{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9815927","patent":{"patent_number":"US-9815927","title":"Copolymer, resin composition containing the copolymer, film and phase difference film","assignee":null,"inventors":[],"filing_date":"2015-10-15T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F","G02F","G02F"],"num_claims":10,"abstract":"A copolymer includes a fumaronitrile residue represented by following General Formula I and an aromatic vinyl monomer residue represented by following General Formula II:wherein, in General-Formula II, R1 is a hydrogen atom, a methyl-group or a phenyl-group, and R2 is a hydrogen atom or a substituted or unsubstituted aryl-group having 6 to 12 carbon atoms, and each of R3, R4, R5, R6 and R7 independently represents a hydrogen atom, a halogen atom, a hydroxy-group, an alkoxy-group having 1 to 4 carbon atoms, an acyloxy-group having 2 to 5 carbon atoms, a cyanomethyl-group, or an alkyl-group having 1 to 8 carbon atoms, and at least two of R2, R3 and R4 may be bonded to form a ring, and at least two of arbitrary substituents of R3, R4, R5, R6 and R7 may be bonded to form a ring."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Copolymer, resin composition containing the copolymer, film and phase difference film","description":"A copolymer includes a fumaronitrile residue represented by following General Formula I and an aromatic vinyl monomer residue represented by following General Formula II:wherein, in General-Formula II","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9815927","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-9815927","citation_suggestion":"Patentable. \"Copolymer, resin composition containing the copolymer, film and phase difference film\" (US-9815927). https://patentable.app/patents/US-9815927","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9815927","json":"https://patentable.app/api/llm-context/US-9815927","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:17:59.938Z"}