JP2019116636A5 - - Google Patents
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- JP2019116636A5 JP2019116636A5 JP2019053212A JP2019053212A JP2019116636A5 JP 2019116636 A5 JP2019116636 A5 JP 2019116636A5 JP 2019053212 A JP2019053212 A JP 2019053212A JP 2019053212 A JP2019053212 A JP 2019053212A JP 2019116636 A5 JP2019116636 A5 JP 2019116636A5
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- JP
- Japan
- Prior art keywords
- superabsorbent polymer
- weight
- polymer composition
- ethylenically unsaturated
- particulate superabsorbent
- 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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- 229920000247 Superabsorbent polymer Polymers 0.000 claims 23
- 239000000203 mixture Substances 0.000 claims 15
- 239000002245 particle Substances 0.000 claims 7
- 239000003431 cross linking reagent Substances 0.000 claims 5
- 239000000178 monomer Substances 0.000 claims 5
- 239000000843 powder Substances 0.000 claims 5
- 150000001875 compounds Chemical class 0.000 claims 4
- 230000035699 permeability Effects 0.000 claims 4
- -1 unsaturated glycidyl compound Chemical class 0.000 claims 4
- 230000014759 maintenance of location Effects 0.000 claims 3
- LSWYGACWGAICNM-UHFFFAOYSA-N 2-(prop-2-enoxymethyl)oxirane Chemical compound C=CCOCC1CO1 LSWYGACWGAICNM-UHFFFAOYSA-N 0.000 claims 2
- 230000002378 acidificating Effects 0.000 claims 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims 2
- 150000001735 carboxylic acids Chemical class 0.000 claims 2
- 239000007795 chemical reaction product Substances 0.000 claims 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 229920000768 polyamine Polymers 0.000 claims 2
- 230000000379 polymerizing Effects 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- 239000011780 sodium chloride Substances 0.000 claims 2
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N Vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 238000007259 addition reaction Methods 0.000 claims 1
- 150000008064 anhydrides Chemical class 0.000 claims 1
- PVEOYINWKBTPIZ-UHFFFAOYSA-N but-3-enoic acid Chemical compound OC(=O)CC=C PVEOYINWKBTPIZ-UHFFFAOYSA-N 0.000 claims 1
- BRXCDHOLJPJLLT-UHFFFAOYSA-N butane-2-sulfonic acid Chemical compound CCC(C)S(O)(=O)=O BRXCDHOLJPJLLT-UHFFFAOYSA-N 0.000 claims 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims 1
- 238000007142 ring opening reaction Methods 0.000 claims 1
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 claims 1
Claims (4)
ａ）不飽和酸性基含有モノマーを含む重合性モノマーであって、前記不飽和酸性基含有モノマーは、アクリル酸、メタクリル酸、ビニル酢酸、ビニルスルホン酸、メタリルスルホン酸、及び２―アクリルアミド―２―メチルプロパンスルホン酸から選択される、重合性モノマーと；
ｂ）前記重合性モノマーに基づいて０．００１〜１質量％の内部架橋剤組成物であって、エチレン性不飽和ポリアミンとエチレン性不飽和グリシジル化合物及び／又はエチレン性不飽和ポリグリシジル化合物との開環付加反応生成物である、内部架橋剤組成物と；
ここで、成分ａ）及びｂ）は重合及び粒状化されて、粒子表面を有する粒状超吸収性ポリマーを形成しており、前記粒状超吸収性ポリマー組成物の少なくとも４０質量％は３００μｍ〜６００μｍの粒子径を有しており；
ｃ）乾燥した超吸収性ポリマー組成物粉末の質量に基づいて０．０１〜５質量％の、前記粒子表面に適用された表面架橋剤と；
ｄ）乾燥した粒状超吸収性ポリマー組成物粉末の質量に基づいて０．０１質量％〜５質量％の前記粒子表面に適用された不溶性無機粉末、及び乾燥した粒状超吸収性ポリマー組成物粉末の質量に基づいて０．０１〜５質量％の前記粒子表面に適用された多価金属塩と；
を含んでおり、
前記粒状超吸収性ポリマー組成物は、ＣＲＣ＝［遠心分離後のサンプルバッグ−遠心分離後の空のバッグ−乾燥したサンプル質量］／乾燥状態サンプル質量によって決定される２０ｇ／ｇ〜４０ｇ／ｇの遠心保持容量、及びＫ＝［Ｑ＊Ｈ＊μ］／［Ａ＊ρ＊Ｐ］によって決定される５ダーシー以上２００ダーシー以下のゲル床透過性を有する、
粒状超吸収性ポリマー組成物。 A particulate superabsorbent polymer composition having increased permeability, said particulate superabsorbent polymer comprising:
a) A polymerizable monomer containing an unsaturated acidic group-containing monomer, wherein the unsaturated acidic group-containing monomer is acrylic acid, methacrylic acid, vinyl acetic acid, vinyl sulfonic acid, methallyl sulfonic acid, and 2-acrylamide-2. A polymerizable monomer selected from methyl propane sulfonic acid;
b) an internal cross-linking agent composition of from 0.001 to 1 mass% based on the polymerizable monomers, et ethylenic unsaturated polyamine and an ethylenically unsaturated glycidyl compound and / or ethylenically unsaturated polyglycidyl compound An internal cross-linking agent composition which is a ring-opening addition reaction product with
Here, the components a) and b) have been polymerized and granulated to form a particulate superabsorbent polymer having a particle surface, wherein at least 40% by weight of the particulate superabsorbent polymer composition is between 300 μm and 600 μm. Have a particle size;
c) 0.01-5% by weight, based on the weight of the dried superabsorbent polymer composition powder, of a surface-crosslinking agent applied to the surface of the particles;
d) 0.01% to 5% by weight, based on the weight of the dried particulate superabsorbent polymer composition powder, of the insoluble inorganic powder applied to the surface of the particles, and the dried granular superabsorbent polymer composition powder. 0.01-5% by weight based on weight of the polyvalent metal salt applied to the surface of the particles;
Contains
The particulate superabsorbent polymer composition has a CRC=[sample bag after centrifugation-empty bag after centrifugation-dry sample weight]/dry sample weight of 20 g/g to 40 g/g A centrifuge retention volume and a gel bed permeability of not less than 5 Darcy and not more than 200 Darcy determined by K=[Q*H*μ]/[A*ρ*P],
Granular superabsorbent polymer composition.
