.
- a plurality of R 1 is same with or different dates Te each other! /
- the organotin catalyst (S) is 1S, bis (2-ethylhexanoate) tin and / or di (n-octylate) tin.
- the organotin catalyst (S) is used in an amount of lOppm to 150ppm relative to the hydroxyl group-containing polymer (pP)! /.
- a is preferably 3.
- the molar ratio (isocyanate group / hydroxyl group) of the total number of isocyanate groups of the isocyanate group-containing compound (U) to the total number of hydroxyl groups of the hydroxyl group-containing polymer (pP) is preferably 0.80 to;
- the number average molecular weight of the hydroxyl group-containing polymer (pP) is preferably 1000 to 20000 as the molecular weight per hydroxyl group.
- the hydroxyl group-containing polymer (pP) is preferably a hydroxyl group-containing polymer obtained by ring-opening polymerization of an alkylene oxide to a compound having an active hydrogen atom in the presence of a double metal cyanide complex.
- the urethanation reaction is performed under a reaction temperature of 50 to 150 ° C. and in an inert gas atmosphere.
- the hydroxyl group-containing polymer (pP) used in the present invention is a polymer having a polyoxyalkylene chain and a hydroxyl group.
- the polyoxyalkylene chain in the hydroxyl group-containing polymer (pP) is preferably composed of polymer units of oxyalkylene formed by ring-opening polymerization of an alkylene oxide having 2 to 6 carbon atoms. Specifically, it comprises polymerized units of oxyalkylene formed by ring-opening polymerization of one or more alkylene oxides selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, and hexylene oxide. More preferred. It is particularly preferred that it consists of polymerized units of oxyalkylene formed by ring-opening polymerization of propylene oxide.
- the arrangement of the two or more oxyalkylene polymer units may be either block or random. ,.
- the number average molecular weight (Mn) of the hydroxyl group-containing polymer (pP) is preferably 1000 to 20000, more preferably 3000 to 10,000, as the molecular weight per hydroxyl group.
- the number average molecular weight (Mn) in the present invention means a number average molecular weight (Mn) in terms of standard polystyrene measured by gel permeation chromatography (GPC) using tetrahydrofuran as a mobile phase.
- the molecular weight of the resulting oxyalkylene polymer (P) is in a favorable range in terms of viscosity and mechanical properties of the cured product.
- the hydroxyl group-containing polymer (pP-1) is a hydroxyl group-containing polymer (pP-1) obtained by ring-opening polymerization of an alkylene oxide to a compound having an active hydrogen atom in the presence of a double metal cyanide complex.
- the amount of the double metal cyanide complex used to obtain the hydroxyl group-containing polymer (pP) is preferably 10 to 300 ppm.
- the double metal cyanide complex is preferably a double metal cyanide complex having an organic ligand.
- the organic ligand is preferably an ether ligand or an alcohol ligand.
- Specific examples of the ether-based ligand include ethylene glycol dimethyl ether (glyme), diethylene glycol dimethyl ether (diglyme), and triethylene glycol dimethyl ether.
- alcohol-based ligands include tert-butylaminoreconore, n-butinoreanoreconole, sec-butinoreanoreconole, iso-butinoreanoreconole Tert-pentenoreanoreconole, iso-pentinoleanoreconole, ethyleneglycolenomono-tert-butyl ether.
- Zinc hexanocobaltate is particularly preferred as a complex metal cyanide complex!
- the compound having an active hydrogen atom is preferably an organic compound having an active hydrogen atom, more preferably a compound having a hydroxy group or an amino group; and particularly preferably a compound having 4 to 4 hydroxy groups.
- the compound having an active hydrogen atom one type may be used, or two or more types may be used.
- organic compound having an active hydrogen atom examples include ethylene glycol, propylene glycol, dipropylene glycol, butanediol, hexamethylene glycol, hydrogenated bisphenol A, neopentyl glycol, polybutadiene glycol, jetylene glycol, triethylene.
