WO2009098841A1 - 繊維積層体用表層材形成性組成物、並びにそれを用いた合成皮革又は人工皮革及び合成皮革又は人工皮革の製造方法 - Google Patents
繊維積層体用表層材形成性組成物、並びにそれを用いた合成皮革又は人工皮革及び合成皮革又は人工皮革の製造方法 Download PDFInfo
- Publication number
- WO2009098841A1 WO2009098841A1 PCT/JP2009/000286 JP2009000286W WO2009098841A1 WO 2009098841 A1 WO2009098841 A1 WO 2009098841A1 JP 2009000286 W JP2009000286 W JP 2009000286W WO 2009098841 A1 WO2009098841 A1 WO 2009098841A1
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- WO
- WIPO (PCT)
- Prior art keywords
- surface layer
- synthetic leather
- forming composition
- leather
- curing agent
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
Definitions
- the present invention relates to a surface layer-forming composition for fiber laminates, synthetic leather or artificial leather using the same, and a method for producing synthetic leather or artificial leather. More specifically, the composition for forming a surface layer material for a fiber laminate, which has an excellent balance between strength and flexibility and is environmentally friendly during production, and synthetic leather or artificial leather using the same, and a method for producing synthetic leather or artificial leather About.
- Synthetic leather and artificial leather are used for bags and shoes, for example.
- Synthetic leather is required to have flexibility, impact resilience, strength, stretchability, and breathability from the usage environment and conditions.
- Patent Document 1 proposes coating a synthetic leather or the like with an aqueous polyurethane coating agent.
- the production system using the aqueous coating agent has a problem that the energy cost increases due to the high evaporation energy of water.
- a coating agent for synthetic leather or the like that satisfies all of productivity, strength, and environmental response has not been obtained.
- the present invention provides a composition for forming a surface layer material for a fiber laminate, which has an excellent balance between strength and flexibility and is environmentally friendly during production, and synthetic leather or artificial leather using the same, and a method for producing synthetic leather or artificial leather The purpose is to provide.
- the present invention is as shown in the following (1) to (7).
- a synthetic leather bag comprising a surface layer and a fiber fabric layer formed from the composition for forming a surface layer material for a fiber laminate according to (1) or (2).
- An artificial leather bag comprising a surface layer and a fiber fabric layer formed from the surface layer material-forming composition for a fiber laminate according to (1) or (2).
- a liquid containing the main component (A) and the curing agent (B) of (1) or (2) above is applied to a releasable support, subjected to primary curing, and then bonded to a fiber fabric and secondarily cured.
- a method for producing synthetic leather or artificial leather, comprising removing the releasable support.
- a synthetic leather or artificial leather characterized in that a liquid containing the main agent (A) and the curing agent (B) of (1) or (2) is directly applied to a fiber fabric and heat-cured. Production method.
- composition for forming a surface layer material for a fiber laminate which is excellent in balance of productivity / strength and flexibility, and friendly to the global environment, and production of synthetic leather or artificial leather and synthetic leather or artificial leather using the same It became possible to provide a method.
- hexamethylene diisocyanate in which the main agent (A) is a specific polycarbonate diol (hereinafter abbreviated as PCD) and the curing agent (B) has a number average molecular weight of 350 to 500 and a low functional group number.
- PCD polycarbonate diol
- B1 modified polyisocyanate
- B2 HDI isocyanurate-modified polyisocyanate
- PCD in the main agent (A) used in the present invention is PCD obtained by dealcoholization reaction or dephenol reaction of 1,6-hexanediol (hereinafter abbreviated as 1,6-HD) and low molecular carbonate. .
- the number average molecular weight of the PCD is preferably 500 to 5,000, more preferably 1,000 to 3,000. When the number average molecular weight is too low, the flexibility of the coating agent is lowered, and the touch on the skin and the followability with the substrate are lowered. On the other hand, when the number average molecular weight is too high, the film strength tends to be insufficient.
