WO2017163863A1 - ポリウレタンフォーム、及びポリウレタン製造用ポリオール組成物 - Google Patents
ポリウレタンフォーム、及びポリウレタン製造用ポリオール組成物 Download PDFInfo
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- WO2017163863A1 WO2017163863A1 PCT/JP2017/009117 JP2017009117W WO2017163863A1 WO 2017163863 A1 WO2017163863 A1 WO 2017163863A1 JP 2017009117 W JP2017009117 W JP 2017009117W WO 2017163863 A1 WO2017163863 A1 WO 2017163863A1
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- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- 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
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
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- 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
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- C08G18/72—Polyisocyanates or polyisothiocyanates
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- 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
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
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- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- 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
- C08J9/12—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 physical blowing agent
- C08J9/14—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 physical blowing agent organic
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Definitions
- the present invention relates to a polyurethane foam and a polyol composition for producing polyurethane.
- This application claims priority based on Japanese Patent Application No. 2016-62312 for which it applied to Japan on March 25, 2016, and uses the content here.
- aldehydes volatile organic compounds (VOC)
- formaldehyde cause sick house syndrome and the like, and therefore, there is a demand in the residential field to avoid diffusing these compounds as much as possible.
- VOC volatile organic compounds
- soft urethane foam with a high cushioning property is used for a vehicle seat pad, but formaldehyde, acetaldehyde, etc. that are contained in the raw material for polyurethane foam after these urethane foam molding or generated during the urethanization reaction are padded. Therefore, it is required to reduce the generation of these aldehydes.
- Patent Document 1 a deodorant resin composition obtained by adding a hydrazide compound to polyurethane (see Patent Document 1), or a method of mixing a hydrazine compound with a polyol compound (Patent Document 2). See).
- This invention makes it a subject to provide the polyol composition used for manufacture of the polyurethane foam excellent in the effect of aldehyde reduction, and such a polyurethane foam.
- a polyurethane foam containing an amine-based polymer having an amino group in a repeating unit [2] The polyurethane foam according to [1], wherein the amine-based polymer is at least one selected from the group consisting of polyvinylamine, polyvinylalkylamine, polyalkyleneimine, polyaniline, and salts thereof. [3] The polyurethane foam according to [2], wherein the amine-based polymer is polyethyleneimine.
- the polyethyleneimine used in the present invention means a polymer having a polyethyleneimine skeleton, and the structure and the ratio of primary to tertiary amines are not particularly limited.
- a polyol composition for producing a polyurethane comprising a polyol and an amine-based polymer having an amino group in a repeating unit.
- the generation of aldehyde can be significantly reduced when this is used as a sheet pad or the like.
- the polyurethane foam of the present invention contains an amine polymer having an amino group in the repeating unit.
- a flexible polyurethane foam or a semi-rigid polyurethane foam is preferable, and a flexible polyurethane foam is especially preferable.
- the flexible polyurethane foam will be described.
- the flexible polyurethane foam is obtained by foam molding a polyol composition containing a polyol, an amine polymer, a foaming agent, and a catalyst and a polyisocyanate.
- the foam molding method for example, a one-shot method, a prepolymer method, a mechanical floss method, or the like can be employed.
- the foam molding method for the polyurethane foam include a slab method in which a mixture of a polyol composition and a polyisocyanate is discharged onto a traveling conveyor belt and foamed while moving on the conveyor belt to obtain a continuous polyurethane foam slab.
- a mold method in which the mixture is discharged into a mold and foaming is performed in the mold, or a mechanical floss method in which bubbles are mixed by mechanical stirring may be used.
- the polyol component contained in the polyol composition has an average functional group number of 2 to 8, a hydroxyl value of 14 to 60 (mg KOH / g), and a content of oxyethylene units of 0 from the viewpoint of moldability and mechanical properties of urethane foam. It contains polyether polyol (hereinafter referred to as “polyether polyol A”) that is ⁇ 30% by weight.
- the average number of functional groups of the polyether polyol A is 2 to 8, preferably 2 to 6, and more preferably 2 to 5 from the viewpoints of moldability and urethane foam mechanical properties.
- the hydroxyl value of the polyether polyol A is 14 to 60 (mgKOH / g), preferably 17 to 50 (mgKOH / g), more preferably 20 to 45 (from the viewpoint of curability and mechanical properties of the urethane foam. mgKOH / g).
- the hydroxyl value in the present invention is measured by a method specified in Japanese Industrial Standard JIS K1557-1.
