WO2015064084A1 - 車両座席シート用パッドの製造方法 - Google Patents
車両座席シート用パッドの製造方法 Download PDFInfo
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- WO2015064084A1 WO2015064084A1 PCT/JP2014/005439 JP2014005439W WO2015064084A1 WO 2015064084 A1 WO2015064084 A1 WO 2015064084A1 JP 2014005439 W JP2014005439 W JP 2014005439W WO 2015064084 A1 WO2015064084 A1 WO 2015064084A1
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- WO
- WIPO (PCT)
- Prior art keywords
- weight
- vehicle seat
- foam
- active hydrogen
- examples
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
- B29C44/355—Characteristics of the foam, e.g. having particular surface properties or structure
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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
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
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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
- C08G18/08—Processes
- C08G18/14—Manufacture of cellular products
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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
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- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3278—Hydroxyamines containing at least three hydroxy groups
- C08G18/3281—Hydroxyamines containing at least three hydroxy groups containing three hydroxy 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
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- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3823—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing -N-C=O groups
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- C08G18/30—Low-molecular-weight compounds
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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
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- 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
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- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy 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
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- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
- C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene end 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
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
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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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0044—Stabilisers, e.g. against oxydation, light or heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2713/00—Use of textile products or fabrics for preformed parts, e.g. for inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/007—Hardness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
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- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/771—Seats
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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
- C08G2110/0008—Foam properties flexible
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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
- C08G2110/00—Foam properties
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
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- C08G2110/005—< 50kg/m3
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
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- C08G2110/0058—≥50 and <150kg/m3
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2350/00—Acoustic or vibration damping material
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
Definitions
- the present invention relates to a method for manufacturing a pad for a vehicle seat.
- 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 high cushioning properties is used for the vehicle seat pad, but formaldehyde, acetaldehyde, etc. 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 method of applying an aldehyde scavenger on the surface of a sheet pad. Further, a method of mixing a hydrazine compound having an action of decomposing aldehydes with a polyol compound (Patent Document 2) is known.
- An object of this invention is to provide the method of manufacturing the pad for vehicle seat sheets in which aldehyde does not spread
- the active hydrogen component (A) and the organic polyisocyanate (B) are added in the presence of a foaming agent (C), a urethanization catalyst (D), a foam stabilizer (E), and an additive (F).
- a process for producing a vehicle seat pad comprising the step (I) of obtaining a flexible polyurethane foam by reacting, wherein (C) contains water and (F) is represented by the following general formula (1) It contains at least one selected from the group consisting of urea compound (F1), amino acid (F2) and polyhydric phenol (F3), the core density of the flexible polyurethane foam is 25 to 90 kg / m 3 , and the resilience is 50
- This is a manufacturing method of a vehicle seat pad having a hardness of ⁇ 75% and a hardness (25% ⁇ ILD) of 150 to 400 N / cm 2 .
- R represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a hydroxyl group, which may be the same or different, but at least one represents hydrogen.
- n represents an integer of 0 to 3.
- the method for producing a vehicle seat pad according to the present invention can produce a vehicle seat pad with less aldehyde diffusion. Moreover, the curability at the time of manufacture is also favorable.
- the active hydrogen component (A) used in the present invention has a number average functional group number of 2 to 8, a hydroxyl value of 14 to 54 (mgKOH / g), and an oxyethylene unit content of 5 from the viewpoint of moldability and mechanical properties. It is preferable to contain a polyether polyol (A0) of ⁇ 30% by weight.
- the number average functional group number of (A0) is 2 to 8, preferably 2 to 6, more preferably 2 to 5 from the viewpoints of moldability and mechanical properties.
- the number of functional groups of the polyether polyol [(A0) and (A1) described later] is considered to be the same as the number of functional groups of the active hydrogen-containing compound as a starting material.
- the hydroxyl value of (A0) is 14 to 54 (mgKOH / g), and from the viewpoint of curability and mechanical properties, it is preferably 17 to 50 (mgKOH / g), more preferably 20 to 45 (mgKOH / g). is there.
- the hydroxyl value in the present invention is measured by the method defined in JIS K1557-1.
- the content of the oxyethylene unit in (A0) is 5 to 30% by weight, preferably 5 to 25% by weight, and more preferably 5 to 20% by weight from the viewpoint of moldability and mechanical properties.
- (A0) is a compound containing at least two (preferably 2 to 8) active hydrogens (polyhydric alcohol, polyhydric phenol, amine, polycarboxylic acid, phosphoric acid, etc.) and alkylene oxide (hereinafter, And a compound having a structure to which AO is abbreviated).
- Examples of the polyhydric alcohol include dihydric alcohols having 2 to 20 carbon atoms, trihydric alcohols having 3 to 20 carbon atoms, and 4 to 8 polyhydric alcohols having 5 to 20 carbon atoms.
- Examples of the dihydric alcohol having 2 to 20 carbon atoms include linear or branched aliphatic diols and alicyclic diols.
- Examples of the linear or branched aliphatic diol include alkylene glycols, and specifically include ethylene glycol, 1,2- and 1,3-propylene glycol, 1,3- and 1,4-butanediol, 1 , 6-hexanediol and neopentyl glycol.
- Examples of the alicyclic diol include cycloalkylene glycol, and specific examples include cyclohexane diol and cyclohexane dimethanol.
- Examples of the trivalent alcohol having 3 to 20 carbon atoms include aliphatic triol.
- Examples of the aliphatic triol include alkanetriol, and specific examples include glycerin, trimethylolpropane, trimethylolethane, and hexanetriol.
- Examples of the 4- to 8-valent polyhydric alcohol having 5 to 20 carbon atoms include aliphatic polyols and saccharides.
- Aliphatic polyols include alkane polyols, and specific examples include pentaerythritol, sorbitol, mannitol, sorbitan, diglycerin, and dipentaerythritol.
- examples of the aliphatic polyol include an intramolecular dehydration product of alkanetriol and alkane polyol, and an intermolecular dehydration product of alkanetriol and / or alkane polyol.
- Specific examples of the saccharide include sucrose, glucose, mannose, fructose, and methylglucoside, and these derivatives are also included.
- Examples of the polyvalent (2 to 8 valent) phenols include monocyclic polyphenols, bisphenols, phenol / formaldehyde condensates (novolaks), polyphenols, and combinations of two or more of these.
- Examples of monocyclic polyphenols include pyrogallol, hydroquinone, and phloroglucin.
- Examples of bisphenol include bisphenol A, bisphenol F, and bisphenol sulfone.
- Examples of the polyphenol include those described in US Pat. No. 3,265,641.
- amines include those having 2 to 8 active hydrogens, and include ammonia, linear or branched aliphatic amines, aromatic amines, alicyclic amines, and heterocyclic amines.
- linear or branched aliphatic amine include alkanolamines having 2 to 20 carbon atoms (monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, aminoethylethanolamine, etc.), alkylamines having 1 to 20 carbon atoms (n- Butylamine and octylamine), alkylene diamines having 2 to 6 carbon atoms (ethylene diamine, propylene diamine, hexamethylene diamine, etc.) and polyalkylene polyamines having 4 to 20 carbon atoms (having 2 to 6 carbon atoms in the alkylene group) Specific examples thereof include diethylenetriamine and triethylenetetramine.
