US2018078509A1PendingUtilityA1

Core-shell nanoparticles

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Assignee: DSM IP ASSETS BVPriority: Sep 6, 2006Filed: Nov 29, 2017Published: Mar 22, 2018
Est. expirySep 6, 2026(~0.2 yrs left)· nominal 20-yr term from priority
Inventors:Nanning Joerg ArfstenSteven Peter ArmesPascal Jozef Paul BuskensJens Christoph ThiesPatrick Wilhelmus Antonius Vrijaldenhoven
A61P 43/00Y10T428/2998C09D 7/70G02B 1/11Y10T428/254G02B 1/111G02B 1/10C08K 9/00C08K 2201/013C08L 53/00C08K 3/34C08K 2201/011C09D 1/00C08K 9/12C08K 3/36C08K 9/02C09D 133/14A61K 9/501C08L 2207/53A61K 9/5089C09D 7/1291C23C 18/127C23C 18/1254C03C 17/009B82Y 40/00A61K 9/50C09D 7/61C09D 7/65
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Claims

Abstract

Compositions suitable for forming an optical coating are provided, wherein the compositions include core-shell nanoparticles having (a) a core material which includes a polymer; and (b) a shell material which includes a metal oxide.

Claims

exact text as granted — not AI-modified
1 . An optical coating composition comprising core-shell nanoparticles, wherein the nanoparticles comprise:
 (a) core material comprising a polymer; and   (b) shell material comprising a metal oxide.   
     
     
         2 . The composition according to  claim 1 , wherein the core material is cationic. 
     
     
         3 . The composition according to  claim 1 , wherein the polymer is selected from polyesters, polyamides, polyurethanes, polystyrenes, poly(meth)acrylates, copolymers and combinations thereof. 
     
     
         4 . The composition according to  claim 1 , wherein the polymer is selected from latexes, diblock-copolymers, triblock copolymers, and combinations thereof. 
     
     
         5 . The composition according to  claim 1 , wherein the polymer is selected from cationic polymers. 
     
     
         6 . The composition according to  claim 1 , wherein the metal oxide is silica. 
     
     
         7 . The composition according to  claim 1 , wherein the composition further comprises a binder. 
     
     
         8 . The composition according to  claim 7 , wherein the binder comprises an inorganic oxide. 
     
     
         9 . The composition according to  claim 1 , wherein the nanoparticles have a potential void fraction of 5% to 90%. 
     
     
         10 . The composition according to  claim 1 , wherein the nanoparticles have an average size of 10-200 nm. 
     
     
         11 . The composition according to  claim 1 , wherein the composition is an antireflective coating composition. 
     
     
         12 . The composition according to  claim 1 , wherein the core material is thermo-labile at a temperature of 150° C. to 600° C. 
     
     
         13 . A substrate at least partially coated with a coating comprising the optical coating composition according to  claim 1 . 
     
     
         14 . The substrate according to  claim 13 , wherein the coating has a thickness of 50-300 nm. 
     
     
         15 . An article comprising the substrate according to  claim 13 . 
     
     
         16 . A coating composition comprising core-shell nanoparticles, wherein the nanoparticles have a rod or worm-like morphology and comprise:
 (c) core material comprising a polymer; and   (d) shell material comprising a metal oxide.

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