- the content of the oxyethylene unit in the polyether polyol A is 0 to 30% by weight, preferably 5 to 25% by weight, more preferably 5 to 20% by weight, from the viewpoints of moldability and mechanical properties of the urethane foam. is there.
- the polyether polyol contained in the polyether composition may be one type or two or more types.
- Polyether polyol A includes at least 2 (preferably 2 to 8) active hydrogen-containing compounds (polyhydric alcohol, polyhydric phenol, amine, polycarboxylic acid, phosphoric acid, etc.) and alkylene oxide (hereinafter referred to as “polyether alcohol”). , Abbreviated as AO), and the like. Any of these may be used as long as they are used for normal polyurethane foam production. Among these, polyhydric alcohols are preferable from the viewpoint of curability and mechanical properties of urethane foam.
- the AO added to the active hydrogen-containing compound is preferably AO composed of 1,2-AO having 3 or more carbon atoms and ethylene oxide (hereinafter abbreviated as EO).
- 1,2-AO having 3 or more carbon atoms 1 , 2-propylene oxide (hereinafter abbreviated as PO), 1,2-butylene oxide, styrene oxide and the like, among which PO is preferred from the viewpoint of productivity.
- AO is preferably composed of only 1,2-AO having 3 or more carbon atoms and EO.
- addition of AO in combination with other AO within a range of 10% by weight or less (more preferably 5% by weight or less) in AO. It may be a thing.
- Other AOs are preferably those having 4 to 8 carbon atoms, such as 1,3-, 1,4- and 2,3-butylene oxide, and two or more of them may be used.
- the addition method of AO may be either block addition or random addition, but at least the active hydrogen terminal of the polyol is preferably block addition.
- the polyol component may contain other polyols or active hydrogen components in addition to the polyol, polyether polyols other than those described above, polyester polyols, polyhydric alcohols, polyols other than those described above, and monools, And polymer polyols obtained by polymerizing vinyl monomers among these polyols, amines, and mixtures thereof. Any of these may be used as long as they can be used for normal polyurethane foam production.
- the polyol composition may further contain a polyol that functions as a communicating agent for communicating bubbles of the flexible polyurethane foam. Any of these may be used as long as they can be used for normal polyurethane foam production.
- the amine-based polymer functions as an aldehyde scavenger.
- the amine-based polymer is preferably at least one selected from the group consisting of polyvinylamine, polyvinylalkylamine (polyallylamine, etc.), polyalkyleneimine, polyaniline, and salts thereof, from the viewpoint of the effect of reducing the generation of aldehydes.
- polyethyleneimine is particularly preferred.
- the polyethyleneimine applied to the present invention is not a complete linear polymer, but has a branched structure containing a primary amino group, a secondary amino group, and a tertiary amino group in the molecular skeleton, and , Polyethyleneimine in which the primary amino group accounts for 20 mol% or more of the total amino group.
- the viscosity of polyethyleneimine is preferably 40000 (mPa ⁇ s ⁇ 25 ° C.) or less, more preferably 20000 or less, and further preferably 15000 or less.
- the amine-based polymer is preferably a polymer having at least one selected from the group consisting of a primary amine and a secondary amine in the repeating unit, and more preferably having both a primary amine and a secondary amine. .
- the amine polymer may contain a tertiary amine.
- the ratio (molar ratio) of primary amine: secondary amine: tertiary amine in the amine-based polymer is preferably 20-60: 20-60: 10-50.
- the amount of the amine-based polymer is preferably 0.01 to 5.0 parts by mass, more preferably 0.01 to 3.0 parts by mass with respect to 100 parts by mass of the polyol. More preferably, the content is 01 to 1.0 parts by mass. If the amount of the amine polymer is too small, the effect of reducing the generation of aldehydes cannot be obtained, and if too large, the influence on the urethanization reaction becomes excessive, making it difficult to obtain a polyurethane foam having desired characteristics. There is a case. In addition, an amine polymer is normally used by making it contain in the polyol composition for polyurethane manufacture mentioned later.
- Foaming agent As the foaming agent contained in the polyol composition, water is preferably used. Since water reacts with polyisocyanate to generate carbon dioxide, it functions as a foaming agent.
- the water content in the polyol composition is preferably 1 to 7 parts by mass and more preferably 2 to 5 parts by mass with respect to 100 parts by mass of the polyol. Within the above range, a flexible polyurethane foam having desired physical properties can be easily obtained. Moreover, it can prevent that the heat compression residual distortion characteristic of the obtained flexible polyurethane foam deteriorates.
