WO2010052860A1 - ポリウレタンフォーム用発泡性組成物及びポリウレタンフォーム - Google Patents
ポリウレタンフォーム用発泡性組成物及びポリウレタンフォーム Download PDFInfo
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- WO2010052860A1 WO2010052860A1 PCT/JP2009/005721 JP2009005721W WO2010052860A1 WO 2010052860 A1 WO2010052860 A1 WO 2010052860A1 JP 2009005721 W JP2009005721 W JP 2009005721W WO 2010052860 A1 WO2010052860 A1 WO 2010052860A1
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- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4027—Mixtures of compounds of group C08G18/54 with other macromolecular compounds
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
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- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
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- 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
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
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- 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
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
- C08G18/5027—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups directly linked to carbocyclic groups
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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
- C08G18/28—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
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5033—Polyethers having heteroatoms other than oxygen having nitrogen containing carbocyclic groups
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- 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
- C08G18/54—Polycondensates of aldehydes
- C08G18/546—Oxyalkylated polycondensates of aldehydes
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- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
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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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
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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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Definitions
- the present invention relates to a foamable composition for polyurethane foam and polyurethane foam, and more particularly to a technique for advantageously improving the heat insulation performance and dimensional stability of a polyurethane foam produced by using carbon dioxide for foaming. It is.
- polyurethane foam has been used mainly as a thermal insulation member for insulation, such as building interior and exterior wall materials and panels, insulation for metal siding and electric refrigerators, buildings and condominiums. -Practical use for heat insulation and dew condensation prevention for enclosures, walls, ceilings, roofs, etc. for freezers, and for infusion pipes.
- polyurethane foam generally comprises a polyol compound liquid (premix liquid) in which a polyol component is further blended with a foaming agent and, if necessary, various auxiliary agents such as a catalyst, a foam stabilizer and a flame retardant, and an isocyanate component.
- a foamable composition for polyurethane foam which is foamed and cured by a method such as a slab foaming method, an injection foaming method, a spray foaming method, or a laminate continuous foaming method. It is manufactured.
- the foamable composition for polyurethane foams used therein has a hydrofluorocarbon-based foaming agent (for example, HFC) which is an alternative fluorocarbon with little or no destruction of the ozone layer as a foaming agent due to the environmental problem of destruction of the stratospheric ozone layer.
- HFC hydrofluorocarbon-based foaming agent
- -245fa, HFC-365mfc, etc. are used.
- carbon dioxide carbon dioxide
- foams that are manufactured using are being investigated.
- Patent Documents 1 and 2 disclose a polyurethane foam produced by a so-called “water foaming method” using carbon dioxide generated by a chemical reaction between a polyisocyanate component and water as a foaming agent.
- Patent Document 3 discloses a polyurethane produced by using, as a foaming agent, carbon dioxide generated by a reaction between water and a polyisocyanate component, and carbon dioxide in a supercritical state, a subcritical state, or a liquid state. The form is revealed.
- polyurethane foams produced using such carbon dioxide as a foaming agent are basically inferior in heat insulation performance to polyurethane foams produced by other foaming methods, and the heat insulation performance is deteriorated over time. It was a problem that deteriorated and lacked long-term stability.
- water as a blowing agent source for generating carbon dioxide and carbon dioxide in a subcritical state or a supercritical state are all used to reduce the viscosity of the polyol compound liquid compared to other solvent-based blowing agents. Since the contribution is extremely small, when adopting carbon dioxide as a foaming agent, the polyol component itself has a low viscosity, or a low viscosity polyol such as a polyether polyol is used in combination to reduce the viscosity. It is necessary to lower the viscosity of the blended liquid to such an extent that it can be practically used.
- Patent Documents 4 to 6 propose phenol resin polyols obtained by adding an alkylene oxide to a phenol resin.
- no examination is made about the above-mentioned problem in a polyurethane foam produced using carbon dioxide as a foaming agent, that is, a decrease in heat insulation performance.
- the problem that the dimensional stability of the polyurethane foam to be produced is insufficient is also inherent.
- Patent Document 7 in a polyol composition for rigid polyurethane foam for water foaming, as one of polyol compounds, a tertiary amino group-containing polyether polyol (aromatic fragrance) obtained by adding an alkylene oxide to an aromatic diamine. It has been clarified that a rigid polyurethane foam excellent in heat insulation and strength can be produced by using a group amine-based polyol). However, even when such a polyol compound is used, the above heat insulation performance is not sufficient, the flame retardance is lacking, and the problem that the heat insulation performance deteriorates with time is still inherent. .
- a tertiary amino group-containing polyether polyol aromatic fragrance
- the present invention has been made in the background of such circumstances, and the problem to be solved is the heat insulation performance of polyurethane foam produced using carbon dioxide as a foaming agent and To provide a foamable composition for polyurethane foam that can advantageously improve long-term stability and further dimensional stability, and to provide excellent heat insulation performance by foaming and curing the foamable composition for polyurethane foam.
- the object is to provide a polyurethane foam to be realized.
- a polyol component a phenol resin polyol obtained by adding an alkylene oxide to a novolac-type phenol resin, and an aromatic diamine with an alkylene
- the thermal insulation performance and dimensional stability of the resulting polyurethane foam are effectively improved, and excellent thermal insulation performance can be sustained over a long period of time.
- the present invention has been completed.
- the present invention relates to a foamable composition used for producing a polyurethane foam obtained by reacting and foaming a polyol component and a polyisocyanate component, and carbon dioxide is used for the foaming, and the polyol
- a phenol resin polyol obtained by adding an alkylene oxide to a novolak-type phenol resin and an aromatic amine polyol obtained by adding an alkylene oxide to an aromatic diamine, the total amount of which is the polyol component
- the gist of the present invention is a foamable composition for polyurethane foam, which is used at a ratio of 60% by mass or more.
- carbon dioxide generated by the reaction of water and polyisocyanate is advantageously employed as the carbon dioxide.
- the novolak type phenolic resin contains free phenols in a proportion of 1 to 50% by mass, more preferably 5 to 35% by mass, still more preferably 10 to 30% by mass. ing.
- tolylenediamine is used as the aromatic diamine.
- ethylene oxide, propylene oxide or these as the alkylene oxide added to the novolac type phenol resin or the aromatic diamine is employed.
- the alkylene oxide added to the novolak type phenol resin is composed of ethylene oxide or a combination of 50% by mass or more of ethylene oxide and 50% by mass or less of propylene oxide. It is desirable that 10 to 100% by mass of the alkylene oxide to be added to the novolak type phenolic resin or the aromatic diamine is propylene oxide.