- aromatic amines include aromatic mono- or polyamines having 6 to 20 carbon atoms (aniline, phenylenediamine, tolylenediamine, xylylenediamine, diethyltoluenediamine, methylenedianiline, diphenyletherdiamine, and the like).
- alicyclic amine examples include alicyclic amines having 4 to 20 carbon atoms (such as isophorone diamine, cyclohexylene diamine, and dicyclohexyl methane diamine).
- heterocyclic amine include heterocyclic amines having 4 to 20 carbon atoms (piperazine, aminoethylpiperazine, and those described in Japanese Patent Publication No. 55-21044), and the like.
- polycarboxylic acid examples include aliphatic polycarboxylic acids having 4 to 18 carbon atoms (such as succinic acid, adipic acid, sebacic acid, glutaric acid and azelaic acid), and aromatic polycarboxylic acids having 8 to 18 carbon atoms (phthalic acid, Terephthalic acid, isophthalic acid, trimellitic acid, etc.). Two or more of these active hydrogen-containing compounds may be used in combination. Of these, polyhydric alcohols are preferred from the viewpoints of curability and mechanical properties.
- 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 1,2-butylene oxide
- styrene oxide and the like.
- PO is preferable from the viewpoint of productivity of the active hydrogen component (A).
- 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.
- Catalysts used at the time of AO addition include alkali catalysts (KOH, CsOH, etc.), catalysts described in JP-A No. 2000-344881 [tris (pentafluorophenyl) borane, etc.], and JP-A No. 11-120300. (Such as magnesium perchlorate) may also be used (the same applies to the following AO adducts).
- the content of (A0) is preferably 8 to 98% by weight, more preferably 10 to 97% by weight, particularly preferably 12 to 12% by weight from the viewpoint of curability and mechanical properties based on the weight of the active hydrogen component (A). 95% by weight, most preferably 20 to 90% by weight.
- the active hydrogen component (A) may contain other active hydrogen components in addition to the polyether polyol (A0).
- the polyether polyol (A1) other than (A0), the polyester polyol ( A2), polyhydric alcohol (A3), polyols and monools (A4) other than those mentioned above, polymer polyols (A5) obtained by polymerizing vinyl monomers in these polyols, amines (A6) and these A mixture etc. are mentioned.
- the polyether polyol (A1) other than (A0) has a structure in which AO is added to a compound (polyhydric alcohol, polyhydric phenol, amine, polycarboxylic acid, phosphoric acid, etc.) containing at least two active hydrogens. These are compounds that do not fall under (A0), and may be used alone or in combination of two or more.
- Examples of the compound containing active hydrogen include the same compounds as those in the polyether polyol (A0).
- polyhydric alcohols are preferable, and from the viewpoints of curability and mechanical properties, aliphatic polyhydric alcohols and alicyclic polyhydric alcohols are particularly preferable, and aliphatic polyhydric alcohols are particularly preferable. is there.
- AO added to a compound containing active hydrogen is preferably one having 2 to 8 carbon atoms from the viewpoint of moldability.
- EO, PO, 1,2-, 1,3-, 1,4- and 2 Examples include 3-butylene oxide, styrene oxide, and combinations of two or more of these (block and / or random addition).
- a combination of PO and PO and EO is preferable, and a combination of PO and EO is more preferable.
- a catalyst used at the time of AO addition in addition to an alkali catalyst (KOH, CsOH, etc.), a catalyst described in JP-A No. 2000-344881 [Tris (pentafluorophenyl) borane, etc.], described in JP-A No. 11-120300
- a catalyst such as magnesium perchlorate may be used.
- polyester polyol (A2) examples include the following (1) to (5).
- Esters of polyhydric alcohols and polycarboxylic acids or ester-forming derivatives thereof Polyhydric alcohols are dihydric alcohols (ethylene glycol, diethylene glycol, 1,2- and 1,3-propylene glycol, 1,3- 1,4-butanediol, 1,6-hexanediol and neopentyl glycol), polyether polyols (preferably diols), and mixtures thereof with trihydric or higher polyhydric alcohols (such as glycerin and trimethylolpropane). ⁇ Etc.
- polycarboxylic acids or ester-forming derivatives thereof include acid anhydrides and lower alkyl esters (alkyl group having 1 to 4 carbon atoms). Adipic acid, sebacic acid, maleic anhydride, phthalic anhydride, and dimethyl terephthalate Etc. (2) Condensation reaction product with carboxylic anhydride and AO (3) AO (EO, PO, etc.) adduct of (1) and (2) above (4) Polylactone polyol
- polyhydric alcohol as an initiator examples thereof include those obtained by ring-opening polymerization of a lactone (such as ⁇ -caprolactone).
- Polycarbonate polyol For example, the reaction material of the said polyhydric alcohol and alkylene carbonate is mentioned.
- polyhydric alcohol (A3) examples include dihydric alcohols having 2 to 20 carbon atoms ⁇ linear or branched aliphatic diol (ethylene glycol, propylene glycol, 1,3- and 1,4-butanediol, 1,6-hexane.
- Diols and alkylene glycols such as neopentyl glycol; polyalkylene glycols such as diethylene glycol and dipropylene glycol) and alicyclic diols (cycloalkylene glycols such as cyclohexanediol and cyclohexanedimethanol) ⁇ , trihydric alcohols having 3 to 20 carbon atoms ⁇ Aliphatic triols (alkanetriols such as glycerin, trimethylolpropane, trimethylolethane and hexanetriol) ⁇ ; 4 to 8 or more polyhydric alcohols having 5 to 20 carbon atoms ⁇ aliphatic polyol (penta Alkane polyols such as lithritol, sorbitol, mannitol, sorbitan, diglycerin and dipentaerythritol and intramolecular or intermolecular dehydrates of these or alkanetriol; and sugars such as sucrose
- polyols and monools (A4) other than the above include polydiene polyols such as polybutadiene polyol and hydrogenated products thereof; acrylic polyols, JP-A-58-57413 and JP-A-58-57414 Hydroxyl group-containing vinyl polymers described; natural fat-based polyols such as castor oil; modified natural fat-based polyols such as castor oil-modified products (polyhydric alcohol transesterification products, hydrogenated products, etc.); International Publication WO 98 / Terminal hydrogen radical functional group-containing active hydrogen compounds (including monools) described in Japanese Patent No. 44016; modified polyol obtained by jumping polyether polyol with alkylene dihalide such as methylene dihalide; OH terminal of polyether polyol A prepolymer; and the like.
- the polymer polyol (A5) is obtained by polymerizing the ethylenically unsaturated monomer (p) in the presence of a radical polymerization initiator in at least one of (A0) and (A1) to (A4).
- a polymer in which the polymer (p) is stably dispersed in a polyol can be used.
- (A5) those obtained by polymerizing (p) in (A0) or (A1) are preferable from the viewpoint of dispersion stability.
- Specific examples of the polymerization method include the methods described in US Pat. No. 3,383,351, Japanese Examined Patent Publication No. 39-25737, and the like.
- (A0) and (A1) to (A4) used as a raw material for the polymer polyol (A5) are not included in (A0) and (A1) to (A4).
- radical polymerization initiator those that generate a free radical to initiate polymerization can be used, such as 2,2′-azobisisobutyronitrile, 2,2′-azobis (2,4-dimethylvaleronitrile), Azo compounds such as 2,2′-azobis (2-methylbutyronitrile); organic peroxides such as dibenzoyl peroxide, dicumyl peroxide, benzoyl peroxide, lauroyl peroxide and persuccinic acid; persulfates And inorganic peroxides such as perborate; In addition, these can use 2 or more types together.