- Examples of the catalyst contained in the polyol composition include known catalysts used in the field of polyurethane foam.
- Known catalysts include amine catalysts and tin catalysts.
- known catalysts are roughly classified into a resinification catalyst and a foaming catalyst.
- the resinification catalyst promotes the synthesis of polyurethane by the reaction between the polyol and the polyisocyanate.
- a resin catalyst having a ratio of the foaming catalyst constant to the gelation catalyst constant (foaming catalyst constant / gelation catalyst constant) of 1 or less is called a resination catalyst.
- the foaming catalyst promotes foaming of the polyurethane rather than resin.
- a foaming catalyst having a ratio of the foaming catalyst constant to the gelation catalyst constant of more than 1 is called a foaming catalyst.
- the gelation catalyst constant is a constant that determines the speed of the resinification reaction between polyols and polyisocyanates, and the higher the value, the higher the crosslink density of the foam.
- the reaction constant of the gelation reaction between tolylene diisocyanate and diethylene glycol is used.
- the foaming catalyst constant is a constant that determines the speed of the foaming reaction between the polyisocyanates and water, and the larger the value, the higher the cell connectivity of the foam.
- the reaction constant of the foaming reaction between tolylene diisocyanate and water is used.
- the gelation catalyst constant and the foaming catalyst constant are determined by a known method.
- the resinification catalyst examples include triethylenediamine (TEDA), triethylenediamine, N, N, N ′, N′-tetramethylethylenediamine, N, N, N ′, N′-tetramethylpropylenediamine, N, N, N ′, N ′′, N ′′ -pentamethyl- (3-aminopropyl) ethylenediamine, N, N, N ′, N ′′, N ′′ -pentamethyldipropylenetriamine, N, N, N ′, N′-tetramethyl Tertiary amines such as guanidine, 135-tris (N, N-dimethylaminopropyl), hexahydro-S-triazine; imidazoles such as 1-methylimidazole, 1,2-dimethylimidazole, 1-isobutyl-2-methylimidazole N, N, N ′, N′-tetramethylhexamethylenediamine, N-methyl
- foaming catalyst examples include bis (2-dimethylaminoethyl) ether, N, N, N ′, N ′′, N ′′ -pentamethyldiethylenetriamine, N, N, N ′, N ′′, N ′ ′′, N ′ ′′ -hexamethyltriethylenetetramine and the like.
- the resinification catalyst in addition to the above-mentioned amine-based catalyst, as a tin catalyst, for example, stannous octoate, stannous laurate, dibutyltin dilaurate, dibutyltin dimaleate, dibutyltin diacetate, dioctyltin diacetate, Known organotin catalysts such as tin octylate can be mentioned. Both the resinification catalyst and the foaming catalyst may be used in the form of a solution obtained by diluting with a known solvent such as dipropylene glycol or polypropylene glycol.
- a known solvent such as dipropylene glycol or polypropylene glycol.
- the content of the amine catalyst in the polyol composition is preferably 0.1 to 5.0 parts by weight, and preferably 0.2 to 3.0 parts by weight with respect to 100 parts by weight of the polyol. Is more preferably 0.3 to 2.0 parts by mass.
- the content of the tin catalyst in the polyol composition is preferably 0.001 to 1 part by mass with respect to 100 parts by mass of the polyol.
- the polyol composition may contain a foam stabilizer.
- a foam stabilizer used in the field of polyurethane foam is applicable, and examples thereof include a silicone foam stabilizer.
- the content of the foam stabilizer in the polyol composition is preferably 0.1 to 5 parts by weight, more preferably 0.2 to 3 parts by weight, and more preferably 0.3 to 2.5 parts by weight with respect to 100 parts by weight of the polyol. Part by mass is more preferable.
- additives can be blended in the polyol composition as required.
- a crosslinking agent a colorant such as a pigment, a chain extender, a filler such as calcium carbonate, a flame retardant, an antioxidant, an ultraviolet absorber, a light stabilizer, a conductive material such as carbon black, an antibacterial agent, etc.
- the compounding quantity of various additives is suitably adjusted according to a use and the objective.
- isocyanate component used in the method for producing a flexible polyurethane foam of the present invention those conventionally used in polyurethane production can be used.
- isocyanates include aromatic polyisocyanates, aliphatic polyisocyanates, alicyclic polyisocyanates, araliphatic polyisocyanates, and modified products thereof (for example, urethane groups, carbodiimide groups, allophanate groups, urea groups, burettes).
- Group, an isocyanurate group, or an oxazolidone group-containing modified product and a mixture of two or more thereof.
