Invention Grant
- Patent Title: Transparent light-weight safety glazings
- Patent Title (中): 透明轻质安全玻璃
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Application No.: US12215839Application Date: 2008-06-30
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Publication No.: US07641965B1Publication Date: 2010-01-05
- Inventor: Stephen J. Bennison , David F. Kristunas , Andres Ovalle
- Applicant: Stephen J. Bennison , David F. Kristunas , Andres Ovalle
- 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
- Agency: Kelly Law Registry
- Agent Maria M. Kourtakis
- Main IPC: B32B7/02
- IPC: B32B7/02 ; B32B17/10

Abstract:
Provided is a transparent and light-weight ballistic resistant safety glazing comprising an ionomer sheet. The ionomer sheet comprises an ionomer derived from a parent acid copolymer that comprises copolymerized units of an α-olefin having 2 to 10 carbon atoms and, based on the total weight of the acid copolymer, about 20 to about 30 wt % of copolymerized units of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbon atoms. The ionomer is neutralized to a level of about 5% to about 90%, based on the total carboxylic acid content of the acid copolymer, and further comprises at least one cation. Further provided are articles comprising the light-weight ballistic resistant safety glazing.
Public/Granted literature
- US20090324935A1 TRANSPARENT LIGHT-WEIGHT SAFETY GLAZINGS Public/Granted day:2009-12-31
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