- Ganolenoles polyethylene glycolenoles, alcoholinoreconoles, methanolinoreconoles, glycerin, trimethylonoremethane, trimethylonorepropane, pentaerythritol, etc .; polyoxypropylene mononore, poly Oxypropylene dionole, polyoxypropylene trioneol, poly-xoxyethylene mono-nore, polyoxyethylene diol, and polyoxyethylene trio Polymeric alcohols M N300 ⁇ 1500 selected from the group consisting of Le and the like.
- the compound having an active hydrogen atom may be used singly or in combination of two or more.
- a compound having two or more kinds of active hydrogen atoms it is preferable to use a polymeric alcohol having two hydroxy groups and a polymeric alcohol having three hydroxy groups.
- the hydroxyl group-containing polymer (pP-1) when used, after purifying and removing the double metal cyanide complex contained as a polymerization residue, it is subjected to a urethanization reaction with the isocyanate group-containing compound (U). It is also possible to urethanate the compound (U) with an isocyanate group without purifying and removing the complex metal cyanide complex.
- the complex metal cyanide complex is considered to function not only as a catalyst for ring-opening polymerization but also as a catalyst for urethanization reaction.
- the hydroxyl group-containing polymer (pP-1) is purified without removing the complex metal cyanide contained in the hydroxyl group-containing polymer (pP-1) as a polymerization residue.
- the isocyanate group-containing compound (U) are subjected to a urethanization reaction, the effect of the urethanation reaction proceeding efficiently can be obtained.
- the isocyanate group-containing compound (U) used in the present invention is a compound represented by the following general formula (1).
- a in the formula is an integer of 1 to 3.
- R 1 is a monovalent organic group having 1 to 20 carbon atoms which may have a substituent.
- R 1 is preferably an alkyl group having a carbon number of 8 or less, a fluoroalkyl group having a carbon number of 8 or less, or a phenyl group, a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, or a cyclohexyl group. More preferably, it is a group or a phenyl group.
- the plurality of R 1 may be the same or different from each other! /, Even if good records,.
- X 1 represents an alkoxy group having 1 to 6 carbon atoms. Specific examples include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, and a hexyloxy group. A methoxy group is particularly preferred. Incidentally, when the X 1 there are a plurality in the same molecule, its these plurality of X 1 are good Le, be either the same or different les.
- Q 1 represents a divalent organic group having 1 to 20 carbon atoms. From the viewpoint of easy availability, an alkylene group having 1 to 10 carbon atoms is preferable, and a trimethylene group and a methylene group are more preferable.
- the isocyanate group-containing compound (U) is preferably an isocyanate group-containing compound (U-1) in which a is 3 in the above formula (1)!
- the isocyanate group-containing compound (U-1) is represented by the following general formula (2).
- X 1 and Q 1 in formula (2) are the same as those in formula (1), including preferred embodiments thereof.
- isocyanate group-containing compound (U-1) examples include 1 isocyanatomethyl Limethoxysilane, 2 Isocyanate Ethylene Retrimethoxysilane, 3 Isocyanate Propyltrimethoxysilane, 3-Isocyanate Butyltrimethoxysilane, 3-Isocyanate Pentinoletrimethoxysilane, 1 Isocyanate Methylinotritri Examples thereof include ethoxysilane, 2-isocyanate tert-triethoxysilane, 3-isocyanate propyltriethoxysilane, 1-isocyanate propyltrimethoxysilane, and 1-isocyanate propyltriethoxysilane.
- isocyanate group-containing compound (U-2) examples include 1 isocyanate methyldimethoxymethylsilane.
- the divalent organic tin catalyst (S) is more preferably a dialkyl tin ( ⁇ ) which is preferably a divalent tin organic carboxylate.