- aromatic polyisocyanate examples include C (excluding carbon in the NCO group; the same as the following isocyanates) 6 to 16 aromatic diisocyanates, C6 to 20 aromatic triisocyanates, and crude products of these isocyanates. . Specific examples include 1,3- and / or 1,4-phenylene diisocyanate, 2,4- and / or 2,6-tolylene diisocyanate (TDI), crude TDI, 2,4′- and / or 4, 4'-diphenylmethane diisocyanate (MDI), polymethylene polyphenyl isocyanate (crude MDI), and the like.
- aliphatic polyisocyanate examples include C6-10 aliphatic diisocyanates. Specific examples include 1,6-hexamethylene diisocyanate and lysine diisocyanate.
- Examples of the alicyclic polyisocyanate include C6-16 alicyclic diisocyanate. Specific examples include isophorone diisocyanate, 4,4′-dicyclohexylmethane diisocyanate, and norbornane diisocyanate.
- Examples of the araliphatic polyisocyanate include C8-12 araliphatic diisocyanates. Specific examples include xylylene diisocyanate, ⁇ , ⁇ , ⁇ ′, ⁇ ′-tetramethylxylylene diisocyanate and the like. Specific examples of the modified polyisocyanate include urethane-modified MDI and carbodiimide-modified MDI.
- the specific use of the polyurethane foam of the present invention is not particularly limited.
- the polyurethane foam of the present invention is a flexible polyurethane foam
- seat pads for automobiles and transportation vehicles bedding such as mattresses and pillows, women's underwear such as brassiere and brassiere pads, and scratches can be prevented.
- Can be suitably used for various molded products such as chair covers and sofa leg covers, tableware underlays, flooring materials, table seats, coasters, miscellaneous goods, etc., especially as seat pads for automobiles and transportation vehicles It can be used suitably.
- the polyol composition for producing a polyurethane of the present invention contains a polyol and an amine polymer having an amino group in the repeating unit. More preferably, the polyol composition for producing polyurethane is a mixture containing the remaining raw materials excluding the polyisocyanate among the raw materials of the foaming stock solution as constituent components. Each component and its amount are as described above in relation to the foaming stock solution.
- Polyether polyol Polyether polyol having a hydroxyl value of 34, which is the aforementioned polyether polyol A (Sanix FA703, manufactured by Sanyo Chemical Industries, Ltd.)
- Polymer polyol Polymer polyol having a hydroxyl value of 23 (Sanix KC855, manufactured by Sanyo Chemical Industries, Ltd.)
- Resinization catalyst Mixture of triethylenediamine (TEDA) (33% by mass) and dipropylene glycol (DPG) (67% by mass) (TEDA-L33, manufactured by Tosoh Corporation)
- Foaming catalyst Mixture of bis (2-dimethylaminoethyl) ether (BDMAEE) (70% by mass) and dipropylene glycol (DPG) (30% by mass) (TOYOCAT-ET, manufactured by Tosoh Corporation)
- Foam stabilizer Silicone foam stabilizer (Niax silicone L3627, manufactured by Momentive Performance Materials) Polyisocyanate: mixture
- Examples 1 to 15 and Comparative Examples 1 to 4 A polyurethane foam for a seat pad was obtained in the same manner as in Reference Example 1 except that the additives shown in Table 2 were added to the polyol composition for polyurethane production. About the obtained sheet
- the polyurethane foam according to the present invention can be widely used as a vehicle seat pad or the like.
- ADVANTAGE OF THE INVENTION According to this invention, the polyol composition used suitably for manufacture of the polyurethane foam excellent in the effect of the reduction of aldehydes which are VOC, and such a polyurethane foam can be provided.
