发明公开
- 专利标题: THERMOPLASTIC POLYURETHANE WITH REDUCED TENDENCY TO BLOOM
- 专利标题(中): 热塑性聚氨酯麻醉剂AUSBLÜHNEIGUNG
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申请号: EP10705766.3申请日: 2010-02-25
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公开(公告)号: EP2408831A1公开(公告)日: 2012-01-25
- 发明人: FARKAS, Julius , JACOBS, Charles P.
- 申请人: Lubrizol Advanced Materials, Inc.
- 申请人地址: 9911 Brecksville Road Cleveland, OH 44141-3247 US
- 专利权人: Lubrizol Advanced Materials, Inc.
- 当前专利权人: Lubrizol Advanced Materials, Inc.
- 当前专利权人地址: 9911 Brecksville Road Cleveland, OH 44141-3247 US
- 代理机构: von Kreisler Selting Werner
- 优先权: US161162P 20090318
- 国际公布: WO2010107562 20100923
- 主分类号: C08G18/08
- IPC分类号: C08G18/08 ; C08G18/32 ; C08G18/42 ; C08G18/66 ; C08G18/76
摘要:
A process of making a thermoplastic polyurethane by the reaction of (1) a hydroxyl terminated polyester intermediate, wherein the hydroxyl terminated polyester intermediate is comprised of repeat units that are derived from adipic acid and a glycol component comprising 1,3-propylene glycol, and said hydroxyl terminated intermediate has a number average molecular weight which is within the range of 500 to 10,000 Daltons, (2) a diisocyanate; and (3) a glycol chain extender. This thermoplastic polyurethane by this process is unique in that it has a greatly reduced tendency to bloom. This is highly desirable in applications where high clarity is desired because blooming causes articles containing the thermoplastic polyurethane to be hazy or foggy in appearance. Blooming can also reduce the ability of an article made with the thermoplastic polyurethane to be securely bound to another article with an adhesive.
公开/授权文献
- EP2408831B2 THERMOPLASTIC POLYURETHANE WITH REDUCED TENDENCY TO BLOOM 公开/授权日:2020-03-04
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