- ⁇ dialkyl tin
- Specific examples include tin bis (2-ethylhexanoate), tin di (n-octylate), tin dodecanoate, tin ditetradecanoate, tin dihexadecanoate, tin dioctadecanoate, tin dinaphthenate, bis (2 ethyl decanoic acid) tin, bis (9-methyl-2-propylpyrudecanoic acid) tin, bis (8 methyl-2-propyldecanoic acid) tin, bis (7 methyl-
- 2-propyl decanoate) tin bis (6-methyl-2-propyldecanoate) tin, bis (5-methyl-2-propyldecanoate) tin, bis (4-methyl-2-propyldecanoate) tin, bis (
- Methyl-2-propyldecanoic acid) tin bis (2 propylnonadecanoic acid) tin, bis (2 butyloctanoic acid) tin, bis (2-hexyldecanoic acid) tin, bis (2-decyltetradecanoic acid) tin, Bis (2-octyldodecanoic acid) tin is mentioned.
- the divalent organotin catalyst (S) may be used alone or in combination of two or more.
- bis (2-ethylhexanoate) tin or di (n-octylate) tin is preferred! /.
- the production method of the present invention includes a step of subjecting the hydroxyl group-containing polymer (pP) and the isocyanate group-containing compound (U) to a urethanization reaction in the presence of a divalent organotin catalyst (S).
- a divalent organotin catalyst (S) For example, after adding the organotin catalyst (S) to the hydroxyl group-containing polymer (pP) and stirring, the isocyanate group-containing compound (U) is added, and the urethanation reaction is carried out while maintaining the predetermined reaction temperature.
- the reaction temperature of the urethanization reaction is preferably 20 to 200 ° C, 50 to 50, and particularly preferably 150 ° C.
- the urethanization reaction is preferably performed in an inert gas atmosphere, preferably in a nitrogen gas atmosphere.
- the urethanization reaction time is preferably 1 to 15 hours.
- an oxyalkylene polymer (P) is obtained. Specifically, an “oxyalkylene polymer (P) in which a reactive carbon group is introduced into a polyoxyalkylene chain of a hydroxyl group-containing polymer (pP) via a urethane bond” is obtained.
- the reactive cage group is a group corresponding to “one S —X 1 ) (—R 1 )” of the isocyanate group-containing compound (U).
- a polymer (P) is obtained.
- the oxyalkylene polymer (P) has a reactive carbon group as a substituent at the side chain or terminal. It is more preferable that the substituent at the terminal has a reactive cage group.
- the amount of the organotin catalyst (S) used is preferably 5 ppm to 150 ppm, preferably 5 to OOppm based on the hydroxyl group-containing polymer (pP) (mass basis).
- the amount of the organotin catalyst (S) used is not less than the lower limit of the above range, the urethanization reaction does not proceed.
- the organotin catalyst (S) is preferably 1-50 ppm; more preferably 20-20 ppm.
- the organotin catalyst (S) is preferably 20 to 150 ppm, more preferably 20 to 1 OOppm! / ⁇ .
- the isocyanate group-containing compound (U ) Isocyanate group molar ratio (isocyanate group / hydroxyl group) (0.80-1.10 force ⁇ preferably, 0.85--;
- a divalent organotin catalyst (S) as a catalyst for the urethane reaction of the hydroxyl group-containing polymer (pP) and the isocyanate group-containing compound (U)
- storage is achieved.
- Excellent stability “Oxyalkylene polymer (P) having a reactive silicon group via a urethane bond in the polyoxyalkylene chain”.
- the resulting oxyalkylene polymer (P) has good curability, and in particular, an isocyanate group-containing compound (U-l) in which a is 3 in the above formula (1), or a in the above formula (1) Is 2 and Q 1 is a methylene group.
- the oxyalkylene polymer (P) obtained using the isocyanate group-containing compound (U-2) is excellent in rapid curing.
- the divalent organotin catalyst (S) has been known as a curing catalyst for oxyalkylene polymers having a reactive silicon group, along with organotin (IV) compounds such as dibutyltin diacetate.
- organotin (IV) compounds such as dibutyltin diacetate.
- the storage stability of the oxyalkylene polymer (P) is improved. That is a surprising effect. The reason is not clear, but it is presumed that the divalent organotin catalyst (S) is involved in being a catalyst that is relatively easily deactivated among organometallic catalysts.
- the oxyalkylene polymer (P) obtained by the production method of the present invention is suitably used as a component of the curable composition.
- the oxyalkylene polymer (P) can be used without removing the divalent organotin catalyst (S) contained as a reaction catalyst residue.
