Polymer dispersed liquid crystal films formed by electron beam curing
First Claim
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1. A film comprising:
- birefringent nematic and/or birefringent chiral nematic liquid crystal microdroplets dispersed in a film of an electron beam cured reaction product;
said electron beam cured reaction product comprising triallyl/isocyanurate and pentaerythritol tetrakis(2-mercapto propanoate) and excluding any photoinitiator;
said microdroplets displaying positive dielectric anisotropy and/or positive diamagnetic anisotropy;
said film being capable of undergoing repeated thermally and electrically or magnetically induced transitions between opaque and transparent.
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Abstract
Optically responsive films comprising birefringent nematic and/or birefringent chiral nematic liquid crystal microdroplets dispersed in electron beam cured polymeric reaction products are disclosed.
101 Citations
1 Claim
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1. A film comprising:
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birefringent nematic and/or birefringent chiral nematic liquid crystal microdroplets dispersed in a film of an electron beam cured reaction product; said electron beam cured reaction product comprising triallyl/isocyanurate and pentaerythritol tetrakis(2-mercapto propanoate) and excluding any photoinitiator; said microdroplets displaying positive dielectric anisotropy and/or positive diamagnetic anisotropy; said film being capable of undergoing repeated thermally and electrically or magnetically induced transitions between opaque and transparent.
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Specification
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Current AssigneeBrown University
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Original AssigneeGeneral Motors Corporation (Motors Liquidation Co. GUC Trust)
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InventorsSmith, George W., Vaz, Nuno A.
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Primary Examiner(s)NOT, DEFINED
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Assistant Examiner(s)Treanor, Richard
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Application NumberUS07/411,178Time in Patent Office424 DaysField of Search428/1, 128/736, 252/299.5, 252/299.66, 252/299.01, 350/331 R, 350/351, 350/347 V, 350/347 R, 427/54.1, 427/44US Class Current252/299.5CPC Class CodesC09K 19/544 as dispersing or encapsulat...C09K 2323/00 Functional layers of liquid...
