Invention Grant
- Patent Title: Cavitation resistant polyurethane compositions and methods of forming coating films using the same
- Patent Title (中): 防气蚀聚氨酯组合物和使用其制备涂膜的方法
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Application No.: US14204291Application Date: 2014-03-11
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Publication No.: US09255204B2Publication Date: 2016-02-09
- Inventor: Jun-Young Choi , Ja-Min Gu , Jae-Hak Kim
- Applicant: Jun-Young Choi , Ja-Min Gu , Jae-Hak Kim
- Applicant Address: KR Anyang-Si
- Assignee: NOROO HOLDINGS CO., LTD
- Current Assignee: NOROO HOLDINGS CO., LTD
- Current Assignee Address: KR Anyang-Si
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Priority: KR10-2014-0005392 20140116
- Main IPC: C08G18/22
- IPC: C08G18/22 ; C08G18/40 ; C08G18/44 ; C08G18/48 ; C08G18/72 ; C08G18/76 ; C08G18/79 ; C08K3/04 ; C09D5/00 ; C09D7/12 ; C09D175/04 ; B82Y30/00 ; B05D1/02 ; C08G18/10 ; C08L75/06 ; C08L75/08 ; C08G18/42 ; C08L75/04

Abstract:
A cavitation resistant polyurethane composition includes a first solution comprising a urethane prepolymer and a second solution. The urethane prepolymer is synthesized by a polymerization of about 60 to about 70 weight percent of an isocynate compound and about 30 to about 40 weight percent of a polyol. An average functional group number of the isocyanate compound is at least 2. The second solution includes about 90 to about 95 weight percent of a polyol having an average functional group number of at least 4, about 1 to about 3 weight percent of a nano-carbon, about 1 to about 3 weight percent of a colorant, about 1 to about 3 weight percent of a moisture absorbent, about 1 to about 3 weight percent of an anti-wear agent, and about 1 to about 3 weight percent of a defoaming agent.
Public/Granted literature
- US20150197641A1 CAVITATION RESISTANT POLYURETHANE COMPOSITIONS AND METHODS OF FORMING COATING FILMS USING THE SAME Public/Granted day:2015-07-16
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