WO2007018129A1 - 軟質ポリウレタンフォーム、その製造方法および自動車用シート - Google Patents
軟質ポリウレタンフォーム、その製造方法および自動車用シート Download PDFInfo
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- WO2007018129A1 WO2007018129A1 PCT/JP2006/315428 JP2006315428W WO2007018129A1 WO 2007018129 A1 WO2007018129 A1 WO 2007018129A1 JP 2006315428 W JP2006315428 W JP 2006315428W WO 2007018129 A1 WO2007018129 A1 WO 2007018129A1
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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
- C08G18/4866—Polyethers having a low unsaturation value
-
- 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
- C08G18/08—Processes
- C08G18/16—Catalysts
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
-
- 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
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6552—Compounds of group C08G18/63
-
- 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
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7607—Compounds of C08G18/7614 and of C08G18/7657
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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
- C08G2101/00—Manufacture of cellular products
-
- 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
- C08G2110/0008—Foam properties flexible
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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
- C08G2110/0058—≥50 and <150kg/m3
Definitions
- the present invention relates to a flexible polyurethane foam, a method for producing the same, and a vehicle seat.
- Patent Document 1 proposes a method for producing a flexible foam having specific rebound resilience and excellent vibration characteristics! Speak.
- Patent Document 2 proposes a flexible foam having specific air permeability and hardness and improved soundproofing characteristics, and a method for producing the same.
- Patent Document 3 proposes a method for producing a flexible foam that is lightweight and excellent in soundproofing.
- Patent Document 1 International Publication No. 2001Z79323 Pamphlet
- Patent Document 2 Japanese Patent Publication No. 7-59389
- Patent Document 3 Japanese Patent Laid-Open No. 5-209036
- an object of the present invention is to provide a flexible polyurethane foam having excellent vibration characteristics and excellent sound absorption characteristics over a wide frequency band of 500 Hz to 4 kHz, a method for producing the same, and a vehicle seat. It is in.
- the flexible polyurethane foam of the present invention and the method for producing the same are obtained by reacting a polyol-based compound and a polyisocyanate compound in the presence of a foam stabilizer, a foaming agent, and a urethanization catalyst.
- an oxyalkylene group obtained by ring-opening addition polymerization of an alkylene oxide to an initiator using a double metal cyanide complex catalyst as the above-mentioned polyol compound is obtained.
- the polyol (A) was obtained by ring-opening addition polymerization of propylene oxide as an initiator using a double metal cyanide complex catalyst, and then ring-opening addition polymerization of ethylene oxide. It has an oxyethylene terminal structure, the amount of all oxyethylene groups is 10 to 30% by mass in the polyol (A) (100 mass), the number of functional groups is 2 to 6, and the hydroxyl value is 15 to 56 mg KOH / g.
- Propylene oxide was subjected to ring-opening addition polymerization as an initiator using a certain polyol (A1) or a composite metal cyanide complex catalyst, and then ethylene oxide and propylene oxide were randomly subjected to ring-opening addition polymerization.
- Tsu in Echirenokishido by ring-opening addition polymerization has a Okishiechiren terminal structure obtained, the amount of total Okishiechiren group is 10 to 30 mass 0/0 in polio one Le (a) (100 mass), Random part of oxyethylene group Ryogapo
- the polyol (A2) is preferably 10% by mass or less in Reol (A) (100% by mass), has 2 to 6 functional groups, and has a hydroxyl value of l to 56 mgKOHZg.
- the polyol (B) is obtained by random ring-opening addition polymerization of ethylene oxide and propylene oxide as an initiator, and the mass ratio of ethylene oxide and propylene oxide (ethylene oxide Z propylene).
- (Oxide) is 50Z50 to 95Z5, the number of functional groups is 2 to 6, and the hydroxyl value is preferably 22 to 120 mgKOHZg.
- the polymer fine particles (C ′) are preferably fine particles dispersed in a polymer-dispersed polyol (C) obtained by polymerizing monomers in the polyol (C ′ ′).
- the content force polyol of the polyol (A) (A), ( B), (C) a total 100 weight 0/5 to 80 wt% in 0 of content force polyol of the polyol (B) (A), ( It is 0.5 to 15% by mass in a total of 100% by mass of B) and (C), and the content power of polyol (C) 20% of the total of 100% by mass of polyols (A), (B) and (C) It is preferable that it is -80 mass%.
- the flexible polyurethane foam of the present invention is obtained by the method for producing a flexible polyurethane foam of the present invention.
- the automobile seat of the present invention is characterized by comprising the sheet tack having the flexible polyurethane foam force of the present invention.
- the vehicle seat of the present invention has good vibration characteristics and sound absorption characteristics, and can reduce vehicle interior noise without increasing the number of parts and the vehicle mass.
- the flexible polyurethane foam of the present invention is obtained by reacting a polyolefin composite and a polyisocyanate composite in the presence of a foam stabilizer, a foaming agent, and a urethanization catalyst. It is.
- a foam stabilizer e.g., a foam stabilizer, a foaming agent, and a urethanization catalyst.
- Polyoxyalkylene polyol (A) (hereinafter referred to as polyol (A)) has an oxyalkylene group obtained by ring-opening addition polymerization of alkylene oxide using a composite metal cyanide complex catalyst.