- the phenol resin-based polyol and the aromatic amine-based polyol are each 30% by mass of the polyol component. As mentioned above, it will contain in the ratio which occupies 40 mass% or more especially. Further, it is desirable that the phenol resin polyol and the aromatic amine polyol are contained in a mass ratio of 3/7 to 7/3.
- the thermal conductivity exhibits a characteristic of less than 0.022 W / (m ⁇ K).
- the foamable composition for polyurethane foam according to the present invention carbon dioxide is used as a foaming agent, but a predetermined phenol resin polyol and aromatic amine polyol are used in combination as a polyol component.
- the thermal conductivity (initial value) of the resulting polyurethane foam is even more advantageously lower than the thermal conductivity (initial value) of conventional polyurethane foam using carbon dioxide as a foaming agent, and its heat insulation performance is effective. It can be improved.
- the increase in thermal conductivity over time can be further advantageously suppressed, so that excellent heat insulation performance can be maintained over a long period of time.
- the polyurethane foam thus obtained has excellent flame retardancy and excellent dimensional stability, and can be advantageously applied to various uses.
- the polyurethane foam according to the present invention since it is formed by using the foamable composition for polyurethane foam as described above, the same effect as described above can be enjoyed, and the heat insulation performance and its long-term stability. In addition, dimensional stability and flame retardancy can be improved more advantageously.
- At least carbon dioxide is used for foaming, and a phenol resin polyol and an aromatic amine polyol are used as polyol components.
- the phenol resin-based polyol used as one of the polyol components in the present invention is obtained by adding alkylene oxide to a novolac type phenol resin.
- the novolak type phenol resin used for the preparation of such a phenol resin-based polyol is advantageously 1 to 50% by mass, preferably 5 to 35% by mass of free phenols from the viewpoint of lowering the viscosity. More preferably, those containing 10 to 30% by mass are employed. This is because if the content of free phenols is less than 1% by mass, it is difficult to effectively reduce the viscosity and the intended foamable composition for polyurethane foam may not be used. This is because, on the contrary, if it exceeds 50% by mass, the polyurethane foam becomes too soft and tends to deteriorate the moldability.
- Such a novolac type phenol resin is prepared by blending, for example, phenols and aldehydes in a ratio of 0.3 to 1.0 mol with respect to 1 mol of phenols, and then acid catalyst. Then, after the reaction is carried out under predetermined reaction conditions (temperature and time), a dehydration treatment under reduced pressure is performed as necessary, so that it is advantageously produced as an initial condensate of a novolac type phenol resin.
- the initial condensate is a phenol resin having a relatively low molecular weight, and is a condensate having a phenol skeleton of about 2 to 10 or a mixture of unreacted phenols in one molecule.
- the method for producing such novolak-type phenolic resin is not limited to the above-described method, and a predetermined proportion of the above-mentioned free phenols is present in the resulting novolak-type phenolic resin. It can be produced by appropriately setting reaction conditions and reaction environment (for example, normal pressure, reduced pressure, pressurization, presence / absence of coexistence of inert gas, stepwise or sequential reaction, etc.). Furthermore, it is also possible to adjust the content ratio of free phenols as described above by adding phenols separately to the condensate after completion of the reaction, if necessary.
- the phenols used in the production of the novolak type phenol resin are not particularly limited, and phenol is generally adopted.
- phenol is generally adopted.
- cresol, ethylphenol, xylenol, pt can be used as necessary.
- -One kind of alkylphenols such as butylphenol, octylphenol, nonylphenol, dodecylphenol, p-phenylphenol, or a mixture of two or more kinds, or one or more of such alkylphenols Phenol can be used in combination.
- halogenated phenols such as m-chlorophenol and o-bromophenol
- polyphenols such as resorcinol, catechol, hydroquinone and phloroglicinol, bisphenol A [2,2-bis (4-hydroxyphenyl) propane]
- Purified residue of bisphenol such as bisphenol F (4,4'-dihydroxydiphenylmethane), resorcinol, catechol, bisphenol A, bisphenol F, etc., one of ⁇ -naphthol, ⁇ -naphthol, ⁇ -hydroxyanthracene
- ⁇ -naphthol, ⁇ -naphthol, ⁇ -hydroxyanthracene Can be used alone or in admixture of two or more, or one or more of them can be used in combination with phenol or alkylphenol.
- the aldehydes to be reacted with the phenols are not particularly limited, and generally one or both of formalin and paraformaldehyde is used, but other formaldehydes (if necessary)
- formalin and paraformaldehyde are used, but other formaldehydes (if necessary)
- trioxane, tetraoxane, polyoxymethylene, etc. can be used alone or in combination.
- oxalic acid is suitable as the acid catalyst used in the production of the novolak type phenol resin, but in addition, organic sulfonic acid (eg, p-toluenesulfonic acid), organic carboxylic acid (eg, acetic acid, etc.) ) Salts of divalent metals (eg, magnesium, zinc, lead, etc.), chlorides of divalent metals, oxides of divalent metals, inorganic acids (eg, hydrochloric acid, sulfuric acid, etc.) may be used alone, Of course, two or more of these may be used in combination.
- organic sulfonic acid eg, p-toluenesulfonic acid
- organic carboxylic acid eg, acetic acid, etc.
- Salts of divalent metals eg, magnesium, zinc, lead, etc.
- chlorides of divalent metals eg, oxides of divalent metals
- inorganic acids eg, hydrochloric acid, sulfuric acid
- the phenol resin-based polyol used as one of the polyol components in the present invention is obtained by subjecting the novolak type phenol resin produced as described above to an addition reaction of alkylene oxide in the presence of a basic catalyst. Accordingly, a phenolic resin-based polyol in which an alkylene oxide is added to a phenolic hydroxyl group portion of a novolak type phenolic resin, which preferably contains free phenols, and the phenolic hydroxyl group is converted into an alcoholic hydroxyl group. It becomes.
- the phenol resin is modified and the hydrophilicity of the polyol component is further improved.
- the phenol resin polyol is used in a foaming method using carbon dioxide as a foaming agent. Not only is it suitable as a polyol to be used, it also has excellent mixing properties with the polyisocyanate component described below.