- PCD obtained using a low molecular polyol other than 1,6-HD can also be used in combination with the main agent (A) of the coating agent of the present invention.
- Low molecular polyols other than 1,6-HD include ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butane.
- Diol 1,5-pentanediol, 1,8-octanediol, 1,9-nonanediol, 3-methyl-1,5-pentanediol, 2-ethyl-4-butyl-1,3-propanediol, diethylene glycol Dipropylene glycol, neopentyl glycol, cyclohexane-1,4-diol, cyclohexane-1,4-dimethanol, dimer acid diol, ethylene oxide or propylene oxide adduct of bisphenol A, bis ( ⁇ -hydroxyethyl) benzene, Xylylene glycol, glycerin, trimethylo Trimethylolpropane, low molecular polyols such as pentaerythritol, and the like.
- Examples of the low molecular carbonate include ethylene carbonate, diethyl carbonate, and diphenyl carbonate.
- chain extender is not a problem as long as it is mixed and used immediately before the blending of the main agent and the curing agent.
- a polyol premix is used in advance, an ester exchange reaction occurs during storage, which is not preferable.
- the curing agent (B) in the present invention is composed of a modified polyisocyanate (B1) of HDI having a number average molecular weight of 350 to 500 and a low functional group number, and an isocyanurate modified polyisocyanate (B2) of HDI.
- the modified polyisocyanate (B1) of HDI having a number average molecular weight of 350 to 500 and a low number of functional groups imparts flexibility to the coating and brings about an effect of improving workability when forming the surface layer material.
- (B1) has an average functional group number (f) of 2 ⁇ f ⁇ 3.
- f is less than the lower limit, the crosslinking effect is insufficient and the film properties are deteriorated. Above the upper limit, the flexibility of the coating decreases.
- (B1) examples include 1: 2 (molar ratio) adduct of low molecular glycol (molecular weight 62 to 164) and HDI, 1: 1 of low molecular monool (molecular weight 32 to 164) and HDI. 2 (molar ratio) allophanate modified body etc. are mentioned. In the present invention, a 1: 2 (molar ratio) allophanate modified product of a low-molecular monool and HDI having a low viscosity is preferred.
- Low molecular monools include methanol, ethanol, propanol (including various isomers), butanol (including various isomers), pentanol (including various isomers), hexanol (including various isomers), heptanol ( And saturated aliphatic monools such as octanol (including various isomers), nonanol (including various isomers), and unsaturated aliphatic monools having 2 to 9 carbon atoms.
- the low molecular weight monool preferred in the present invention is isopropanol having a small molecular weight and a high shielding effect.
- a specific method for producing an allophanate modified product of HDI is to add a catalyst poison after reacting HDI at least twice the molar equivalent with respect to a hydroxyl group and monool in the presence of an allophanate catalyst. In this manufacturing method, unreacted HDI is removed.
- HDI isocyanurate-modified polyisocyanate (B2) is obtained by removing unreacted HDI from HDI or a partial urethane prepolymer of HDI through an isocyanuration reaction.
- the low molecular glycol is preferably 1,3-butanediol in consideration of the compatibility of the resulting polyisocyanate and the isocyanate content of the polyisocyanate to be obtained.
- a polyisocyanate other than (B1) and (B2) can be used in combination with the curing agent (B) as necessary.
- diphenylmethane diisocyanate including various isomers
- tolylene diisocyanate including various isomers
- xylene diisocyanate including various isomers
- tetramethylxylene diisocyanate including various isomers
- phenylene diisocyanate Aromatic diisocyanates (including various isomers), tetramethylene diisocyanate, 3-methyl-1,5-pentane diisocyanate
- aliphatic diisocyanates such as lysine diisocyanate, isophorone diisocyanate
- hydrogenated tolylene diisocyanate hydrogenated xylene diisocyanate
- alicyclic diisocyanates such as hydrogenated diphenylmethane diisocyanate.