- a polyol having an unsaturation of less than 0.04 meqZg By setting the degree of unsaturation of the polyol (A) to less than 0.04 meqZg, the air permeability of the resulting flexible polyurethane foam is reduced, and the vibration characteristics and sound absorption characteristics on the low frequency side are improved.
- the polyol (A) has an oxyalkylene group obtained by subjecting an alkylene oxide to ring-opening addition polymerization using a double metal cyanide complex catalyst in at least a part of the molecule.
- the degree of unsaturation can be made less than 0.04 meqZg, the air permeability can be reduced, and the vibration characteristics and the sound absorption characteristics on the low frequency side can be improved.
- Examples of the double metal cyanide complex catalyst include those described in JP-B-46-27250.
- As the double metal cyanide complex catalyst since it has high polymerization activity, a complex mainly composed of zinc hexocyanocobaltate is preferred, and its ether and Z or alcohol complexes are more preferred.
- ether examples include ethylene glycol dimethyl ether (glyme), ethylene glycol dimethyl ether (diglyme), ethylene glycol mono- tert butyl ether (METB), ethylene glycol mono-tert pentyl ether (METP), diethylene glycol mono-tert butyl ether (DETB), tripropylene Examples thereof include glycol monomethyl ether (TPME). Of these, METB is particularly preferred because the complex is easy to handle during production.
- Examples of the alcohol include methanol, ethanol, propanol, isopropanol, butanol, isobutanol, and tert butyl alcohol. Of these, tert-butyl alcohol is particularly preferred because a highly active catalyst is obtained.
- polyol (A) in order to make the degree of unsaturation less than 0.04 meqZg, propylene oxide is subjected to ring-opening addition polymerization using a double metal cyanide complex catalyst, Then, using a polyol (A1) having an oxyethylene terminal structure obtained by ring-opening addition polymerization of ethylene oxide or a double metal cyanide complex catalyst, propylene oxide is subjected to ring-opening addition polymerization as an initiator. Polyol having an oxyethylene terminal structure obtained by random ring-opening addition polymerization of ethylene oxide and propylene oxide using a double metal cyanide complex catalyst, and then ring-opening addition polymerization of ethylene oxide ( A2) is preferred.
- Polymerization catalysts for ring-opening addition polymerization of ethylene oxide at the molecular terminals include potassium compounds such as potassium hydroxide and potassium methoxide, cesium metal, cesium hydroxide, cesium carbonate, cesium methoxy
- potassium compounds such as potassium hydroxide and potassium methoxide, cesium metal, cesium hydroxide, cesium carbonate, cesium methoxy
- alkali metal compound catalysts such as cesium compounds such as copper; phosphazenium compound catalysts.
- the amount of all oxyethylene groups in the polyols (Al) and (A2) is 10 to 30% by mass, preferably 10 to 25% by mass, in the polyol (A) (100% by mass).
- the amount of total Okishechire down group and 10 mass 0/0 or more the initial strength of the resulting flexible polyurethane foam becomes high.
- the obtained flexible polyurethane foam has fewer closed cells and the flexible polyurethane foam is less likely to shrink.
- the amount of the oxyethylene group in the random part in the polyol (A2) is 10% by mass or less, preferably 9% by mass or less in the polyol (A) (100% by mass).
- the amount of the oxyethylene group in the random part is 10% by mass or less, the number of closed cells of the obtained flexible polyurethane foam is reduced, and the flexible polyurethane foam is contracted.
- the lower limit of the amount of the oxyethylene group in the random part is preferably 1% by mass.
- a compound having 2 to 6 active hydrogen atoms in the molecule is preferable.
- water polyhydric alcohols such as ethylene glycol, propylene glycol, 1,4 butanediol, glycerin, trimethylolpropane, pentaerythritol, diglycerin, meso erythritol, methyl dalcoside, glucose, sorbitol; bisphenol A, etc.
- examples include phenols; condensed compounds such as phenol resin and novolac resin.
- polyhydric alcohols having 2 to 4 active hydrogen atoms are preferred. These initiators may be used alone or in combination of two or more.
- the number of active hydrogen is 7 or more
- the above compounds such as sucrose may be used in combination.
- a compound obtained by ring-opening addition polymerization of propylene oxide to an amine such as ethylenediamine, diethylenetriamine, piperazine, diaminodiphenylmethane, or monoethanolamine may be used as an initiator. Yes.
- the number of functional groups (the number of active hydrogens in the initiator) of the polyol (A) is preferably 2 to 6, and more preferably 2 to 5.
- the resulting flexible polyurethane foam has an appropriate hardness and good compression residual strain.
- the obtained flexible polyurethane foam does not become too hard, and mechanical properties such as elongation become good.
- the hydroxyl value of the polyol (A) is preferably from preferred instrument 15 ⁇ 40MgKOH Zg force s 15 ⁇ 56MgKOHZg, more preferably 15 ⁇ 30MgKOHZg.
- the hydroxyl value is preferably from preferred instrument 15 ⁇ 40MgKOH Zg force s 15 ⁇ 56MgKOHZg, more preferably 15 ⁇ 30MgKOHZg.
- Polyoxyalkylene polyol (B) (hereinafter referred to as polyol (B)) is a random ring-opening addition polymerization of ethylene oxide and an alkylene oxide having 3 or more carbon atoms as an initiator using an alkali metal compound catalyst. It is a polyol obtained.