- the phenol resin polyol has a hydroxyl value of 100 to 450 mgKOH / g, preferably 200 to 450 mgKOH / g, more preferably 250 by appropriately setting the blending amount of alkylene oxide. ⁇ 350 mg KOH / g. This is because if the hydroxyl value is less than 100 mgKOH / g, the foam obtained by using this tends to be too soft, the moldability tends to be deteriorated, and the intended polyurethane foam tends not to be obtained. In addition, when the hydroxyl value exceeds 450 gKOH / g, the viscosity is not sufficiently lowered, and the miscibility with the polyisocyanate component tends to deteriorate.
- the viscosity of the phenolic resin polyol varies in accordance with the hydroxyl value, but the viscosity of the phenolic resin polyol used in the present invention is in the range of 500 to 50000 mPa ⁇ s / 25 ° C. .
- examples of the alkylene oxide used in the production of the phenol resin-based polyol include ethylene oxide, propylene oxide, butylene oxide, and the like.
- ethylene oxide, propylene oxide, and a combination thereof are particularly preferably employed, and among them, from the viewpoint of further improving the heat insulating performance of the foam, It is advantageous that the blending amount of oxide is 50 to 100% by weight, preferably 75 to 100% by weight, especially 100% by weight (ethylene oxide alone) with respect to the total blending amount of ethylene oxide and propylene oxide.
- the blending amount of propylene oxide is 10 to 100% by weight, preferably 25 to 100% by weight, especially 100% by weight (propylene oxide alone) of the whole alkylene oxide.
- the blending ratio of the alkylene oxide is appropriately selected within a range of 1 to 20 times equivalent to the phenolic hydroxyl group of the novolak type phenol resin.
- Examples of the basic catalyst used in the production of the phenol resin polyol in other words, the addition reaction of the novolak type phenol resin and the alkylene oxide include sodium hydroxide, potassium hydroxide, and barium hydroxide.
- An alkaline catalyst such as calcium hydroxide can be suitably employed, and at least one of them can be appropriately selected and used, but is not limited thereto.
- aromatic amine polyol used as another essential component of the polyol component together with the phenol resin polyol is obtained by adding an alkylene oxide to an aromatic diamine according to a known method. It is.
- aromatic amine-based polyol is a polyfunctional polyether polyol compound having a terminal hydroxyl group obtained by ring-opening addition of alkylene oxide to an aromatic diamine as an initiator.
- aromatic diamine as an initiator that gives such an aromatic amine-based polyol can use various known aromatic diamine compounds, specifically, generically named tolylenediamine, In addition to various methyl-substituted products of phenylenediamine, derivatives in which a substituent such as methyl, ethyl, acetyl, benzoyl or the like is introduced into the amino group, 4,4′-diaminodiphenylmethane, p-phenylenediamine, o- Examples thereof include phenylenediamine and naphthalenediamine. Of these, tolylenediamine is preferably used for enhancing the properties of the resulting polyurethane foam.
- examples of the alkylene oxide added to the aromatic diamine include known cyclic ether compounds (epoxides) such as ethylene oxide and propylene oxide, and a combination of these oxides is also preferably used. It will be. Among them, from the viewpoint of dimensional stability of the foam, those in which the blending amount of propylene oxide is 10 to 100% by mass, preferably 25 to 75% by mass of the whole alkylene oxide are particularly preferably employed.
- aromatic amine-based polyols obtained by adding alkylene oxide to such aromatic diamines are commercially available.
- tolylenediamine-based polyols Sanix HA-501, HM -550, HM-551 (all of which are products of Sanyo Chemical Industries, Ltd.) and the like, and in the present invention, these products can be appropriately selected and used.
- the hydroxyl value of the aromatic amine-based polyol is preferably in the range of 300 to 500 mgKOH / g, and the viscosity is preferably in the range of 500 to 20000 mPa ⁇ s / 25 ° C.
- such an aromatic amine-based polyol is used as a polyol component together with the above-described phenol resin-based polyol.
- aromatic amine-based polyol and phenol resin-based polyol are used. Is used in such a proportion that the total amount thereof accounts for 60% by mass or more of the polyol component, and in particular, the aromatic amine-based polyol and the phenol resin-based polyol are each 30% by mass or more of the polyol component. In order to better achieve the object of the present invention, it is desirable to use it in a proportion that preferably accounts for 40% by mass or more.
- the phenol resin-based polyol and the aromatic amine-based polyol are desirably used in a mass ratio of 3/7 to 7/3, preferably 4/6 to 6/4.
- the ratio of these phenol resin polyols and aromatic amine polyols if the phenol resin polyols increase too much, the effect of improving the dimensional stability will decrease, and the aromatic amine polyols will increase too much. This is not desirable because the effect of improving the thermal conductivity and flame retardancy is lowered.
- the above-mentioned phenol resin-based polyol and aromatic amine-based polyol are used in combination as the polyol component, but it has an adverse effect on the excellent action and effect of the combined use of these polyol compounds.
- Other known polyol compounds can be used at the same time as long as they do not.
- examples of such other known polyol compounds include known polyether polyols such as aliphatic polyether polyols, aliphatic amine-based polyether polyols, and aromatic polyether polyols.
- the foamable composition for polyurethane foam according to the present invention contains at least a phenol resin-based polyol and an aromatic amine-based polyol as described above as polyol components, and further, as a blowing agent, carbon dioxide and / or Or the source of its formation is introduced.
- the above carbon dioxide or the formation source thereof is polyurethane by (1) adding water as a blowing agent source or (2) adding carbon dioxide in a subcritical state or a supercritical state.
- the subcritical carbon dioxide is liquid carbon dioxide in which the pressure is higher than the critical pressure and the temperature is lower than the critical temperature, carbon dioxide in the liquid state in which the pressure is lower than the critical pressure and the temperature is higher than the critical temperature, Or, the temperature and pressure are below the critical point, but it is near carbon dioxide, and supercritical carbon dioxide is above the critical point of critical pressure and critical temperature. It refers to carbon dioxide in a fluid state.
- water as a foaming agent source plays a role of generating carbon dioxide gas used for foam formation by reaction with a polyisocyanate component described later, and phenol. It contributes a little to the viscosity reduction of the resin-based polyol.
- the blending amount of water for such water foaming can be appropriately set so as to obtain a desired foam density, but is usually based on 100 parts by mass of a polyol component containing a phenol resin polyol and an aromatic amine polyol. 0.3 to 10 parts by mass, preferably 2 to 8 parts by mass, more preferably 4 to 6 parts by mass.
- the blending amount of water is less than 0.3 parts by mass with respect to 100 parts by mass of the polyol component including the phenol resin-based polyol and the aromatic amine-based polyol, the amount of carbon dioxide generated is not sufficient. If it exceeds 10 parts by mass, the foam may be weakened due to an extreme decrease in density.