- the curable composition contains a curing catalyst, filler, plastic An agent, an adhesion-imparting agent, a dehydrating agent, a thixotropic agent, an anti-aging agent, and the like may be appropriately contained.
- a component having a reactive silicon group may be used in combination.
- the curable composition may be a one-component type that contains a curing catalyst in advance and is stored under dehydrating conditions, and reacts with moisture in the atmosphere at the time of curing. Also, the curing catalyst is mixed immediately before curing. In addition, it may be a two-component type that is cured by moisture during blending and in the atmosphere.
- the curing catalyst is a compound that promotes a hydrolysis reaction and / or a crosslinking reaction in the reactive silicon group of the oxyalkylene polymer (P).
- Specific examples include organotin (IV) carboxylates such as dibutyltin diacetate and dibutyltin dilaurate; (n-C H)
- Sulfur-containing organotin such as H) Sn (SCH COO (n-C H)) and (n—C H) SnS
- acac represents acetylacetonate ligand, and ⁇ C (CH) CHC ⁇ C H is ethylacetoate
- Examples thereof include tetravalent tin compounds such as Sn—bond-containing organic tin compounds.
- bis (2-ethylhexanoic acid) tin, di (n-octylic acid) tin, dinaphthenic acid tin, And divalent tin carboxylates such as tin distearate; acidic compounds such as octylic acid, phosphoric acid, p-toluenesulfonic acid, and phthalic acid; fats such as butyramine, hexylamine, octylamine, decylamine, and laurylamine Aliphatic monoamines; Aliphatic diamines such as ethylenediamine and hexanediamine; Aliphatic polyamines such as diethylenetriamine, triethylenetetramine, and tetraethylenepentamine; Heterocyclic amines such as piperidine and piperazine; Aromatic amines such as direnamine; Alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine; Trialkylamines such as such as
- organotin (IV) compounds having different activities or a combination of an organotin (IV) compound and an amine compound is preferable!
- the curing catalyst is preferably used in an amount of 0.001 to 10 parts by mass with respect to 100 parts by mass of the oxyalkylene polymer (IV).
- amount of the curing catalyst used 0.001 part by mass or more, the curing rate of the curable composition can be effectively accelerated, and by making it 10 parts by mass or less, deterioration of the mechanical properties and weather resistance can be prevented.
- the amount of the curing catalyst used is the oxyalkylene polymer.
- the filler examples include calcium carbonate surface-treated with a fatty acid or a resin acid-based organic substance, colloidal carbonic acid calcium having an average particle size of 1 ⁇ m or less obtained by further pulverizing the calcium carbonate, and average particles produced by a precipitation method. Diameter;!
- the specific gravity of the curable composition can be significantly reduced.
- the amount used is preferably oxyalkylene polymer (P) (total including other curing components combined) of 100 parts by mass. -250 mass parts is preferable. Only one type of filler may be used, or two or more types may be used in combination.
- plasticizer known plasticizers can be used.
- phthalates such as dioctyl phthalate, dibutyl phthalate, and butyl benzyl phthalate
- dioctyl adipate bis (2-methylnoel) succinate
- Aliphatic carboxylic acid esters such as dibutyl sebacate and butyrate oleate
- alcohol esters such as pentaerythritol ester
- phosphate esters such as trioctyl phosphate and tricresyl phosphate
- epoxidized soybean oil, 4, 5—Epoxy plasticizers such as dioctyl epoxy hexahydrophthalate and benzil epoxy stearate
- Chlorinated paraffins Polyester plasticizers such as polyesters obtained by reacting dibasic acids with divalent alcohols
- Polyethers such as polyoxypropylene glycol and its derivatives Styrene oligomers such as poly- ⁇ -methylstyren
- the amount used is preferably 1000 parts by mass or less with respect to 100 parts by mass of the oxyalkylene polymer ( ⁇ ) (when other curing components are included).
- the curable composition is used for applications such as adhesives, it is better not to use a plasticizer.
- the amount of bleed out from the cured product (liquid component) can be reduced, and coating film contamination is preferred.
