Microstructured optical films comprising polymerizable ultraviolet absorber

• US 8,530,595 B2
• Filed: 12/17/2009
• Issued: 09/10/2013
• Est. Priority Date: 12/22/2008
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Hunt, Bryan V., Nelson, Eric W.
• Primary Examiner(s): Choi, Ling
• Assistant Examiner(s): WANG, CHUN CHENG
• Application Number:
  US13/125,190
• Publication Number:
  US 20110244182A1
• Time in Patent Office: 1,363 Days
• Field of Search: 526/259, 526/313, 428/141
• US Class Current: 526/259
• CPC Class Codes: C08F 265/04 on to polymers of esters
• CPC Class Codes: C08F 289/00 Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
• CPC Class Codes: C08F 290/06 Polymers provided for in subclass C08G
• CPC Class Codes: C08F 291/00 Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 51/003 grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds C08L51/04, C08L51/06 take precedence
• CPC Class Codes: C08L 51/08 grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
• CPC Class Codes: C09D 151/003 grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds C09D151/04, C09D151/06 take precedence
• CPC Class Codes: C09D 151/08 grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: G02B 1/04 made of organic materials, e.g. plastics G02B1/08 takes precedence
• CPC Class Codes: G02B 5/045 Prism arrays
• CPC Class Codes: Y10T 428/24355 Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

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 polymerizable ultraviolet absorbing compound.

Claims

1. A polymerizable resin composition comprising

i) 1% to 20% by weight of one or more (meth)acrylate monomers represented by the formula

UVA-L_v-A

wherein,

UVA is a substituted or unsubstituted core structure selected from the group consisting of

2. The polymerizable resin of claim 1 wherein the polymerizable resin composition comprises one or more polymerizable ultraviolet absorbing compounds in a total amount ranging from about 1 wt-% to about 10 wt-%.

3. The polymerizable resin of claim 1 wherein the polymerizable resin is non-brominated.

4. The polymerizable resin of claim 1 wherein the polymerizable resin is non-halogenated.

5. The polymerizable resin of claim 1 wherein the polymerizable resin comprises at least one (meth)acrylate aromatic monomer or oligomer wherein the monomer or oligomer comprises sulfur, naphthyl, fluorene, or a mixture thereof.

6. The polymerizable resin of claim 1 wherein the polymerizable resin further comprises at least one di(meth)acrylate monomer or oligomer comprising at least two aromatic groups.

7. The polymerizable of claim 1 wherein the polymerizable resin further comprises at least one mono(meth)acrylate monomer comprising at least one aromatic group.

8. The polymerizable resin of claim 1 wherein the polymerizable resin further comprises no greater than 1% by weight of non-polymerizable additives other than photoinitiator.