- the amount added can be appropriately set so as to obtain a desired foam density.
- phenol resin polyols and aromatics are used.
- the amount can be appropriately set in the range of 0.3 to 10 parts by mass, preferably 0.5 to 5 parts by mass with respect to 100 parts by mass of the polyol component containing the amine-based polyol.
- a polyisocyanate component that reacts with a polyol component containing a phenol resin-based polyol and an aromatic amine-based polyol to form a polyurethane is used.
- This polyisocyanate component is an organic isocyanate compound having two or more isocyanate groups (NCO groups) in the molecule.
- diphenylmethane diisocyanate polymethylene polyphenylene polyisocyanate, tolylene diisocyanate, polytolylene polyisocyanate, xylylene Aromatic polyisocyanates such as diisocyanate and naphthalene diisocyanate, aliphatic polyisocyanates such as hexamethylene diisocyanate, alicyclic polyisocyanates such as isophorone diisocyanate, urethane prepolymer having an isocyanate group at the molecular end, isocyanurate of polyisocyanate A modified body, a carbodiimide modified body, etc. can be mentioned. These polyisocyanate components may be used alone or in combination of two or more. In general, polymethylene polyphenylene polyisocyanate (crude MDI) is preferably used from the viewpoints of reactivity, economy, and handling properties.
- CAMI polymethylene polyphenylene polyisocyanate
- the blending ratio of the polyisocyanate component and the polyol component containing the phenol resin polyol and the aromatic amine polyol is changed depending on the type of foam (for example, polyurethane, polyisocyanurate).
- the NCO / OH index (equivalent ratio) indicating the ratio between the isocyanate group (NCO) of the polyisocyanate component and the hydroxyl group (OH) of the polyol component (total of each polyol) is in the range of about 0.9 to 2.5. As such, it is set appropriately.
- the foamable composition for polyurethane foam according to the present invention usually contains a phenol resin polyol and an aromatic amine polyol, carbon dioxide (water that is a foaming agent source in the case of the water foaming method), polyisocyanate.
- a catalyst and a foam stabilizer are usually blended.
- amine-based foaming catalyst having the effect of promoting the reaction is advantageously used.
- examples of such amine-based foaming catalysts include pentamethyldiethylenetriamine, bis (dimethylaminoethyl) ether, N, N, N′-trimethylaminoethylethanolamine, and the like. Or two or more of them may be used in combination.
- the blending amount is usually about 1 to 30 parts by mass with respect to 100 parts by mass of the polyol component including the phenol resin polyol and the aromatic amine polyol.
- a resinification catalyst is advantageously used.
- the resinification catalyst is appropriately selected and used according to the type of foam.
- a urethanization catalyst and an isocyanurate catalyst are used alone, or these are used in combination.
- the urethanization catalyst include tertiary amine, dibutyltin dilaurate, ethylmorpholine, triethylenediamine, tetramethylhexamethylenediamine, bismuth octylate (bismuth 2-ethylhexylate), bismuth neodecanoate, bismuth neodecanoate, and naphthenic acid.
- Fatty acid bismuth salts such as bismuth, lead naphthenate and the like can be mentioned.
- the isocyanuration catalyst include fatty acid alkali metal salts such as hydroxyalkyl quaternary ammonium salts, potassium octylate and sodium acetate, tris ( And (dimethylaminopropyl) hexahydrotriazine.
- These resinification catalysts may be used independently and may use 2 or more types together.
- the blending amount of the resinification catalyst is desirably about 0.1 to 15 parts by mass with respect to 100 parts by mass of the polyol component.
- the foam stabilizer is used for uniformly adjusting the cell structure of the polyurethane foam, and here, silicone and nonionic surfactant are suitably employed.
- Specific examples include dimethylpolysiloxane, polyoxyalkylene-modified dimethylpolysiloxane, polysiloxaneoxyalkylene copolymer, polyoxyethylene sorbitan fatty acid ester, castor oil ethylene oxide adduct, lauryl fatty acid ethylene oxide adduct, and the like. 1 type of these is used individually or in combination of 2 or more types.
- the blending amount of the foam stabilizer can be appropriately determined according to the desired foam characteristics, the type of foam stabilizer to be used, and the like.
- the blending amount of the foam stabilizer is 0.1 with respect to 100 parts by mass of the polyol component. The ratio is about 10 parts by mass.
- the foamable composition for polyurethane foam according to the present invention may further include, as necessary, a flame retardant and a foaming agent, for example, formaldehyde scavengers such as urea and melamine, and cell refinement such as trimethylmethoxysilane.
- a flame retardant and a foaming agent for example, formaldehyde scavengers such as urea and melamine, and cell refinement such as trimethylmethoxysilane.
- auxiliary agents such as an agent, a plasticizer, and a reinforcing base material can be appropriately selected and blended.
- phosphoric esters such as trischloroethyl phosphate, trischloropropyl phosphate, triethyl phosphate, which have a low environmental impact and also function as a thickener for the foamable composition are advantageously used. It is done.
- the blending amount can be appropriately determined according to the desired foam characteristics, the type of flame retardant, etc., but preferably 10 to 10 parts by weight per 100 parts by weight of the phenol resin polyol. It is selected in the range of 60 parts by mass, and in the range, about 10 to 40 parts by mass is particularly preferable.
- aluminum hydroxide etc. can be used suitably as a flame retardant other than the said phosphate ester.
- foaming agent when the foaming agent uses water as a foaming agent source, the foaming due to the soap function of the foaming agent (high foaming property) It is used to make up for the foam stability), and is particularly useful when the foamable composition for polyurethane foam according to the present invention is foamed and cured by the blowing method (spray foaming method).
- foaming agents include fatty acid alkali metal salts known as soap components, particularly lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, etc. having 12 to 18 carbon atoms. Examples thereof include sodium salts and potassium salts of fatty acids.
- a fatty acid potassium salt is particularly preferably used.
- carbon dioxide is employed as the foaming agent from the viewpoint of the preservation of the ozone layer, but such carbon dioxide is employed as the main foaming agent.
- hydrofluorocarbons such as pentafluoropropane (HFC-245fa), pentafluorobutane (HFC-365mfcm), tetrafluoroethane (HFC-134a), and pentane
- HFC-245fa pentafluoropropane
- HFC-365mfcm pentafluorobutane
- HFC-134a tetrafluoroethane
- pentane HFC-134a
- low-boiling point aliphatic hydrocarbons typified by cyclopentane, etc.
