JP5855012B2 - 吸水性樹脂の製造方法 - Google Patents
吸水性樹脂の製造方法 Download PDFInfo
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- JP5855012B2 JP5855012B2 JP2012544159A JP2012544159A JP5855012B2 JP 5855012 B2 JP5855012 B2 JP 5855012B2 JP 2012544159 A JP2012544159 A JP 2012544159A JP 2012544159 A JP2012544159 A JP 2012544159A JP 5855012 B2 JP5855012 B2 JP 5855012B2
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- water
- absorbent resin
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- 230000035515 penetration Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- 239000000473 propyl gallate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007717 redox polymerization reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 229940001482 sodium sulfite Drugs 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/20—Aqueous medium with the aid of macromolecular dispersing agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/18—Suspension polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/32—Polymerisation in water-in-oil emulsions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
500mL容のビーカーに、0.9質量%塩化ナトリウム水溶液(生理食塩水)500gを量り取り、吸水性樹脂2.0gを、ママコが発生しないように分散させた。撹拌させた状態で60分間放置し、吸水性樹脂を十分に膨潤させた。その後、あらかじめ目開き75μmJIS標準篩の重量Wa(g)を測定しておき、これを用いて、前記ビーカーの内容物をろ過し、篩いを水平に対して約30度の傾斜角となるように傾けた状態で、30分間放置することにより余剰の水分をろ別した。吸水ゲルの入った篩いの質量Wb(g)を測定し、以下の式により、生理食塩水吸水能を求めた。
生理食塩水吸水能(g/g)=[Wb−Wa](g)/吸水性樹脂の質量(g)
吸水性樹脂50gに、滑剤として、0.25gの非晶質シリカ(デグサジャパン(株)、Sipernat200)を混合し測定用吸水性樹脂とした。JIS標準篩いを上から、目開き500μm、250μm、180μm、150μm、106μm、75μm、38μm、受け皿の順に組み合わせて、前記測定用吸水性樹脂を最上の篩いに入れ、ロータップ式振とう機を用いて、20分間振とうさせた。
前記中位粒子径測定において、積算質量百分率が15.9質量%に相当する粒子径(X1)および84.1質量%の相当する粒子径(X2)を求め、下記式により均一度を求めた。
均一度=X1/X2
すなわち、粒子径分布が狭い場合、均一度は1に近づき、粒子径分布が広くなれば、均一度が1より大きくなる。
実施例及び比較例に用いた、高分子保護コロイドの重量平均分子量(Mw)、数平均分子量(Mn)を測定し、分子量分布(Mw/Mn)を算出した。なお、測定には、高温ゲル浸透クロマトグラフを用いて、以下の条件で測定した。結果を表1に示す。
・装置:HLC−8121GPC/HT(検出器:RI)
・カラム:TSKgel GMHHR−H(20)HT+G2000HHR(20)HT×2本(7.8mmID×30cm、東ソー(株)製)
・溶離液:HPLC級1,2,4,−トリクロロベンゼン(和光純薬工業(株)製)に、安定剤としてジブチルヒドロキシトルエン(1,2,4,−トリクロロベンゼン100質量部に対して0.05質量部)を添加したもの。
・流量:1.0mL/min
・検出条件:polarity(−)
・注入量:0.3mL
・カラム温度:140℃
・システム温度:40℃
攪拌機、2段パドル翼、還流冷却器、滴下ロートおよび窒素ガス導入管を備えた2L容の丸底円筒型セパラブルフラスコを準備した。このフラスコにn−ヘプタン286gをとり、HLB3のショ糖ステアリン酸エステル(三菱化学フーズ(株)、リョートーシュガーエステルS−370)0.92g、高分子保護コロイドA(三井化学製、ハイワックス2203A)を0.092g添加し、撹拌しつつ80℃まで昇温して界面活性剤及び高分子保護コロイドAを溶解した後、50℃まで冷却した。
実施例1において、高分子保護コロイドAを高分子保護コロイドB(Honeywll製、A−C575A)に変更した以外は、実施例1と同様の操作を行い、吸水性樹脂95.6gを得た。各性能の測定結果を表2に示す。
実施例1において、高分子保護コロイドAを高分子保護コロイドC(三洋化成製、サンワックスE310)に、高分子保護コロイドの使用量を0.28gに変更した以外は、実施例1と同様の操作を行い、吸水性樹脂95.2gを得た。各性能の測定結果を表2に示す。
実施例3において、高分子保護コロイドCを高分子保護コロイドD(三井化学製、ハイワックス110P)に変更した以外は、実施例3と同様の操作を行い、吸水性樹脂96.0gを得た。各性能の測定結果を表2に示す。
実施例3において、高分子保護コロイドCを高分子保護コロイドF(三洋化成製、ユーメックス2000)に変更した以外は、実施例3と同様の操作を行い、吸水性樹脂95.7gを得た。各性能の測定結果を表2に示す。
Claims (4)
- 水溶性エチレン性不飽和単量体を、界面活性剤および高分子系分散剤を含む石油系炭化水素分散媒中で逆相懸濁重合させて吸水性樹脂を製造する方法であって、該高分子系分散剤が、重量平均分子量(Mw)が2000〜15000であり、且つ分子量分布(Mw/数平均分子量(Mn))が3〜50である高分子保護コロイドであることを特徴とする吸水性樹脂の製造方法。
- 高分子保護コロイドが、無水マレイン酸変性ポリエチレン、無水マレイン酸ポリプロピレン、及び無水マレイン酸変性エチレン・プロピレン共重合体からなる群より選ばれた少なくとも1種である請求項1に記載の吸水性樹脂の製造方法。
- 界面活性剤が、ショ糖脂肪酸エステル及びポリグリセリン脂肪酸エステルからなる群より選ばれた少なくとも1種である請求項1又は2に記載の吸水性樹脂の製造方法。
- 水溶性エチレン性不飽和単量体が、(メタ)アクリル酸、及びその塩からなる群より選ばれた少なくとも1種である請求項1〜3いずれか1項に記載の吸水性樹脂の製造方法。
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PCT/JP2011/073699 WO2012066888A1 (ja) | 2010-11-15 | 2011-10-14 | 吸水性樹脂の製造方法 |
