High refractive index chemical composition and polymers and polymeric material derived therefrom

• US 6,355,754 B1
• Filed: 05/09/1997
• Issued: 03/12/2002
• Est. Priority Date: 05/09/1997
• Status: Expired due to Fees

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Olson, David B., Fong, Bettie C.
• Primary Examiner(s): HENDERSON JR, CHRISTOPHER A
• Application Number:
  US08/853,995
• Time in Patent Office: 1,768 Days
• Field of Search: 526/296, 526/292.5
• US Class Current: 526/296
• CPC Class Codes: C08F 220/22 Esters containing halogen
• CPC Class Codes: C08L 33/14 of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: G02B 1/04 made of organic materials, e.g. plastics G02B1/08 takes precedence

Abstract

Described are a polymerizable composition comprising an alkyl-substituted brominated phenolic ester (meth)acrylate monomer having an index of refraction of at least 1.50, and, polymeric materials derived therefrom.

Claims

1. A polymerizable composition comprising:

an alkyl-substituted brominated phenolic ester (meth)acrylate monomer selected from the group consisting of 4,6-dibromo-2-sec-butyl phenyl acrylate, 4,6-dibromo-2-tert-butyl phenyl acrylate, and 4,6-dibromo-2-isopropyl phenyl acrylate; and

at least one aromatic (meth)acrylate comonomer, different from the brominated phenolic ester (meth)acrylate monomer, having an index of refraction greater than about 1.50.

2. A polymerizable composition comprising:

an alkyl-substituted brominated phenolic ester (meth)acrylate monomer selected from the group consisting of 4,6-dibromo-2-sec-butyl phenyl acrylate, 4,6-dibromo-2-tert-butyl phenyl acrylate, and 4,6-dibromo-2-isopropyl phenyl acrylate; and

at least one aromatic methacrylate comonomer, different from the brominated phenolic ester (meth)acrylate monomer;

wherein the composition has a refractive index of at least about 1.56.

3. A polymeric material comprising monomeric units derived from ingredients comprising:

an alkyl-substituted brominated phenolic ester (meth)acrylate monomer selected from the group consisting of 4,6-dibromo-2-sec-butyl phenyl acrylate, 4,6-dibromo-2-tert-butyl phenyl acrylate, and 4,6-dibromo-2-isopropyl phenyl acrylate; and

at least one aromatic (meth)acrylate comonomer, different from the brominated phenolic ester (meth)acrylate monomer, having an index of refraction greater than about 1.50.

4. A polymeric material comprising monomeric units derived from ingredients comprising:

an alkyl-substituted brominated phenolic ester (meth)acrylate monomer is selected from the group consisting of 4,6-dibromo-2-sec-butyl phenyl acrylate, 4,6 dibromo-2-tert-butyl phenyl acrylate, and 4,6-dibromo-2-isopropyl phenyl acrylate; and

at least one aromatic methacrylate comonomer, different from the brominated phenolic ester (meth)acrylate monomer;

wherein the composition has a refractive index of at least about 1.56.