JP6616942B2 - 多糖類の酸化からのポリアルデヒドの水性組成物およびそれらの熱硬化性樹脂 - Google Patents
多糖類の酸化からのポリアルデヒドの水性組成物およびそれらの熱硬化性樹脂 Download PDFInfo
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- JP6616942B2 JP6616942B2 JP2014244197A JP2014244197A JP6616942B2 JP 6616942 B2 JP6616942 B2 JP 6616942B2 JP 2014244197 A JP2014244197 A JP 2014244197A JP 2014244197 A JP2014244197 A JP 2014244197A JP 6616942 B2 JP6616942 B2 JP 6616942B2
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- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000005263 alkylenediamine group Chemical group 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000004103 aminoalkyl group Chemical group 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- WCKOGWVWLFJJJX-ZCXGUVEESA-N carolacton Chemical compound OC(=O)C[C@@H](OC)[C@@H](C)C(=O)[C@H](C)\C=C(/C)[C@H]1OC(=O)[C@H](O)[C@H](O)\C=C\[C@H](C)CCC[C@@H]1C WCKOGWVWLFJJJX-ZCXGUVEESA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229920001429 chelating resin Polymers 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 229940008099 dimethicone Drugs 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007071 enzymatic hydrolysis Effects 0.000 description 1
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002195 fatty ethers Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229940096919 glycogen Drugs 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- 229940046892 lead acetate Drugs 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000314 lubricant Substances 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
- 230000007257 malfunction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002772 monosaccharides Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001702 nutmeg Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000005526 organic bromine compounds Chemical class 0.000 description 1
- 238000002103 osmometry Methods 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000656 polylysine Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- ARJOQCYCJMAIFR-UHFFFAOYSA-N prop-2-enoyl prop-2-enoate Chemical compound C=CC(=O)OC(=O)C=C ARJOQCYCJMAIFR-UHFFFAOYSA-N 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
- C08B30/18—Dextrin, e.g. yellow canari, white dextrin, amylodextrin or maltodextrin; Methods of depolymerisation, e.g. by irradiation or mechanically
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/02—Dextran; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S424/00—Drug, bio-affecting and body treating compositions
- Y10S424/13—Burn treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Wood Science & Technology (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Biological Depolymerization Polymers (AREA)
