TW201333110A - 分散水溶性聚合物的無水方法 - Google Patents

分散水溶性聚合物的無水方法 Download PDF

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TW201333110A
TW201333110A TW101149042A TW101149042A TW201333110A TW 201333110 A TW201333110 A TW 201333110A TW 101149042 A TW101149042 A TW 101149042A TW 101149042 A TW101149042 A TW 101149042A TW 201333110 A TW201333110 A TW 201333110A
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water
soluble polymer
slurry
water soluble
polypropylene glycol
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Anne Oberlin
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Abstract

所述者係分散及水化一水溶性聚合物的方法，包含形成一聚丙二醇、水溶性聚合物及經疏水性改質之乙氧化胺甲酸乙酯的無水漿料，但一條件為該漿料含有少於五百分比的水；並接著將該無水漿料與水相接觸以將該水溶性聚合物分散及水化。

Description

分散水溶性聚合物的無水方法 發明領域
本發明係有關於用於分散水溶性聚合物的方法及組成物。
發明背景
許多水溶性聚合物(纖維素、纖維素衍生物、膠、及類似物)係通常以固體、乾燥形式被販售，而因此粉末處理及加工性質為極為重要地。例如，一低粉塵含量係較為偏好地。同時，該乾燥粉末被由一容器或收容器傾瀉的能力係被以流動性予以描述。流動性係被顆粒形狀及尺寸分佈所影響，並造成容積密度。容積密度係每單位體積所占據之粉狀固體材料的重量。可接受的流動性通常取決於相對高的容積密度及相對低的安息角角度(angle of repose)。該安息角角度係該粉末之一圓錐狀釋出堆的斜率與其被放置之表面之間的最大角度，一較低的角度代表一更為廣泛的分佈堆。
為了將該水溶性聚合物用於其各種應用中，該水溶性聚合物須被溶解。溶解通常被敘述為一具有兩個重疊現象，分散及水化的過程。分散是指將遍及於溶液中的聚 合鏈之粒子或基團予以布散。水合是指將該聚合鏈鬆散化並將其水力體積(及相應的增黏)予以膨脹。若分散為不良的，或是水化超過分散，經水化之聚合物可膨脹且將溶液中相對乾燥、非水化之聚合物隔離並形成塊體。所欲的分散及水化通常各自藉由小量至沒有塊體的形成以及一隨著時間之快速黏性增建而被定義。
從而，工業中有需要減低前述問題(粉塵、易變地流動、不一致的分散，或不欲的水化速率)以將結合水溶性聚合物之產品的製造予以簡化。
發明概要
於一實施例中，本發明提供一將水溶性聚合物分散及水化的方法，包含形成一聚丙二醇、水溶性聚合物及經疏水性改質之乙氧化胺甲酸乙酯的無水漿料，但有條件是該漿料含有少於五百分比的水；並接著將該無水漿料與水相接觸以將該水溶性聚合物分散及水化。
該“聚丙二醇”一詞是指一具有至少三個聚丙二醇單元的由氧生成(oxygenerated)溶劑或多元醇。被考慮的是，該聚丙二醇亦可於其組成物中包括甲基醚及/或丙基醚單元，及/或為一環氧乙烷及聚丙二醇的聚丙二醇共聚物。該聚丙二醇之分子量(MW)係於148g/mol及5000g/mol之間，較佳者為206g/mol至400g/mol之間。於一實施例中，該聚丙二醇係POLYGLYCOL P-400E(CAS#：25322-69-4)或購自陶氏化學公司之DOWANOL TPM(二縮三丙二醇甲基醚，CAS#：25498-49-1)。
於一實施例中，該水溶性聚合物係至少一者為水 可溶的、天然膜成型及合成聚合物包括烷基纖維素、羥烷基纖維素醚及羥烷基烷基纖維素醚，包括甲基纖維素；羥丙基甲基纖維素(HPMC)；羥乙基甲基纖維素(HEMC)；羥乙基纖維素(HEC)；羥丙基羥乙基纖維素(HPHEC)及羥丙基纖維素(HPC)，環氧乙烷之水溶性高分子量聚合物，較佳為約20000分子量或更高者；天然產品例如瓜爾豆膠、三仙膠(xanthan gum)及水溶性增稠劑。較佳的是，該水溶性聚合物係一係選自由烷基纖維素衍生物、羥烷基纖維素衍生物、陽離子羥烷基纖維素衍生物(該陽離子種為一四級烷基胺)及羧烷基纖維素衍生物所組成之群組的水溶性經改質之纖維素醚。於一實施例中，該水溶性經改質之纖維素醚並非一延緩水化(表面處理)等級者。較佳的水溶性聚合物為羥乙基纖維素(可購自陶氏化學公司之商標CELLOSIZE)，經陽離子改質之羥乙基纖維素(cat-HEC)、羥丙基甲基纖維素(可購自陶氏化學公司之商標METHOCEL)及聚環氧乙烷(可購自陶氏化學公司之商標POLYOXTM 880)。
經疏水性改質之乙氧化氨基甲酸乙酯(HEUR)具有於20000至80000g/mol之間一MW。於一實施例中，該經疏水性改質之乙氧化氨基甲酸乙酯係購自陶氏化學公司之ACUSOLTM 880。
於一實施例中，本發明提供基本上包含聚丙二醇、水溶性聚合物及經疏水性改質之乙氧化氨基甲酸乙酯的一無水漿料，但有一條件是該漿料包含少於五百分比之水。於一實施例中，該無水漿料係不含磷者。於一實施例 中，該無水漿料係不含油者。於一實施例中，該無水漿料係不含有界面活性劑者。
本發明加速了水溶性聚合物於水中之溶解，且因此可用於個人護理及織物保養的應用，其中水溶性聚合物被水化且與個人護理及織物保養配方相結合。於一實施例中，配製時間因更快的溶解而被減少。
較佳實施例之詳細說明 範例 實例1
本發明之一無水溶液漿料以重量百分比單位敘述於表1中：
於室溫下，於一200mL塑膠燒杯中之聚丙二醇係於500rpm下被攪拌(購自德國Heidolph之Heidolph RZR 2020攪拌器及購自德國KA Werke之四葉片螺旋槳)。接著，經疏水性改質之乙氧化氨基甲酸乙酯於以500 rpm之攪拌下被加入並攪拌直至完全溶解，形成一乳白色混和物。仍然於500rpm攪拌下，該水溶性聚合物被緩慢加入，且該攪拌於500rpm下持續10-15分鐘以形成一無水漿料。
實例2
批料1-6係實質上根據範例1而製作並被測試。用視覺觀察，該六個配方於儲存於室溫、4℃、或40℃下一周後並未表現相分離。
配方3被選擇用以進一步定性，使用一Brookfield DV III Ultra可程式化流變儀、以該主軸#64測定黏度，如表2所示：
四周後，批料3仍然未有相分離且該黏度表明該漿料為穩定的。
實例3
批料1-5係實質上根據實例1而製備，並以溶解度對該相對應未反應水溶性聚合物被測試，皆於2%濃度下。結果係顯示於表3中。
被列出之各10g之新穎漿料(有效地含有2g之水溶性聚合物)被置於90g去離子水中並使用一購自德國Heidolph之Heidolph RZR 2020高架攪拌器以500rpm被攪拌2 min(於聚合加成後)。
2g之被列出之習知纖維素醚被置於98g去離子水中並使用一購自德國Heidolph之Heidolph RZR 2020高架攪拌器以500rpm被攪拌2min(於聚合加成後)。
各個溶液由一經訓練之官能檢查員評估對於該項發明技術領域具有通常知識者為已知之溶解問題的證據(魚眼(fish eye)、膠體形成、不透明)。結論為本發明提供了更快且更容易之溶解。