- these polymeric materials urethanized products, ureaated products, allophanated products, biuretized products, carbodiimidized products, uretoniminate products, uretdioneized products, isocyanurated products, and the like, and a mixture of two or more of these may be mentioned.
- the isocyanate content of the curing agent (B) thus obtained is preferably 10 to 25% by mass, particularly preferably 13 to 22% by mass.
- the isocyanate content is preferably 10 to 25% by mass, particularly preferably 13 to 22% by mass.
- the isocyanate content is too high, there is a problem in workability such as odor because the free isocyanate content is large.
- the crosslinking density falls when too low, the intensity
- additives can be used for the main agent, the curing agent, or both.
- the additives include plasticizers, fillers, colorants, flame retardants, organic or inorganic fillers, antioxidants, ultraviolet absorbers, plasticizers, pigments / dyes, antibacterial agents / antifungal agents, and the like.
- the synthetic leather and artificial leather of the present invention should be composed of a surface layer formed from the above-described surface layer material-forming composition for fiber laminate and a fiber fabric layer.
- Synthetic leather and artificial leather using the surface layer-forming composition for fiber laminates of the present invention are prepared by applying a liquid containing the above-mentioned main agent (A) and curing agent (B) to a releasable support and performing primary curing. After that, the production method of pasting the fiber fabric and secondarily curing it, and then removing the releasable support, or a liquid containing the above-mentioned main agent (A) and curing agent (B) was directly applied to the fiber fabric. Thus, it can be obtained by a production method of heat curing.
- a liquid in which the above-mentioned main agent (A) and curing agent (B) are blended on a releasable support
- a normal coating method such as a knife over roll is used.
- the fiber fabric is pasted and secondarily cured, and then the releasable support is removed.
- the compounded solution may be directly applied to the fiber fabric by, for example, an application method using a knife coater or a comma coater.
- the fiber laminate and the synthetic leather generally refer to those in which the surface of the surface layer material is used on the surface side of the final product, but in the same manufacturing method, the surface of the surface layer material is used on the back side.
- Moist waterproof coatings and moisture permeable waterproof materials can be used as well.
- the releasable support for example, release paper or polyester film can be used.
- said fiber fabric all of natural fiber and a synthetic fiber can be used, for example.
- cotton, sufu, polyester, nylon, acrylic, and a blend of two or more of these may be used.
- Examples of the form include woven fabric, knitted fabric, non-woven fabric, and raised fabric.
- surface of a fiber fabric may be sufficient. These fiber fabrics may be treated with water repellency with silicon resin, fluorine resin or the like.
- Examples of the coating method for direct application include knife coating, wire bar coating, doctor blade coating, reverse roll coating, and calendar coating method. After the coating agent is coated on the synthetic leather surface, it is cured by heating to form a film.
- the film thickness of the surface layer material layer for the fiber laminate is preferably 1 to 200 ⁇ m, more preferably 5 to 100 ⁇ m, as the resin solid content.
- the heating temperature during curing is preferably 50 to 150 ° C.
- the heating time is preferably 2 minutes to 2 hours. If the temperature is too low or the time is too short, curing will be insufficient. On the other hand, if the temperature is too high or the time is too long, an unnecessary heat history is applied to the coating or the substrate.
- a catalyst can be added for the purpose of shortening the curing process and improving the reaction rate.
- the catalyst is a tertiary amine catalyst such as triethylamine, tetramethylpropylenediamine, tetramethylhexamethylenediamine or tolylenediamine as a urethanization reaction catalyst, or stannous octoate, stannous oleate, dibutyltin dilaurate, etc.
- Metal catalysts typified by tin-based catalysts can be mentioned, and these are used alone or in combination.
- the synthetic leather and artificial leather produced using the surface layer-forming composition for fiber laminates of the present invention are useful for clothing, shoes, bags, bags and the like.
- the surface layer-forming composition for fiber laminates of the present invention can also be used as a coating agent for moisture-permeable and waterproof clothing.