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Abstract
Description
本発明は、アルデヒド類低減の効果に優れるポリウレタンフォーム、及びそのようなポリウレタンフォームの製造に用いられるポリオール組成物の提供を課題とする。
[2] 前記アミン系ポリマーが、ポリビニルアミン、ポリビニルアルキルアミン、ポリアルキレンイミン、ポリアニリン及びこれらの塩からなる群より選ばれる少なくとも1種である上記[1]に記載のポリウレタンフォーム。
[3] 前記アミン系ポリマーが、ポリエチレンイミンである、前記[2]に記載のポリウレタンフォーム。
なお、本発明で使用されるポリエチレンイミンとは、ポリエチレンイミン骨格を有するポリマーを意味し、その構造や一級ないし三級アミンの比率については特に制限はない。
[4] シート用パッドである前記[1]~[3]のいずれかに記載のポリウレタンフォーム。
[5] ポリオールと、繰り返し単位中にアミノ基を有するアミン系ポリマーと、を含有するポリウレタン製造用ポリオール組成物。
[6] 前記アミン系ポリマーを、前記ポリオール100質量部に対して、0.01~5.0質量部含有する前記[5]に記載のポリウレタン製造用ポリオール組成物。
[7] 前記アミン系ポリマーが、ポリビニルアミン、ポリビニルアルキルアミン、ポリアルキレンイミン、ポリアニリン及びこれらの塩からなる群より選ばれる少なくとも1種である前記[6]に記載のポリウレタン製造用ポリオール組成物。
[8] 前記アミン系ポリマーが、ポリエチレンイミンである、前記[7]に記載のポリウレタン製造用ポリオール組成物。
≪ポリウレタンフォーム≫
本発明のポリウレタンフォームは、繰り返し単位中にアミノ基を有するアミン系ポリマーを含有する。
本発明のポリウレタンフォームの形態については特に制限はないが、軟質ポリウレタンフォーム又は半硬質ポリウレタンフォームが好ましく、軟質ポリウレタンフォームが特に好ましい。以下、軟質ポリウレタンフォームについて説明する。
軟質ポリウレタンフォームは、ポリオール、アミン系ポリマー、発泡剤、及び触媒を含有するポリオール組成物とポリイソシアネートを発泡成形して得られる。その発泡成形の方法としては、例えば、ワンショット法、プレポリマー法、メカニカルフロス法などを採用できる。
上記ポリウレタンフォームの発泡成形方法としては、ポリオール組成物とポリイソシアネートの混合物を走行コンベアベルトに吐出し、コンベアベルト上で移動しながら発泡を行い連続したポリウレタンフォームスラブを得るスラブ方式のものや、金型内に前記混合物を吐出し、金型内で発泡を行うモールド方式、機械的な攪拌により気泡を混入するメカニカルフロス方式のいずれもでもよい。
(ポリオール)
前記ポリオール組成物に含まれるポリオール成分は、成形性及びウレタンフォームの機械物性の観点から、平均官能基数が2~8、水酸基価14~60(mgKOH/g)、オキシエチレン単位の含有量が0~30重量%であるポリエーテルポリオール(以下、「ポリエーテルポリオールA」と称する。)を含有する。
本発明における水酸基価は、日本工業規格JIS K1557-1に規定の方法で測定される。
AOは、これら炭素数3以上の1,2-AO及びEOのみからなることが好ましいが、AO中10重量%以下(さらに好ましくは5重量%以下)の範囲で他のAOが併用された付加物であってもよい。他のAOとしては、炭素数4~8のものが好ましく、1,3-、1,4-及び2,3-ブチレンオキサイド等が挙げられ、2種以上用いてもよい。
本発明においてアミン系ポリマーは、アルデヒド捕捉剤として機能する。
撹拌性の観点から、ポリエチレンイミンの粘度は40000(mPa・s-25℃)以下が好ましく、20000以下であることがより好ましく、15000以下であることが更に好ましい。
なお、アミン系ポリマーは通常、後述するポリウレタン製造用ポリオール組成物に含有させて使用される。
前記ポリオール組成物に含まれる発泡剤としては、水を用いることが好ましい。水はポリイソシアネートと反応して炭酸ガスを発生するため、発泡剤として機能する。
前記ポリオール組成物中の水の含有量としては、ポリオール100質量部に対して、1~7質量部であることが好ましく、2~5質量部であることがより好ましい。上記範囲であると、所望の物性を有する軟質ポリウレタンフォームが容易に得られる。また、得られた軟質ポリウレタンフォームの熱圧縮残留歪み特性が劣化することを防止できる。
前記ポリオール組成物に含まれる触媒としては、ポリウレタンフォームの分野で使用される公知の触媒が挙げられる。公知の触媒としては、アミン系触媒、スズ触媒が挙げられる。
通常、公知の触媒は大きく分けて、樹脂化触媒と泡化触媒とに分類される。
樹脂化触媒は、前記ポリオールと前記ポリイソシアネートとの反応によるポリウレタンの合成を促進するものである。ゲル化触媒定数に対する泡化触媒定数の比(泡化触媒定数/ゲル化触媒定数)が1以下であるものが樹脂化触媒と呼ばれる。
泡化触媒は、樹脂化よりも前記ポリウレタンの発泡を促進するものである。ゲル化触媒定数に対する泡化触媒定数の比が1を超えるものが泡化触媒と呼ばれる。
ここで、ゲル化触媒定数は、ポリオール類とポリイソシアネート類との樹脂化反応の速度を決定する定数であり、その値が大きくなると発泡体の架橋密度が高くなる。具体的には、トリレンジイソシアネートとジエチレングリコールとのゲル化反応の反応定数が用いられる。一方、泡化触媒定数は、ポリイソシアネート類と水との泡化反応の速度を決定する定数であり、その値が大きくなると発泡体のセルの連通性が高められる。具体的には、トリレンジイソシアネートと水との泡化反応の反応定数が用いられる。