- halogen-based hydrocarbons typified by dichloromethane, isopropyl chloride, etc.
- the foamable composition for polyurethane foams according to the present invention using the phenol resin-based polyol, aromatic amine-based polyol, foaming agent and the like as described above, it is the same as the conventional foamable composition for polyurethane foam.
- Various manufacturing techniques can be employed.
- the water foaming method that is, when carbon dioxide generated by the reaction of water and polyisocyanate is used as a foaming agent
- the phenol resin polyol or aromatic amine polyol as a polyol component
- water as a foaming agent source, and if necessary, a foaming catalyst, a resinification catalyst, a foam stabilizer, a flame retardant, a foaming agent, and other various auxiliary agents are blended to prepare a polyol blend liquid (premix Liquid) is prepared.
- the prepared polyol compounded liquid and the polyisocyanate component are mixed at high speed using a low-pressure high-speed stirring mixer, or high pressure using a high-pressure impingement mixer (for example, an on-site spray foaming machine).
- a liquid foamable composition for polyurethane foam can be produced by impact mixing.
- mixing with the polyisocyanate component is advantageously carried out and homogeneous.
- a foamable composition can be produced.
- a polyol, a premixed liquid is prepared by blending a catalyst, a resinification catalyst, a foam stabilizer, a flame retardant, a foaming agent, and other various auxiliary agents. And, immediately before the prepared polyol blending liquid is mixed with the polyisocyanate component, preferably, the polyol blending liquid is added with carbon dioxide in a subcritical or supercritical state under a predetermined pressure and temperature. After mixing, a polyisocyanate component is further added and mixed, whereby a liquid foamable composition for polyurethane foam can be produced.
- the foamable composition for polyurethane foam produced in this way requires, for example, a laminate continuous foaming method in which it is applied onto a face material and foamed and cured in a plate shape, and heat insulation performance such as an electric refrigerator.
- Foaming is achieved by the injection foaming method for foaming and curing by injecting and filling into the honeycomb structure of the space and lightweight / high-strength board, and the spray foaming method for blowing and curing to the adherend from the spray gun head of the on-site foaming machine. It will be cured to form the desired polyurethane foam.
- the thermal conductivity (initial value) is lower than the thermal conductivity (initial value) of the polyurethane foam obtained by the conventional water foaming method, and is preferably less than 0.022 W / (m ⁇ K), preferably Is 0.021 W / (m ⁇ K) or less, and it is also advantageously suppressed that the thermal conductivity increases with time, so that excellent heat insulation performance can be maintained over a long period of time.
- thermal conductivity refers to the thermal conductivity measured in accordance with JIS A 1412.
- thermal conductivity (initial value) is an initial stage after the production of polyurethane foam. It means the thermal conductivity measured during (between 16 hours and 2 days).
- thermal conductivity of such polyurethane foam increases, the foam thickness must be increased to ensure the same thermal insulation performance, so reducing the thermal conductivity can save space and reduce the cost of polyurethane foam products. It greatly contributes to.
- the polyurethane foam produced according to the present invention has a density of about 20 to 100 kg / m 3 .
- the polyurethane foam according to the present invention uses not a polyether-based polyol but a phenol resin-based polyol and an aromatic amine-based polyol as a polyol component, flame resistance and heat resistance are also imparted. It has become.
- the polyurethane foam according to the present invention realizes the same flexibility as when using an alternative chlorofluorocarbon foaming agent, so that unnecessary parts can be easily cut in the subsequent process, and the workability is also improved. It is good.
- a novolak-type phenol resin was prepared, and alkylene oxide was added to the obtained novolac-type phenol resin to prepare a target phenol resin-based polyol.
- the viscosity, number average molecular weight and unreacted phenol (free phenol) amount of the novolak type phenol resin, and the viscosity and hydroxyl value of the phenol resin polyol were measured by the following measuring methods.
- aromatic amine-based polyol a commercially available product having a molar ratio of EO / PO of 25/75 as the tolylenediamine-based polyol M (Sanix HM-551 manufactured by Sanyo Chemical Co., Ltd., viscosity: 15000 mPa ⁇ s / 25 ° C. and hydroxyl value: 400 mgKOH / g), while tolylenediamine polyols N and O were synthesized as follows.
- the viscosity (mPa ⁇ s) was measured according to JIS K 7117-1 using a B-type viscometer.
- the hydroxyl value (mgKOH / g) was measured according to JIS K1557.
- the number average molecular weight and the amount of unreacted phenol were measured using a gel filtration chromatograph 8020 series build-up system (column: G1000HXL + G2000HXL, detector: UV254 nm, carrier: tetrahydrofuran 1 mL / min, column temperature: 38 ° C.) manufactured by Tosoh Corporation. And measured.
- the number average molecular weight is a standard polystyrene conversion value, and the unreacted phenol amount was obtained from a phenol calibration curve by measuring the peak height.
- novolac type phenolic resin A reaction vessel equipped with a stirrer was charged with 9400 g of phenol, 1630 g of 92% paraformaldehyde, and 19 g of oxalic acid as an acid catalyst, and then reacted at 100 ° C. for 4 hours with stirring and mixing. Thereafter, after removing water under reduced pressure, the unreacted phenol was distilled off under reduced pressure until a predetermined temperature was reached, thereby preparing novolac-type phenol resins a, b, and c.
- the obtained novolak-type phenol resin a has an unreacted phenol content of 30%, a number average molecular weight of 160, a viscosity at 80 ° C.
- the novolak-type phenol resin b has an unreacted phenol content.
- Is 10% the number average molecular weight is 260, and the viscosity at 80 ° C. is 5000 mPa ⁇ s.
- the unreacted phenol content of the novolak phenol resin c is 5%, the number average molecular weight is 300, and the viscosity at 80 ° C. is 8000 mPa ⁇ s. s.
- a reaction vessel equipped with a stirring device 9400 g of phenol, 1630 g of 92% paraformaldehyde, and 19 g of oxalic acid as an acid catalyst were charged and then reacted at 100 ° C. for 3 hours with stirring and mixing. Thereafter, water was distilled off under reduced pressure to prepare a novolac type phenol resin d.
- the obtained novolak-type phenol resin d had an unreacted phenol content of 35%, a number average molecular weight of 140, and a viscosity at 80 ° C. of 70 mPa ⁇ s.