- the number average molecular weight of P-1 was determined to be 433, and the average number of functional groups calculated from the number average molecular weight and the isocyanate content was 2.0.
- a polyisocyanate P-2 having a content of 20.8%, a viscosity at 25 ° C. of 2,500 mPa ⁇ s, a free HDI content of 0.3% and a color number of 20 APHA was obtained.
- P-2 was analyzed by FT-IR and 13 C-NMR, an isocyanurate group was confirmed, but traces of allophanate group and uretdione group were observed.
- the film formed from the surface layer-forming composition for a fiber laminate of the present invention was excellent in balance between strength and flexibility.
- Comparative Examples 1 and 3 were films that lacked flexibility, had low strength, and had no physical properties.
- Comparative Examples 2 and 4 the strength was sufficient, but the hysteresis loss was large and the elasticity was lacking. In addition, there was no off-flavor at the time of making all films, and workability was good.
- Example 10 Synthetic leather was produced by the following procedure. 1) The combination of Example 3 with the main agent heated and dissolved at 60 ° C. and the curing agent at room temperature, the mixing ratio of isocyanate group and hydroxyl group being equivalent, and dioctyltin dilaurate as the catalyst in the main agent / curing agent mixture In contrast, 300 ppm is added, and the main agent, curing agent and catalyst are mixed uniformly, and degassed under reduced pressure. 2) Next, this mixed solution was applied to a release paper so as to have a thickness of 15 ⁇ m, and heated at 120 ° C. for 5 minutes.
- Example 11 Synthetic leather was produced by the following procedure. 1) The combination of Example 3 with the main agent heated and dissolved at 60 ° C. and the curing agent at room temperature, the mixing ratio of isocyanate group and hydroxyl group being equivalent, and dioctyltin dilaurate as the catalyst in the main agent / curing agent mixture In contrast, 300 ppm is added, and the main agent, curing agent and catalyst are mixed uniformly, and degassed under reduced pressure. 2) Next, this compounded solution was applied as a base fabric on a polyester taffeta with a bar coater so as to have a thickness of 15 ⁇ m. 3) Heated at 120 ° C. for 5 minutes and then aged at 50-60 ° C. for 48 hours to obtain a synthetic leather. The obtained synthetic leather was soft and had a good texture. Moreover, there was no off-flavor etc. at the time of production, and consideration was given to productivity and the environment.
- Example 12 Artificial leather was produced by the following procedure. 1) The combination of Example 3 of the main agent heated and dissolved at 60 ° C. and the curing agent at room temperature, the mixing ratio of isocyanate groups and hydroxyl groups is equivalent, and dioctyltin dilaurate as a catalyst in the main agent / curing agent mixture In contrast, 300 ppm is added, and the main agent, curing agent and catalyst are mixed uniformly, and degassed under reduced pressure. 2) Next, this mixed solution was applied to a release paper so as to have a thickness of 15 ⁇ m, and heated at 120 ° C. for 5 minutes.
- Example 13 Artificial leather was produced by the following procedure. 1) The combination of Example 3 of the main agent heated and dissolved at 60 ° C. and the curing agent at room temperature, the mixing ratio of isocyanate groups and hydroxyl groups is equivalent, and dioctyltin dilaurate as a catalyst in the main agent / curing agent mixture In contrast, 300 ppm is added, and the main agent, curing agent and catalyst are mixed uniformly, and degassed under reduced pressure. 2) Next, this compounded solution was applied on a three-dimensional entangled nonwoven fabric made of polyester with a bar coater so as to have a thickness of 15 ⁇ m. 3) Heated at 120 ° C. for 5 minutes and then aged at 50-60 ° C. for 48 hours to obtain artificial leather. The obtained artificial leather was soft and had a good texture. Moreover, there was no off-flavor etc. at the time of production, and it considered the productivity and the environment.
