Molding material for light-reflecting bodies

Inventors: Hiroshi Yamamoto (Osaka, JP); Chihiro Takeuchi (Osaka, JP); Yusuke Uraoka (Hyogo, JP)

Assignee: Panasonic Intellectual Property Management Co., Ltd.

C08F283/01 C08G63/52 C08K3/22 C08K3/36 C08K5/0025 C08K7/14 C08K7/24 C08K7/28 C08L67/06 C08K2003/2241 C08K2003/2296 H01L33/60 H01L2224/48091 H01L2224/48247 H01L2224/48257 H01L2224/97

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Quick Facts

Patent No.: US 10,196,472
App. No.: 15/310,732
Granted: Feb 5, 2019
Kind: B2

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Abstract

A molding material for light-reflecting bodies contains unsaturated polyester, cross-linking agent, and filler. The unsaturated polyester contains at least one of first unsaturated polyester having a fumaric acid residue and a 1,6-hexanediol residue, and second unsaturated polyester having a fumaric acid residue, a 1,4-butanediol residue, and a trimethylolpropane residue.

Claims (53)

1. A molding material for light-reflecting bodies, comprising

unsaturated polyester;

a cross-linking agent; and

a filler,

wherein the unsaturated polyester includes at least one of first unsaturated polyester having a fumaric acid residue, a 1,6-hexanediol residue, and a trimethylolpropane residue, and second unsaturated polyester having a fumaric acid residue, a 1,4-butanediol residue, and a trimethylolpropane residue.

2. The molding material for light-reflecting bodies according to claim 1 ,

wherein the unsaturated polyester includes the first unsaturated polyester, and

a percentage of the 1,6-hexanediol residue with respect to total polyol residues in the first unsaturated polyester is in a range from 80 mol % to 100 mol %, inclusive.

3. The molding material for light-reflecting bodies according to claim 1 ,

wherein a percentage of the trimethylolpropane residue with respect to total polyol residues in the first unsaturated polyester is more than 0 mol % and at most 15 mol %.

4. The molding material for light-reflecting bodies according to claim 1 ,

wherein the unsaturated polyester includes the first unsaturated polyester, and

the first unsaturated polyester has crystallinity.

5. The molding material for light-reflecting bodies according to claim 1 ,

wherein the unsaturated polyester includes the first unsaturated polyester, and

a glass transition temperature of the first unsaturated polyester is in a range from 30° C. to 50° C., inclusive.

6. The molding material for light-reflecting bodies according to claim 1 ,

wherein the unsaturated polyester includes the first unsaturated polyester, and

a melting point of the first unsaturated polyester is in a range from 70° C. to 100° C., inclusive.

7. The molding material for light-reflecting bodies according to claim 1 ,

wherein the unsaturated polyester includes the first unsaturated polyester, and

an iodine number of the first unsaturated polyester is in a range from 70 to 135, inclusive.

8. The molding material for light-reflecting bodies according to claim 1 ,

wherein the unsaturated polyester includes the first unsaturated polyester, and

ICI viscosity of the first unsaturated polyester at 150° C. is in a range from 0.1 Pa·s to 5 Pa·s, inclusive.

9. The molding material for light-reflecting bodies according to claim 1 ,