- ⁇ Preparation of phenol resin polyol> In a pressure-resistant reaction vessel equipped with a stirrer, as shown in Table 1 below, 4 kg of any of the above novolak type phenol resins a, b, c, and d, and 200 g of potassium hydroxide as an alkali catalyst After charging, add ethylene oxide (EO) or EO and propylene oxide (PO) at a temperature of 150 ° C. while stirring and mixing, and add to the novolac phenolic resin as shown in Table 1 below. I let you. In addition, when adding both EO and PO, after adding ethylene oxide first, propylene oxide was added next.
- EO ethylene oxide
- PO propylene oxide
- ⁇ Preparation of tolylenediamine-based polyol N> In a pressure-resistant reaction vessel equipped with a stirrer, 1 kg of tolylenediamine and 20 g of potassium hydroxide as a reaction catalyst were charged, and stirred under mixing at a temperature of 115 ° C. and under pressure, EO 3. 4 kg was added. Thereafter, the target tolylenediamine polyol N was obtained by neutralizing the catalyst with acetic acid. The polyol thus obtained had a viscosity of 3200 mPa ⁇ s / 25 ° C. and a hydroxyl value of 400 mgKOH / g.
- ⁇ Preparation of tolylenediamine-based polyol O> In a pressure-resistant reaction vessel equipped with a stirrer, 1 kg of tolylenediamine and 20 g of potassium hydroxide as a reaction catalyst were charged and stirred under mixing at a temperature of 115 ° C. under a pressure of 1. 7 kg and 2.2 kg of PO were added. Thereafter, the target tolylenediamine-based polyol O was obtained by neutralizing the catalyst with acetic acid. The resulting polyol had a viscosity of 11000 mPa ⁇ s / 25 ° C. and a hydroxyl value of 400 mgKOH / g.
- Example 1 First, as the polyol component, the phenol resin polyol B prepared above and the tolylenediamine polyol M were used, and as shown in Table 2 below, 50 parts of the phenol resin polyol B and the tolylenediamine polyol were used. 50 parts of M, 2 parts of silicone foam stabilizer (trade name: SH-193, manufactured by Toray Dow Corning), 0.5 parts of resinification catalyst (trade name: Kaulizer No. 25, manufactured by Kao Corporation) , 3 parts of amine-based foaming catalyst (trade name: Kaulizer No.
- the “density” was measured in accordance with JIS K-7222.
- the measurement of “thermal conductivity (W / m ⁇ K) and its change with time” was carried out using the obtained polyurethane foam using a thermal conductivity measuring device (MADDERLAKE SCIENTIFIC GROUP COMPANY, Anacon TCA POINT2). A 1412-2 Annex A (normative) A6. The measurement was performed according to the measurement method. Then, the time-dependent change in thermal conductivity was measured after the urethane foam was prepared and left in an atmosphere of 23 ° C. for 24 hours (initial value), 1 week, 1 month, and 2 months.
- the evaluation of “dimensional stability” was performed by cutting the obtained polyurethane foam into a shape of 150 mm ⁇ 150 mm ⁇ 30 mm, leaving it at 50 ° C. for 24 hours, and measuring the rate of change in thickness. The dimensional change rate was used. In the evaluation results, a case where the dimensional change rate was less than 1% was evaluated as ⁇ , a case where the dimensional change rate was 1 to 3%, and a case where the dimensional change rate exceeded 3% was rated as x.
- flame retardant was made by cutting out a 300 mm ⁇ 200 mm ⁇ 30 mm foam from the obtained polyurethane foam, and then applying a flame for 30 seconds from a gas torch set at a position 100 mm away from the foam. The flame retardance was confirmed. It should be noted that, after the test, the case where the specimen did not penetrate was evaluated as “ ⁇ ”, the case where slight penetration was observed, “ ⁇ ”, and the case where large penetration occurred, “X”.
- Examples 2 to 18 A polyol blending solution was prepared in the same manner as in Example 1 except that the types and blending ratios of the phenol resin polyol and tolylenediamine polyol were as shown in Tables 2 and 3 below. And the foamable composition for polyurethane foams was each prepared like Example 1 using the obtained polyol compounding liquid, and plate-shaped polyurethane foam was obtained.
- the ethylenediamine-based polyol used in Examples 4 and 5 was EXCENOL-450ED (manufactured by Asahi Glass Urethane Co., Ltd.).
- the initial value of the thermal conductivity is less than 0.022 W / (m ⁇ K) regardless of whether carbon dioxide is used as the foaming agent.
- the thermal conductivity is 0.027 W / (m ⁇ K) or less, and it has extremely remarkable utility as a heat insulating material. I understand.
- the polyurethane foams of Examples 1 to 18 were also excellent in flame retardancy and dimensional stability.
- Comparative Example 1 using only the phenol resin-based polyol as the polyol component, the dimensional stability is poor, and in Comparative Example 2 using only the tolylenediamine-based polyol as the polyol component. It is recognized that the flame retardancy is inferior. Further, even when both phenol resin polyol and tolylenediamine polyol are used as the polyol component, in the case of Comparative Examples 3 to 5 in which the total amount used is less than 60% of the total polyol component In that case, the flame retardancy or dimensional stability was poor.