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Abstract
Description
ニレンジイソシアネート(各種異性体を含む)等の芳香族ジイソシアネート、テトラメチレンジイソシアネート、3-メチル-1,5-ペンタンジイソシアネート、リジンジイソシアネート等の脂肪族ジイソシアネート、イソホロンジイソシアネート、水素添加トリレンジイソシアネート、水素添加キシレンジイソシアネート、水素添加ジフェニルメタンジイソシアネート等の脂環族ジイソシアネート等が挙げられる。また、これらのポリメリック体やウレタン化物、ウレア化物、アロファネート化物、ビウレット化物、カルボジイミド化物、ウレトンイミン化物、ウレトジオン化物、イソシアヌレート化物等が挙げられ、更にこれらの2種以上の混合物が挙げられる。
製造例1
攪拌機、温度計、冷却器及び窒素ガス導入管のついた容量:1Lの反応器に、HDIを950g、イソプロパノールを50g仕込み、90℃で2時間ウレタン化反応を行った。反応生成物をFT-IRにて分析したところ、水酸基は消失していた。次に2-エチルヘキサン酸ジルコニウムを0.2g仕込み、90℃にて3時間反応させた。反応生成物をFT-IR及び13C-NMRにて分析したところ、ウレタン基は消失していた。次いで、リン酸を0.1g仕込み50℃で1時間停止反応を行った。停止反応後の反応生成物のイソシアネート含量は42.1%であった。この反応生成物を130℃・0.04kPaにて薄膜蒸留を行い、遊離HDIを除去して、イソシアネート含量が19.4%、25℃の粘度が100mPa・s、遊離のHDI含有量が0.1%、色数が10APHAのポリイソシアネートP-1を得た。P-1をFT-IR、13C-NMRにて分析したところ、ウレタン基はその存在が認められず、アロファネート基の存在が確認された。また、ウレトジオン基及びイソシアヌレート基は痕跡程度認められた。P-1の数平均分子量を求めたところ433であり、この数平均分子量とイソシアネート含量から算出される平均官能基数は2.0であった。
攪拌機、温度計、冷却器及び窒素ガス導入管のついた容量:1Lの反応器に、HDIを600部、1,3-ブタンジオールを5部、触媒としてカプリン酸カリウム0.1部、助触媒としてフェノール0.6部を加え、フラスコ中の空気を窒素で置換し、攪拌しながら反応温度70℃に加温し、同温度で4時間反応を行なった。この反応液に停止剤としてリン酸を0.2部加え、反応温度で1時間攪拌後、この反応生成物を130℃・0.04kPaにて薄膜蒸留を行い、遊離HDIを除去して、イソシアネート含量が20.8%、25℃の粘度が2,500mPa・s、遊離のHDI含有量が0.3%、色数が20APHAのポリイソシアネートP-2を得た。P-2をFT-IR、13C-NMRにて分析したところ、イソシアヌレート基は確認されたが、アロファネート基、ウレトジオン基は痕跡程度認められた。P-2の数平均分子量を求めたところ747であり、この数平均分子量とイソシアネート含量から算出される平均官能基数は3.7であった。
実施例1~9、比較例1~4
表1、2に示す組み合わせにて、60℃にて加熱・溶解させた主剤と室温の硬化剤を、イソシアネート基と水酸基が当量となるように配合し、厚さ100μmになるようにバーコーターにて離型紙に塗布し、60℃にて30分加熱した後、120℃で1時間加熱して硬化させた。なお、主剤と硬化剤の配合比は、イソシアネート基と水酸基が当量である。その後、室温にて24時間静置し、その後各種物性評価を行った。結果を表1、2に示す。
PCD-1000:ジエチルカーボネートと1,6-HDを反応させて得られるPCD
数平均分子量=1,000
PCD-2000:ジエチルカーボネートと1,6-HDを反応させて得られるPCD
数平均分子量=2,000
PCD-3000:ジエチルカーボネートと1,6-HDを反応させて得られるPCD
数平均分子量=3,000
引張物性(各モジュラス、破断時強度、破断時伸び)
4号ダンベルカッターにてサンプルを打ち抜き、これをJIS K7311に準じて測定した。引張速度は200mm/分、測定温度は23℃とした。
ヒステリシスロス
4号ダンベルカッターにてサンプルを打ち抜き、引張速度は200mm/分、測定温度は23℃にて、伸びが300%となるまで引っ張り、その後荷重を除去して、測定した。
実施例10
