Invention Grant
- Patent Title: Radiation curable coating composition based on chain-extended and cross-linked polyurethanes
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Application No.: US15537103Application Date: 2015-12-07
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Publication No.: US10584262B2Publication Date: 2020-03-10
- Inventor: Sebastian Berger , Peter Thuery , Susanne Neumann , Christine Roesch , Uwe Burkhardt , Katharina Andes , Stefan Wahl , Manfred Biehler , Sebastian Roller
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP14198469 20141217
- International Application: PCT/EP2015/078821 WO 20151207
- International Announcement: WO2016/096503 WO 20160623
- Main IPC: C08F2/48
- IPC: C08F2/48 ; C08F2/46 ; C08F2/50 ; C08G61/04 ; C09D175/14 ; C08G18/66 ; C08G18/75 ; C08G18/10 ; C08G18/32 ; C08G18/34 ; C08G18/08 ; C08G18/67 ; C08G18/18 ; C08G18/42
Abstract:
The invention relates to aqueous polyurethane dispersions that are curable with UV radiation. The polyurethanes are chain-extended with aromatic, cycloaliphatic or aliphatic diamine compound and cross-linked with aliphatic triamine compound. The polyurethanes are useful dispersions for coating various substrates. The use of the invented dispersions results in high hardness, very good flexibility and good chemical resistance in both clear coats and pigmented coatings before and after UV curing combined with very good adhesion to different substrates.
Public/Granted literature
- US20190112500A1 RADIATION CURABLE COATING COMPOSITION BASED ON CHAIN-EXTENDED AND CROSS-LINKED POLYURETHANES Public/Granted day:2019-04-18
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