Claims (8)

  1. 一種將一水溶性聚合物分散及水化的方法，該方法包含：形成一聚丙二醇、水溶性聚合物及經疏水性改質之乙氧化胺甲酸乙酯的無水漿料，但一條件為該漿料含有少於五百分比的水；及接著將該無水漿料與水相接觸以將該水溶性聚合物分散及水化。
  2. 如申請專利範圍第1項之方法，其中該水溶性聚合物係選自於由烷基纖維素衍生物、羥烷基纖維素衍生物、陽離子羥烷基纖維素衍生物(該陽離子物種為一四級烷基胺)及羧烷基纖維素衍生物所組成之群組的一經水溶性改質之纖維素醚。
  3. 如申請專利範圍第1項之方法，其中該水溶性聚合物係選自於由羥乙基纖維素、經陽離子改質之羥乙基纖維素、羥丙基甲基纖維素及聚環氧乙烷所組成之群組中。
  4. 如申請專利範圍第1項之方法，其中該方法係不須額外加熱而進行。
  5. 如申請專利範圍第1項之方法，其中該聚丙二醇係一二縮三丙二醇甲基醚(Tripropylene Glycol Methyl Ether)。
  6. 一種無水漿料，該漿料實質上包含：聚丙二醇，水溶性聚合物，及 經疏水性改質之乙氧化胺甲酸乙酯，但一條件是該漿料包含少於五百分比之水。
  7. 一種包含水溶性聚合物之個人護理組成物，該組成物係藉由申請專利範圍第1項之方法而形成。
  8. 一種包含水溶性聚合物的織物保養組成物，該組成物係藉由申請專利範圍第1項之方法所形成。
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