发明申请
US20100286434A1 Ethylenically unsaturated monomers for thickener compositions
审中-公开
用于增稠剂组合物的烯键式不饱和单体
- 专利标题: Ethylenically unsaturated monomers for thickener compositions
- 专利标题(中): 用于增稠剂组合物的烯键式不饱和单体
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申请号: US12802102申请日: 2010-05-28
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公开(公告)号: US20100286434A1公开(公告)日: 2010-11-11
- 发明人: Barrett Richard Bobsein , Melissa Merlau Johnson , Thomas Glenn Madle , John Joseph Rabasco
- 申请人: Barrett Richard Bobsein , Melissa Merlau Johnson , Thomas Glenn Madle , John Joseph Rabasco
- 主分类号: C07C69/533
- IPC分类号: C07C69/533 ; C07C271/12 ; C07C215/28
摘要:
New ethylenically unsaturated monomers are provided that can be (co)polymerized to provide a composition and method whereby the same group that is attached to or within the backbone of an associative thickener is reversibly switched between being hydrophilic and hydrophobic in nature. When the group that is attached to or within the backbone is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this group is rendered hydrophobic, the thickener performs its thickening function efficiently. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened. The thickeners are prepared from the novel monomers by an aqueous solution polymerization.