- Examples of the ethylenically unsaturated monomer (p) include unsaturated nitrile (p1), aromatic ring-containing monomer (p2), (meth) acrylic acid ester (p3), other ethylenically unsaturated monomers (p4) and their 2 A mixture of seeds or more may be mentioned.
- Examples of (p1) include acrylonitrile and methacrylonitrile.
- Examples of (p2) include styrene, ⁇ -methylstyrene, hydroxystyrene, chlorostyrene and the like.
- (P3) includes those composed of C, H and O atoms, for example, (meth) acrylic acid alkyl ester (alkyl group having 1 to 24 carbon atoms) [methyl (meth) acrylate, butyl (meth) acrylate, nonyl (Meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, eicosyl (meth) acrylate, docosyl (meth) acrylate, etc.], hydroxyalkyl (2 to 5 carbon atoms) (meth) acrylate [hydroxyethyl (meth) Acrylates and the like] and hydroxypolyoxyalkylene mono (meth) acrylates [alkylene group having 2 to 4 carbon atoms, polyoxyalkylene chain number average molecular weight of 200 to 1000, etc.].
- (P4) includes ethylenically unsaturated carboxylic acids and derivatives thereof, specifically (meth) acrylic acid and (meth) acrylamide, etc .; aliphatic or alicyclic hydrocarbon monomers, specifically alkenes ( Ethylene, propylene, norbornene, etc.) and alkadienes (butadiene, etc.); fluorine-based vinyl monomers, specifically fluorine-containing (meth) acrylates (perfluorooctylethyl methacrylate, perfluorooctylethyl acrylate, etc.), etc .; chlorine -Based vinyl monomers, specifically vinylidene chloride, etc .; nitrogen-containing vinyl monomers other than those mentioned above, specifically nitrogen-containing (meth) acrylates (diaminoethyl methacrylate, morpholinoethyl methacrylate, etc.); and vinyl-modified silicones Etc.
- the weight ratio of (p1), (p2), (p3) and (p4) in the ethylenically unsaturated monomer (p) can be changed according to the required physical properties of the polyurethane and is particularly limited.
- An example is as follows. Based on the total weight of (p), (p1) and / or (p2) is preferably 50 to 100% by weight, more preferably 80 to 100% by weight.
- the weight ratio of (p1) and (p2) is not particularly limited, but is preferably 100/0 to 20/80.
- (P3) is preferably 0 to 50% by weight, more preferably 0 to 20% by weight.
- (P4) is preferably 0 to 10% by weight, more preferably 0 to 5% by weight.
- the content of the polymer (p) in the polymer polyol (A5) is preferably 50% by weight or less, more preferably 3 to 30% by weight, from the viewpoint of moldability, based on the total weight of (A5). It is.
- Examples of the amine (A6) include those having 2 to 8 or more active hydrogen atoms, ammonia; aliphatic amines having 2 to 20 carbon atoms (monoethanolamine, diethanolamine, triethanolamine). , Isopropanolamine, aminoethylethanolamine, etc.), alkylamines having 1-20 carbon atoms (n-butylamine, octylamine, etc.), alkylenediamines having 2-6 carbon atoms (ethylenediamine, propylenediamine, hexamethylenediamine, etc.), carbon And polyalkylene polyamines having 4 to 20 carbon atoms (dialkylene triamines having 6 to 6 carbon atoms of alkylene groups to hexaalkylene heptamine, diethylenetriamine, triethylenetetramine, etc.).
- C6-C20 aromatic mono- or polyamines aniline, phenylenediamine, tolylenediamine, xylylenediamine, diethyltoluenediamine, methylenedianiline, diphenyletherdiamine, etc.
- C4-C20 alicyclic amines Isophorone diamine, cyclohexylene diamine, dicyclohexyl methane diamine, etc.
- heterocyclic amines having 4 to 20 carbon atoms piperazine, aminoethylpiperazine, and those described in JP-B No. 55-21044), and two or more kinds thereof Combination use etc. are mentioned.
- polyether polyol (A1) and polymer polyol (A5) are preferable from the viewpoint of moldability.
- the total content of (A1), (A2), (A3), (A4), (A5) and (A6) is based on the total weight of the active hydrogen component (A) from the viewpoints of curability and mechanical properties. It is preferably 2 to 92% by weight, more preferably 3 to 90% by weight, particularly preferably 5 to 88% by weight, and most preferably 10 to 80% by weight.
- organic polyisocyanate (B) in the present invention 70% by weight or more of 2,4- and 2,6-tolylene diisocyanate (hereinafter referred to as “based on the total weight of (B)” from the viewpoint of moldability of polyurethane foam.
- a crude product thereof, and one or more polyisocyanates selected from these modified products are abbreviated as TDI-based polyisocyanates), and other polyisocyanates of 30% by weight or less.
- TDI-based polyisocyanates polyisocyanates of 30% by weight or less.
- the content of the TDI polyisocyanate is more preferably 75 to 95% by weight.
- the modified product include urethane group, carbodiimide group, allophanate group, urea group, burette group, isocyanurate group and oxazolidone group-containing modified product.
- organic polyisocyanates having a valence of 2 or more (preferably 2 to 8 valences) used for polyurethane foams can be used.
- Aromatic polyisocyanates include 6 to 16 aromatic diisocyanates, 6 to 20 aromatic triisocyanates, and crude products of these isocyanates (excluding carbons in NCO groups; the following polyisocyanates are also the same).
- Etc. Specific examples include 1,3- and 1,4-phenylene diisocyanate, 2,4′- and 4,4′-diphenylmethane diisocyanate (hereinafter abbreviated as MDI), polymethylene polyphenylene polyisocyanate (crude MDI), naphthylene. -1,5-diisocyanate and triphenylmethane-4,4 ′, 4 ′′ -triisocyanate.
- Examples of the aliphatic polyisocyanate include aliphatic diisocyanates having 6 to 10 carbon atoms. Specific examples include 1,6-hexamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, lysine diisocyanate, and the like.
- Examples of the linear or branched alicyclic polyisocyanate include linear or branched alicyclic diisocyanates having 6 to 16 carbon atoms. Specific examples include isophorone diisocyanate, 4,4′-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, and norbornane diisocyanate.
- araliphatic polyisocyanate examples include araliphatic diisocyanates having 8 to 12 carbon atoms. Specific examples include xylylene diisocyanate and ⁇ , ⁇ , ⁇ ′, ⁇ ′-tetramethylxylylene diisocyanate. Specific examples of the modified polyisocyanate include carbodiimide-modified MDI.
- aromatic polyisocyanates are preferable from the viewpoint of moldability, and MDI, crude MDI, and modified products of these isocyanates are more preferable.
- the organic polyisocyanate (B) may be used in combination of two or more isocyanates and modified products thereof.
- the isocyanate group content (NCO%) of the organic polyisocyanate (B) as a whole is preferably 40 to 50% from the viewpoint of moldability.
- the foaming agent (C) used in the present invention contains water.
- (C) preferably contains only water.
- the content when only water is used as the foaming agent (C) is preferably 1 to 7% by weight, more preferably, based on the total weight of the active hydrogen component (A), from the viewpoint of foaming ratio and foam disintegration. Is 2 to 6.8% by weight.
