Multilayer film
Assignee3M Innovative Properties Company
InventorsPeter D. Condo, David Scott Thompson
Life of this patent
Estimating the term…
Abstract
A multilayer film includes pluralities of first layers and polymeric second layers arranged along a thickness direction of the multilayer film. The first and second layers having different compositions. At least one layer of the multilayer film includes at least one polymer and metal oxide nanoparticles dispersed in the at least one polymer. The at least one polymer includes a first polymer including (meth)acrylic acid monomer units. The metal oxide nanoparticles are surface modified with a carboxylic acid silane surface modifying agent.
Claims15
A multilayer film comprising pluralities of first layers and polymeric second layers arranged along a thickness direction of the multilayer film, the first and second layers having different compositions, each first layer comprising:
- at least one polymer, the at least one polymer comprising a first polymer comprising (meth)acrylic acid monomer units;
- and
- metal oxide nanoparticles dispersed in the at least one polymer, the metal oxide nanoparticles being surface modified with a surface modifying agent comprising a carboxylic acid silane of Formula 1:
- wherein:
- R1 is a C1 to C10 alkoxy group;
- R2 and R3 are independently selected from the group consisting of C1 to C10 alkyl and C1 to C10 alkoxy groups;
- and
- A is a linker group selected from the group consisting of C1 to C10 alkylene or arylene groups, C1 to C10 aralkylene groups, C2 to C16 heteroalkylene or heteroarylene groups, and C2 to C16 amide containing groups.
A multilayer film comprising a first layer and a plurality of alternating polymeric first and second interference layers disposed on the first layer, the first layer comprising:
- at least one polymer, the at least one polymer comprising a first polymer comprising (meth)acrylic acid monomer units;
- and
- metal oxide nanoparticles dispersed in the at least one polymer, the metal oxide nanoparticles being surface modified with a surface modifying agent comprising a carboxylic acid silane of Formula 1:
- wherein:
- R1 is a C1 to C10 alkoxy group;
- R2 and R3 are independently selected from the group consisting of C1 to C10 alkyl and C1 to C10 alkoxy groups;
- and
- A is a linker group selected from the group consisting of C1 to C10 alkylene or arylene groups, C1 to C10 aralkylene groups, C2 to C16 heteroalkylene or heteroarylene groups, and C2 to C16 amide containing groups.
Dependencies are inferred from the claim text.