ゲル化触媒定数及び泡化触媒定数は公知方法により決定される。
本発明においては、樹脂化触媒と泡化触媒の両方を含む触媒を使用することが好ましい。このような触媒を使用することにより、軟質ポリウレタンフォームの機械的強度を向上させることができる。
前記ポリオール組成物には、整泡剤が含まれてもよい。整泡剤としては、ポリウレタンフォームの分野で使用される公知の整泡剤が適用可能であり、シリコーン系整泡剤等が挙げられる。
前記ポリオール組成物には、必要に応じて各種添加剤を配合することができる。例えば、架橋剤、顔料等の着色剤、鎖延長剤、炭酸カルシウム等の充填材、難燃剤、酸化防止剤、紫外線吸収剤、光安定剤、カーボンブラック等の導電性物質、抗菌剤などを配合することができる。各種添加剤の配合量は、用途や目的に応じて適宜調整される。
本発明の軟質ポリウレタンフォームの製造方法に用いるイソシアネート成分としては、従来からポリウレタン製造に使用されているものが使用できる。このようなイソシアネートとしては、芳香族ポリイソシアネート、脂肪族ポリイソシアネート、脂環式ポリイソシアネート、芳香脂肪族ポリイソシアネート、これらの変性物(例えば、ウレタン基、カルボジイミド基、アロファネート基、ウレア基、ビューレット基、イソシアヌレート基、又はオキサゾリドン基含有変性物等)及びこれらの2種以上の混合物が挙げられる。
脂肪族ポリイソシアネートとしては、C6~10の脂肪族ジイソシアネート等が挙げられる。具体例としては、1,6-ヘキサメチレンジイソシアネート、リジンジイソシアネート等が挙げられる。
変性ポリイソシアネートの具体例としては、ウレタン変性MDI、カルボジイミド変性MDI等が挙げられる。
その後、軟質ポリウレタンフォームを発泡成形する工程において、前記ポリオール組成物とポリイソシアネートとを混合すればよい。
本発明のポリウレタン製造用ポリオール組成物は、ポリオールと、繰り返し単位中にアミノ基を有するアミン系ポリマーと、を含有する。より好ましくは、ポリウレタン製造用ポリオール組成物は、前記発泡原液の原料の内、ポリイソシアネートを除いた残りの原料を構成成分として含む混合物である。各構成成分並びにその量は、前記発泡原液に関連して上述した通りである。
表1に示す配合で、ポリイソシアネート以外の成分を含む混合液(ポリウレタン製造用ポリオール組成物)と、ポリイソシアネートとを混合して、発泡原液を調製した。(表中、原料の量の単位は、特に断りが無い限り質量部である。)その際、ポリウレタン発泡原液の液温は25℃とした。次いで、上記原液の調製直後にこれを、設定温度60℃の金型内にて発泡・硬化させ、脱型し、シートパッド用ポリウレタンフォームを得た。この発泡原液を金型に注入して発泡成形することにより、シート用パッドを製造した。得られたシート用パッドについて、後述の測定方法により性能を評価した。結果を表2に示す。
ポリエーテルポリオール:前記のポリエーテルポリオールAである水酸基価34のポリエーテルポリオール(サンニックスFA703、三洋化成工業株式会社製)
ポリマーポリオール:水酸基価23のポリマーポリオール(サンニックスKC855、三洋化成工業株式会社製)
樹脂化触媒:トリエチレンジアミン(TEDA)(33質量%)とジプロピレングリコール(DPG)(67質量%)の混合物(TEDA-L33、東ソー株式会社製)
泡化触媒:ビス(2-ジメチルアミノエチル)エーテル(BDMAEE)(70質量%)とジプロピレングリコール(DPG)(30質量%)の混合物(TOYOCAT-ET、東ソー株式会社製)
整泡剤:シリコーン系整泡剤(Niax silicone L3627、モメンティブ・パフォーマンス・マテリアルズ社製)
ポリイソシアネート:TDI(80質量%)とMDI(20質量%)の混合物、NCO=44.8%(コスモネートTM20、三井化学SKCポリウレタン株式会社製)
表2に示す添加剤をポリウレタン製造用ポリオール組成物に加えた以外は、参考例1と同様にしてシートパッド用ポリウレタンフォームを得た。得られたシート用パッドについて、後述の測定方法により性能を評価した。結果を表2に示す。
ポリエチレンイミンA:株式会社日本触媒製「エポミン003」(樹脂分:98質量%以上、数平均分子量:300、[1級アミン:2級アミン:3級アミン]モル比=45:35:20)
ポリエチレンイミンB:株式会社日本触媒製「エポミン018」(樹脂分:98質量%以上、数平均分子量:1,800、[1級アミン:2級アミン:3級アミン]モル比=35:35:30)
ポリアリルアミン:ニットーボーメディカル株式会社製「PAA-03」(濃度20質量%の水溶液、数平均分子量:3,000、[1級アミン:2級アミン:3級アミン]モル比=100:0:0)
縦10cm×横10cm×厚み7cmの試験片を使用し、日本工業規格JIS K6400に準拠した方法にて体積と質量を測定し、フォーム密度を算出した。(サンプル数:n=2))
縦10cm×横10cm×厚み7cmの試験片を使用し、JASO M902:2007に準拠した方法にてホルムアルデヒド及びアセトアルデヒドの発生量を測定した。