- the blowing agent (C) it is preferable to use only water, but if necessary, a hydrogen atom-containing halogenated hydrocarbon, a low-boiling hydrocarbon, liquefied carbon dioxide gas, or the like may be used in combination.
- Examples of the hydrogen atom-containing halogenated hydrocarbon foaming agent include HCFC (hydrochlorofluorocarbon) (HCFC-123, HCFC-141b, HCFC-22, HCFC-142b, etc.); HFC (hydrofluorocarbon) (HFC-134a, HFC- 152a, HFC-356mff, HFC-236ea, HFC-245ca, HFC-245fa, HFC-365mfc, etc.).
- HFC-141b, HFC-134a, HFC-356mff, HFC-236ea, HFC-245ca, HFC-245fa and HFC-365mfc and mixtures of two or more thereof are preferred.
- the content is preferably 50% by weight or less, more preferably 5 to 5% from the viewpoint of foaming ratio and foam disintegration, based on the weight of the active hydrogen component (A). 45% by weight.
- the low boiling point hydrocarbon is a hydrocarbon having a boiling point of ⁇ 5 to 70 ° C., and examples thereof include butane, pentane, cyclopentane, and mixtures thereof.
- the content when using low-boiling hydrocarbons is preferably 30% by weight or less, more preferably 25% by weight or less, from the viewpoint of foaming ratio and foam disintegration, based on the total weight of the active hydrogen component (A). It is.
- the content when liquefied carbon dioxide is used is preferably 30% by weight or less, more preferably 25% by weight or less, from the viewpoint of foaming ratio and foam disintegration, based on the total weight of the active hydrogen component (A). is there.
- urethanization catalyst (D) used in the present invention a catalyst that accelerates the urethanization reaction can be used.
- the content of (D) is preferably 0.1 to 0.8% by weight, more preferably 0.15 to 0.8%, from the viewpoint of the reactivity of the urethane foam, based on the total weight of the active hydrogen component (A). 7% by weight.
- foam stabilizer (E) used by this invention what is generally used for manufacture of a polyurethane foam can be used, A silicone foam stabilizer etc. are mentioned.
- Silicone foam stabilizers include polyether-modified dimethylsiloxane foam stabilizers (“SZ-1328”, “SZ-1346” and “SF-2962” manufactured by Toray Dow Corning Co., Ltd.) and Momentive Performance Materials. "L-3640” and “L-540” manufactured by the company, etc.], dimethylsiloxane foam stabilizers ["SRX-253" manufactured by Toray Dow Corning Co., Ltd.], and the like.
- the amount of the foam stabilizer (E) used is preferably 0.5 to 3% by weight, more preferably 0.8 to 2.5% by weight from the viewpoint of moldability, based on the total weight of the active hydrogen component (A). %.
- the additive (F) used in the present invention contains at least one selected from the group consisting of a urea compound (F1) represented by the following general formula (1), an amino acid (F2), and a polyhydric phenol (F3). To do.
- the additive (F) in the present invention has a function as an aldehyde scavenger.
- R represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a hydroxyl group, which may be the same or different, but at least one represents hydrogen.
- n represents an integer of 0 to 3.
- R includes hydrogen, an alkyl group having 1 to 4 carbon atoms (such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, and a tert-butyl group) and a hydroxyl group.
- an alkyl group having 1 to 4 carbon atoms such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, and a tert-butyl group
- a hydroxyl group such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, and a tert-butyl group
- a hydroxyl group such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, and a tert-butyl group
- n represents an integer of 0 to 3, and 0 or an integer of 1 to 2 is preferable from the viewpoint of an aldehyde reduction effect, and more preferably 0.
- Examples of the urea compound (F1) represented by the general formula (1) include urea, N-methylurea, biuret, and carbonyldiurea, and urea is preferable from the viewpoint of the effect of reducing aldehyde.
- amino acid (F2) examples include glycine, alanine, valine, leucine, isoleucine, asparagine, glutamine, aspartic acid, glutamic acid, lysine, arginine, phenylalanine, tyrosine, cysteine, methionine, serine, threonine, histidine, tryptophan and proline. It is done.
- glycine, aspartic acid, and proline are preferable from the viewpoint of an aldehyde reducing effect, and glycine and aspartic acid are more preferable.
- polyhydric phenol examples include polyhydric phenols having 2 to 20 functional groups and a molecular weight of 110 to 2000. Specifically, monocyclic polyphenols such as pyrogallol, hydroquinone, and phloroglucin; bisphenol A, bisphenol F And bisphenols such as bisphenolsulfone; condensates of phenol and formaldehyde (novolac); polyphenols described in US Pat. No. 3,265,641; polyphenol-containing plant extracts and combinations of two or more of these.
- monocyclic polyphenols such as pyrogallol, hydroquinone, and phloroglucin
- bisphenol A bisphenol F
- bisphenols such as bisphenolsulfone
- condensates of phenol and formaldehyde (novolac) polyphenols described in US Pat. No. 3,265,641; polyphenol-containing plant extracts and combinations of two or more of these.
- polyhydric phenols having 2 to 10 functional groups and a molecular weight of 110 to 1000 are preferred from the viewpoint of an aldehyde reducing effect, and more preferred are polyhydric phenols having 2 to 5 functional groups and a molecular weight of 110 to 500.
- the contents of (F1) and (F2) are based on the total weight of (F) from the viewpoint of aldehyde reduction effect and curability.
- (F1) is preferably 15 to 98% by weight, and (F2) is preferably 2 to 85% by weight.
- the content of (F1) and (F3) is from 15 to (F1) based on the total weight of (F) from the viewpoint of aldehyde reduction effect and curability.
- 98 wt% and (F3) are preferably 2 to 85 wt%.
- the content of (F2) and (F3) is 2 to (F2) based on the total weight of (F) from the viewpoint of aldehyde reduction effect and curability.
- 98 wt% and (F3) are preferably 2 to 98 wt%.
- the contents of (F1), (F2) and (F3) are based on the total weight of (F) from the viewpoint of aldehyde reduction effect and curability.
- (F1) is preferably 8 to 96% by weight
- (F2) is preferably 2 to 46% by weight
- (F3) is preferably 2 to 46% by weight.
- the total content of (F1), (F2) and (F3) in the additive (F) is preferably 60% by weight or more, more preferably 80% by weight or more, and particularly preferably 100% by weight. .
- the total content of (F) is preferably from 0.01 to 3% by weight, more preferably from 0.05 to 3% by weight, based on the total weight of the active hydrogen component (A), from the viewpoints of aldehyde reduction effect and moderate curability. It is 3% by weight, particularly preferably 0.1 to 3% by weight.
- the additive (F) preferably contains the urea compound (F1) represented by the general formula (1), and contains the urea compound (F1), the amino acid (F2) and the polyhydric phenol (F3). More preferred.
- a known auxiliary component such as a colorant, a flame retardant, an antiaging agent and an antioxidant may be used and reacted in the presence thereof.
- Colorants include dyes and pigments.
- the flame retardant include phosphate esters and halogenated phosphate esters.
- the antiaging agent include triazole type and benzophenone type antiaging agents.
- the antioxidant include hindered phenol-based and hindered amine-based antioxidants.
- the amount of these auxiliary components used is preferably 1% by weight or less based on the total weight of the active hydrogen component (A) from the viewpoint of curability and mechanical properties, and the flame retardant is curable and mechanical properties.
