Polyester, molded article, and method for manufacturing a molded article
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SUMITOMO CHEM CO LTD
- Filing Date
- 2025-12-08
- Publication Date
- 2026-06-25
AI Technical Summary
【0008】 本開示によれば、良好な誘電特性と優れた成形加工性とを両立したポリエステルが提供される。また、本開示によれば、当該ポリエステルを含む成形品及びその製造方法が提供される。
Smart Images
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Abstract
Claims
1. The first monomer unit originates from the first monomer having a furan ring with two carbonyl groups bonded together, A second monomeric unit having a condensed aromatic ring, Includes, The content of the first monomer unit is 0.1 mol% or more and 40 mol% or less relative to the total amount of all monomer units. A polyester in which the content of the second monomer unit is 20 mol% or more relative to the total amount of all monomer units.
2. The polyester according to claim 1, wherein 90 mol% or more of the total monomer units are monomer units having an aromatic ring.
3. The polyester according to claim 1, further comprising a third monomer unit having a benzene ring and lacking a condensed aromatic ring and a furan ring.
4. The polyester according to claim 3, wherein the content of the third monomer unit is 10 mol% or more and 75 mol% or less relative to the total amount of all monomer units.
5. The polyester according to claim 1, wherein the temperature at which the weight loss rate is 5% is 450°C or higher.
6. A molded article comprising the polyester described in any one of claims 1 to 5.
7. A method for producing a molded article, comprising the step of molding a molding raw material containing polyester according to any one of claims 1 to 5 to obtain a molded article.
8. The manufacturing method according to claim 7, wherein the step is a step of press molding the molding raw material.