US 9,422,475 B2Granted

Optically anisotropic compound and resin composition comprising the same

AssigneeLG Chem, Ltd.

InventorsJaeho Cheong, Minjin Ko, Kiyoul Lee, Bumgyu Choi, Myungsun Moon, Daeho Kang, YunBong Kim

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Abstract

Disclosed is a compound having high optical anisotropy and high compatibility with a polymer resin, which is represented by Formula 1 and necessarily has at least one meta substituent. Also, a resin composition including the compound and a polymer resin, and an optical member including the resin composition are disclosed. Since the compound represented by Formula 1 is an anisotropic compound having high compatibility with a polymer resin and high optical anisotropy, in the case of an optical member obtained by using a polymer resin composition including the compound represented by Formula 1, there is no phase separation, and it is possible to achieve a required optical characteristic with only a small amount thereof.

Claims17

Dependent claims

A compound represented by Formula 1:

wherein
represents
represents
represents
each of Q1 to Q15 represents —H;
Z represents C;
each of l, m and n independently represents an integer of 0 to 2, and l+m+n is an integer equal to or more than 2;
Y represents —SO—, —C≡C—, —C(═O)O(CH2)q—, —OC(═O)(CH2)q—, —(CH2)qC(═O)O—, —(CH2)qOC(═O)—, —C(═O)(CH2)q—, or —(CH2)qC(═O)—, and q is an integer of 0 to 5;
G1 is a direct bond;
G2 is a direct bond;
E represents —H or —CN;
each of X1 and X2 independently represents —O— or —(CH2)p—, and p represents an integer of 0 to 2;
each of R1 and R2 represents —H, C3-C12 branched alkyl, or C3-C12 branched alkenyl;
at least one of X1—R1 and X2—R2 is not —(CH2)p—H, in which p is 0;
and
at least one of R1 and R2 is C3-C12 branched alkyl or C3-C12 branched alkenyl.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/451,853Filed 4 Jun 2008
Priority: KR 10-2007-00550055 Jun 2007
Published: US 2010/0137484 A13 Jun 2010
Granted: 23 Aug 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

C09K 19/2007
Linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers: the chain containing -COO- or -OCO- groups
C09K 19/16
Linked by a carbon chain: the chain containing carbon-to-carbon double bonds, e.g. stilbenes
C09K 19/18
Linked by a carbon chain: the chain containing carbon-to-carbon triple bonds, e.g. tolans
C09K 19/28
Containing at least two benzene rings: linked by a chain containing carbon and sulfur atoms as chain links, e.g. thioesters