- the content is preferably 5% by weight or less, more preferably 2% by weight or less
- the anti-aging agent is preferably 1% by weight or less, more preferably 0.5% by weight or less from the viewpoints of curability and mechanical properties.
- the antioxidant is preferably 1% by weight or less, more preferably 0.01 to 0.5% by weight from the viewpoint of curability and mechanical properties.
- the isocyanate index [(NCO group / active hydrogen atom-containing group) ⁇ 100] upon production of the vehicle seat pad is preferably 70 to 125, more preferably 75 from the viewpoint of moldability.
- the active hydrogen atom-containing group includes those derived from water as a foaming agent.
- An example of a method for manufacturing a vehicle seat pad according to the present invention is as follows. First, the active hydrogen component (A), the foaming agent (C), the urethanization catalyst (D), the foam stabilizer (E) and the additive (F), and if necessary, other auxiliary components are mixed in a predetermined amount, and the mixture is mixed. Make it. Next, using a polyurethane foaming machine or a stirrer, the flexible polyurethane foam stock solution obtained by mixing this mixture with the organic polyisocyanate (B) is placed in a mold cavity (for example, 15 to 70 ° C.) in which a skin material is set in advance. , Cured for a predetermined time, foamed and then removed to obtain a sheet pad.
- a mold cavity for example, 15 to 70 ° C.
- the material for the epidermis is not particularly limited, and examples thereof include natural fibers (animal natural fibers, plant natural fibers, etc.), synthetic fibers (polypropylene fibers, polyester fibers, polyamide fibers, acrylic fibers, etc.) and blended fibers thereof.
- the method for measuring the hydroxyl value of the polyol component and the terminal primary hydroxylation rate is as follows.
- the deuterated solvent is deuterated chloroform, deuterated toluene, deuterated dimethyl sulfoxide, deuterated dimethylformamide, or the like, and a solvent that can be dissolved in the sample is appropriately selected.
- 1 H-NMR measurement 1 H-NMR measurement is performed under normal conditions.
- Terminal primary hydroxylation rate (%) [r / (r + 2s)] ⁇ 100 [1]
- r integrated value of a signal derived from a methylene group to which a terminal primary hydroxyl group is bonded in the vicinity of 4.3 ppm
- s an integrated value of a signal derived from a methine group to which a terminal secondary hydroxyl group is bonded in the vicinity of 5.2 ppm.
- Tables 1 and 2 show measurement results such as physical property values of each foam (since there was no significant difference in foam physical properties between the rectangular aluminum mold and the actual mold, the measurement results of the rectangular aluminum mold are shown).
- the core density is a density measured by cutting out from the center of the foam into a size of 100 mm ⁇ 100 mm ⁇ 50 mm.
- D-1 33% by weight dipropylene glycol solution of triethylenediamine [“DABCO-33LV” manufactured by Japan Air Products Japan Ltd.]
- D-2) 70% by weight dipropylene glycol solution of bis-N, N-dimethylaminoethyl ether [“TOYOCAT ET” manufactured by Tosoh Corporation]
- the Examples of the present invention have a very small amount of aldehyde diffusion compared to the Comparative Examples, and are excellent in curability as compared with Comparative Examples 3. Further, even when the amount of the urethanization catalyst used is smaller, excellent curability is shown.
- the vehicle seat pad obtained by the production method of the present invention is useful as a seat pad that can reduce diffusion of aldehydes.
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- Engineering & Computer Science (AREA)
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- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
Description
また、アルデヒド類を分解する作用を持つヒドラジン化合物をポリオール化合物に混合する方法(特許文献2)が知られている。
本発明は、アルデヒドが拡散しにくい車両座席シート用パッドを、硬化性が良好な方法で製造する方法を提供することを目的とする。