アミン系ポリマー(添加剤)として、1級アミン及び2級アミンの両方を含むポリエチレンイミンを使用した実施例1~10においては、アルデヒド捕捉剤を使用しない参考例1(対照)と比較して、ホルムアルデヒド及びアセトアルデヒドの両方とも発生が大幅に低減された。
また、1級アミンのみを含むポリアリルアミンを使用した実施例11~15においては、アセトアルデヒドの発生は低減されなかったが、ホルムアルデヒドの発生は大幅に低減された。
他方、アジピン酸ジヒドラジドを使用した比較例1~4においては、十分なアルデヒド低減効果が得られなかった。
Claims (8)
- 繰り返し単位中にアミノ基を有するアミン系ポリマーを含有するポリウレタンフォーム。
- 前記アミン系ポリマーが、ポリビニルアミン、ポリビニルアルキルアミン、ポリアルキレンイミン、ポリアニリン及びこれらの塩からなる群より選ばれる少なくとも1種である請求項1に記載のポリウレタンフォーム。
- 前記アミン系ポリマーが、ポリエチレンイミンである、請求項2に記載のポリウレタンフォーム。
- シート用パッドである請求項1~3のいずれかに記載のポリウレタンフォーム。
- ポリオールと、繰り返し単位中にアミノ基を有するアミン系ポリマーと、を含有するポリウレタン製造用ポリオール組成物。
- 前記アミン系ポリマーを、前記ポリオール100質量部に対して、0.01~5.0質量部含有する請求項5に記載のポリウレタン製造用ポリオール組成物。
- 前記アミン系ポリマーが、ポリビニルアミン、ポリビニルアルキルアミン、ポリアルキレンイミン、ポリアニリン及びこれらの塩からなる群より選ばれる少なくとも1種である請求項6に記載のポリウレタン製造用ポリオール組成物。
- 前記アミン系ポリマーが、ポリエチレンイミンである、請求項7に記載のポリウレタン製造用ポリオール組成物。
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US16/086,423 US20190040254A1 (en) | 2016-03-25 | 2017-03-08 | Polyurethane foam and polyol composition for production of polyurethane |
CN201780018949.6A CN108884202A (zh) | 2016-03-25 | 2017-03-08 | 聚氨酯泡沫和聚氨酯制造用多元醇组合物 |
JP2018507196A JPWO2017163863A1 (ja) | 2016-03-25 | 2017-03-08 | ポリウレタンフォーム、及びポリウレタン製造用ポリオール組成物 |
EP17769908.9A EP3434706A4 (en) | 2016-03-25 | 2017-03-08 | POLYURETHANE FOAM AND POLYOL COMPOSITION FOR THE PRODUCTION OF POLYURETHANE |
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WO2017163863A1 true WO2017163863A1 (ja) | 2017-09-28 |
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PCT/JP2017/009117 WO2017163863A1 (ja) | 2016-03-25 | 2017-03-08 | ポリウレタンフォーム、及びポリウレタン製造用ポリオール組成物 |
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US (1) | US20190040254A1 (ja) |
EP (1) | EP3434706A4 (ja) |
JP (1) | JPWO2017163863A1 (ja) |
CN (1) | CN108884202A (ja) |
WO (1) | WO2017163863A1 (ja) |
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WO2019026897A1 (ja) * | 2017-07-31 | 2019-02-07 | 株式会社ブリヂストン | ポリウレタン用アルデヒド捕捉剤、ポリウレタン、及びポリウレタンの製造方法 |
WO2020004123A1 (ja) * | 2018-06-26 | 2020-01-02 | 株式会社ブリヂストン | 低臭気ポリウレタンフォーム製造用ポリオール組成物 |
WO2020024230A1 (en) * | 2018-08-02 | 2020-02-06 | Dow Global Technologies Llc | Methods for reducing aldehyde emissions in polyurethane foams |
WO2020081301A1 (en) * | 2018-10-18 | 2020-04-23 | Milliken & Company | Polyethyleneimine compounds containing n-halamine and derivatives thereof |
JP2021517600A (ja) * | 2018-03-27 | 2021-07-26 | ミリケン・アンド・カンパニーMilliken & Company | ポリウレタン発泡体のアルデヒド含有量を減少させるための組成物および方法 |
