Ultraviolet absorber and synthetic resin composition

Patent metadata

Field	Value
Publication number	US-10144814-B2
Application number	US-201515503177-A
Country	US
Kind code	B2
Filing date	Nov 11, 2015
Priority date	Nov 17, 2014
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

Provided is an ultraviolet absorbing agent that efficiently absorbs ultraviolet rays in a wide wavelength region, and in particular, has a strong absorbability in the UV-A region. Also, a synthetic resin composition having excellent weatherability is provided. Provided is an ultraviolet absorbing agent including a triazine-based compound represented by Formula (1) below. Also, a synthetic resin composition containing the ultraviolet absorbing agent is provided. R2, R3, and R4 in the triazine-based compound represented by Formula (1) below are each preferably a hydrogen atom or a methyl group, and particularly preferably a hydrogen atom.

First claim

The invention claimed is:

1. An ultraviolet absorbing agent comprising a triazine-based compound represented by Formula (1),

wherein n indicates 1 or 2,
when n is 1, R 1 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, an alkenyl group having 3 to 8 carbon atoms, an aryl group having 6 to 18 carbon atoms, an alkylaryl group having 7 to 19 carbon atoms, an arylalkyl group having 7 to 19 carbon atoms, or a glycidyl group,
when n is 2, R 1 represents an alkylene group having 1 to 20 carbon atoms, a cycloalkylene group having 3 to 8 carbon atoms, an arylene group having 6 to 18 carbon atoms, or a combination thereof,
each group represented by R 1 is optionally substituted with an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylaryl group having 7 to 13 carbon atoms, an arylalkyl group having 7 to 13 carbon atoms, a hydroxy group, a halogen atom, or a glycidyl group, or is optionally interrupted with an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, or an imido group, or these substitution and interruption are optionally combined,
and
R 2 , R 3 , and R 4 may be identical to or different from each other, and each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

2. The ultraviolet absorbing agent of claim 1 , wherein each group represented by R 1 is substituted with an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylaryl group having 7 to 13 carbon atoms, an arylalkyl group having 7 to 13 carbon atoms, a hydroxy group, a halogen atom, or a glycidyl group.

3. The ultraviolet absorbing agent of claim 1 , wherein each group represented by R 1 is interrupted with an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, or an imido group.

4. The ultraviolet absorbing agent of claim 1 , wherein each group represented by R 1 represents a combination of substitutions and interruptions,
wherein the substitutions are with an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylaryl group having 7 to 13 carbon atoms, an arylalkyl group having 7 to 13 carbon atoms, a hydroxy group, a halogen atom, or a glycidyl group, and
wherein the interruptions are with an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, or an imido group.

5. The ultraviolet absorbing agent according to claim 1 , wherein the triazine-based compound represented by Formula (1) is a triazine-based compound represented by Formula (2),

wherein, R 5 represents a linear or branched alkyl group having 1 to 12 carbon atoms, and
R 6 , R 7 , and R 8 may be identical to or different from each other, and each represent a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms.

6. A synthetic resin composition comprising a synthetic resin and the ultraviolet absorbing agent according to claim 1 .

7. A synthetic resin composition comprising a synthetic resin and the ultraviolet absorbing agent according to claim 5 .

Assignees

• Adeka Corp

Inventors

• Ueda Naoto
• Nomura Kazukiyo

Classifications

• C08K5/005

  Stabilisers against oxidation, heat, light, ozone · CPC title

• C07D251/24

  to three ring carbon atoms · CPC title

• C09K3/00 Primary

  Materials not provided for elsewhere · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C08K5/134

  Phenols containing ester groups · CPC title