すなわち、本発明は、活性水素成分(A)と有機ポリイソシアネート(B)とを発泡剤(C)、ウレタン化触媒(D)、整泡剤(E)及び添加剤(F)の存在下で反応させて軟質ポリウレタンフォームを得る工程(I)を含んでなる車両座席シート用パッドの製造方法であって、(C)が水を含有し、(F)が下記一般式(1)で示される尿素化合物(F1)、アミノ酸(F2)及び多価フェノール(F3)からなる群より選ばれる少なくとも1種を含有し、軟質ポリウレタンフォームのコア密度が25~90kg/m3であり、反発弾性が50~75%であり、硬さ(25%-ILD)が150~400N/cm2である車両座席シート用パッドの製造方法である。
なお、本発明において、ポリエーテルポリオール〔(A0)および後述の(A1)〕の官能基数は、出発物質である活性水素含有化合物の官能基数と同一であるとみなす。
本発明における水酸基価は、JIS K1557-1に規定の方法で測定される。
(A0)のオキシエチレン単位の含有量は5~30重量%であり、成形性及び機械物性の観点から、5~25重量%が好ましく、さらに好ましくは5~20重量%である。
炭素数2~20の2価アルコールとしては、直鎖又は分岐脂肪族ジオール及び脂環式ジオール等が含まれる。直鎖又は分岐脂肪族ジオールとしては、アルキレングリコール等が含まれ、具体的には、エチレングリコール、1,2-及び1,3-プロピレングリコール、1,3-及び1,4-ブタンジオール、1,6-ヘキサンジオール並びにネオペンチルグリコール等が挙げられる。脂環式ジオールとしては、シクロアルキレングリコール等が含まれ、具体的には、シクロヘキサンジオール及びシクロヘキサンジメタノール等が挙げられる
炭素数3~20の3価アルコールとしては、脂肪族トリオール等が含まれる。脂肪族トリオールとしては、アルカントリオール等が含まれ、具体的には、グリセリン、トリメチロールプロパン、トリメチロールエタン及びヘキサントリオール等が挙げられる。
炭素数5~20の4~8価の多価アルコールとしては、脂肪族ポリオール及び糖類が含まれる。脂肪族ポリオールとしては、アルカンポリオール等が含まれ、具体的には、ペンタエリスリトール、ソルビトール、マンニトール、ソルビタン、ジグリセリン及びジペンタエリスリトール等が挙げられる。また、脂肪族ポリオールとしては、アルカントリオール及びアルカンポリオールの分子内脱水物、並びにアルカントリオール及び/又はアルカンポリオールの分子間脱水物も含まれる。糖類としては、具体的には、ショ糖、グルコース、マンノース、フルクトース及びメチルグルコシド等が挙げられ、これらの誘導体も含まれる。
直鎖又は分岐脂肪族アミンとしては、炭素数2~20のアルカノールアミン(モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、イソプロパノールアミン及びアミノエチルエタノールアミン等)、炭素数1~20のアルキルアミン(n-ブチルアミン及びオクチルアミン等)、炭素数2~6のアルキレンジアミン(エチレンジアミン、プロピレンジアミン及びヘキサメチレンジアミン等)及び炭素数4~20のポリアルキレンポリアミン(アルキレン基の炭素数が2~6のもの等、具体的には、ジエチレントリアミン、トリエチレンテトラミン等)が挙げられる。
芳香族アミンとしては、炭素数6~20の芳香族モノ又はポリアミン(アニリン、フェニレンジアミン、トリレンジアミン、キシリレンジアミン、ジエチルトルエンジアミン、メチレンジアニリン及びジフェニルエーテルジアミン等)等が挙げられる。
脂環式アミンとしては、炭素数4~20の脂環式アミン(イソホロンジアミン、シクロヘキシレンジアミン及びジシクロヘキシルメタンジアミン等)等が挙げられる。
複素環式アミンとしては、炭素数4~20の複素環式アミン(ピペラジン、アミノエチルピペラジン及び特公昭55-21044号公報記載のもの等)等が挙げられる。
これらの活性水素含有化合物は2種以上を併用してもよい。これらの中で、硬化性及び機械物性の観点から、多価アルコールが好ましい。
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。
これらの中で成形性の観点から、多価アルコールが好ましく、硬化性及び機械物性の観点から、さらに好ましくは脂肪族多価アルコール及び脂環式多価アルコール、とくに好ましくは脂肪族多価アルコールである。
AO付加時に用いる触媒としては、アルカリ触媒(KOH、CsOH等)の他、特開2000-344881号公報に記載の触媒〔トリス(ペンタフルオロフェニル)ボラン等〕、特開平11-120300号公報に記載の触媒(過塩素酸マグネシウム等)を用いてもよい。
(1)多価アルコールと、ポリカルボン酸又はそのエステル形成性誘導体とのエステル
多価アルコールは、2価アルコール(エチレングリコール、ジエチレングリコール、1,2-及び1,3-プロピレングリコール、1,3-及び1,4-ブタンジオール、1,6-ヘキサンジオール並びにネオペンチルグリコール等)、ポリエーテルポリオール(好ましくはジオール)及びこれらと3価以上の多価アルコール(グリセリン及びトリメチロールプロパン等)との混合物}等である。ポリカルボン酸又はそのエステル形成性誘導体は、酸無水物及び低級アルキル(アルキル基の炭素数:1~4)エステル等であり、アジピン酸、セバシン酸、無水マレイン酸、無水フタル酸及びテレフタル酸ジメチル等が挙げられる。
(2)カルボン酸無水物及びAOとの縮合反応物
(3)上記(1)及び(2)のAO(EO、PO等)付加物
(4)ポリラクトンポリオール
例えば、多価アルコールを開始剤としてラクトン(ε-カプロラクトン等)を開環重合させることにより得られるもの等が挙げられる。
(5)ポリカーボネートポリオール
例えば、前記多価アルコールとアルキレンカーボネートとの反応物等が挙げられる。
なお、本発明において、重合体ポリオール(A5)の原料として用いる、(A0)、および(A1)~(A4)は、(A0)、および(A1)~(A4)に含まない。
(p1)としては、アクリロニトリル、メタクリロニトリル等が挙げられる。
(p2)としては、スチレン、α-メチルスチレン、ヒドロキシスチレン、クロルスチレン等が挙げられる。
(p3)としては、C、H及びO原子からなるもの、例えば、(メタ)アクリル酸アルキルエステル(アルキル基の炭素数が1~24)〔メチル(メタ)アクリレート、ブチル(メタ)アクリレート、ノニル(メタ)アクリレート、デシル(メタ)アクリレート、ドデシル(メタ)アクリレート、エイコシル(メタ)アクリレート及びドコシル(メタ)アクリレート等〕、ヒドロキシアルキル(炭素数2~5)(メタ)アクリレート〔ヒドロキシエチル(メタ)アクリレート等〕及びヒドロキシポリオキシアルキレンモノ(メタ)アクリレート〔アルキレン基の炭素数2~4、ポリオキシアルキレン鎖の数平均分子量200~1000等〕が挙げられる。
(p4)としては、エチレン性不飽和カルボン酸及びその誘導体、具体的には(メタ)アクリル酸及び(メタ)アクリルアミド等;脂肪族又は脂環式炭化水素単量体、具体的にはアルケン(エチレン、プロピレン及びノルボルネン等)及びアルカジエン(ブタジエン等)等;フッ素系ビニル単量体、具体的には、フッ素含有(メタ)アクリレート(パーフルオロオクチルエチルメタクリレート及びパーフルオロオクチルエチルアクリレート等)等;塩素系ビニル単量体、具体的には塩化ビニリデン等;上記以外の窒素含有ビニル単量体、具体的には窒素含有(メタ)アクリレート(ジアミノエチルメタクリレート及びモルホリノエチルメタクリレート等)等;並びにビニル変性シリコーン等が挙げられる。
これら(p)中で、成形性の観点から、(p1)及び(p2)が好ましく、さらに好ましくはアクリロニトリル及び/又はスチレンである。
(p)の合計重量を基準として、(p1)及び/又は(p2)は、50~100重量%が好ましく、さらに好ましくは80~100重量%である。(p1)と(p2)の重量比はとくに限定されないが、100/0~20/80が好ましい。(p3)は、0~50重量%が好ましく、さらに好ましくは0~20重量%である。(p4)は、0~10重量%が好ましく、さらに好ましくは0~5重量%である。
また、炭素数6~20の芳香族モノ又はポリアミン(アニリン、フェニレンジアミン、トリレンジアミン、キシリレンジアミン、ジエチルトルエンジアミン、メチレンジアニリン及びジフェニルエーテルジアミン等);炭素数4~20の脂環式アミン(イソホロンジアミン、シクロヘキシレンジアミン及びジシクロヘキシルメタンジアミン等);炭素数4~20の複素環式アミン(ピペラジン、アミノエチルピペラジン及び特公昭55-21044号公報記載のもの等)及びこれらの2種以上の併用等が挙げられる。
脂肪族ポリイソシアネートとしては、炭素数6~10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、2,2,4-トリメチルヘキサメチレンジイソシアネート及びリジンジイソシアネート等が挙げられる。
直鎖又は分岐脂環式ポリイソシアネートとしては、炭素数6~16の直鎖又は分岐脂環式ジイソシアネート等が挙げられる。具体例としては、イソホロンジイソシアネート、4,4’-ジシクロヘキシルメタンジイソシアネート、1,4-シクロヘキサンジイソシアネート及びノルボルナンジイソシアネート等が挙げられる。
