Invention Grant
- Patent Title: Polyvinyl butyral pellicle compositions
- Patent Title (中): 聚乙烯醇缩丁醛防护薄膜组合物
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Application No.: US694343Application Date: 1991-05-01
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Publication No.: US5244952APublication Date: 1993-09-14
- Inventor: Irl E. Ward
- Applicant: Irl E. Ward
- Applicant Address: PA
- Assignee: ACT, Incorporated
- Current Assignee: ACT, Incorporated
- Current Assignee Address: PA
- Main IPC: C08F8/28
- IPC: C08F8/28 ; C08J3/09 ; G03F1/62
Abstract:
An improved pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from a specific polyvinyl butyral resin from a casting composition which is a mixture of the specific polyvinyl butyral resin and dimethylformamide.
Public/Granted literature
- US5854702A Optical telecommunication module Public/Granted day:1998-12-29
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