- propylene oxide is preferable from the viewpoint of mixing with ethylene oxide.
- the ratio of ethylene oxide to 50% by mass or more the closed cell ratio does not become too high, a good communication foam can be obtained, and good vibration characteristics and sound absorption characteristics can be obtained.
- the ratio of ethylenoxide to 95% by mass or less the compatibility with other polyols becomes good, and a good product can be obtained in which the polyol does not separate and the cell does not become rough.
- Examples of the polymerization catalyst include potassium compounds such as potassium hydroxide and potassium methoxide, cesium compounds such as cesium metal, hydroxide and cesium carbonate, cesium carbonate, and cesium methoxide. And alkali metal compound catalysts such as potassium hydroxide and potassium hydroxide are preferred.
- the initiator is more preferably a compound having 2 to 5 compounds, preferably a compound having 2 to 6 active hydrogen atoms in the molecule.
- water polyhydric alcohols such as ethylene glycol, propylene glycol, 1,4 butanediol, glycerin, trimethylolpropane, pentaerythritol, diglycerin, meso erythritol, methyldarcoside, glucose, sorbitol and the like can be mentioned. These may be used alone or in combination of two or more.
- a polyol (B) initiator a polyol obtained by selectively ring-opening addition polymerization of propylene oxide to a polyhydric alcohol is not used.
- the number of functional groups (the number of active hydrogens in the initiator) of the polyol (B) is preferably 2 to 6, more preferably 2 to 5.
- the number of functional groups is preferably 2 to 6, more preferably 2 to 5.
- the hydroxyl value of the polyol (B) is preferably 22 to 120 mgKOHZg, more preferably 30 to 80 mgKOH / g.
- the hydroxyl value of the polyol (B) is preferably 22 to 120 mgKOHZg, more preferably 30 to 80 mgKOH / g.
- polystyrene resin in which polymer fine particles (C ′) are stably dispersed in a polyoxyalkylene polyol matrix is used.
- polyol (C) examples include those produced by a known method.
- Polymer fine particles (C,) include acrylonitrile, styrene, methacrylic acid esters, acrylic acid ester homopolymers of butyl monomers, addition polymer systems such as copolymers; fine particles made of polymers; polyester, polyurea, polyurethane, melamine resin, etc. And fine particles made of a polycondensation polymer.
- Examples of the method for producing the polymer fine particles (C ′) include known methods, and a method for producing polymer fine particles by polymerizing a monomer in a polyol is preferable.
- the polymer fine particles (C ′) dispersed in the polyol can be obtained by polymerizing monomers in the polyol (B), which can be polymer fine particles (C ′) obtained by polymerizing the monomers in the polyol (A).
- the polymer fine particles (C ′) obtained may be the polymer fine particles (C ′) obtained by polymerizing monomers in polyols other than the polyol (A) and polyol (B).
- As the polymer fine particles (C,) in the present invention it is preferable to use polymer fine particles (C ′) obtained by polymerization in polyols other than polyol (A) and polyol (B).
- the content of the polymer fine particles (C ′) is preferably 0.3 to 80% by mass in 100% by mass of the total of the polyols (A) and (B) and the polymer fine particles (C ′). It is more preferable that the content is% by mass.
- the content of the polyol (C ′) is 0.3% by mass or more, the closed cell ratio is lowered and a good flexible polyurethane foam can be obtained.
- the polyol system liquid for producing flexible polyurethane foam can have an appropriate viscosity.
- the polyoxyalkylene polyol used as the base for producing the polyol (C) is not particularly limited, but an alkali metal compound catalyst (preferably a potassium hydroxide catalyst or a cesium hydroxide catalyst) is used as an initiator.
- an alkali metal compound catalyst preferably a potassium hydroxide catalyst or a cesium hydroxide catalyst
- a polyol (C ′ ′) having an oxyethylene terminal structure obtained by ring-opening polymerization of propylene oxide and then ring-opening polymerization of ethylene oxide is preferred.
- the number of functional groups of the polyol (C ") (the number of active hydrogens in the initiator) is preferably 2 to 6, more preferably 2 to 5.
- the hydroxyl value is preferably 15 to 120 mg KOHZg, more preferably 25 to 85 mg KO HZg, and the stability of the foaming behavior is improved by setting the hydroxyl value to 15 mgKOHZg or more, which is obtained by setting the hydroxyl value to 120 mgKOHZg or less.
- the content of the polymer fine particles (C ′) is preferably 50% by mass or less in the polyol (C) (100% by mass), more preferably 1% by mass or more, and more preferably 10 to 40% by mass.
- the polyol composite in the present invention contains polyol (A), polyol (B), and polyol (C).
- the content of the polyol (A) is preferably 10 to 60% by mass, more preferably 5 to 80% by mass, out of a total of 100% by mass of the polyols (A), (B) and (C).
- the content of the polyol (A) is preferably 10 to 60% by mass, more preferably 5 to 80% by mass, out of a total of 100% by mass of the polyols (A), (B) and (C).
- the content of the polyol (B) is preferably 1 to 15% by mass, preferably 0.5 to 15% by mass in 100% by mass of the total of the polyols (A), (B) and (C). More preferred.