以下の手順により合成皮革を製造した。
1)実施例3の組み合わせの、60℃にて加熱・溶解させた主剤と室温の硬化剤を、イソシアネート基と水酸基の配合比は当量とし、触媒としてジオクチルチンジラウレートを主剤/硬化剤混合液に対して300ppm添加し、主剤、硬化剤、触媒を均一に混合し、減圧して脱泡する。
2)次にこの配合液を厚さが15μmになるように離型紙に塗布し、120℃で5分加熱した。
3)その後、その上に基布としてポリエステルタフタを重ねて圧着した。
4)50~60℃で48時間熟成した後、離型紙をはがし合成皮革を得た。
得られた合成皮革は、柔軟で風合いも良好であった。また、生産時において異臭等はなく、生産性や環境に配慮したものであった。
以下の手順により合成皮革を製造した。
1)実施例3の組み合わせの、60℃にて加熱・溶解させた主剤と室温の硬化剤を、イソシアネート基と水酸基の配合比は当量とし、触媒としてジオクチルチンジラウレートを主剤/硬化剤混合液に対して300ppm添加し、主剤、硬化剤、触媒を均一に混合し、減圧して脱泡する。
2)次にこの配合液を、基布としてにポリエステルタフタ上に厚さが15μmになるようにバーコーターにて塗布した。
3)120℃にて5分加熱し、その後50~60℃にて48時間熟成させて、合成皮革を得た。
得られた合成皮革は、柔軟で風合いも良好であった。また、生産時において異臭等はなく、生産性や環境に配慮したものであった。
実施例12
以下の手順により人工皮革を製造した。
1)実施例3の組み合わせの、60℃にて加熱・溶解させた主剤と室温の硬化剤を、イソ
シアネート基と水酸基の配合比は当量とし、触媒としてジオクチルチンジラウレートを主剤/硬化剤混合液に対して300ppm添加し、主剤、硬化剤、触媒を均一に混合し、減圧して脱泡する。
2)次にこの配合液を厚さが15μmになるように離型紙に塗布し、120℃で5分加熱した。
3)その後、その上にポリエステル製の三次元絡合不織布を重ねて圧着した。
4)50~60℃で48時間熟成した後、離型紙をはがし人工皮革を得た。
得られた人工皮革は、柔軟で風合いも良好であった。また、生産時において異臭等はなく、生産性や環境に配慮したものであった。
以下の手順により人工皮革を製造した。
1)実施例3の組み合わせの、60℃にて加熱・溶解させた主剤と室温の硬化剤を、イソシアネート基と水酸基の配合比は当量とし、触媒としてジオクチルチンジラウレートを主剤/硬化剤混合液に対して300ppm添加し、主剤、硬化剤、触媒を均一に混合し、減圧して脱泡する。
2)次にこの配合液を、ポリエステル製の三次元絡合不織布上に厚さが15μmになるようにバーコーターにて塗布した。
3)120℃にて5分加熱し、その後50~60℃にて48時間熟成させて、人工皮革を得た。
得られた人工皮革は、柔軟で風合いも良好であった。また、生産時において異臭等はなく、生産性や環境に配慮したものであった。
Claims (7)
- 主剤(A)及び硬化剤(B)から構成される繊維積層体用表層材形成性組成物において、主剤(A)が、1,6-ヘキサンジオールと低分子カーボネートから得られるポリカーボネートジオールであり、硬化剤(B)が、数平均分子量350~500、平均官能基数(f)が2≦f<3であるヘキサメチレンジイソシアネートの変性ポリイソシアネート(B1)と、f≧3であるヘキサメチレンジイソシアネートのイソシアヌレート変性ポリイソシアネート(B2)からなるものであって、(B1):(B2)=50:50~95:5(質量比)であり、主剤(A)及び硬化剤(B)の両方に有機溶剤を含まないこと、を特徴とする、繊維積層体用表層材形成性組成物。
- (B1)が、モノオールとヘキサメチレンジイソシアネートから得られるアロファネート変性イソシアネートであることを特徴とする、請求項1記載の繊維積層体用表層材形成性組成物。
- 請求項1又は2に記載の繊維積層体用表層材形成性組成物から形成された表層と繊維布帛層とからなる合成皮革 。
- 請求項1又は2に記載の繊維積層体用表層材形成性組成物から形成された表層と繊維布帛層とからなる人工皮革 。
- 請求項1又は2に記載の主剤(A)と硬化剤(B)を配合した液を離型性支持体に塗布、一次硬化後、繊維布帛に張り合わせて二次硬化させ、その後離型性支持体を除去することを特徴とする合成皮革又は人工皮革の製造方法。