ａ）超吸収性ポリマーに基づいて、エチレン性不飽和カルボン酸、エチレン性不飽和カルボン酸の無水物、塩、又はこれらの誘導体から選択される少なくとも１つのモノマーと、エチレン性不飽和ポリアミンとエチレン性不飽和グリシジル化合物及び／又はエチレン性不飽和ポリグリシジル化合物との反応生成物である、０．００１質量％〜１質量％の内部架橋剤組成物とを重合させることによって超吸収性ポリマーを調製すること；a) at least one monomer selected from ethylenically unsaturated carboxylic acids, anhydrides, salts or derivatives of ethylenically unsaturated carboxylic acids based on superabsorbent polymers, ethylenically unsaturated polyamines and ethylene Of a superabsorbent polymer by polymerizing 0.001% by mass to 1% by mass of an internal cross-linking agent composition, which is a reaction product of the unsaturated unsaturated glycidyl compound and/or the ethylenically unsaturated polyglycidyl compound To do;
ｂ）前記超吸収性ポリマーを重合させること；b) polymerizing the superabsorbent polymer;
ｃ）前記超吸収性ポリマーを粒状化して、前記粒状超吸収性ポリマー％の少なくとも４０質量が３００μｍ〜６００μｍの粒子径を有する粒状超吸収性ポリマーを形成すること；c) granulating the superabsorbent polymer to form a particulate superabsorbent polymer wherein at least 40% by weight of the particulate superabsorbent polymer has a particle size of 300 μm to 600 μm;
ｄ）乾燥した超吸収性ポリマー組成物粉末の質量に基づいて０．００１質量％〜５．０質量％の、粒子表面に適用された表面架橋剤で、前記粒状超吸収性ポリマーを表面架橋すること；及びd) Surface crosslink the granular superabsorbent polymer with 0.001% to 5.0% by weight of surface cross-linking agent applied to the surface of the particles, based on the weight of the dried superabsorbent polymer composition powder. That; and
ｅ）工程ｄ）の表面架橋した粒状超吸収性ポリマーを、１５０℃〜２５０℃の温度で２０〜１２０分間熱処理して、表面架橋した前記粒状超吸収性ポリマーを形成すること；e) heat treating the surface crosslinked particulate superabsorbent polymer of step d) at a temperature of 150°C to 250°C for 20 to 120 minutes to form the surface crosslinked particulate superabsorbent polymer;
を含んでおり、Contains
前記粒状超吸収性ポリマー組成物は、本明細書に記載の遠心保持容量試験によって決定される２０ｇ／ｇ〜４０ｇ／ｇの遠心保持容量、及び本明細書に記載のゲル床透過性試験によって決定される少なくとも５ダーシー以上のゲル床透過性を有する、 The particulate superabsorbent polymer composition has a centrifugal retention capacity of 20 g/g to 40 g/g as determined by the centrifugal retention capacity test described herein and a gel bed permeability test as described herein. Having a gel bed permeability of at least 5 Darcy or more,
粒状超吸収性ポリマー組成物の製造方法。Method for producing granular superabsorbent polymer composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019053212A JP6898373B2 (en) | 2016-07-21 | 2019-03-20 | Super absorbent polymer containing cross-linking agent |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016143448A JP6695756B2 (en) | 2016-07-21 | 2016-07-21 | Superabsorbent polymer containing crosslinker |
| JP2019053212A JP6898373B2 (en) | 2016-07-21 | 2019-03-20 | Super absorbent polymer containing cross-linking agent |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016143448A Division JP6695756B2 (en) | 2016-07-21 | 2016-07-21 | Superabsorbent polymer containing crosslinker |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019116636A JP2019116636A (en) | 2019-07-18 |
| JP2019116636A5 true JP2019116636A5 (en) | 2020-07-02 |
| JP6898373B2 JP6898373B2 (en) | 2021-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019053212A Active JP6898373B2 (en) | 2016-07-21 | 2019-03-20 | Super absorbent polymer containing cross-linking agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6898373B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021210902A1 (en) * | 2020-04-13 | 2021-10-21 | 주식회사 엘지화학 | Super absorbent polymer and method for producing same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19543366C2 (en) * | 1995-11-21 | 1998-09-10 | Stockhausen Chem Fab Gmbh | Water-swellable polymers crosslinked with unsaturated amino alcohols, their preparation and use |
| US7169843B2 (en) * | 2003-04-25 | 2007-01-30 | Stockhausen, Inc. | Superabsorbent polymer with high permeability |
| JP6695756B2 (en) * | 2016-07-21 | 2020-05-20 | エボニック コーポレイションＥｖｏｎｉｋ Ｃｏｒｐｏｒａｔｉｏｎ | Superabsorbent polymer containing crosslinker |
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