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Abstract
Description
(2)水酸基価(mgKOH/g)は、JIS K 1557に準じて測定した。
(3)数平均分子量及び未反応フェノール量は、東ソー株式会社製ゲル濾過クロマトグラフ8020シリーズビルドアップシステム(カラム:G1000HXL+G2000HXL、検出器:UV254nm、キャリア:テトラヒドロフラン1mL/min、カラム温度:38℃)を用いて測定した。なお、数平均分子量は標準ポリスチレン換算値であり、また、未反応フェノール量は、ピーク高さを測定して、フェノール検量線から求めた。
撹拌装置を備えた反応容器内に、フェノール9400g、92%パラホルムアルデヒド1630g、酸触媒としてシュウ酸19gを仕込んだ後、撹拌混合しながら100℃で、4時間、反応させた。その後、減圧下で水分を溜去した後、引き続き、所定の温度になるまで、減圧下において未反応フェノールを溜去することにより、ノボラック型フェノール樹脂a,b,cを調製した。なお、この得られたノボラック型フェノール樹脂aの未反応フェノール含有量は30%、数平均分子量は160、80℃における粘度は90mPa・sであり、またノボラック型フェノール樹脂bの未反応フェノール含有量は10%、数平均分子量は260、80℃における粘度は5000mPa・sであり、更にノボラック型フェノール樹脂cの未反応フェノール含有量は5%、数平均分子量は300、80℃における粘度は8000mPa・sであった。
撹拌装置を備えた耐圧反応容器内に、下記表1に示されるように、上記ノボラック型フェノール樹脂a,b,c,dのうちの何れかを4kg、アルカリ触媒としての水酸化カリウムの200gと共に仕込んだ後、撹拌混合しながら、150℃の温度で、エチレンオキサイド(EO)又はEO及びプロピレンオキサイド(PO)を下記表1に示される配合量となるように加えて、ノボラック型フェノール樹脂に付加させた。なお、EO及びPOの両方を付加させる場合には、先ず、エチレンオキサイドを付加させた後、プロピレンオキサイドを次に付加させた。その後、水酸化カリウムを酢酸で中和して、6種類のフェノール樹脂系ポリオール(A,B,C,D,E,F)を調製した。得られたフェノール樹脂系ポリオールについて、水酸基価及び25℃における粘度を測定し、その結果を下記表1に示した。
撹拌装置を備えた耐圧反応容器内に、トリレンジアミンの1kgと、反応触媒としての水酸化カリウムの20gを仕込み、撹拌混合しながら、115℃の温度下で、加圧下に、EOの3.4kgを付加せしめた。その後、触媒を酢酸にて中和することにより、目的とするトリレンジアミン系ポリオールNを得た。なお、この得られたポリオールの粘度は、3200mPa・s/25℃であり、水酸基価は、400mgKOH/gであった。
撹拌装置を備えた耐圧反応容器内に、トリレンジアミンの1kgと、反応触媒としての水酸化カリウムの20gを仕込み、撹拌混合しながら、115℃の温度下で、加圧下に、EOの1.7kg及びPOの2.2kgを付加せしめた。その後、触媒を酢酸にて中和することにより、目的とするトリレンジアミン系ポリオールOを得た。なお、この得られたポリオールの粘度は、11000mPa・s/25℃であり、水酸基価は、400mgKOH/gであった。
先ず、ポリオール成分として、上記で準備したフェノール樹脂系ポリオールBとトリレンジアミン系ポリオールMとを用い、下記表2に示されるように、このフェノール樹脂系ポリオールBの50部とトリレンジアミン系ポリオールMの50部に対し、シリコーン整泡剤(商品名:SH-193、東レ・ダウコーニング社製)2部、樹脂化触媒(商品名:カオライザーNo.25、花王株式会社製)0.5部、アミン系泡化触媒(商品名:カオライザーNo.26、花王株式会社製)3部、発泡剤源としての水5部、難燃剤(トリスクロロプロピルフォスフェート)30部及び起泡剤(リシノール酸カリウム)1部を混合して、ポリオール配合液を調製した。
フェノール樹脂系ポリオールとトリレンジアミン系ポリオールの種類と配合割合を、下記表2及び表3に示されるようにしたこと以外は、実施例1と同様にして、ポリオール配合液を調製した。そして、その得られたポリオール配合液を用いて、実施例1と同様にして、それぞれポリウレタンフォーム用発泡性組成物を調製し、板状のポリウレタンフォームを得た。なお、実施例4及び5において用いたエチレンジアミン系ポリオールは、EXCENOL-450ED(旭硝子ウレタン株式会社製)であった。
ポリオール成分として、フェノール樹脂系ポリオールBのみを使用すること(比較例1)、又はトリレンジアミン系ポリオールMのみを使用すること(比較例2)、又はフェノール樹脂系ポリオールBとトリレンジアミン系ポリオールMの合計量をポリオール成分全体の60%未満としたこと(比較例3,4,5)以外は、それぞれ、実施例1と同様にして、ポリオール配合液を調製した。そして、その得られたポリオール配合液を用いて、実施例1と同様にして、ポリウレタンフォーム用発泡性組成物を調製し、板状のポリウレタンフォームを得た。そして、この得られたポリウレタンフォームについて、更に実施例1と同様にして、密度、熱伝導率及び熱伝導率の経時変化、寸法安定性、難燃性の測定を行ない、その得られた結果を、下記表4及び表5に示した。
ポリオール成分としてフェノール樹脂系ポリオールBの50部を用い且つアルキレンオキサイドの付加されていないトリレンジアミンの50部を用いること(比較例6)以外は、又は、ポリオール成分としてトリレンジアミン系ポリオールMの50部を用い且つアルキレンオキサイドの付加されていないノボラック型フェノール樹脂の50部を用いること(比較例7)以外は、それぞれ、実施例1と同様にして、ポリオール配合液を調製し、更に、その得られたポリオール配合液に対して、クルードMDIを加え、ホモディスパーにて高速攪拌混合したところ、混合不良及び脆性が発現して、良好な発泡体を得ることができなかった。
Claims (14)
- ポリオール成分とポリイソシアネート成分とを反応、発泡させることにより得られるポリウレタンフォームの製造に使用される発泡性組成物であって、
前記発泡に二酸化炭素が用いられると共に、前記ポリオール成分として、ノボラック型フェノール樹脂にアルキレンオキサイドを付加させて得られるフェノール樹脂系ポリオールと、芳香族ジアミンにアルキレンオキサイドを付加させて得られる芳香族アミン系ポリオールとを、それらの合計量がポリオール成分の60質量%以上を占める割合で用いたことを特徴とするポリウレタンフォーム用発泡性組成物。 - 前記二酸化炭素が、水とポリイソシアネート成分との反応により発生せしめられる請求項1に記載のポリウレタンフォーム用発泡性組成物。
- 前記ノボラック型フェノール樹脂が、遊離フェノール類を1~50質量%の割合で含有している請求項1又は請求項2に記載のポリウレタンフォーム用発泡性組成物。
- 前記ノボラック型フェノール樹脂が、遊離フェノール類を5~35質量%の割合で含有している請求項1乃至請求項3の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記ノボラック型フェノール樹脂が、遊離フェノール類を10~30質量%の割合で含有している請求項1乃至請求項4の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記芳香族ジアミンが、トリレンジアミンである請求項1乃至請求項5の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記ノボラック型フェノール樹脂又は前記芳香族ジアミンに付加せしめられるアルキレンオキサイドが、エチレンオキサイド、プロピレンオキサイド又はこれらの混合物である請求項1乃至請求項6の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記ノボラック型フェノール樹脂に付加せしめられるアルキレンオキサイドが、エチレンオキサイド、又は50質量%以上のエチレンオキサイドと50質量%以下のプロピレンオキサイドとの組合せからなるものである請求項1乃至請求項7の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記ノボラック型フェノール樹脂に付加せしめられるアルキレンオキサイドの10~100質量%が、プロピレンオキサイドである請求項1乃至請求項7の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記芳香族ジアミンに付加せしめられるアルキレンオキサイドの10~100質量%が、プロピレンオキサイドである請求項1乃至請求項7の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記フェノール樹脂系ポリオールと前記芳香族アミン系ポリオールとが、それぞれ、前記ポリオール成分の30質量%以上を占める割合で含有せしめられている請求項1乃至請求項10の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記フェノール樹脂系ポリオールと前記芳香族アミン系ポリオールとが、それぞれ、前記ポリオール成分の40質量%以上を占める割合で含有せしめられている請求項1乃至請求項10の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 前記フェノール樹脂系ポリオールと前記芳香族アミン系ポリオールとが、質量比にて、3/7~7/3の割合において含有せしめられている請求項1乃至請求項12の何れか1項に記載のポリウレタンフォーム用発泡性組成物。