Description
以下の実施例は本発明をよりよく説明するのに役立つが、このことは実施例によって限定されることを意図していない。
酸化マルトデキストリンの生成で、2リットルの4つ口フラスコに800.00gの脱イオン化(DI)H2Oを充填した。次に、41.03gのマルトデキストリン(Spectrum Chemicals,New Brunswick,NJ,DE〜10.5,97.5%固形分lot♯2AK0418)を添加して、撹拌を500回転に設定した。マルトデキストリンを溶解した後に、56.40gの過ヨウ素酸ナトリウム(Sigma−Aldrich,St.Lous,MO)をフラスコに添加した。フラスコに窒素ブランケットを適用し、光透過を防ぐために容器全体をアルミ箔で覆った。フラスコ内の組成物を24時間、撹拌した後、700グラムのAmberlite(商標)IRN150イオン交換樹脂(Dow Chemical、Midland、MI)を備えたカラムの中へ通して、混合物からヨウ素酸塩をストリップした。次に、空隙容積の3倍の水を用いてカラムから酸化マルトデキストリンを流した。材料は全て最低24時間凍結乾燥し、乾燥酸化マルトデキストリンを作製した。
合成を3つの別々の容器で再現し、反応は、各容器においてアルミニウムブロック内の40mLガラスバイアル中、室温で設定した。各ガラスバイアル中に硫酸鉄(II)(約15〜18mg)(Sigma−Aldrich,St.Louis,MO)を計量した。各バイアル中にM1083マルトデキストリン(5.0g)(Spectrum Chemicals,New Brunswick,NJ,DE〜10.5,97.5%固形分lot♯2AK0418)を計量した。各バイアルにPTFE‐被覆スターラーバーを添加し、混合物を水(10mL)に溶解した。各バイアルに30重量%の過酸化水素水(1.4mL)を0.01mL/分の速度でシリンジポンプを使用して2時間で添加した。各反応混合物を、大気へベントして室温で一晩撹拌した。3つのバイアルを過酸化物試験紙(Peroxide test strip)で分析し、それぞれが過酸化物の完全な変換を示した。次に、3つのバイアルの中身を併合して凍結乾燥器に5日間置いた。解除した後、固形分の重量を計り、14.3gの乾燥酸化マルトデキストリンを得た。
合成を、アルミニウムブロック内に置いた2つの40mLのガラスバイアル中室温で再現した。各ガラスバイアルに硫酸鉄(II)(約15〜18mg)(Sigma−Aldrich,St.Louis,MO)を計量した。各バイアルにM1083マルトデキストリン(7.0g)(Spectrum Chemicals,New Brunswick,NJ,DE〜10.5,97.5%固形分lot♯2AK0418)を計量した。各バイアルにPTFE−被覆スターラーバーを添加し、各混合物を水(15mL)に溶解した。各バイアルに30重量%の過酸化水素水(1.4mL)(Sigma−Aldrich,St.Louis,MO)を0.01mL/分の速度で圧送するシリンジポンプを使用して2時間で添加した。各反応混合物を、大気へベントして室温で一晩撹拌した。次に、2つのバイアルの中身を統合して凍結乾燥器に5日間置いた。解除した後、固形分の重量を計り、12.9gの乾燥酸化マルトデキストリンを得た。
合成を、アルミニウムブロック内に室温で設置した、3つの40mLのガラスバイアルで再現した。各ガラスバイアル中に硫酸鉄(II)(約15〜18mg)を計量した。各バイアル中に5.0グラムのマルトデキストリン(STAR−DRI(登録商標)1,DE=1,Tate&Lyle,London,UK)を計量した。各バイアルにPTFE−被覆スターラーバーを添加し、各混合物を15mLの水に溶解して粘凋溶液を形成した。次に、各粘凋溶液に1.4mLの30重量%の過酸化水素水を0.01mL/分の速度で圧送するシリンジポンプを用いて2時間で添加した。大気へベントしながら反応混合物を室温で一晩撹拌した。3つの全試料を併合して凍結乾燥器に3日間置いた。単離した乾燥酸化デキストリン材料の総量は12グラムであった。
0.503グラムの酸化マルトデキストリンと100gのDI H2Oに0.434gの塩酸ヒドロキシルアミン(98%、Sigma−Aldrich)を添加した。pHを50%NaOH水溶液(Fisher Scientific)で12に上げ、混合液を40℃に加熱して、4時間撹拌した。試料について酸(0.5N塩酸)滴定し、変曲点の間の試料の滴定に4.534mLの0.5N塩酸を要した。対照として0.434gの塩酸ヒドロキシルアミンを試験し、同様の範囲に要した酸は0.5N塩酸の12.584mLであった。酸化デキストリン中のアルデヒド基の量は酸化デキストリンによって消費されたヒドロキシルアミンの量に等しかった。すなわち、対照と酸化デキストリンの間の差異はヒドロキシルアミンと反応した。
0.5g(最大精度0.001gまで重さを記録)のポリマー試料をプラスチックの試料カップに置き、およそ10mlの脱イオン化(DI)水を添加した。次に、試料カップをRadiometer Analytical TitraLabTM865自動滴定装置(Radiometer Analytical SAS Codex,FR)に置いて、0.5N KOHでpH12まで滴定した。結果は、この試料では、カルボン酸への相当な変換を示さない非酸化マルトデキストリンの結果と類似した。
酸化マルトデキストリンB、CおよびDの各々のカルボキシル含量とカルボニル含量は、Starch1995,47,19〜23に記載の手順と同様な手順で測定した。カルボニル含量を、凍結乾燥によって酸化デキストリンを最低24時間乾燥し、続いて既知量の酸化デキストリン(400〜600mg)を、第1溶液を作るために酸化デキストリンを完全に溶解するのに十分な脱イオン水(20〜30mL)に溶解させて測定した。第1溶液のpHを、0.1MのNaOH溶液を添加して3.2に調整した。酸化デキストリン(第1)_溶液に、ヒドロキシルアミンの第2溶液(0.30mLの50重量%の水溶液)をPTFE‐被覆スターラーバーで撹拌しながら添加した。得られた併合溶液を室温で4時間撹拌し、0.6Mの塩酸溶液で迅速に滴定してpH3.2を得た。pHを3.2に持ってくるのに要した塩酸のモル量は溶液中の未反応ヒドロキシルアミンに相当する。添加したヒドロキシルアミンと滴定したヒドロキシルアミンの間のモル差異は酸化デキストリン中のアルデヒドのモル量に相当する。酸化デキストリンを完全に溶解するために、既知量の乾燥酸化デキストリン(400〜500mg)を十分な脱イオン水(20〜30mL)に溶解してカルボン酸含量を測定した。カルボン酸の量を、溶液のpHが等量点に達するまで溶液に0.1MのNaOHを添加して測定した。添加したNaOHのモル量は、試験した酸化デキストリン中に存在するカルボン酸のモル量に相当すると推定される。