- adhesion-imparting agent By using an adhesion-imparting agent, it is possible to improve the adhesion between the curable composition and the substrate.
- adhesion-imparting agent include so-called silane coupling agents such as (meth) ataryloxy group-containing silanes, amino group-containing silanes, mercapto group-containing silanes, epoxy group-containing silanes, and carboxy group-containing silanes.
- silane coupling agents such as (meth) ataryloxy group-containing silanes, amino group-containing silanes, mercapto group-containing silanes, epoxy group-containing silanes, and carboxy group-containing silanes.
- these adhesion promoters may be used alone or in combination of two or more.
- the amount used is 30 parts by mass or less with respect to 100 parts by mass of the oxyalkylene polymer (P) (inclusive of other curing components). preferable. If the amount of the adhesion-imparting agent used exceeds 30 parts by mass, the curable composition may be hard and the flexibility may be too small.
- an epoxy resin and, if desired, an epoxy resin and an epoxy resin curing agent may be used in combination.
- an epoxy resin is added to the curable composition, the amount used is 100 parts by mass with respect to 100 parts by mass of the oxyalkylene polymer (P) (when other curing components are included) The following is preferred. If the amount of the epoxy resin used exceeds 100 parts by mass, the resulting cured product may have high hardness and low flexibility.
- the storage stability of the curable composition can be enhanced.
- a dehydrating agent when the curable composition is a so-called one-component composition, that is, a composition in which the curing component is cured by moisture in the atmosphere just by being put out from the sealed container to the atmosphere. .
- dehydrating agents include alkyl orthoformates; ortho orthoacetates; hydrolyzable organosilicon compounds such as methyltrimethoxysilane, butyltrimethoxysilane, tetramethoxysilane, and tetraethoxysilane; hydrolyzable organotitanium compounds Etc.
- the amount used is an oxyalkylene polymer ( P) (Total of other curing components when combined) 30 parts by mass or less is preferable with respect to 100 parts by mass. If the amount of the dehydrating agent used exceeds 30 parts by mass, curing of the curable composition may be too slow.
- P oxyalkylene polymer
- Sagging can be prevented by adding a thixotropic agent.
- the thixotropic agent is not particularly limited, and examples thereof include hydrogenated castor oil and fatty acid amide.
- the amount of the desired sag-preventing property can be appropriately selected.
- the antiaging agent is not particularly limited, and an additive selected from the group consisting of an antioxidant, an ultraviolet absorber, a light stabilizer and the like which are generally added to a polyurethane resin or the like can be used.
- anti-aging agents include hindered amine, benzotriazole, benzophenone, benzoate, cyanoacrylate, acrylate, hindered phenol, phosphorus, and sulfur. From these, a preferable compound can be appropriately selected and added to the curable composition of the present invention.
- additives can be appropriately added to the curable composition.
- inorganic pigments such as iron oxide, chromium oxide, and titanium oxide
- organic pigments such as phthalocyanine blue and phthalocyanine green
- fungicides such as fungicides, and foaming agents
- the curable composition containing the oxyalkylene polymer (P), which is suitable for the present invention, is used as a sealing-sealing cured composition, waterproofing material, adhesive, and coating agent as a coating-sealing cured composition. Useful.
- the isocyanate group-containing compound (U) contains an oxyalkylene polymer (P) obtained by using an isocyanate group-containing compound compound (U-1) in which a is 3 in the above formula (1).
- the curable composition is excellent in rapid curability and is useful as an adhesive.
- Example [0037] The ability to explain the present invention in more detail below using examples The present invention is not limited to these examples.
- Polyoxyalkylene diol (Mn 10000, hydroxyl value) is obtained by ring-opening polymerization of propylene oxide to polyoxypropylene diol (MnlOOO) in the presence of zinc hexocyanobaltate catalyst whose ligand is tert-butyl alcohol. 11. 2) (Hydroxyl-containing polymer (pPl)) was obtained. The total amount of Co and Zn in the polymer was about 40 ppm.