- the content of the polyol (B) is preferably 0.5% by mass or more, the closed cell ratio is lowered and a good flexible polyurethane foam can be obtained.
- bubbles are reduced, and vibration characteristics and sound absorption characteristics are improved.
- the content of the polyol (C) is preferably 30 to 75% by mass, preferably 20 to 80% by mass in 100% by mass of the total of the polyols (A), (B) and (C). Is more preferable.
- the content of the polyol (C) is preferably 30 to 75% by mass, preferably 20 to 80% by mass in 100% by mass of the total of the polyols (A), (B) and (C). Is more preferable.
- the content of the polyol (C) is preferably 30 to 75% by mass, preferably 20 to 80% by mass in 100% by mass of the total of the polyols (A), (B) and (C). Is more preferable.
- the closed cell ratio is lowered and a good flexible polyurethane foam can be obtained.
- bubbles are reduced, and vibration characteristics and sound absorption characteristics are improved.
- the polyol compound may contain other polyols in addition to the polyols (A), (B), and (C).
- polystyrene resin examples include polyoxyalkylene polyols in which an alkylene oxide is subjected to ring-opening addition polymerization as an initiator.
- the same initiator as the polyol (A), that is, a compound having 2 to 6 active hydrogen atoms in the molecule is preferable! /.
- the polymerization catalyst include potassium compounds such as potassium hydroxide and potassium methoxide, alkali metal compound catalysts such as cesium compounds such as cesium metal, cesium hydroxide, cesium carbonate, and cesium methoxide; phosphazenium compounds A catalyst etc. are mentioned. Of these, potassium hydroxide and potassium methoxide, which are preferred for alkali metal compound catalysts, are economically superior and particularly preferred.
- the hydroxyl value of the other polyols preferably 15 ⁇ 120mgKOHZg force s, 20 ⁇ 90mgKO HZg is more preferable.
- polystyrene resin may be used alone or in combination of two or more.
- the content of the other polyol is preferably 0 to 50% by mass, more preferably 10 to 50% by mass in the polyol compound (100% by mass).
- a crosslinking agent may be used.
- crosslinking agent a compound having two or more active hydrogens such as a hydroxyl group, a primary amino group, and a secondary amino group is preferable.
- the number average molecular weight of the crosslinking agent is preferably less than 2000, preferably 1500 or less, and more preferably 1000 or less.
- the amount of the cross-linking agent used is preferably 0 to 8 parts by mass, more preferably 1 to 8 parts by mass with respect to 100 parts by mass of the Polio-Louis compound.
- cross-linking agent examples include ethylene glycol, propylene glycol, 1,4 butanediol, neopentyl glycol, 1,6 hexanediol, diethylene glycol, triethylene glycol, dipropylene glycol, glycerin, and trimethylolprono.
- Aliphatic alcohols such as benzene, pentaerythritol, diglycerin, dextrose, sorbitol, sucrose; monoethanolamine, diethanolamine, triethanolamine, bisphenolanol A, ethylenediamine, 3, 5 jetinole 2, 4 (or 2, 6 ) Diaminotoluene (DETDA), 2 black p-Phenylenediamine (CPA), 3, 5 Bis (methylthio) — 2, 4 (or 2, 6) —Diaminotoluene, 1-trifluoromethyl— 3, 5 Aminobenzene, 1 trifluorome Lou 4 chloro 3, 5 Jiaminobenzen, 2, 4 Toruenjiamin, 2, 6 Toruenjiamin, bis (3, 5-dimethyl-4 Aminofue Nyl) methane, 4,4'-diaminodiphenylmethane, ethylenediamine, m-xylylenediamine, 1,4-diaminohexan
- polyisocyanate compound examples include tolylene diisocyanate (TDI), polymethylene polyphenylene isocyanate (crude MDI), and mixtures thereof.
- TDI tolylene diisocyanate
- CAde MDI polymethylene polyphenylene isocyanate
- the amount of polyisocyanate compound used is preferably 80-120 in the isocyanate index, and 85-115.
- the isocyanate index is a numerical value expressed by 100 times the number of isocyanate groups with respect to the total number of all active hydrogens such as polyols, crosslinking agents, and water.
- foaming agent examples include water and inert gas.
- the foaming agent one kind may be used alone, or two or more kinds may be used in combination.
- the amount of the foaming agent is preferably 10 parts by mass or less, particularly preferably 0.1 to 8 parts by mass with respect to 100 parts by mass of the Polio-Louis compound. What is necessary is just to adjust the usage-amount of another foaming agent suitably according to requests
- foam stabilizer examples include silicone foam stabilizers and fluorine-containing compound foam stabilizers. Of these, silicone foam stabilizers with strong foam regulating ability are preferred in order to form good bubbles.
- silicone-based foam stabilizer a silicone-based foam stabilizer for cold cure is preferred, and a silicone-type foam stabilizer for cold cure is particularly preferred.
- silicone foam stabilizers examples include SRX274C, SF 2961, SF2962, SF2964, SF2965, SF2969 manufactured by Toray Dow Co., Ltd .; L5305 manufactured by GE Toshiba Silicone , L5307, L5309 and the like. These can be used alone or in combination of two or more.
- the amount of the foam stabilizer used is preferably 0.1 parts by mass or more and less than 2 parts by mass with respect to 100 parts by mass of the Polio-Louis compound. 0.2 to 1.5 parts by mass is more preferred. preferable.
