JP2013530263A - 再生可能資源含有量を有する熱成形フォーム製造に適したポリオール - Google Patents
再生可能資源含有量を有する熱成形フォーム製造に適したポリオール Download PDFInfo
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- JP2013530263A JP2013530263A JP2013506135A JP2013506135A JP2013530263A JP 2013530263 A JP2013530263 A JP 2013530263A JP 2013506135 A JP2013506135 A JP 2013506135A JP 2013506135 A JP2013506135 A JP 2013506135A JP 2013530263 A JP2013530263 A JP 2013530263A
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- Prior art keywords
- polyol
- foam
- polyurethane
- oil
- molded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
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- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 3
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- 230000001351 cycling effect Effects 0.000 description 1
- 229940097362 cyclodextrins Drugs 0.000 description 1
- JQZRVMZHTADUSY-UHFFFAOYSA-L di(octanoyloxy)tin Chemical compound [Sn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O JQZRVMZHTADUSY-UHFFFAOYSA-L 0.000 description 1
- PNOXNTGLSKTMQO-UHFFFAOYSA-L diacetyloxytin Chemical compound CC(=O)O[Sn]OC(C)=O PNOXNTGLSKTMQO-UHFFFAOYSA-L 0.000 description 1
- 125000004663 dialkyl amino group Chemical group 0.000 description 1
- RJGHQTVXGKYATR-UHFFFAOYSA-L dibutyl(dichloro)stannane Chemical compound CCCC[Sn](Cl)(Cl)CCCC RJGHQTVXGKYATR-UHFFFAOYSA-L 0.000 description 1
- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- HGQSXVKHVMGQRG-UHFFFAOYSA-N dioctyltin Chemical group CCCCCCCC[Sn]CCCCCCCC HGQSXVKHVMGQRG-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- CWZSSTXVRMPSLX-UHFFFAOYSA-M dodecanoate;tin(2+) Chemical compound [Sn+2].CCCCCCCCCCCC([O-])=O CWZSSTXVRMPSLX-UHFFFAOYSA-M 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 150000002338 glycosides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- FLBJFXNAEMSXGL-UHFFFAOYSA-N het anhydride Chemical compound O=C1OC(=O)C2C1C1(Cl)C(Cl)=C(Cl)C2(Cl)C1(Cl)Cl FLBJFXNAEMSXGL-UHFFFAOYSA-N 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNKYTQGIUYNRMY-UHFFFAOYSA-N methoxypropane Chemical compound CCCOC VNKYTQGIUYNRMY-UHFFFAOYSA-N 0.000 description 1
- XFLSMWXCZBIXLV-UHFFFAOYSA-N n,n-dimethyl-2-(4-methylpiperazin-1-yl)ethanamine Chemical compound CN(C)CCN1CCN(C)CC1 XFLSMWXCZBIXLV-UHFFFAOYSA-N 0.000 description 1
- ZWRDBWDXRLPESY-UHFFFAOYSA-N n-benzyl-n-ethylethanamine Chemical compound CCN(CC)CC1=CC=CC=C1 ZWRDBWDXRLPESY-UHFFFAOYSA-N 0.000 description 1
