{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9777117","patent":{"patent_number":"US-9777117","title":"Process for the production of polyimide and polyamic ester polymers","assignee":null,"inventors":[],"filing_date":"2017-03-06T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":27,"abstract":"This disclosure relates to a process of purifying a polymer. The process includes (a) providing an organic solution containing a polyimide or polyamic ester in at least one polar, aprotic polymerization solvent; (b) adding at least one purification solvent to the organic solution to form a diluted organic solution, the at least one purification solvent is less polar than the at least one polymerization solvent and has a lower water solubility than the at least one polymerization solvent at 25° C.; (c) washing the diluted organic solution with water or an aqueous solution to obtain a washed organic solution; and (d) removing at least a portion of the at least one purification solvent in the washed organic solution to obtain a solution containing a purified polyimide or polyamic ester. This disclosure also relates to a process of preparing a film on a semiconductor substrate, as well as related purified polymer solutions, films, and articles."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Process for the production of polyimide and polyamic ester polymers","description":"This disclosure relates to a process of purifying a polymer. The process includes (a) providing an organic solution containing a polyimide or polyamic ester in at least one polar, aprotic polymerizati","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9777117","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9777117","citation_suggestion":"Patentable. \"Process for the production of polyimide and polyamic ester polymers\" (US-9777117). https://patentable.app/patents/US-9777117","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9777117","json":"https://patentable.app/api/llm-context/US-9777117","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:42:38.816Z"}