- the amount of the foam stabilizer used is 0.1 mass part or more, the cell diameter becomes small and cell roughening occurs.
- the amount of the foam stabilizer used is less than 2 parts by mass, the resulting foamed polyurethane foam is reduced in foaming property and air permeability is improved. As a result, sound absorption performance in the high frequency region is improved.
- a conventionally well-known catalyst can be used as a urethane soot catalyst.
- examples include triethylenediamine, dipropylene glycol solutions of bis ((2-dimethylamino) ethyl) ether, aliphatic amines such as morpholines, and organic tin compounds such as tin octoate and dibutyltin dilaurate.
- Urethane catalyst can be used alone or in combination of two or more.
- the amount of the urethanization catalyst used is preferably 1.0 part by mass or less with respect to 100 parts by mass of the polyol-based compound.
- additives may be used in addition to the urethanization catalyst, foaming agent, foam stabilizer, and crosslinking agent described above.
- Additives include fillers such as calcium carbonate and barium sulfate; emulsifiers; antioxidants such as antioxidants and UV absorbers; flame retardants, plasticizers, colorants, antifungal agents, foam breakers, dispersants And anti-discoloring agents.
- the flexible polyurethane foam of the present invention is produced by reacting the above-mentioned polyoligosilane compound with a polyisocyanate compound in the presence of a foaming agent, a foam stabilizer and a urethanization catalyst. Using a low-pressure foaming machine or a high-pressure foaming machine, the reaction injection molding method in which the reactive mixture is directly injected into the mold is preferred.
- the flexible polyurethane foam of the present invention can be produced by either a cold cure method or a hot cure method. Of these, the cold cure method is preferred. [0045] Production conditions for the flexible polyurethane foam of the present invention are not particularly limited as long as the flexible polyurethane foam can be produced.
- the mixture of all raw materials excluding the polyisocyanate compound (hereinafter referred to as the polyol system) and the polyisocyanate compound are adjusted to 15 to 40 ° C., respectively.
- Add a specified amount of polyisocyanate compound to the polyol system stir and mix for 2 to 15 seconds with a high-speed mixer, etc., and then immediately seal it in a container heated to 30 to 80 ° C. Curing for 20 minutes gives a soft polyurethane foam.
- the thickness of the flexible polyurethane foam of the present invention is preferably 30 mm or more when used for a seat cushion. By making the thickness 30 mm or more, it is difficult to get a feeling of bottoming out.
- Core density of the flexible polyurethane foam is more preferably 30 ⁇ 80KgZm 3 is preferably fixture 40 ⁇ 70kg / m 3.
- the core density is measured by a method based on JIS K6400 (1997 edition).
- the core density is measured by removing the central skin (end) of the flexible polyurethane foam and cutting it into a size of 100 mm in length and width and 50 mm in height.
- the resilience modulus of the flexible polyurethane foam of the present invention is preferably less than 70%, more preferably 65% or less, and even more preferably 60% or less.
- the rebound resilience is measured by a method based on JIS K6400 (1997 edition). For measurement of the impact resilience, a sample similar to the core density is cut out and used.
- the resonance magnification of the flexible polyurethane foam of the present invention is preferably 3.5 or less, more preferably 3.0 or less. By setting the resonance magnification to 3.5 or less, the vibration characteristics of the flexible polyurethane foam of the present invention are improved.
- the resonance magnification is measured by a method based on JASO B408-89. The vibration characteristics are measured using a steel plate (load: 50kg) as the pressure plate, the total excitation amplitude is 5mm, and the measurement frequency is 1 to 13Hz.
- the sound absorption characteristics of the flexible polyurethane foam of the present invention are 0.20 or more at 500 Hz and 1 kHz. It is preferably 0.50 or more, 0.80 or more at 2 kHz, and 0.60 or more at 4 kHz.
- the sound absorption characteristics are measured by a method based on JIS A1405.
- the flexible polyurethane foam of the present invention is used for cushions, knocks (backs), seats, etc., and is particularly suitable as seat cushions and backs (backs) for seats for vehicles such as automobiles and railways. Ideal for seat cushions.
- the present invention will be specifically described by way of examples. However, the present invention is not limited thereto.
- the degree of unsaturation of the polyol the degree of unsaturation of the polyol, the hydroxyl value of the polyol, and the viscosity of the polyol are: Measured according to JIS K1557 (1970 version).
- Polyol A1 Using propylene oxide ring-opening addition polymerization of glycerin as the initiator and a molecular weight of 1000 polyol, and using DMC (zinc hexanoconoate monovalent complex catalyst) as the polymerization catalyst for the initiator, propylene oxide was opened. Cycloaddition polymerization was performed. Furthermore, a dehydrated alcohol was prepared using an aqueous solution of potassium hydroxide as a polymerization catalyst, and a ring-opening addition polymerization of ethylene oxide at the terminal was performed to obtain a polyol A1 having an oxyethylene terminal structure. The amount of all oxyethylene groups was 16% by mass in polyol A1 (100% by mass). The hydroxyl value was 24 mgKOHZg, the number of functional groups was 3, the viscosity was 1600 mPa's, and the degree of unsaturation was 0.020 meqZg.
