发明申请
- 专利标题: Reactive Amine-Functional Silicone-Polyether Block Copolymers
- 专利标题(中): 活性胺官能硅氧烷 - 聚醚嵌段共聚物
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申请号: US13639234申请日: 2011-04-06
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公开(公告)号: US20130030131A1公开(公告)日: 2013-01-31
- 发明人: Brian P. Deeth , John Joseph Kennan , Kevin Dale Lewis
- 申请人: Brian P. Deeth , John Joseph Kennan , Kevin Dale Lewis
- 申请人地址: US MI MIDLAND
- 专利权人: DOW CORNING CORPORATION
- 当前专利权人: DOW CORNING CORPORATION
- 当前专利权人地址: US MI MIDLAND
- 国际申请: PCT/US11/31322 WO 20110406
- 主分类号: C08G77/50
- IPC分类号: C08G77/50
摘要:
Silicone-polyether block copolymers are disclosed, having the average formula: R4R12Si(OR52Si)m{[R2O(CqH2qO)pR2R12Si(OR52Si)k]nR2O(CqH2qO)pR2R12Si)m}hOSiR12R4 wherein R1 is C1-C10 hydrocarbyl; R2 is C1-C10 hydrocarbylene; R3 is R1 or H; R4 is —R2—NR32 or —R2—NR3—R2—NR32; R5 is R1 or R4; h is 1 to 100; k is 2 to 500; m is 2 to 500; n is 0 to 30; p is 2 to 120; and q is 2 to 4. The silicone-polyether block copolymers comprise two terminal amine functionalities and may comprise varying degrees of pendent amine functionality. In a method for synthesizing linear silicone-polyether block copolymers of the above formula, a reaction mixture is formed by combining a polyether, an organosilicon component, an endblocking agent, and a catalyst. Thereupon, the reaction mixture is heated to produce a silicone-polyether block copolymer having at least one pendent amine functionality and a number-average molecular weight from 2000 to 500,000. Also disclosed are silicone-polyether block copolymers prepared according to the above method.