- XZZXKVYTWCYOQX-UHFFFAOYSA-J octanoate;tin(4+) Chemical compound [Sn+4].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O.CCCCCCCC([O-])=O.CCCCCCCC([O-])=O XZZXKVYTWCYOQX-UHFFFAOYSA-J 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 239000011846 petroleum-based material Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 description 1
- 229920001446 poly(acrylic acid-co-maleic acid) Polymers 0.000 description 1
- 229920002432 poly(vinyl methyl ether) polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004917 polyol method Methods 0.000 description 1
- 229920006295 polythiol Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002683 reaction inhibitor Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 239000006269 thermoset foam Substances 0.000 description 1
- 238000010136 thermoset moulding Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- SYRHIZPPCHMRIT-UHFFFAOYSA-N tin(4+) Chemical class [Sn+4] SYRHIZPPCHMRIT-UHFFFAOYSA-N 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Classifications
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- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
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- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
- C07C69/675—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids of saturated hydroxy-carboxylic acids
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- C08G18/40—High-molecular-weight compounds
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- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
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- C08G18/40—High-molecular-weight compounds
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- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
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- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
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Abstract
Description
Q(NCO)n
〔式中、nは2〜5、好ましくは2〜3の数であり、Qは、2〜18個、好ましくは6〜10個の炭素原子を含有する脂肪族炭化水素基、4〜15個、好ましくは5〜10個の炭素原子を含有する脂環式炭化水素基、8〜15個、好ましくは8〜13個の炭素原子を含有する芳香脂肪族炭化水素基、6〜15個、好ましくは6〜13個の炭素原子を含有する芳香族炭化水素基である〕
により示されるイソシアネートが挙げられる。
触媒としてKOHを用いて製造された11%エチレンオキシド(混合ブロック中に添加された5%および末端キャップとして添加された6%)の合計を有する、グリセリンで開始された56ヒドロキシル価ポリエーテル。
触媒としてKOHを用いて製造された末端キャップとして添加された17.5%エチレンオキシドの合計を有するグリセリンおよびソルビトール(72/28重量%)で共開始された31.5ヒドロキシル価ポリエーテル
36ヒドロキシル価グリセリン系ポリエーテル中に分散した43%ポリ(アクリロニトリル/スチレン)(37/63重量%)を含有する20ヒドロキシル価ポリマーポリオール
POおよびEOで活性化前にスターター/触媒混合物へ添加した100ppmリン酸で開始したヒドロキシル化大豆油(BioBased TechnologiesによるArgol 4.0)、90/10のPO/EO比にて添加した3.5%のEO、次いで25/75のPO/EO比にてアルコキシル化した25%のEO、OH価=56.7、全EO含有量=28.5%、第1級ヒドロキシル=31.3%。