- Polyol A2 Polyol having a molecular weight of 1000 obtained by ring-opening addition polymerization of propylene oxide to glycerin was used as an initiator, and DMC (zinc hexanoconolate-METB complex catalyst) was used as the polymerization catalyst for the initiator.
- polyols Kishido A2 100 mass 0/0 of the ring-opening addition polymerization until 21 weight 0/0. Then, propylene oxide and ethylene oxide were randomly subjected to ring-opening addition polymerization at a mass ratio of 90Z10.
- a dehydrated alcohol was prepared using an aqueous solution of potassium hydroxide as a polymerization catalyst, and a ring-opening addition polymerization of ethylene oxide at the terminal was performed to obtain polyol A2 having an oxyethylene terminal structure.
- the amount of all oxethylene groups was 21% by mass in polyol A2 (100% by mass). Random part The amount of xylene group was 5% by mass in polyol A2 (100% by mass).
- the amount of Okishiechiren group of the terminal O key sheet ethylene block chain, polyol A2 (100 mass 0/0) in was 15 mass%.
- the hydroxyl value was 24 mgKOHZg, the number of functional groups was 3, the viscosity was 1650 mPa's, and the degree of unsaturation was 0.016 meqZg.
- Polyol B1 Glycerin was used as an initiator, and potassium hydroxide was used as a polymerization catalyst for the initiator. Ethylene oxide and propylene oxide were randomly ring-opened and added at a mass ratio of 80Z20 to obtain polyol B1. .
- the hydroxyl value was 48 mg KOHZg, the number of functional groups was 3, and the viscosity was 900 mPa's.
- Polyol B2 Dipropylene glycol is used as an initiator, and ethylene oxide and propylene oxide are randomly ring-opening addition polymerized at a mass ratio of 80Z20 using potassium hydroxide as a polymerization catalyst for the initiator. Thus, polyol B2 was obtained. The hydroxyl value was 55 mg KOHZg, the number of functional groups was 2, and the viscosity was 450 mPa's.
- Polyol C1 Acrylonitrile was polymerized in polyol D3 described later to obtain a polymer-dispersed polyol (polyol C1) having a solid concentration of 20% by mass.
- the hydroxyl value was 19 mg KOH Zg, the number of functional groups was 3, and the viscosity was 5000 mPa's.
- Polyol C2 Ring-opening addition polymerization of propylene oxide using a mixture of glycerin and pentaerythritol in a mass ratio of 50:50 as an initiator and using potassium hydroxide as a polymerization catalyst to form a hydroxyl group
- a polyol with a value of 28 mg KOHZg was obtained.
- a mixture of acrylo-tolyl and styrene in a mass ratio of 45Z55 was polymerized in the polyol to obtain a polymer-dispersed polyol (polyol C2) having a solid concentration of 22% by mass.
- the hydroxyl value was 22 mgKOHZg and the viscosity was 3700 mPa's.
- Polyol C3 ring-opening addition polymerization of propylene oxide using glycerin as an initiator, and potassium hydroxide as a polymerization catalyst for the initiator, and then ring-opening addition polymerization of ethylene oxide at the terminal to perform oxyethylene terminal
- a polyol having a structure was obtained.
- the amount of all oxetylene groups was 15% by mass in the polyol (100% by mass).
- the number of functional groups was 3, and the hydroxyl value was 34 mgKOHZg.
- Acrylonitrile and sulphate in the polyol The mass ratio of the styrene 77. 5/22.
- Polyol D1 Propylene oxide is subjected to ring-opening addition polymerization using pentaerythritol as an initiator and potassium hydroxide as a polymerization catalyst for the initiator, and further, ethylene oxide is subjected to ring-opening addition polymerization at the terminal to form an oxyethylene terminal structure. Polyol D1 having was obtained. The amount of all the oxyethylene groups was 13% by mass in polyol D1 (100% by mass). The hydroxyl value was 28 mgKOHZg, the number of functional groups was 4, the viscosity was 1200 mPa's, and the degree of unsaturation was 0.06 meqZg.
- Polyol D2 Ring-opening addition polymerization of propylene oxide using glycerin as an initiator, and potassium hydroxide as a polymerization catalyst for the initiator, and further ring-opening addition polymerization of ethylene oxide at the terminal to oxyethylene terminal Polyol D2 having a structure was obtained.
- the amount of all oxethylene groups was 15% by mass in polyol D2 (100% by mass).
- the hydroxyl value was 33 mgKOHZg, the number of functional groups was 3, the viscosity was 900 mPa's, and the degree of unsaturation was 0.07 meqZg.
- Polyol D3 ring-opening addition polymerization of propylene oxide using glycerin as an initiator and cesium hydroxide as a polymerization catalyst for the initiator, and further ring-opening addition polymerization of ethylene oxide at the terminal to oxyethylene terminal Polyol D3 having a structure was obtained.
- the amount of all oxethylene groups is 16% by mass in polyol D3 (100% by mass), the hydroxyl value is 24 mg KOHZg, the number of functional groups is 3, the viscosity is 1300 mPa's, and the degree of unsaturation is 0.0. It turned out with 4meqZ g.
- Crosslinking agent E Diethanolamine.
- Crosslinker F Glycerin.