- 請求項1乃至請求項13の何れか1項に記載のポリウレタンフォーム用発泡性組成物を発泡、硬化させて得られるポリウレタンフォーム。
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KR1020117011965A KR101345075B1 (ko) | 2008-11-06 | 2009-10-29 | 폴리우레탄 폼용 발포성 조성물 및 폴리우레탄 폼 |
EP09824561.6A EP2345680A4 (en) | 2008-11-06 | 2009-10-29 | EXPANDABLE COMPOSITION FOR POLYURETHANE FOAM, AND POLYURETHANE FOAM |
JP2010536661A JP5473935B2 (ja) | 2008-11-06 | 2009-10-29 | ポリウレタンフォーム用発泡性組成物及びポリウレタンフォーム |
CN200980144268XA CN102203158B (zh) | 2008-11-06 | 2009-10-29 | 聚氨酯泡沫体用发泡性组合物及聚氨酯泡沫体 |
US13/081,830 US20110184081A1 (en) | 2008-11-06 | 2011-04-07 | Foamable composition for polyurethane foam and polyurethane foam |
US13/793,098 US20130190412A1 (en) | 2008-11-06 | 2013-03-11 | Foamable composition for polyurethane foam and polyurethane foam |
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US13/081,830 Continuation US20110184081A1 (en) | 2008-11-06 | 2011-04-07 | Foamable composition for polyurethane foam and polyurethane foam |
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EP (1) | EP2345680A4 (ja) |
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Cited By (5)
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JP2011021053A (ja) * | 2009-07-13 | 2011-02-03 | Asahi Organic Chemicals Industry Co Ltd | ポリウレタンフォーム用発泡性組成物及びポリウレタンフォーム |
JP2012057008A (ja) * | 2010-09-07 | 2012-03-22 | Asahi Organic Chemicals Industry Co Ltd | ポリウレタンフォーム用発泡性組成物並びにポリウレタンフォーム材 |
JP2012132263A (ja) * | 2010-12-22 | 2012-07-12 | Miraku Roofsystem Co Ltd | 断熱耐火サンドイッチパネル及びその製造方法 |
US20140045960A1 (en) * | 2011-04-29 | 2014-02-13 | Bayer Intellectual Property GmbH Creative Campus Monheim | Polyurethane foam and method for producing same |
WO2017164293A1 (ja) * | 2016-03-25 | 2017-09-28 | 住友化学株式会社 | 老化防止剤組成物 |
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EP2368927A4 (en) * | 2008-12-24 | 2014-06-25 | Asahi Organic Chem Ind | FOAMABLE COMPOSITION FOR A POLYURETHANE FOAM AND POLYURETHANE FOAM |
DE102011050014A1 (de) * | 2011-04-29 | 2012-10-31 | Bayer Materialscience Aktiengesellschaft | Polyurethanschaum und Verfahren zu seiner Herstellung |
US9597826B2 (en) | 2012-10-30 | 2017-03-21 | Bell Helicopter Textron Inc. | Method of repairing, splicing, joining, machining, and stabilizing honeycomb core using pourable structural foam and a structure incorporating the same |
US9333684B2 (en) * | 2012-10-30 | 2016-05-10 | Bell Helicopter Textron Inc. | Method of repairing, splicing, joining, machining, and stabilizing honeycomb core using pourable structural foam and a structure incorporating the same |
US9149999B2 (en) | 2012-10-30 | 2015-10-06 | Bell Helicopter Textron Inc. | Method of repairing, splicing, joining, machining, and stabilizing honeycomb core using pourable structural foam and a structure incorporating the same |
US20170306077A1 (en) * | 2014-10-21 | 2017-10-26 | Momentive Performance Materials Inc. | Rigid polyurethane foams comprising modified phenolic resins additives |
CN107513157B (zh) * | 2017-09-15 | 2021-02-02 | 万华化学集团股份有限公司 | 胺基聚醚多元醇及其制备方法和应用 |
CN110437418A (zh) * | 2019-08-29 | 2019-11-12 | 万华化学集团股份有限公司 | 一种延迟发泡的硬质聚氨酯泡沫及其制备方法 |
WO2021089392A1 (en) * | 2019-11-06 | 2021-05-14 | Basf Se | Rigid polyurethane based foam with compression strength and fire resistance |
KR102397310B1 (ko) * | 2020-04-08 | 2022-05-12 | 에이치디씨현대이피 주식회사 | 용매를 사용하지 않는 고발포 폴리우레탄 폼 제조방법 및 이 제조방법에 의해 제조된 폴리우레탄 폼 |
CN115304816B (zh) * | 2022-09-14 | 2023-08-22 | 张家界湘汉仿真花有限公司 | 一种仿真印花用聚氨酯发泡片及其制备方法 |
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WO2017164293A1 (ja) * | 2016-03-25 | 2017-09-28 | 住友化学株式会社 | 老化防止剤組成物 |
Also Published As
Publication number | Publication date |
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JPWO2010052860A1 (ja) | 2012-04-05 |
EP2345680A1 (en) | 2011-07-20 |
EP2345680A4 (en) | 2015-05-20 |
KR20110089303A (ko) | 2011-08-05 |
CN102203158A (zh) | 2011-09-28 |
JP5473935B2 (ja) | 2014-04-16 |
CN102203158B (zh) | 2013-11-27 |
KR101345075B1 (ko) | 2013-12-26 |
US20110184081A1 (en) | 2011-07-28 |
US20130190412A1 (en) | 2013-07-25 |
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