Acid anhydride compound, polyamideimide resin and film
Summary
USPTO granted Patent US12595268B2 to Korea Advanced Institute of Science and Technology (KAIST) for a novel acid anhydride compound and polyamideimide resin and film utilizing the same. The invention provides high thermal resistance, low coefficient of thermal expansion, and colorless transparency properties. The patent contains 11 claims and was filed under Application No. 18517326.
What changed
USPTO issued Patent US12595268B2 granting exclusive intellectual property rights to KAIST for an acid anhydride compound with a novel chemical structure, and polyamideimide resin and film produced therefrom. The patent claims cover the compound's use in films exhibiting high thermal resistance, low thermal expansion, and optical transparency.
For manufacturers and researchers in polymer chemistry and advanced materials, this patent establishes enforceable IP rights that may restrict competitive development of similar acid anhydride compounds for polyamideimide film applications. Parties engaged in related chemical manufacturing or film production should assess potential licensing needs or design-around considerations.
What to do next
- Monitor for updates
- Review patent claims for potential infringement concerns
Archived snapshot
Apr 7, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Acid anhydride compound, and polyamideimide resin and film using the same
Grant US12595268B2 Kind: B2 Apr 07, 2026
Assignee
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors
Sang Youl Kim, Seong Jong Kim
Abstract
Provided are an acid anhydride compound having a novel structure, and a polyamideimide resin and a polyamideimide film produced therefrom. Specifically, since the polyamideimide film according to the present invention includes a structural unit derived from the acid anhydride compound, it may have high thermal resistance and a low coefficient of thermal expansion while being colorless and transparent.
CPC Classifications
C07D 493/04 C08G 73/14
Filing Date
2023-11-22
Application No.
18517326
Claims
11
Related changes
Get daily alerts for USPTO Patent Grants - Organic Chemistry (C07D)
Daily digest delivered to your inbox.
Free. Unsubscribe anytime.
Source
About this page
Every important government, regulator, and court update from around the world. One place. Real-time. Free. Our mission
Source document text, dates, docket IDs, and authority are extracted directly from USPTO.
The summary, classification, recommended actions, deadlines, and penalty information are AI-generated from the original text and may contain errors. Always verify against the source document.
Classification
Who this affects
Taxonomy
Browse Categories
Get alerts for this source
We'll email you when USPTO Patent Grants - Organic Chemistry (C07D) publishes new changes.
Subscribed!
Optional. Filters your digest to exactly the updates that matter to you.