- Crosslinking agent G a mixture of polyols obtained by ring-opening addition polymerization of ethylene oxide using pentaerythritol and dipropylene glycol as initiators and using potassium hydroxide as a polymerization catalyst for the initiator It has a hydroxyl value of 75mgKOHZg and a viscosity of 1200mP. Polyoxyethylene polyol which is a ⁇ s.
- Cross-linking agent H ring-opening addition polymerization of propylene oxide using sorbitol as an initiator and potassium hydroxide as a polymerization catalyst to the initiator, and further ring-opening addition polymerization of ethylene oxide at the terminal Polyoxyethylene polypropylene polyol having a total amount of oxyethylene groups of 28% by mass in a polyol (100% by mass), a hydroxyl value of 450 mgKOHZg, and a viscosity of 7900 mPa's.
- Oxidation catalyst Diethylene glycol solution of triethylenediamine (manufactured by Tosohichi Co., Ltd., trade name: TEDA-L33).
- Foaming catalyst Dipropylene glycol solution of bis ((2-dimethylamino) ethyl) ether (trade name: Toyocat ET, manufactured by Tosoh Corporation).
- Table 1 shows the mixing ratio of raw materials.
- the numerical value of the amount of raw material shown in Table 1 represents parts by mass.
- Example 1 is a comparative example and examples 2-5 are examples.
- a polyol system was prepared by mixing the raw materials except the polyisocyanate compound.
- the polyol system was filled into one tank of a two-component high-pressure foaming machine (manufactured by Canon, head: FLP18 (i) -L type), and the liquid temperature was adjusted to 25 ⁇ 2 ° C.
- the other tank was filled with a polyisocyanate compound and the liquid temperature was adjusted to 25 ⁇ 2 ° C.
- raw materials for both tanks The mixture was discharged, mixed at a high pressure, poured into a mold, foamed and cured, and demolded after 6 minutes to obtain a flexible polyurethane foam.
- the raw material discharge conditions were a discharge pressure of 15 MPa and a discharge amount of 300 gZ seconds.
- As the mold an inner dimension of 400 mm X 400 mm X 100 mm was used.
- the mold temperature was 60 ° C ⁇ 2 ° C for the upper and lower mold temperatures.
- the obtained flexible polyurethane foam was evaluated for density, foam physical properties (hardness (25% ILD (Indentation Load Deflection)), rebound resilience), breathability, vibration characteristics, and sound absorption characteristics. The results are shown in Table 1.
- Density, hardness (25% ILD), rebound resilience, air permeability Measured according to JIS K6400 (1997 edition).
- Vibration characteristics Resonant frequency, resonance magnification, and 6 Hz transmission rate were measured in accordance with JASO Hz408-89.
- the measurement conditions were a steel plate (load: 50 kg) as a pressure plate, a total excitation amplitude of 5 mm, and a measurement frequency of 1 to 13 Hz.
- Sound absorption characteristics Normal incident sound absorption characteristics were measured in accordance with JIS A1405.
- a normal incidence sound absorption measurement tube manufactured by Bruel & Kjaer, model number 4206 was used.
- As the sound absorption measurement sample a 100 mm circle and a thickness of 25 mm were used for 0.5 kHz and 1 kHz, and a 29 mm circle and a thickness of 25 mm were used for 2 kHz and 4 kHz.
- the flexible polyurethane foam of the present invention has a particularly low resonance magnification in terms of vibration characteristics.
- the sound absorption characteristics generally tend to depend on the mass in the low frequency region (1 kHz or less), but the flexible polyurethane foam of the present invention has high sound absorption characteristics even at the same density (Examples 1 and 2). comparison).
- higher air permeability is advantageous.
- the vibration characteristics are high, the sound absorption characteristics tend to be good despite the low air permeability (Example 1 and Example). Comparison with 2-5). From the above, high vibration absorbing foam The fact that it was effective in the attenuation of the gear was also very effective.