- a pressure-resistant reactor (3000 g of a hydroxyl group-containing polymer (pPl) was placed in an internal volume of 5 U and dehydrated under reduced pressure while maintaining the internal temperature at 110 ° C.
- the atmosphere in the reactor was replaced with nitrogen gas, While maintaining the internal temperature at 50 ° C., 0 ⁇ 15 g (about 50 ppm with respect to pPl) of bis (2-ethylhexanoate) tin (S1) was added as a catalyst, and after stirring, NCO / OH was 0 ⁇ 125 ⁇ 2 g of the isocyanate group-containing compound (U1) (purity 95%) represented by the following formula (3) was added so that 97 was obtained.
- Oxyalkylene polymers (P2, P3, P4) were produced with the formulations shown in Table 1 and using a conventional urethane polymerization catalyst.
- Example 4 In Example 1,! /, Don't add bis (2-ethylhexanoic acid) tin (S 1)! /, The same process as in Example 1 was carried out. The urethanization reaction of the compound (pPl) and the isocyanate group-containing compound (U1) did not occur.
- a curable composition was obtained by thoroughly mixing 0.75 g of a reaction product with dioctyl phthalate, product name: No918, manufactured by Sankyo Gosei Co., Ltd. The obtained curable composition was put into a stainless steel container, bubbled by flowing nitrogen, then left in an oven at 100 ° C., and cured for 30 minutes to obtain a cured product having a thickness of 9 mm.
- the cured body was cooled at room temperature for about 15 minutes, and the hardness of the surface of the cured body was measured.
- the hardness was measured by measuring five points using a digital hardness meter DD2-C type (manufactured by Kobunshi Keiki Co., Ltd.) and calculating the average value. Table 1 shows the measurement results.
- pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate] (product name: Irganox 1010, manufactured by Ciba Specialty Chemicals) ) was added to 0.5 mass%, and the sample that had been heated and uniformly dissolved was transferred to a 100 ml glass container, and a storage stability test was conducted.
- the test first measures the initial viscosity (25 ° C) of the sample, then warms the sample to 80 ° C and holds it at 80 ° C for 1 week, 2 weeks, 3 weeks, 4 weeks Later, the viscosity of each sample (viscosity after storage) was measured.
- the viscosity was measured using an E-type viscometer (product name: VISCON IC EHD type, manufactured by Tokimec, rotor No. 4). Viscosity was measured at 25 ° C, and a part of the sample was removed from the sample stored at 80 ° C and cooled to 25 ° C. The one used for viscosity measurement.
- the oxyalkylene polymer (P1) produced in Example 1 which is useful for the present invention, has a cured product with the same hardness as Comparative Examples 1 to 3, and storage. Stability is greatly improved. From this, it was recognized that the production stability of the oxyalkylene polymer (P) using the divalent organotin catalyst (S) of the present invention can greatly improve the storage stability without impairing the curability. . [0044] Hereinafter, an example in which a curable composition was produced using the oxyalkylene polymer (P1) produced in Example 1 will be described.
- the tensile properties of the obtained curable composition were measured in the same manner as in Production Example 1, and good physical properties were obtained.
- oxyalkylene polymer having better storage stability than in the prior art.
- the oxyalkylene polymer according to the present invention is suitably applicable for use as an adhesive, a coating agent, or a sealing material.
