发明名称 |
Polyester resin and optical lens |
摘要 |
A polyester resin having a diol unit containing a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit containing a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %:;
wherein A represents an aromatic ring selected from the group consisting of benzene, naphthalene, anthracene, phenanthrene and pyrene; R1 represents a C1 to C12 alkyl group, a substituted or unsubstituted C6 to C12 aryl group or a halogen atom; n represents an integer of 0 to 4; and when plural R1 are present, R1 may be the same as or different from each other. |
申请公布号 |
US9234986(B2) |
申请公布日期 |
2016.01.12 |
申请号 |
US201414166142 |
申请日期 |
2014.01.28 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
Minezaki Takuya;Hirokane Takeshi;Oguro Dai |
分类号 |
C08G63/02;C08K5/1575;G02B1/04;C08G63/181;C08G63/672 |
主分类号 |
C08G63/02 |
代理机构 |
Orgami & Bernstein, P.L.C. |
代理人 |
Orgami & Bernstein, P.L.C. |
主权项 |
1. A polyester resin comprising:
a diol unit, which contains a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit, which contains a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %:wherein A represents benzene; R1 represents an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms or a halogen atom; n represents an integer of 1 to 4; and when plural R1 are present, R1 may be the same as or different from each other. |
地址 |
Tokyo JP |