アルデヒドとカルボキシル含量を下記の表1に記録する。
各バインダーを、第1級アミン化合物を撹拌と伴に水に添加した後、得られた溶液に酸化デキストリンを添加することによって、表示した比率で下記の表2に示した材料を混合し、調製した。例えば、例1では、3.45gのL‐リジンを107.53gのDI水と混合した。次に、8.5gの酸化デキストリンAをその溶液に添加し、その混合物を撹拌した。分散剤なしで、翌日その混合物は均質だった。比較例7では、8.5gのマルトデキストリンを3.45gのL‐リジンおよび107.53gのDI水と混合した。
表示した各バインダーに対して、バインダー含浸マイクロファイバーフィルタ、20.3cm×25.4cmシート(ワットマンインターナショナルインコーポレーテッド、英国、メイドストーン、GF/Aカタログ番号1820866号)は、十分に撹拌混合しておいた120グラムの10重量%(固形分)の予混合水性バインダーを満たした水槽中に機械的に吸引して調製した。浸したシートを2枚のボール紙の間に挟んで余分なバインダーを吸収させ、Birch Bros.Padder(Waxham,N.C.)において、圧力68.9476kPa、速度5m/分で2枚のボール紙の間で加圧した。得られたバインダー処理シートは、90℃で90秒間、液化装置を備えた、またはベントされたマチスオーブン(Niederhasli/Zurich,CH)内で乾燥された。次に、乾燥した処理シートは、試料の乾燥に用いたのと同型のマチスオーブンで、190℃で30、60および180秒間、硬化された。硬化後の重量を、接着剤アドオンを計算するために決定した。「アドオン」は、硬化後にフィルタシート上に保持されたフィルタシートのバインダー固形分の重量に基づく重量%である。全シートは、およそ20重量%のバインダーアドオンを有した。硬化したシートを、2.56cm(1インチ)(幅方向)×10.24cm(4インチ)(縦方向)の試験小片に切取り、Thwing−Albert Intelect500引張試験機(Thwing−Alber Co.,Phila.,PA)で縦方向の引張強さを試験した。固定間隙は5.12cm(2インチ)であった。引張り速度は2.56cm(1インチ)/分であった。小片は、「そのまま」(乾燥引張り強さ)または水に85℃、30分間浸漬した直後に試験した。引張り強さを、パーティングの間に測定されたピークパワーとして記録した。下記の表3に記録したデータは各バインダー事例に対して試験した7つの試験小片の平均である。
Claims (9)
- 実質的にホルムアルデヒドフリーの水性熱硬化性バインダー組成物であって、
i)1〜25のデキストロース当量(DE)値を持つデキストリンを酸化することによって製造される一つまたは複数の水溶性酸化デキストリンであって、2〜25のDE値を持つデキストリンを酸化することによって製造される2〜10ミリ当量CHO/gの乾燥酸化デキストリンを持つ酸化デキストリン、および2未満のDE値を持つデキストリンを酸化することによって製造される0.25〜5ミリ当量CHO/gの乾燥酸化デキストリンを持つ酸化デキストリンから選ばれる、水溶性酸化デキストリンと、
ii)全酸化デキストリン固形物に対する200以下のアミン当量を有する全ジ第1級ジアミン固形物の重量比が0.1:1〜1.25:1の範囲である、200以下のアミン当量を有する一つまたは複数のジ第1級ジアミン、
を含む、組成物。 - 前記(i)水溶性酸化デキストリンが、2未満のDE値を持つデキストリンを酸化することによって製造され、および0.25〜5ミリ当量CHO/gの乾燥酸化デキストリンを有する酸化デキストリンである、請求項1に記載の水性バインダー組成物。
- 前記(i)水溶性酸化デキストリンが酸化マルトデキストリンである、請求項1または2に記載の水性バインダー組成物。
- 前記(i)水溶性酸化デキストリンが、2〜25のDE値を有するデキストリンを酸化することによって製造され、および2〜10ミリ当量CHO/gの乾燥酸化デキストリンを有する酸化デキストリンである、請求項1に記載の水性バインダー組成物。
- 全(i)酸化デキストリン固形物に対する前記200以下のアミン当量を有する全(ii)ジ第1級ジアミン固形物の重量比が0.1:1〜0.5:1の範囲である、請求項1〜4のいずれか一項に記載の水性バインダー組成物。
- 前記(ii)200以下のアミン当量を有するジ第1級ジアミンが、アルキルジ第1級ジアミン、アミノグアニジンおよびその塩、脂環式第1級ジアミン、ジ第1級アミン官能性アミノ酸、および芳香族ジ第1級アミンからなる群から選択されるジ第1級ジアミンである、請求項1〜5のいずれか一項に記載の水性バインダー組成物。
- 一つまたは複数の安定剤をさらに含む、請求項1〜6のいずれか一項に記載の水性バインダー組成物。
- 一つまたは複数の安定剤が8.5以下のpKaを持つ安定剤酸または塩から選ばれる、請求項7に記載の水性バインダー組成物。
- 過ヨウ素酸、過ヨウ素酸塩、過酸化物および金属塩触媒の組合せ、ならびに+2酸化状態の少なくとも一つの鉄原子を持つ鉄塩から選ばれる酸化剤の存在下、水中で一つまたは複数のデキストリンを酸化してアルデヒド基含有酸化デキストリンを提供すること、および得られた前記製品を200以下のアミン当量を有するジ第1級ジアミンと混合することを含む、請求項1〜6のいずれか一項に記載の組成物を製造する方法。
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