芳香脂肪族ポリイソシアネートとしては、炭素数8~12の芳香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、キシリレンジイソシアネート及びα,α,α’,α’-テトラメチルキシリレ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、カルボジイミド変性MDI等が挙げられる。
有機ポリイソシアネート(B)全体としてのイソシアネート基含有量(NCO%)は、成形性の観点から、40~50%が好ましい。
発泡剤(C)として水のみを用いる場合の含有量は、発泡倍率及びフォームの崩壊性の観点から、活性水素成分(A)の合計重量を基準として、1~7重量%が好ましく、さらに好ましくは2~6.8重量%である。
発泡剤(C)としては水のみを用いるのが好ましいが、必要により水素原子含有ハロゲン化炭化水素、低沸点炭化水素及び液化炭酸ガス等を併用してもよい。
これらのうち好ましいものは、HCFC-141b、HFC-134a、HFC-356mff、HFC-236ea、HFC-245ca、HFC-245fa及びHFC-365mfc並びにこれらの2種以上の混合物である。
水素原子含有ハロゲン化炭化水素を用いる場合の含有量は、活性水素成分(A)の重量を基準として、発泡倍率及びフォームの崩壊性の観点から、50重量%以下が好ましく、さらに好ましくは5~45重量%である。
低沸点炭化水素を用いる場合の含有量は、活性水素成分(A)の合計重量を基準として、発泡倍率及びフォームの崩壊性の観点から、30重量%以下が好ましく、さらに好ましくは25重量%以下である。
液化炭酸ガスを用いる場合の含有量は、活性水素成分(A)の合計重量を基準として、発泡倍率及びフォームの崩壊性の観点から、30重量%以下が好ましく、さらに好ましくは25重量%以下である。
(D)の含有量は、活性水素成分(A)の合計重量を基準として、ウレタンフォームの反応性の観点から0.1~0.8重量%が好ましく、さらに好ましくは0.15~0.7重量%である。
シリコーン整泡剤としては、ポリエーテル変性ジメチルシロキサン系整泡剤[東レ・ダウコーニング(株)製の「SZ-1328」、「SZ-1346」及び「SF-2962」並びにモメンティブ・パフォーマンス・マテリアルズ社製の「L-3640」及び「L-540」等]、ジメチルシロキサン系整泡剤[東レ・ダウコーニング(株)製の「SRX-253」等]等が挙げられる。
整泡剤(E)の使用量は、活性水素成分(A)の合計重量を基準として、成形性の観点から0.5~3重量%が好ましく、さらに好ましくは0.8~2.5重量%である。
本発明における添加剤(F)は、アルデヒド捕捉剤としての機能を有するものである。
これらのうち、アルデヒド低減効果の観点から、グリシン、アスパラギン酸及びプロリンが好ましく、さらに好ましくは、グリシン及びアスパラギン酸である。
これらのうち、アルデヒド低減効果の観点から、官能基数2~10、分子量110~1000の多価フェノールが好ましく、さらに好ましくは官能基数2~5、分子量110~500の多価フェノールである。
(F1)及び(F3)を含有する場合の、(F1)及び(F3)の含有量は、アルデヒド低減効果及び硬化性の観点から、(F)の合計重量を基準として(F1)は15~98重量%、(F3)は2~85重量%が好ましい。
(F2)及び(F3)を含有する場合の、(F2)及び(F3)の含有量は、アルデヒド低減効果及び硬化性の観点から、(F)の合計重量を基準として(F2)は2~98重量%、(F3)は2~98重量%が好ましい。
(F1)、(F2)及び(F3)を含有する場合の(F1)、(F2)及び(F3)の含有量は、アルデヒド低減効果及び硬化性の観点から、(F)の合計重量を基準として(F1)は8~96重量%、(F2)は2~46重量%、(F3)は2~46重量%が好ましい。
なお、添加剤(F)中の、(F1)、(F2)及び(F3)の合計含有量は、好ましくは60重量%以上、さらに好ましくは80重量%以上、とくに好ましくは100重量%である。
これらの補助成分の使用量は、活性水素成分(A)の合計重量を基準として、着色剤は、硬化性及び機械物性の観点から1重量%以下が好ましく、難燃剤は、硬化性及び機械物性の観点から5重量%以下が好ましく、さらに好ましくは2重量%以下であり、老化防止剤は、硬化性及び機械物性の観点から1重量%以下が好ましく、さらに好ましくは0.5重量%以下であり、抗酸化剤は、硬化性及び機械物性の観点から1重量%以下が好ましく、さらに好ましくは0.01~0.5重量%である。
なお、活性水素原子含有基には、発泡剤である水由来のものを含むものとする。
<水酸基価>
水酸基価(mgKOH/g)はJIS K1557-1に規定の方法にて測定した。
<末端1級水酸基化率>
本発明において、末端1級水酸基化率は、予め試料をエステル化の前処理をした後に1H-NMR法により算出する。1H-NMR法の詳細を以下に具体的に説明する。
・試料調整法
測定試料約30mgを直径5mmの1H-NMR用試料管に秤量し、0.5mlの重水素化溶媒を加え溶解させる。その後、0.1mlの無水トリフルオロ酢酸を添加し25℃で約5分間放置して、ポリオールをトリフルオロ酢酸エステルとし、分析用試料とする。ここで重水素化溶媒とは、重水素化クロロホルム、重水素化トルエン、重水素化ジメチルスルホキシド、重水素化ジメチルホルムアミド等であり、試料に溶解させることができる溶媒を適宜選択する。
・1H-NMR測定
通常の条件で1H-NMR測定を行う。
・末端1級水酸基化率の計算方法
末端1級水酸基の結合したメチレン基由来の信号は4.3ppm付近に観測され、末端2級水酸基の結合したメチン基由来の信号は5.2ppm付近に観測されるから、末端1級水酸基化率は下式〔1〕により算出する。
末端1級水酸基化率(%)=〔r/(r+2s)〕×100 〔1〕
ただし、
r:4.3ppm付近の末端1級水酸基の結合したメチレン基由来の信号の積分値
s:5.2ppm付近の末端2級水酸基の結合したメチン基由来の信号の積分値
である。
表1、2に示す活性水素成分(A)、発泡剤(C)、ウレタン化触媒(D)、整泡剤(E)及び添加剤(F)を含むプレミックスと有機ポリイソシアネート(B)とを、それぞれ高圧ウレタン発泡機(ポリウレタンエンジニアリング社製)の原料タンクに仕込み、液温を25℃に調節した。その後、高圧ウレタン発泡機で、上記プレミックスとイソシアネート指数100となる量の有機ポリイソシアネート(B)とを、15MPaで高圧吐出混合し、65℃に温度調節した400mm(長さ)×400mm(幅)×100mm(高さ)のアルミ製モールド、または、表皮材をセットした自動車のシートクッションパッド成型用アルミ製モールド(実型)に注入し、硬化時間6分にて成形した。
各フォームの物性値等の測定結果を表1、2に示す(直方体のアルミ製モールドと実型とでフォーム物性に大きな差がなかったので、直方体のアルミ製モールドでの測定結果を示す。)。なお、コア密度はフォームの中心部から、100mm×100mm×50mmの大きさに切り出して測定した密度である。
(A0-1):ペンタエリスリトール1モルに水酸化セシウムを触媒として、PO118.4モルを付加し、常法により水酸化セシウムを除去した後、特開2000-344881号公報の実施例1と同様にして、トリス(ペンタフルオロフェニル)ボランを触媒としてPO16.0モルを付加し、さらにEO13.6モルを水酸化カリウムを触媒としてブロック付加し、常法により触媒成分を除去して得られた、水酸基価=30.0(mgKOH/g)、エチレンオキサイドの末端含有量8重量%、末端1級水酸基化率85%のポリオール
(A0-2):グリセリン1モルに水酸化カリウムを触媒として、PO71.8モルを付加した後、さらに水酸化カリウムを触媒として、EO15.8モルをブロック付加し、常法により水酸化カリウムを除去して得られた、水酸基価=34.0(mgKOH/g)、エチレンオキシドの末端含有量14重量%、末端1級水酸基化率75%のポリオール
(A0-3):ペンタエリスリトール1モルに水酸化カリウムを触媒として、PO141.8モルを付加した後、さらに水酸化カリウムを触媒として、EO25.5モルをブロック付加し、常法により水酸化カリウムを除去して得られた、水酸基価=24.0(mgKOH/g)、エチレンオキシドの末端含有量12重量%、末端1級水酸基化率75%のポリオール
(A5-1):ポリオール(A0-2)と(A0-3)(重量比:96/4)中でアクリロニトリル及びスチレン(重量比:70/30)を共重合させた重合体ポリオール(重合体含量33.5重量%)、水酸基価=22.0(mgKOH/g)
(A1-1):ソルビトールのエチレンオキシド付加物、水酸基価=1247(mgKOH/g)、エチレンオキシドの末端含有量33重量%
(A1-2):グリセリンのプロピレンオキシド-エチレンオキシド付加物、水酸基価=24.0(mgKOH/g)、エチレンオキシドの末端含有量70重量%
(A6-1):トリエタノールアミン、水酸基価=1130(mgKOH/g)
(F1-1):尿素
(F1-2):N-メチル尿素
(F2-1):グリシン
(F2-2):アスパラギン酸
(F3-1):ハイドロキノン
(F3-2):ビステアフラビンA
