Resin composition, molded body, optical lens, and optical lens unit

Patent metadata

Field	Value
Publication number	US-12091498-B2
Application number	US-201917413984-A
Country	US
Kind code	B2
Filing date	Dec 23, 2019
Priority date	Dec 27, 2018
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

Provided is an optical resin composition for lenses that contains a resin having a structural unit represented by formula (1), and a binaphthalene compound and/or a binaphthalene compound oligomer having a structural unit represented by formula (2). A, p, K 1 , K 2 , Z, and q in formula (1) are as described in the present specification. R 1 -R 10 , a, and b in formula (2) are as described in the present specification.

First claim

The invention claimed is:

1. An optical resin composition comprising:
a resin having a structural unit represented by Formula (1) below; and
a binaphthalene compound having a structure represented by Formula (2) below and/or an oligomer thereof:

(in Formula (1),
A represents a C1-C5 alkylene group,
p represents 0 or 1,
K1 represents a hydrogen atom or a C1-C5 alkyl group,
K2 represents a hydrogen atom, a C1-C5 alkyl group or a C6-C20 aryl group,
Z each independently represent a carboxyl group, an alkoxycarbonyl group, a cycloalkyloxycarbonyl group, an aryloxycarbonyl group, a hydroxyalkylcarbonyl group, a glycidyloxycarbonyl group, a cyano group or an amide group, and
q represents 0 or 1); and

(in Formula (2),
R1-R10 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a C1-C6 alkyl group, a C6-C20 aryl group which may contain a heterocyclic atom selected from O, N and S, a C2-C10 alkenyl group, a C2-C10 alkynyl group, a C1-C6 alkoxy group or a C7-C17 aralkyl group, provided that the alkyl group, the aryl group, the alkenyl group, the alkynyl group, the alkoxy group and the aralkyl group may be substituted with a cyano group, and that the alkyl group, the alkenyl group, the alkynyl group, the alkoxy group and the aralkyl group may be substituted with a phenyl group,
X each independently represent a C1-C8 alkylene group, a C5-C12 cycloalkylene group or a C6-C20 arylene group, and
a and b each independently represent an integer of 1-10);

wherein the ratio of Mass A of the resin having a structural unit represented by Formula (1) to Total mass B of the binaphthalene compound represented by Formula (2) and the oligomer thereof is A/B (mass ratio)=99/1−80/20.

2. The optical resin composition according to claim 1 , wherein, in Formula (1), A is an ethylene group, p is 1, K1 is a hydrogen atom or a methyl group, K2 is a hydrogen atom, and Z is selected from any substituent of Formula (3) below:

3. The optical resin composition according to claim 1 , wherein the ratio A/B (mass ratio)=97/3−82/18.

4. The optical resin composition according to claim 1 , wherein the binaphthalene compound comprises a compound represented by Formula (4) or (5) below:

(in Formula (4), R1-R10, a and b are synonymous with R1-R10, a and b in Formula (1)); and

(in Formula (5), R1-R10, a and b are synonymous with R1-R10, a and b in Formula (1)).

5. The optical resin composition according to claim 1 , wherein the binaphthalene compound comprises at least one of the compounds represented by Formulae (2-1)-(2-5) below:

6. The optical resin composition according to claim 1 , wherein the molecular weight (Mw) of the oligomer is 5,000 or less.

7. The optical resin composition according to claim 1 , wherein the molecular weight (Mw) of the resin is 10,000 or more but not more than 60,000.

8. The optical resin composition according to claim 1 , wherein the refractive index in accordance with JIS-B-7071 is 1.510-1.600.

9. The optical resin composition according to claim 1 , wherein the Abbe number in accordance with JIS-B-7090 is 35-50.

10. The optical resin composition according to claim 1 , wherein the MVR value in accordance with JIS-B-7210 under the conditions of 260° C. and 2.16 kg is 8-30 (cm3/10 min).

11. The optical resin composition according to claim 1 , which is a resin composition for lenses.

12. A molded body comprising the optical resin composition according to claim 1 .

13. An optical lens comprising the optical resin composition according to claim 1 .

14. An optical lens unit comprising the optical lens according to claim 13 .

Assignees

• Mitsubishi Gas Chemical Co

Inventors

• Suematsu Mitsutake
• Motegi Atsushi
• Ishihara Kentaro
• NISHIMORI Katsushi
• Ikeda Shinya
• Kato Noriyuki
• Kondo Mitsuteru
• Oshima Kensuke
• Kanda Masahiro
• Suzuki Shoko
• OGATA Tatsunobu

Classifications

• G02B1/041

  Lenses · CPC title

• C08K5/12

  of cyclic polycarboxylic acids · CPC title

• C08K5/06

  Ethers; Acetals; Ketals; Ortho-esters · CPC title

• C08K5/09

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title

• C08G2261/3324

  derived from norbornene · CPC title