- 請求項1又は2に記載の主剤(A)と硬化剤(B)を配合した液を、繊維布帛に直接塗布して、加熱硬化することを特徴とする合成皮革又は人工皮革の製造方法。
- 請求項1又は2に記載の主剤(A)と硬化剤(B)を配合した液において、当該配合液の水酸基とイソシアネート基のモル比を、水酸基/イソシアネート基=90/100~110/100の割合とすることを特徴とする、請求項5又は6に記載の合成皮革又は人工皮革の製造方法。
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CN2009801014795A CN101910234B (zh) | 2008-02-08 | 2009-01-26 | 纤维层叠体用表层材料形成性组合物、以及使用其的合成皮革或人造皮革、及合成皮革或人造皮革的制造方法 |
KR1020107012328A KR101195808B1 (ko) | 2008-02-08 | 2009-01-26 | 섬유 적층체용 표층재 형성성 조성물, 및 그것을 사용한 합성 피혁 또는 인공 피혁, 및 합성 피혁 또는 인공 피혁의 제조 방법 |
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Cited By (5)
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JP2009203296A (ja) * | 2008-02-27 | 2009-09-10 | Nippon Polyurethane Ind Co Ltd | ポリウレタンフィルム及びその製造方法 |
CN102030881A (zh) * | 2009-09-30 | 2011-04-27 | 日本聚氨酯工业株式会社 | 软质聚氨酯泡沫及其制造方法 |
EP3015486A4 (en) * | 2013-06-27 | 2016-06-15 | Asahi Kasei Chemicals Corp | POLYISOCYANATE COMPOSITION AND PROCESS FOR PRODUCTION THEREOF, BLOCK POLYISOCYANATE COMPOSITION AND METHOD FOR PRODUCING THE SAME, RESIN COMPOSITION, CURABLE RESIN COMPOSITION AND CURED ARTICLE |
US9746033B2 (en) | 2013-03-14 | 2017-08-29 | United Technologies Corporation | Eccentrically bored sleeve for locating a bearing |
EP4079779A1 (en) | 2021-04-21 | 2022-10-26 | Asahi Kasei Kabushiki Kaisha | Polyol composition |
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JP7344970B2 (ja) | 2019-09-04 | 2023-09-14 | 旭化成株式会社 | 硬化性組成物及び合成皮革 |
CN115044029A (zh) | 2021-03-08 | 2022-09-13 | 旭化成株式会社 | 聚酯聚碳酸酯多元醇和合成皮革 |
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EP4079779A1 (en) | 2021-04-21 | 2022-10-26 | Asahi Kasei Kabushiki Kaisha | Polyol composition |
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KR20100087203A (ko) | 2010-08-03 |
CN101910234B (zh) | 2012-09-05 |
JP2009185260A (ja) | 2009-08-20 |
KR101195808B1 (ko) | 2012-11-05 |
CN101910234A (zh) | 2010-12-08 |
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