US2016097884A1PendingUtilityA1

Microstructured optical films comprising fluorene-containing monomer

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Assignee: 3M INNOVATIVE PROPERTIES COPriority: Dec 22, 2008Filed: Dec 14, 2015Published: Apr 7, 2016
Est. expiryDec 22, 2028(~2.4 yrs left)· nominal 20-yr term from priority
Inventors:Bryan V. HuntEric W. Nelson
G02B 5/045C08F 290/06C08F 289/00C08L 51/08C08L 51/00C09D 151/08C08L 51/003G02B 1/04C09D 151/003C08J 5/18Y10T428/24355C08F 265/04C08F 291/00
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Claims

Abstract

Polymerizable resin compositions and microstructures comprising the reaction product of such polymerizable resin compositions are described. The microstructures comprise the reaction product of a polymerizable resin composition comprising an organic portion having a refractive index of at least 1.56 wherein the polymerizable resin composition comprises a fluorene-containing monomer.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A microstructured film comprising a polymerized microstructured surface wherein the microstructures comprise the reaction product of a polymerizable resin composition comprising an organic portion having a refractive index of at least 1.56, the organic component comprising a di(meth)acrylate monomer that is a fluorene-containing monomer, at least one aromatic monofunctional (meth)acrylate monomer, and inorganic particles. 
     
     
         2 . The microstructured film of  claim 1  wherein the mono(meth)acrylate monomer is a sulfur-containing aromatic monomer. 
     
     
         3 . The microstructured film of  claim 1  wherein the polymerizable resin is non-brominated. 
     
     
         4 . The microstructured film of  claim 1  wherein the polymerizable resin is non-halogenated. 
     
     
         5 . The microstructured film of  claim 1  wherein the polymerizable resin comprises at least one aromatic monomer or oligomer having a refractive index of least 1.585. 
     
     
         6 . The microstructured film of  claim 1  wherein the polymerizable resin comprises no greater than 1% by weight of non-polymerizable additives other than photoinitiator. 
     
     
         7 . The microstructured film of  claim 1  wherein the inorganic particles comprises zirconia. 
     
     
         8 . The microstructured film of  claim 1  wherein the film is a brightness enhancing film. 
     
     
         9 . The microstructured film of  claim 1  wherein the polymerizable resin further comprises a polymerizable ultraviolet absorbing compound. 
     
     
         10 . The microstructured film of  claim 1  wherein the organic portion has a viscosity of less than 1000 cps at 25° C.

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