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JP (1) | JP5855012B2 (ja) |
KR (1) | KR101785442B1 (ja) |
CN (1) | CN103209999B (ja) |
BR (1) | BR112013011953A2 (ja) |
SG (1) | SG189955A1 (ja) |
TW (1) | TWI511984B (ja) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JPWO2012108253A1 (ja) * | 2011-02-08 | 2014-07-03 | 住友精化株式会社 | 吸水性樹脂の製造方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105408366B (zh) * | 2013-07-29 | 2018-04-27 | 住友精化株式会社 | 吸水性树脂粒子的制造方法 |
KR102086805B1 (ko) | 2013-11-19 | 2020-03-09 | 엘지디스플레이 주식회사 | 유기전계발광표시장치 |
EP3604366A4 (en) * | 2017-03-29 | 2021-01-13 | Sumitomo Seika Chemicals Co., Ltd. | WATER ABSORBENT RESIN |
US10767029B2 (en) | 2017-04-19 | 2020-09-08 | The Procter & Gamble Company | Agglomerated superabsorbent polymer particles comprising clay platelets with edge modification and/or surface modification |
US11053370B2 (en) | 2017-04-19 | 2021-07-06 | The Procter & Gamble Company | Agglomerated superabsorbent polymer particles having a specific size ratio |
EP3391961A1 (en) | 2017-04-19 | 2018-10-24 | The Procter & Gamble Company | Agglomerated superabsorbent polymer particles having a specific size ratio |
EP3391963B1 (en) | 2017-04-19 | 2021-04-14 | The Procter & Gamble Company | Process to prepare agglomerated superabsorbent polymer particles comprising clay platelets with edge modification and/or surface modification |
JP7144284B2 (ja) * | 2018-11-09 | 2022-09-29 | Joyson Safety Systems Japan株式会社 | 動力伝達部材、プリテンショナ、リトラクタ及び動力伝達部材の製造方法 |
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EP2042521A1 (en) | 2006-03-29 | 2009-04-01 | Nippon Shokubai Co., Ltd. | Method of producing polyacrylic acid (salt) water-absorbent resin |
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-
2011
- 2011-10-14 US US13/882,314 patent/US9273156B2/en not_active Expired - Fee Related
- 2011-10-14 BR BR112013011953A patent/BR112013011953A2/pt not_active Application Discontinuation
- 2011-10-14 KR KR1020137013903A patent/KR101785442B1/ko active IP Right Grant
- 2011-10-14 CN CN201180054940.3A patent/CN103209999B/zh active Active
- 2011-10-14 WO PCT/JP2011/073699 patent/WO2012066888A1/ja active Application Filing
- 2011-10-14 JP JP2012544159A patent/JP5855012B2/ja active Active
- 2011-10-14 EP EP11842161.9A patent/EP2641920A4/en not_active Withdrawn
- 2011-10-14 SG SG2013030242A patent/SG189955A1/en unknown
- 2011-10-27 TW TW100139108A patent/TWI511984B/zh not_active IP Right Cessation
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JPH01168703A (ja) * | 1987-02-06 | 1989-07-04 | Lion Corp | 逆相懸濁重合用分散剤 |
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JP6050685B2 (ja) * | 2011-02-08 | 2016-12-21 | 住友精化株式会社 | 吸水性樹脂の製造方法 |
Also Published As
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KR101785442B1 (ko) | 2017-10-16 |
US20130217846A1 (en) | 2013-08-22 |
US9273156B2 (en) | 2016-03-01 |
TW201223971A (en) | 2012-06-16 |
BR112013011953A2 (pt) | 2016-08-30 |
EP2641920A4 (en) | 2014-03-19 |
CN103209999B (zh) | 2015-09-16 |
EP2641920A1 (en) | 2013-09-25 |
CN103209999A (zh) | 2013-07-17 |
KR20130140756A (ko) | 2013-12-24 |
TWI511984B (zh) | 2015-12-11 |
WO2012066888A1 (ja) | 2012-05-24 |
JPWO2012066888A1 (ja) | 2014-05-12 |
SG189955A1 (en) | 2013-06-28 |
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