90/10のPO/EO比にて添加した5.6%のEO、次いで35/65のPO/EO比にてアルコキシル化した15%のEO、OH価=56.1、全EO含有量=20.6%、第1級ヒドロキシル=33%。
ヒマシ油開始、90/10のPO/EO比にて添加した4.1%のEO、次いで35/65のPO/EO比にてアルコキシル化した25%のEO、OH価=55.9、全EO含有量=29.1%、第1級ヒドロキシル=35.8%。
ヒマシ油開始、90/10のPO/EO比にて添加した5.5%のEO、次いで25/75のPO/EO比にてアルコキシル化した20%のEO、OH価=56.7、全EO含有量=25.5%、第1級ヒドロキシル=37.3%。
POおよびEOで活性化前にスターター/触媒混合物へ添加した100ppmリン酸で開始したヒマシ油およいbヒドロキシル化大豆油(BioBased TechnologiesによるArgol 4.0)、90/10のPO/EO比にて添加した4.2%のEO、次いで25/75のPO/EO比にてアルコキシル化した25%のEO、OH価=55.9、全EO含有量=29.2%、第1級ヒドロキシル=38.3%。
ヒマシ油開始、90/10のPO/EO比にて添加した5.1%のEO、次いで20/80のPO/EO比にてアルコキシル化した25%のEO、OH価=54.8、全EO含有量=30.1%、第1級ヒドロキシル=45.8%。
ヒマシ油開始、90/10のPO/EO比にて添加した5.4%のEO、次いで15/85のPO/EO比にてアルコキシル化した25%のEO、OH価=56.8、全EO含有量=30.4%、第1級ヒドロキシル=47.8%。
ヒマシ油開始、90/10のPO/EO比にて添加した6.2%のEO、次いで15/85のPO/EO比にてアルコキシル化した30%のEO、OH価=56.1、全EO含有量=36.2%、第1級ヒドロキシル=52.6%。
柔軟ポリウレタンフォームは、表1に示すポリオールの100重量部(pbw)、3.50pbwの蒸留水、1.0pbwのEvonikから名称B−4900として市販のシリコーン界面活性剤、0.10pbwの名称Dabco T−9としてAir Productsから市販のオクタン酸錫触媒、0.15pbwのMomentive Performance Materialsから名称Niax A−1として市販のアミン触媒およびBayer MaterialScienceからMondur TD−80として市販のトルエンジイソシアネートを、100のNCO/OH指数を得るために必要な量で用いて擬似熱硬化成形法により製造した。
柔軟ポリウレタンフォームは、表2に示す45重量部(pbw)のポリオールCおよび55pbwのポリオールBまたは他のポリオールおよび/または2種の組み合わせ、2.25pbwの蒸留水、0.5pbwのAir Productsから名称DC−5164として市販のシリコーン界面活性剤、0.30pbwのMomentive Performance Materialsから名称Niax A−33として市販のアミン触媒、0.10pbwのMomentive Performance Materialsから名称Niax A−1として市販のアミン触媒、およびBayer MaterialScienceからMondur TD−80として市販のトルエンジイソシアネートを、100のNCO/OH指数を得るために必要な量で用いて標準高復元力(HR)「低温」成形法により製造した。フォーム形成性混合物を、15×15×4インチアルミニウム金型中へ65.6℃にて導入し、反応混合物を、該金型中で5.0分間発泡させた。成形フォームを金型から取出し、物理特性をASTM 標準手順により試験する前に7日間硬化させた。該フォームの物理特性もまた表2に示す。
Claims (30)
- 成形ポリウレタンフォームを製造するために適した再生可能資源に基づくポリオールの製造のためのアルコキシル化法であって、
a)ヒドロキシル官能性基を含有する植物油をDMC触媒と組み合わせて混合物を形成する工程、
b)エチレンオキシドおよび/またはプロピレンオキシドおよび必要に応じて1以上の他のアルコキシドを、a)からの混合物へ添加してDMC触媒を活性化する工程、
c)エチレンオキシド、プロピレンオキシドおよび必要に応じて1以上の他のアルコキシドを、b)からの活性化DMC触媒を含有する混合物へ、ポリオール中のエチレンオキシドの百分率と製造されたポリオール中の第1級ヒドロキシル基の百分率とを足した合計が50〜77%であり、第1級ヒドロキシル基の百分率が少なくとも30%であるが50%未満であるような量で添加する工程
を含む、アルコキシル化法。 - 製造されたポリオール中のエチレンオキシドの量は、20重量%および30重量%の間である、請求項1に記載の方法。
- エチレンオキシドを、ポリオール中の第1級ヒドロキシル基の百分率が約40%であるような量で添加する、請求項1に記載の方法。
- エチレンオキシドを、ポリオール中の第1級ヒドロキシル基の百分率が45%未満であるような量で添加する、請求項2に記載の方法。
- ヒドロキシ官能性基を含有する植物油を、大豆油、ヒマワリ油、キャノーラ油、亜麻仁油、綿実油、キリ油、パーム油、ケシ油、トウモロコシ油およびピーナッツ油から選択される少なくとも1つの油から誘導する、請求項1に記載の方法。
- 植物油はヒマシ油である、請求項1に記載の方法。
- 植物油は、重量による少なくとも50%ヒマシ油および他のヒドロキシ官能性基を含有する植物油を含むブレンドである、請求項1に記載の方法。
- 周囲温度において実質的に透明である、請求項1に記載の方法により製造されたポリオール。
- 熱硬化成形フォームの製造に用いるための請求項1に記載の方法により製造されたポリオール。
- 請求項1に記載の方法により製造されたポリオール。