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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)
- General Chemical & Material Sciences (AREA)
- Polyethers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008526784A JP5470847B2 (ja) | 2006-07-25 | 2007-07-24 | オキシアルキレン重合体の製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2006-201938 | 2006-07-25 | ||
| JP2006201938 | 2006-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008013182A1 true WO2008013182A1 (fr) | 2008-01-31 |
Family
ID=38981493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/064526 Ceased WO2008013182A1 (fr) | 2006-07-25 | 2007-07-24 | Procédé de production d'un polymère d'oxyalkylène |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5470847B2 (ja) |
| KR (1) | KR20090035531A (ja) |
| CN (1) | CN101490134A (ja) |
| TW (1) | TW200813123A (ja) |
| WO (1) | WO2008013182A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008146857A1 (ja) * | 2007-05-29 | 2008-12-04 | Asahi Glass Company, Limited | オキシアルキレン重合体の製造方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106349472A (zh) * | 2016-08-30 | 2017-01-25 | 江苏创景科技有限公司 | α型硅烷封端聚醚的合成方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559669A (en) * | 1978-07-07 | 1980-01-23 | Kanegafuchi Chem Ind Co Ltd | Curable composition |
| JPH0347825A (ja) * | 1988-12-09 | 1991-02-28 | Asahi Glass Co Ltd | 湿気硬化性樹脂組成物 |
| JPH0912860A (ja) * | 1995-06-29 | 1997-01-14 | Asahi Glass Co Ltd | 室温硬化性組成物 |
| JPH10245482A (ja) * | 1997-03-03 | 1998-09-14 | Konishi Kk | シリコーン系樹脂組成物 |
| JP2003089742A (ja) * | 2001-09-19 | 2003-03-28 | Auto Kagaku Kogyo Kk | 硬化性組成物及びシーリング材組成物 |
| JP2004189946A (ja) * | 2002-12-12 | 2004-07-08 | Nitto Kasei Co Ltd | シリル基含有有機重合体硬化性組成物 |
| JP2004292517A (ja) * | 2003-03-26 | 2004-10-21 | Aica Kogyo Co Ltd | 湿気硬化性組成物 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3776428B2 (ja) * | 2002-12-27 | 2006-05-17 | 株式会社加平 | ポリウレタン発泡体シート及びそれを用いた積層体シートの製造方法 |
| JP5091386B2 (ja) * | 2003-07-16 | 2012-12-05 | オート化学工業株式会社 | 硬化性組成物及びシーリング材組成物 |
| JP4475090B2 (ja) * | 2004-10-18 | 2010-06-09 | 横浜ゴム株式会社 | 2液硬化型ポリウレタン樹脂組成物 |
-
2007
- 2007-07-24 JP JP2008526784A patent/JP5470847B2/ja not_active Expired - Fee Related
- 2007-07-24 CN CNA2007800273435A patent/CN101490134A/zh active Pending
- 2007-07-24 WO PCT/JP2007/064526 patent/WO2008013182A1/ja not_active Ceased
- 2007-07-24 KR KR1020097001154A patent/KR20090035531A/ko not_active Withdrawn
- 2007-07-25 TW TW096127058A patent/TW200813123A/zh unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559669A (en) * | 1978-07-07 | 1980-01-23 | Kanegafuchi Chem Ind Co Ltd | Curable composition |
| JPH0347825A (ja) * | 1988-12-09 | 1991-02-28 | Asahi Glass Co Ltd | 湿気硬化性樹脂組成物 |
| JPH0912860A (ja) * | 1995-06-29 | 1997-01-14 | Asahi Glass Co Ltd | 室温硬化性組成物 |
| JPH10245482A (ja) * | 1997-03-03 | 1998-09-14 | Konishi Kk | シリコーン系樹脂組成物 |
| JP2003089742A (ja) * | 2001-09-19 | 2003-03-28 | Auto Kagaku Kogyo Kk | 硬化性組成物及びシーリング材組成物 |
| JP2004189946A (ja) * | 2002-12-12 | 2004-07-08 | Nitto Kasei Co Ltd | シリル基含有有機重合体硬化性組成物 |
| JP2004292517A (ja) * | 2003-03-26 | 2004-10-21 | Aica Kogyo Co Ltd | 湿気硬化性組成物 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008146857A1 (ja) * | 2007-05-29 | 2008-12-04 | Asahi Glass Company, Limited | オキシアルキレン重合体の製造方法 |
| JP5338661B2 (ja) * | 2007-05-29 | 2013-11-13 | 旭硝子株式会社 | オキシアルキレン重合体の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090035531A (ko) | 2009-04-09 |
| JPWO2008013182A1 (ja) | 2009-12-17 |
| TW200813123A (en) | 2008-03-16 |
| CN101490134A (zh) | 2009-07-22 |
| JP5470847B2 (ja) | 2014-04-16 |
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