公开(公告)号：US20210147621A1

公开(公告)日：2021-05-20

申请号：US16638594

申请日：2018-07-13

申请人： TEIJIN LIMITED

发明人： Kyosuke YAMADA ,  Manabu MATSUI ,  Takatsune YANAGIDA ,  Kazuyoshi OGASAWARA ,  Kazunori NUNOME ,  Keisuke SATO ,  Yasuhiko TOMONARI

IPC分类号： C08G64/06 ,  C08G63/64 ,  C08G63/672 ,  C08G64/30 ,  G02B1/04

摘要： The purpose of the present invention is to provide a thermoplastic resin that has a high refractive index and enables low birefringence and balanced heat resistance and moldability. This thermosetting resin includes repeating units represented by formula (1). (In the formula, the rings Z are the same or different and represent an aromatic hydrocarbon ring, R1 and R2 independently represent a C1-C12 hydrocarbon group optionally including a hydrogen atom, a halogen atom, and an aromatic group, Ar1 and Ar2 represent a C6-C10 aromatic group optionally having a substituent, L1 and L2 independently represent a divalent linking group, j and k independently represent an integer of 0 or more, m and n independently represent 0 or 1, and W is at least one selected from the groups represented by formulae (2) and (3).) (In the formula, X represents a divalent linking group.)

公开(公告)号：US20220146713A1

公开(公告)日：2022-05-12

申请号：US17434138

申请日：2020-02-26

申请人： TEIJIN LIMITED

发明人： Kyosuke YAMADA ,  Manabu MATSUI ,  Takatsune YANAGIDA ,  Kazuyoshi OGASAWARA ,  Kazunori NUNOME ,  Keisuke SATO ,  Tatsuya OYAMA ,  Yasuhiko TOMONARI

IPC分类号： G02B1/04 ,  G02B13/00 ,  C08L69/00

摘要： The invention provides an optical lens that can provide small-sized imaging modules. The optical lens of the invention comprises a thermoplastic resin having a refractive index (nD) and Abbe number (ν) satisfying the following mathematical formula (A): nD≤−0.02×ν+2.040  (A) (where 1.660

公开(公告)号：US20160347934A1

公开(公告)日：2016-12-01

申请号：US15116682

申请日：2015-02-19

申请人： TEIJIN LIMITED

发明人： Yasuhiko TOMONARI

IPC分类号： C08K5/5317 ,  C08J7/00 ,  C08G63/189 ,  C08K3/08

CPC分类号： C08K5/5317 ,  C08G63/189 ,  C08G2120/00 ,  C08J7/00 ,  C08J2367/02 ,  C08K3/08 ,  C08K2003/0843 ,  C08K2003/0875 ,  C08K3/02 ,  C08L67/02 ,  C08K3/32

摘要： The object of the present invention is to provide a highly crystalline polyethylene-2,6-naphthalate composition by achieving high molecular weight of PEN, wherein the polyethylene-2,6-naphthalate composition has greatly improved blow moldability and provides molded products having excellent hue, excellent weathering resistance, and additionally excellent transparency. The above-mentioned problems can be solved by a polyethylene-2,6-naphthalate composition comprising a specific phosphoric acid which is a phosphorus compound, cobalt element derived from a cobalt compound, manganese element derived from a manganese compound, and antimony element derived from an antimony compound, wherein the content of each of the elements simultaneously satisfies the following expressions (1) to (4): 10≦Co≦30 mmol %  (1) 0.50≦P/Mn≦1.28  (2) 10≦Sb≦25 mmol %  (3) 0.60≦IV≦1.50 dL/g  (4).