- 請求項4に記載の方法により製造されたポリオール。
- 請求項5に記載の方法により製造されたポリオール。
- 請求項6に記載の方法により製造されたポリオール。
- 請求項7に記載の方法により製造されたポリオール。
- 成形ポリウレタンフォームの製造方法であって、
a)(i)少なくとも1つのポリイソシアネートを含むポリイソシアネート成分と、
(ii)請求項10に記載のポリオールを含むポリオール成分、および
(iii)発泡剤
とを組み合わせてポリウレタン形成性混合物を形成する工程、
b)ポリウレタン形成性混合物を金型中へ導入する工程、
c)ポリウレタン形成性混合物を反応させてポリウレタンフォームを形成する工程、および
d)ポリウレタンフォームを金型から取り出す工程
を含んでなる、製造方法。 - ポリオール成分は、少なくとも30重量%の請求項10に記載のポリオールを含んでなる、請求項15に記載の方法。
- ポリオール成分は、少なくとも60重量%の請求項10に記載のポリオールを含んでなる、請求項15に記載の方法。
- 成形ポリウレタンフォームの製造方法であって、
a)(i)少なくとも1つのポリイソシアネートを含むポリイソシアネート成分と、
(ii)請求項10に記載のポリオールを含むポリオール成分、および
(iii)発泡剤
とを組み合わせてポリウレタン形成性混合物を形成する工程、
b)ポリウレタン形成性混合物を金型中へ導入する工程、
c)金型を少なくとも94℃へ加熱する工程、
d)ポリウレタン形成性混合物を反応させてポリウレタンフォームを形成する工程、
e)冷却し、およびポリウレタンフォームを金型から取り出す工程、および
f)必要に応じて、ポリウレタンフォームを加熱炉中で硬化する工程
を含んでなる、製造方法。 - 成形ポリウレタンフォームの製造方法であって、
a)(i)少なくとも1つのポリイソシアネートを含むポリイソシアネート成分と、
(ii)請求項12に記載のポリオールを含むポリオール成分、および
(iii)発泡剤
とを組み合わせてポリウレタン形成性混合物を形成する工程、
b)ポリウレタン形成性混合物を金型中へ導入する工程、
c)金型を少なくとも94℃へ加熱する工程、
d)ポリウレタン形成性混合物を反応させてポリウレタンフォームを形成する工程、
e)冷却し、およびポリウレタンフォームを金型から取り出す工程、および
f)必要に応じて、ポリウレタンフォームを加熱炉中で硬化する工程
を含んでなる、製造方法。 - 成形ポリウレタンフォームの製造方法であって、
a)(i)少なくとも1つのポリイソシアネートを含むポリイソシアネート成分と、
(ii)請求項13に記載のポリオールを含むポリオール成分、および
(iii)発泡剤
とを組み合わせてポリウレタン形成性混合物を形成する工程、
b)ポリウレタン形成性混合物を金型中へ導入する工程、
c)金型を少なくとも94℃へ加熱する工程、
d)ポリウレタン形成性混合物を反応させてポリウレタンフォームを形成する工程、
e)冷却し、およびポリウレタンフォームを金型から取り出す工程、および
f)必要に応じて、ポリウレタンフォームを加熱炉中で硬化する工程
を含んでなる、製造方法。 - 請求項15に記載の方法により製造された成形フォーム。
- 植物油は、フォームの全重量を基準として10重量%を超える量で存在する、請求項21に記載の成形フォーム。
- 植物油は、フォームの全重量を基準として20重量%を超える量で存在する、請求項21に記載の成形フォーム。
- 請求項18に記載の方法により製造された成形フォーム。
- 植物油は、フォームの全重量を基準として10重量%を超える量で存在する、請求項24に記載の成形フォーム。
- 植物油は、フォームの全重量を基準として20重量%を超える量で存在する、請求項24に記載の成形フォーム。
- 請求項19に記載の方法により製造された成形フォーム。
- 植物油は、フォームの全重量を基準として10重量%を超える量で存在する、請求項27に記載の成形フォーム。
- 植物油は、フォームの全重量を基準として20重量%を超える量で存在する、請求項27に記載の成形フォーム。
- 請求項20に記載の方法により製造された成形フォーム。
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JP2014125516A (ja) * | 2012-12-26 | 2014-07-07 | Kao Corp | 硬質ポリウレタンフォーム製造用ポリオール混合物 |
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US20160311753A1 (en) * | 2015-01-26 | 2016-10-27 | Trent University | Methods of Making Triacylglycerol Polyols from Fractions of Metathesized Natural Oils and Uses Thereof |
US9777245B2 (en) | 2015-01-30 | 2017-10-03 | Trent University | Methods of fractionating metathesized triacylglycerol polyols and uses thereof |
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CN108003323B (zh) * | 2017-11-20 | 2021-01-15 | 万华化学(北京)有限公司 | 一种减震吸能聚氨酯材料及其制备方法 |
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