(F’―1):カルボジヒドラジド
(C-1):水
(D-1):トリエチレンジアミンの33重量%ジプロピレングリコール溶液[日本エアプロダクツジャパン(株)製「DABCO-33LV」]
(D-2):ビス-N,N-ジメチルアミノエチルエーテルの70重量%ジプロピレングリコール溶液[東ソー(株)製「TOYOCAT ET」]
(E-1):ポリエーテル変性ジメチルシロキサン系整泡剤[東レ・ダウコーニング(株)製「SZ-1328」]
(B-1):TDI/MDI(重量比)=80/20、NCO%=44.6%〔日本ポリウレタン工業(株)製「CE-729」〕
<1>:コア密度(kg/m3)
<2>:硬さ(25%ILD)(N/314cm2)
<3>:反発弾性(%)
<1>~<3>はJIS K6400に準拠した。
フリー発泡を行い、パチンコ玉を一定の時間間隔ごとにフォーム上方より落下させ、フォームの底面まで到達しなかった最初の玉を落下した時間をゲルタイムとした。
得られた各軟質ポリウレタンフォーム成形体について、ホルムアルデヒド(以下、FAと略記)及びアセトアルデヒド(以下、AAと略記)の拡散量を測定した。測定は縦100mm×横80mm×厚み100mmの直方体状の試験片を上記各成形体から切り出してサンプルとし、このサンプルをサンプリングバック内に入れ、バック内を高純度窒素ガスに置換した。65℃のオーブンにて2時間加熱し、バック内のガス3LをDNPHカードリッジ(GL Pak mini AERO:ジーエルサイエンス製)に捕集した。DNPHカードリッジで捕集したガスはアセトニトリル5mLで溶出させた。この溶液を、高速液体クロマトグラフィー(Prominenceシリーズ:島津製作所製)を用いてFA及びAAの定量分析を行った。
(測定条件)
使用カラム:SUMIPAX ODS C-05-4615(住化分析センター製)
検出器:UV検出器(測定波長:360nm)
移動相:アセトニトリル:水=45:55体積%
流速:0.8ml
カラム温度:40℃
注入量:20μl
Claims (3)
- 活性水素成分(A)と有機ポリイソシアネート(B)とを、発泡剤(C)、ウレタン化触媒(D)、整泡剤(E)及び添加剤(F)の存在下で反応させて軟質ポリウレタンフォームを得る工程(I)を含む車両座席シート用パッドの製造方法であって、(C)が水を含有し、(F)が下記一般式(1)で示される尿素化合物(F1)、アミノ酸(F2)及び多価フェノール(F3)からなる群より選ばれる少なくとも1種を含有し、軟質ポリウレタンフォームのコア密度が25~90kg/m3であり、反発弾性が50~75%であり、硬さ(25%-ILD)が150~400N/cm2である車両座席シート用パッドの製造方法。
- 活性水素成分(A)の重量を基準として、添加剤(F)の使用量が0.01~3重量%である請求項1に記載の車両座席シート用パッドの製造方法。
- 活性水素成分(A)、発泡剤(C)、ウレタン化触媒(D)、整泡剤(E)及び添加剤(F)、並びに必要により他の補助成分からなる混合物と、有機ポリイソシアネート(B)とが混合されて得られた軟質ポリウレタンフォーム原液を、あらかじめ面状の表皮材がセットされたモールドキャビティ内に注入し、硬化、発泡させ、該表皮材に軟質ポリウレタンフォームを一体的に接着させた状態に発泡成形する請求項1または2記載の車両座席シート用パッドの製造方法。
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CN201480059046.9A CN105682983A (zh) | 2013-10-29 | 2014-10-28 | 车辆座椅用垫的制造方法 |
US15/032,865 US20160250786A1 (en) | 2013-10-29 | 2014-10-28 | Method for producing vehicle seat pad |
JP2015544799A JP6247698B2 (ja) | 2013-10-29 | 2014-10-28 | 車両座席シート用パッドの製造方法 |
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JP (1) | JP6247698B2 (ja) |
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Cited By (2)
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KR20180018725A (ko) * | 2015-06-16 | 2018-02-21 | 에보닉 데구사 게엠베하 | 폴리우레탄 발포체용 알데히드 스캐빈저 혼합물 |
CN110023365A (zh) * | 2016-12-05 | 2019-07-16 | 科思创德国股份有限公司 | 丙烯酸酯和丙烯酰胺用于减少聚氨酯泡沫体的排放的用途 |
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US11001690B2 (en) * | 2017-07-10 | 2021-05-11 | Nhk Spring Co., Ltd. | Cushion material, seat cushion material, and seat |
US10793692B2 (en) * | 2018-10-24 | 2020-10-06 | Covestro Llc | Viscoelastic flexible foams comprising hydroxyl-terminated prepolymers |
WO2020107363A1 (en) * | 2018-11-30 | 2020-06-04 | Dow Global Technologies Llc | Composition for producing a polyurethane foam |
CN115703874A (zh) * | 2021-08-11 | 2023-02-17 | 江苏赛胜新材料科技有限公司 | 耐高温型聚氨酯板材发泡材料及其制备方法与用途 |
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EP1459862A1 (en) * | 2003-03-18 | 2004-09-22 | Askle | Process for manufacturing moulded articles and articles having integral skin thus obtained |
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- 2014-10-28 JP JP2015544799A patent/JP6247698B2/ja active Active
- 2014-10-28 US US15/032,865 patent/US20160250786A1/en not_active Abandoned
- 2014-10-28 CN CN201480059046.9A patent/CN105682983A/zh active Pending
- 2014-10-28 WO PCT/JP2014/005439 patent/WO2015064084A1/ja active Application Filing
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JP2006034945A (ja) * | 2004-06-25 | 2006-02-09 | Toyota Boshoku Corp | 車両用シートパッド及びその製造方法 |
JP2009091435A (ja) * | 2007-10-05 | 2009-04-30 | Bridgestone Corp | パッド |
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CN110023365A (zh) * | 2016-12-05 | 2019-07-16 | 科思创德国股份有限公司 | 丙烯酸酯和丙烯酰胺用于减少聚氨酯泡沫体的排放的用途 |
JP2019535885A (ja) * | 2016-12-05 | 2019-12-12 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | ポリウレタンフォームの放出を低減するためのアクリル酸エステルおよびアミドの使用 |
CN110023365B (zh) * | 2016-12-05 | 2022-06-10 | 科思创德国股份有限公司 | 丙烯酸酯和丙烯酰胺用于减少聚氨酯泡沫体的排放的用途 |
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JP6247698B2 (ja) | 2017-12-13 |
JPWO2015064084A1 (ja) | 2017-03-09 |
US20160250786A1 (en) | 2016-09-01 |
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