US11466122B2 (en) | 2018-10-18 | 2022-10-11 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
US11518963B2 (en) | 2018-10-18 | 2022-12-06 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
US11732218B2 (en) | 2018-10-18 | 2023-08-22 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
WO2023199561A1 (ja) * | 2022-04-12 | 2023-10-19 | Dic株式会社 | ポリウレタン発泡シートの製造方法、及び、合成皮革の製造方法 |
JP7485490B2 (ja) | 2020-12-29 | 2024-05-16 | ピムサ オ-トモティヴ アノニム シルケティ | ポリウレタン発泡体組成物およびそれの合成のための方法 |
JP7517622B2 (ja) | 2022-04-12 | 2024-07-17 | Dic株式会社 | ポリウレタン発泡シートの製造方法、及び、合成皮革の製造方法 |
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CN115244097A (zh) * | 2020-03-12 | 2022-10-25 | 陶氏环球技术有限责任公司 | 减少聚醚多元醇和聚氨酯泡沫中醛排放的方法 |
CN111533867B (zh) * | 2020-05-26 | 2022-02-25 | 中电保力(北京)科技有限公司 | 一种聚氨酯凝胶泡沫及其制备方法 |
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Cited By (15)
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WO2019026897A1 (ja) * | 2017-07-31 | 2019-02-07 | 株式会社ブリヂストン | ポリウレタン用アルデヒド捕捉剤、ポリウレタン、及びポリウレタンの製造方法 |
JP2021517600A (ja) * | 2018-03-27 | 2021-07-26 | ミリケン・アンド・カンパニーMilliken & Company | ポリウレタン発泡体のアルデヒド含有量を減少させるための組成物および方法 |
JP7039724B2 (ja) | 2018-03-27 | 2022-03-22 | ミリケン・アンド・カンパニー | ポリウレタン発泡体のアルデヒド含有量を減少させるための組成物および方法 |
WO2020004123A1 (ja) * | 2018-06-26 | 2020-01-02 | 株式会社ブリヂストン | 低臭気ポリウレタンフォーム製造用ポリオール組成物 |
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US11466122B2 (en) | 2018-10-18 | 2022-10-11 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
US11518963B2 (en) | 2018-10-18 | 2022-12-06 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
US11299591B2 (en) | 2018-10-18 | 2022-04-12 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
US11732218B2 (en) | 2018-10-18 | 2023-08-22 | Milliken & Company | Polyethyleneimine compounds containing N-halamine and derivatives thereof |
JP7485490B2 (ja) | 2020-12-29 | 2024-05-16 | ピムサ オ-トモティヴ アノニム シルケティ | ポリウレタン発泡体組成物およびそれの合成のための方法 |
WO2023199561A1 (ja) * | 2022-04-12 | 2023-10-19 | Dic株式会社 | ポリウレタン発泡シートの製造方法、及び、合成皮革の製造方法 |
JP7517622B2 (ja) | 2022-04-12 | 2024-07-17 | Dic株式会社 | ポリウレタン発泡シートの製造方法、及び、合成皮革の製造方法 |
Also Published As
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EP3434706A1 (en) | 2019-01-30 |
US20190040254A1 (en) | 2019-02-07 |
JPWO2017163863A1 (ja) | 2019-01-31 |
CN108884202A (zh) | 2018-11-23 |
EP3434706A4 (en) | 2019-03-13 |
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