Invention Grant
US08025826B2 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
有权
具有方向表面图案的玻璃/聚乙烯醇缩丁醛层压体及其制备方法
- Patent Title: Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
- Patent Title (中): 具有方向表面图案的玻璃/聚乙烯醇缩丁醛层压体及其制备方法
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Application No.: US12507273Application Date: 2009-07-22
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Publication No.: US08025826B2Publication Date: 2011-09-27
- Inventor: Chul Won Choi , Sang Gyu Lee
- Applicant: Chul Won Choi , Sang Gyu Lee
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: B28B3/20
- IPC: B28B3/20
Abstract:
De-airing of PVB/glass laminates can be improved, while haze in the pre-press is minimized and sleep time reduced as a result using a PVB sheet having a roughened surface with directionality. A roughened surface with a washboard pattern that is useful in this regard can be obtained by varying certain conditions of a melt-fracture extrusion process.
Public/Granted literature
- US20090277573A1 GLASS/POLYVINYLBUTYRAL LAMINATES HAVING DIRECTIONAL SURFACE PATTERNS AND A PROCESS FOR PREPARING SAME Public/Granted day:2009-11-12
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