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US 2026/0217916 A1Published application
Block copolymer, process for producing block copolymer, insulating material, polyimide, and printed board
AssigneeResonac Corporation
InventorsTomoaki MAENO, Yasunori KAWABATA, Arisa HATAKEYAMA
Life of this patent
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Abstract
The disclosure relates to a block copolymer including: a polyimide block (BI) and a polyamic acid block (BA); and a structural unit (X) having a group (X) that includes at least one non-aromatic hydrocarbon group, where the total number of carbon atoms in the at least one non-aromatic hydrocarbon group is nine or more.
Claims34
A block copolymer, comprising:
- a polyimide block (BI) and a polyamic acid block (BA);
- and
- a structural unit (X) having a group (X) that includes at least one non-aromatic hydrocarbon group, where a total number of carbon atoms in the at least one non-aromatic hydrocarbon group is nine or more.
A block copolymer, comprising:
- a polyimide block (BI) and a polyamic acid block (BA);
- and
- at least one selected from the group consisting of a structural unit represented by formula (XI) below and a structural unit represented by formula (XA) below:
- where R1 and R2 each independently represent an organic group, and at least one of R1 and R2 is a group (X) that includes at least one non-aromatic hydrocarbon group, where a total number of carbon atoms in the at least one non-aromatic hydrocarbon group is nine or more;
- where R3 and R4 each independently represent an organic group, and at least one of R3 and R4 is a group (X) that includes at least one non-aromatic hydrocarbon group, where a total number of carbon atoms in the at least one non-aromatic hydrocarbon group is nine or more.
2 more elements
A block copolymer, comprising:
- a polyimide block (BI) and a polyamic acid block (BA);
- and
- a structure derived from a diamine or diisocyanate and a structure derived from a tetracarboxylic dianhydride, wherein
- at least one of the structure derived from a diamine or diisocyanate and the structure derived from a tetracarboxylic dianhydride includes a structure having a group (X) that includes at least one non-aromatic hydrocarbon group, where the total number of carbon atoms in the at least one non-aromatic hydrocarbon group is nine or more.
1 more element
A method for producing a block copolymer, comprising:
- obtaining a polyimide (PI) by using a diamine or diisocyanate and a tetracarboxylic dianhydride;
- obtaining a polyamic acid (PA) by using a diamine and a tetracarboxylic dianhydride;
- and
- obtaining a block copolymer by using the polyimide (PI) and the polyamic acid (PA), wherein
- at least one selected from the group consisting of the diamine or diisocyanate and the tetracarboxylic dianhydride, which are used to obtain the polyimide (PI), and the diamine and the tetracarboxylic dianhydride, which are used to obtain the polyamic acid (PA), includes a compound having a group (X) that includes at least one non-aromatic hydrocarbon group, where the total number of carbon atoms in the at least one non-aromatic hydrocarbon group is nine or more.
2 more elements
Dependencies are inferred from the claim text.