JP2020518702A - 疎水性溶媒中に分散されたモノマー水溶液の重合による超吸収剤粒子の不連続的な製造方法 - Google Patents
疎水性溶媒中に分散されたモノマー水溶液の重合による超吸収剤粒子の不連続的な製造方法 Download PDFInfo
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Classifications
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- 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
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
-
- 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
- C08F2/04—Polymerisation in solution
- C08F2/06—Organic solvent
- C08F2/08—Organic solvent with the aid of dispersing agents for the polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or 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 of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
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Abstract
Description
a)少なくとも部分的に中和されていてよい、少なくとも1つのエチレン性不飽和酸基担持モノマー、
b)少なくとも1つの架橋剤、
c)少なくとも1つの開始剤、
d)任意で、1つまたは複数の、a)で挙げられたモノマーと共重合可能なエチレン性不飽和モノマー、および
e)任意で、1つまたは複数の水溶性ポリマー
を含有する。
計算のためには、米国特許出願公開2015/0080539号明細書の比較例1の方法を使用した。2つの並列した撹拌容器を反応器として想定した。撹拌容器のバッチ時間とは、反応サイクルの持続時間、つまり、同じ撹拌容器内での反応開始から次の反応開始までの時間である。第2の撹拌容器での反応を、時間的に第1の撹拌容器での反応後に開始させた。それぞれ、双方の撹拌容器に必要な最大冷却能力を算出した。
例1〜10と同様に、2つ(例11)、3つ(例12)および4つ(例13)の並列した撹拌容器の最大冷却エネルギーに対する最大節約量を算出した。
Claims (9)
- 少なくとも2つの並列した撹拌容器内で、疎水性溶媒中に分散されたモノマー水溶液を重合することにより、超吸収剤粒子を不連続的に製造する方法において、前記少なくとも2つの撹拌容器を、時間的にずらして運転させ、時間的に連続する2つの撹拌容器それぞれの反応開始の相対的な時間差は、バッチ時間の50%/n〜150%/nの範囲にあり、nは、並列した撹拌容器の数であり、前記バッチ時間は、同じ撹拌容器内での反応開始から次の反応開始までの時間であることを特徴とする方法。
- 時間的に連続する2つの撹拌容器それぞれのバッチの開始の時間差は、前記バッチ時間の65%/n〜135%/nの範囲であることを特徴とする、請求項1記載の方法。
- 時間的に連続する2つの撹拌容器それぞれの前記バッチの開始の時間差は、前記バッチ時間の80%/n〜120%/nの範囲であることを特徴とする、請求項1または2記載の方法。
- 時間的に連続する2つの撹拌容器それぞれの前記バッチの開始の時間差は、前記バッチ時間の90%/n〜110%/nの範囲であることを特徴とする、請求項1から3までのいずれか1項記載の方法。
- 2つ、3つ、または4つの並列した撹拌容器を運転させる(n=2、3、4)ことを特徴とする、請求項1から4までのいずれか1項記載の方法。
- ちょうど2つの並列した撹拌容器を運転させる(n=2)ことを特徴とする、請求項1から5までのいずれか1項記載の方法。
- 前記疎水性溶媒は、炭化水素または炭化水素混合物であることを特徴とする、請求項1から6までのいずれか1項記載の方法。
- 前記炭化水素または前記炭化水素混合物は、50〜150℃の範囲で沸騰することを特徴とする、請求項7記載の方法。
- 前記モノマー水溶液は、少なくとも1つのモノマーa)、少なくとも1つの架橋剤b)および少なくとも1つの開始剤c)を含有することを特徴とする、請求項1から8までのいずれか1項記載の方法。
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PCT/EP2018/060548 WO2018202490A1 (de) | 2017-05-02 | 2018-04-25 | Verfahren zur diskontinuierlichen herstellung von superabsorberpartikeln durch polymerisation einer in einem hydrophoben lösungsmittel dispergierten wässrigen monomerlösung |
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