Resin, preparation method therefor, resin composition, and molded article

Patent metadata

Field	Value
Publication number	US-12516151-B2
Application number	US-202218037679-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Sep 3, 2021
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

A resin, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are disclosed in herein. In some embodiments, a resin includes a unit of Chemical Formula 1 and a unit of Chemical Formula 2:wherein, in Chemical Formulae 1 and 2, Ar1, Ar2, R1, r1, X1 to X4, X9, X10, Z1, Z2, Z5, La, La″, a, b, p, t, m, n, L11, l11, X11 to X16, Z11 to Z13, Lb, Lb′, a′, b′, p′, C″, m″ and n″ are defined herein.

First claim

The invention claimed is:

1 . A resin, comprising:
a unit represented by the following Chemical Formula 1; and a unit represented by the following Chemical Formula 2:

wherein, in Chemical Formulae 1 and 2,
Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted polycyclic aryl group having 10 to 30 carbon atoms,
R1 is hydrogen, deuterium, a halogen group, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted silyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group,
r1 is an integer of 1 or 2, and when r1 is 2, each R1 is the same as or different from each other,
X1 to X4, X9 and X10 are the same as or different from each other, and are each independently O or S,
Z1, Z2 and Z5 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group,
La and La″ are the same as or different from each other, and are each independently a direct bond or —C(═O)-L-,
L is a substituted or unsubstituted arylene group,
a, b and p are the same as or different from each other, and are each independently an integer from 0 to 6, and when a, b and p are each 2 to 6, each a-group, b-group, and p-group is the same as or different from each other,
t is an integer from 1 to 6, and when t is 2 to 6, each t-group is the same as or different from each other,
m and n are the same as each other, and are 0 or 1,
when m and n are 0, t, r and s are 1, and La is-C(═O)-L-,
when m and n are 1, t is an integer from 1 to 6, r+s=1, r is 0<r<1, and s is 0<s<1,
L11 is a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, or a substituted or unsubstituted arylene group,
l11 is an integer from 1 to 5, and when l11 is 2 to 5, two or more L11 are the same as or different from each other,
X11 to X16 are the same as or different from each other, and are each independently O or S,
Z11 to Z13 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group, or a substituted or unsubstituted cycloalkylene group,
Lb and Lb′ are the same as or different from each other, and are each independently a direct bond or —C(—O)-L′-,
L′ is a substituted or unsubstituted arylene group,
a′, b′ and p′ are the same as or different from each other, and are each independently an integer from 0 to 6, and when a′, b′ and p′ are each 2 to 6, each a′-group, b′-group, and c′-group is the same as or different from each other,
t″ is an integer from 1 to 6, and when t″ is 2 to 6, each t″-group is the same as or different from each other,
m″ and n″ are the same as each other, and are 0 or 1,
when m″ and n″ are 0, t″, r′ and s′ are 1, and Lb is-C(═O)-L′-,
when m″ and n″ are 1, t″ is an integer from 1 to 6, r′+s′ is =1, r′ is 0<r′<1, and s′ 0<s′ <1.

2 . The resin of claim 1 , wherein Chemical Formula 1 is the following Chemical Formula 1-1 or 1-2:

in Chemical Formula 1-1,
Ar1, Ar2, R1, r1, X1 to X4, Z1, Z2, a and b are the same as those defined in Chemical Formula 1,
La is-C(═O)-L-,
L is a substituted or unsubstituted arylene group,
in Chemical Formula 1-2,
Ar1, Ar2, R1, r1, X1 to X4, X9, X10, Z1, Z2, Z5, a, b, t and p are the same as defined in Chemical Formula 1,
La and La″ are the same as or different from each other, and are each independently a direct bond or —C(═O)-L-,
L is a substituted or unsubstituted arylene group,
r is 0<r<1,
s is 0<s<1, and
r+s=1.

3 . The resin of claim 1 , wherein Chemical Formula 2 is the following Chemical Formula 2-1 or 2-2:

in Chemical Formula 2-1,
L11, l11, X11 to X14, Z11, Z12, a′ and b′ are the same as defined in Chemical Formula 2,
Lb is-C(═O)-L′-,
L′ is a substituted or unsubstituted arylene group, and
in Chemical Formula 2-2,
L11, l11, X11 to X16, Z11, Z12, Z13, a′, b′, t″ and p′ are the same as defined in Chemical Formula 2,
Lb and Lb′ are the same as or different from each other, and are each independently a direct bond or —C(═O)-L′-,
L′ is a substituted or unsubstituted arylene group,
r′ is 0<r′<1,
s′ is 0<s′<1, and
r′+s′=1.

4 . The resin of claim 1 , wherein Chemical Formula 2 is the following Chemical Formula 2-3:

in Chemical Formula 2-3,
X11 to X16, Z11 to Z13, Lb, Lb′, a′, b′, m″, n″, t″, s′ and r′ are the same as defined in Chemical Formula 2,
R2 and R3 are the same as or different from each other, and are each independently hydrogen, or a substituted or unsubstituted alkyl group,
r2 and r3 are each an integer from 1 to 4, and when r2 is 2 to 4, two or more R2 are the same as or different from each other, and when r3 is 2 to 4, two or more R3 are the same as or different from each other, and
L11′ and L11″ are the same as or different from each other, and are each independently a substituted or unsubstituted arylene group, or a heteroarylene group.

5 . The resin of claim 1 , wherein the resin has a weight average molecular weight of 3,000 g/mol to 500,000 g/mol.

6 . The resin of claim 1 , wherein the resin has a glass transition temperature (Tg) of 90° C. to 200° C.

7 . The resin of claim 1 , wherein the resin has a refractive index of 1.50 to 1.75, wherein the refractive index is measured at a wavelength of 587 nm or 589 nm.

8 . A method for preparing the resin of claim 1 , the method comprising:
polymerizing a composition including a compound of the following Chemical Formula 1a, a compound of the following Chemical Formula 2a, and one of a polyester precursor or a polyester precursor and a polycarbonate precursor:

wherein, in Chemical Formulae 1a and 2a,
Ar1, Ar2, R1, r1, X1 to X4, Z1, Z2, a and b are the same as defined in Chemical Formula 1, and
L11, l11, X11 to X14, Z11, Z12, a′ and b′ are the same as defined in Chemical Formula 2.

9 . The method of claim 8 , wherein the polyester precursor is represented by the following Chemical Formula A, and the polycarbonate precursor is represented by the following Chemical Formula B:

in Chemical Formulae A and B,
Ra1, Ra2, Rb1 and Rb2 are the same as or different from each other, and are each independently hydrogen, a halogen group, a hydroxyl group, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group,
Ar is a substituted or unsubstituted arylene group, and
a1 to a4 are each 0 or 1.

Assignees

• Lg Chemical Ltd

Inventors

• Choi Il Hwan
• Kim Kyeongmun
• Jung Min Suk
• Bae Jaesoon
• Shin Hyeonah
• Yim Hye Jin

Classifications

• G02B1/041 Primary

  Lenses · CPC title

• C08G63/183

  Terephthalic acids · CPC title

• C08G63/64

  Polyesters containing both carboxylic ester groups and carbonate groups · CPC title

• C08G64/06

  not containing aliphatic unsaturation · CPC title

• C08G64/307

  and phenols · CPC title