Back to results
US 11,505,651 B2Granted
Polymer, composition, molded article, cured product and laminate
AssigneeJsr Corporation
InventorsRyouyuu Hifumi, Toshiaki Kadota, Nobuyuki Miyaki, Shintarou Fujitomi, Yasutaka Yoshida, Ryouji Tatara
Life of this patent
Estimating the term…
Abstract
A novel polymer having high glass transition temperature and an excellent balance between heat resistance, high refractive index and mechanical properties, and a composition and molded article containing the polymer are provided. The polymer according to the invention has a first structural unit represented by at least one of formulae (1-1), (1-2) and (1-3) below and a second structural unit having either a secondary amino structure or a tertiary amino structure at two or more terminals.
Claims3
A polymer comprising:
- a structural unit represented by at least one of formulae (d), (e) and (f) below
- wherein in formulae (d) to (f), R1 is each independently a halogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms, a nitro group, a cyano group, any of primary to tertiary amino groups or a salt of any of primary to tertiary amino groups;
- n is each independently an integer of 0 to 2;
- when n is 2, two or more R1 may be the same or different and may be joined together in any combination to form a part of a cyclic structure;
- wherein R2 and R3 are respectively and independently a halogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms, a nitro group or a cyano group;
- e and f are respectively and independently an integer of 0 to 2;
- a and b are respectively and independently an integer of 0 to 8;
- when a is 2 or more, two or more R2 may be the same or different and may be joined together in any combination to form a part of a cyclic structure;
- when b is 2 or more, two or more R3 may be the same or different and may be joined together in any combination to form a part of a cyclic structure;
- Z1 to Z4 are respectively and independently —O— or —S—;
- R5 and R6 are respectively and independently a methylene group or an alkylene group having 2 to 4 carbon atoms;
- v is 0;
- w is 0;
- L is a bivalent group represented by formula (L-1) or (L-2) below;
- y is 1;
- wherein in formulae (L-1) and (L-2), A is each independently —C(O)—, —SO— or —SO2—;
- B is each independently —O—, —S— or —N(R8)—;
- R8 is a hydrogen atom, a halogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms or a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms;
- R7 is each independently a halogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms, a monovalent halogenated hydrocarbon group having 1 to 20 carbon atoms, a nitro group or a cyano group, 1 is each independently an integer of 0 to 2;
- s is each independently an integer of 0 to 8;
- when s is 2 or more, two or more R7 may be the same or different and may be joined together in any combination to form a part of a cyclic structure;
- and “*” indicates a bond.
19 more elements
Dependencies are inferred from the claim text.