- the flexible polyurethane foam of the present invention has good vibration absorption characteristics and good sound absorption characteristics in a wide range from a low frequency region to a high frequency region, the seat cushion and seat back of a vehicle seat such as an automobile. Useful as a backrest. It should be noted that the entire contents of the specification, claims, and abstract of Japanese Patent Application No. 2005-227632 filed August 5, 2005 are hereby incorporated herein by reference. It is something that is incorporated.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800289725A CN101238163B (zh) | 2005-08-05 | 2006-08-03 | 软质聚氨酯泡沫塑料、其制造方法以及汽车用座椅 |
JP2007529540A JP5526476B2 (ja) | 2005-08-05 | 2006-08-03 | 軟質ポリウレタンフォーム、その製造方法および自動車用シート |
EP06782288A EP1911783A4 (en) | 2005-08-05 | 2006-08-03 | FLEXIBLE POLYURETHANE FOAM, METHOD FOR PRODUCING SAME, AND SHEET FOR MOTOR VEHICLE |
KR1020087002847A KR101307632B1 (ko) | 2005-08-05 | 2006-08-03 | 연질 폴리우레탄 폼, 그 제조 방법 및 자동차용 시트 |
US11/944,002 US20080085945A1 (en) | 2005-08-05 | 2007-11-21 | Flexible polyurethane foam, process for its production, and seat for automobile |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-227632 | 2005-08-05 | ||
JP2005227632 | 2005-08-05 |
Publications (1)
Publication Number | Publication Date |
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WO2007018129A1 true WO2007018129A1 (ja) | 2007-02-15 |
Family
ID=37727314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/315428 WO2007018129A1 (ja) | 2005-08-05 | 2006-08-03 | 軟質ポリウレタンフォーム、その製造方法および自動車用シート |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080085945A1 (ja) |
EP (1) | EP1911783A4 (ja) |
JP (1) | JP5526476B2 (ja) |
KR (1) | KR101307632B1 (ja) |
CN (1) | CN101238163B (ja) |
TW (1) | TWI382996B (ja) |
WO (1) | WO2007018129A1 (ja) |
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JP2010260928A (ja) * | 2009-04-30 | 2010-11-18 | Bridgestone Corp | シートパッド用ポリウレタンフォーム |
JP2011174063A (ja) * | 2010-01-29 | 2011-09-08 | Sanyo Chem Ind Ltd | 軟質ポリウレタンフォームの製造方法 |
JP2013018919A (ja) * | 2011-07-13 | 2013-01-31 | Bridgestone Corp | シートパッド用ポリウレタンフォーム |
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KR101115276B1 (ko) * | 2003-09-19 | 2012-03-05 | 아사히 가라스 가부시키가이샤 | 연질 폴리우레탄 폼 및 그 제조 방법 |
TW200801060A (en) | 2006-02-28 | 2008-01-01 | Asahi Glass Co Ltd | Flexible polyurethane foam and process for producing the same |
KR20090068216A (ko) * | 2006-09-27 | 2009-06-25 | 아사히 가라스 가부시키가이샤 | 연질 폴리우레탄폼의 제조 방법 |
DK2077287T3 (da) * | 2006-10-25 | 2013-07-22 | Asahi Glass Co Ltd | Fremgangsmåde til fremstilling af blødt polyurethanskum |
JP5303885B2 (ja) | 2007-09-18 | 2013-10-02 | 旭硝子株式会社 | 軟質ポリウレタンフォームの製造方法および軟質ポリウレタンフォーム |
EP2194084A1 (en) * | 2007-09-28 | 2010-06-09 | Asahi Glass Company, Limited | Method for producing flexible polyurethane foam, method for producing hot press molded article, and hot press molded article |
KR20120088696A (ko) * | 2009-10-05 | 2012-08-08 | 아사히 가라스 가부시키가이샤 | 연질 폴리우레탄 폼의 제조 방법 및 시트 |
KR20130094688A (ko) * | 2010-04-30 | 2013-08-26 | 아사히 가라스 가부시키가이샤 | 폴리옥시알킬렌폴리올, 폴리머 분산 폴리올, 및 연질 폴리우레탄폼, 그리고 이들의 제조 방법 |
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JP6823982B2 (ja) | 2016-09-21 | 2021-02-03 | 株式会社東洋クオリティワン | シートパッド |
JP6746448B2 (ja) * | 2016-09-21 | 2020-08-26 | 株式会社東洋クオリティワン | ポリオール組成物および軟質ポリウレタンフォーム |
CN107857865B (zh) * | 2017-11-20 | 2021-07-16 | 郑州精益达汽车零部件有限公司 | 一种汽车座椅用全水环保阻燃型胀气记忆聚氨酯泡沫及其制备方法 |
EP4122975B1 (en) * | 2020-04-23 | 2024-04-03 | Tosoh Corporation | Polyol composition for soft polyurethane foam molding, composition for soft polyurethane foam molding, soft polyurethane foam, and production method for same |
EP3940012A1 (de) * | 2020-07-16 | 2022-01-19 | Evonik Operations GmbH | Stickstofffreie und stickstoffarme vernetzende additive für kaltblockweichschaum mit verbesserten kompressions- und alterungseigenschaften |
CN116333259B (zh) * | 2021-12-22 | 2024-07-26 | 江苏长顺高分子材料研究院有限公司 | 吸音聚氨酯材料及其制备方法与用途 |
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- 2006-08-03 KR KR1020087002847A patent/KR101307632B1/ko not_active IP Right Cessation
- 2006-08-03 CN CN2006800289725A patent/CN101238163B/zh not_active Expired - Fee Related
- 2006-08-03 EP EP06782288A patent/EP1911783A4/en not_active Withdrawn
- 2006-08-03 JP JP2007529540A patent/JP5526476B2/ja not_active Expired - Fee Related
- 2006-08-04 TW TW095128705A patent/TWI382996B/zh not_active IP Right Cessation
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2007
- 2007-11-21 US US11/944,002 patent/US20080085945A1/en not_active Abandoned
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JP2013018919A (ja) * | 2011-07-13 | 2013-01-31 | Bridgestone Corp | シートパッド用ポリウレタンフォーム |
Also Published As
Publication number | Publication date |
---|---|
CN101238163A (zh) | 2008-08-06 |
US20080085945A1 (en) | 2008-04-10 |
JPWO2007018129A1 (ja) | 2009-02-19 |
EP1911783A1 (en) | 2008-04-16 |
TW200728338A (en) | 2007-08-01 |
KR101307632B1 (ko) | 2013-09-12 |
TWI382996B (zh) | 2013-01-21 |
EP1911783A4 (en) | 2011-07-13 |
KR20080039402A (ko) | 2008-05-07 |
CN101238163B (zh) | 2011-02-09 |
JP5526476B2 (ja) | 2014-06-18 |
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