{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8481669","patent":{"patent_number":"US-8481669","title":"Molding material comprising polysilsesquioxane compound, sealing material, and sealed optical element","assignee":null,"inventors":[],"filing_date":"2008-06-17T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":11,"abstract":"A molding material which can produce cured products with long-lasting excellent transparency and heat resistance, a sealing material in which the molding material is used, and a sealed optical element are provided. The molding material comprises a polysilsesquioxane compound with a ladder structure having a repeating unit of the following formula (I) in the molecule as a major component.wherein R1 represents a group shown by the formula AO—(CH2)r— (wherein A indicates a protective group for a hydroxyl group and r is an integer of 1 to 10), R2 represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted (excluding substitution with OA in the above formula) alkyl group having 1 to 20 carbon atoms, or an alkenyl group having 2 to 20 carbon atoms, and l, m, and n individually represent 0 or an arbitrary integer, provided that l and n are not 0 at the same time."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Molding material comprising polysilsesquioxane compound, sealing material, and sealed optical element","description":"A molding material which can produce cured products with long-lasting excellent transparency and heat resistance, a sealing material in which the molding material is used, and a sealed optical element","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8481669","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-8481669","citation_suggestion":"Patentable. \"Molding material comprising polysilsesquioxane compound, sealing material, and sealed optical element\" (US-8481669). https://patentable.app/patents/US-8481669","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8481669","json":"https://patentable.app/api/llm-context/US-8481669","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:08:27.545Z"}