{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","research_id":"eoa_inverse_innovation_exp12_light_screen_20260805","cell_id":"activation_decay_measurement__chemistry_materials","search_lanes":{"direct_problem_and_intervention":{"queries":["vitrimer composite repair heating pressure temperature time bond exchange cooling thermocouple","vitrimer composite healing induction heating clamp repair CFRP primary research","vitrimer repair \"cooling\" \"thermocouple\" clamp delay","vitrimer welding \"transfer time\" pressure heating"],"source_ids":["SRC1","SRC2"],"no_result_note":"No retained source disclosed the complete sequence of heater removal, measured post-pulse decay, delayed clamp placement, a mechanically calibrated witness threshold, and reheat-on-expiry. This bounded phrase and concept miss is not evidence of novelty."},"synonyms_and_historical_terms":{"queries":["thermoset vitrimer welding pressure temperature contact time repair composite","covalent adaptable network repair residual temperature clamp after heating","topology freezing transition temperature vitrimer optical probe","self-healing vitrimer composite heating pressure repair interface"],"source_ids":["SRC1","SRC2","SRC3"],"no_result_note":null},"products_practices_and_standards":{"queries":["reversible thermochromic temperature indicator label first party product","thermochromic witness heat welding process temperature indicator repair","temperature indicating label polymer welding process thermochromic","ASTM F2620 heater removal fusion pressure interfacial temperature official"],"source_ids":["SRC2","SRC4"],"no_result_note":null},"component_combination":{"queries":["vitrimer repair temperature indicator thermochromic witness","patent thermochromic indicator welding joint temperature clamp transfer","thermochromic indicator composite repair heating bondline","vitrimer composite repair resistance welding temperature pressure"],"source_ids":["SRC2","SRC3","SRC4"],"no_result_note":"The search found each major component in adjacent work, including vitrimer welding, optical detection of a vitrimer transition, and thermochromic weld-window indication, but not their complete proposed sequential-repair combination. This does not establish novelty."}},"sources":[{"source_id":"SRC1","title":"Multiple welding of long fiber epoxy vitrimer composites","publisher":"Royal Society of Chemistry, Soft Matter","url":"https://pubs.rsc.org/en/content/articlelanding/2016/sm/c6sm00257a/unauth","source_type":"PRIMARY_RESEARCH","claims_supported":["Long-fiber epoxy vitrimer composites containing more than 50 vol% reinforcement can develop substantial interfacial bond strength and be welded repeatedly.","Exchange reactions promote surface conformity and chemical bonding across the joint, supporting temperature-activated vitrimer joining as an established research practice."]},{"source_id":"SRC2","title":"Resistance Welding of Carbon Fiber Reinforced Vitrimer Composites","publisher":"MDPI, Journal of Composites Science","url":"https://www.mdpi.com/2504-477X/8/12/498","source_type":"PRIMARY_RESEARCH","claims_supported":["Localized resistance heating, thermocouples, controlled pressure, lap-shear testing, repeated break-and-reweld cycles, and repair implications have already been demonstrated for carbon-fiber vitrimer composites.","The reported process applied pressure before energization and maintained it throughout heating and at least five minutes of cooling; it therefore represents the continuous or in-clamp-heating rival rather than the proposed sequential transfer process.","The study used a manufacturer-specified bonding range of 130–180 degrees Celsius and found strong joints at 30 W for 450 seconds, showing that temperature and dwell materially constrain joining.","Extended heating near vitrimer shape-change temperatures creates a documented process-safety and dimensional-control concern."]},{"source_id":"SRC3","title":"Detecting topology freezing transition temperature of vitrimers by AIE luminogens","publisher":"Springer Nature, Nature Communications","url":"https://www.nature.com/articles/s41467-019-11144-6","source_type":"PRIMARY_RESEARCH","claims_supported":["A temperature-responsive optical probe incorporated into or swollen into a vitrimer can reveal a transition associated with network mobility and exchange kinetics.","For the tested epoxy vitrimer, fluorescence was reversible across temperature cycles and identified a broad transition range rather than a universally sharp temperature.","The work shows that optical material-state indication for vitrimers predates the proposal, while also warning that experimentally inferred transition values depend on measurement method and conditions."]},{"source_id":"SRC4","title":"Pro-Weld Visual Welding Temperature Indicator Technical Bulletin 24-02","publisher":"Sika Corporation","url":"https://usa.sika.com/dam/dms/us01/r/pro-weld-indicator.pdf","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial PVC-roofing practice already uses thermochromic ink for real-time visual feedback that temperature and welding speed fall within a window correlated with good welds.","Sika requires welding trials and peel tests and states that the indicator does not replace established seam probing or cross-section tests.","Ambient temperature, wind, applied wheel pressure, power fluctuations, premature color change, and color return can affect indication or weld quality, supporting calibration and contextual limits."]}],"problem_evidence":{"status":"PARTLY_SUPPORTED","finding":"The underlying problem is visible: vitrimer joining depends on thermally activated exchange and interface formation, localized vitrimer welding is experimentally established, and prior work commonly maintains pressure throughout heating and cooling. Temperature-responsive optical state detection is also feasible. However, the retained sources do not directly document failure caused by a field technician removing a heater and transferring a separate clamp after variable cooling; prevalence and practical severity of that exact sequential-transfer problem remain unverified.","source_ids":["SRC1","SRC2","SRC3"]},"closest_prior_art":[{"name":"Resistance welding of carbon-fiber-reinforced vitrimer composites","source_ids":["SRC2"],"overlap":"Uses localized bond-line heating, thermocouple measurements, controlled consolidation pressure, mechanical lap-shear outcomes, and repeated repair of vitrimer composite joints.","remaining_difference":"Heating and pressure overlap, and pressure remains applied during cooling. It does not measure activation decay after heater removal, compare witness state with a fixed transfer timer, or reheat a joint classified as expired."},{"name":"AIE-luminogen detection of vitrimer topology freezing transition","source_ids":["SRC3"],"overlap":"Uses a reversible optical response to expose a temperature-dependent vitrimer network state related to exchange kinetics.","remaining_difference":"It characterizes intrinsic transition behavior in prepared specimens, not a removable field witness tied to bond-line cooling and mechanically validated repair acceptance after a transfer delay."},{"name":"Sika Pro-Weld visual welding temperature indicator","source_ids":["SRC4"],"overlap":"Uses thermochromic indication of a welding-temperature window, requires empirical weld trials, observes color return, and links the indication to destructive seam-quality checks.","remaining_difference":"It concerns PVC membrane hot-air welding with pressure during the welding pass, not vitrimer bond exchange, post-heater decay before separate clamping, geometry-specific coupon thresholds, or reheat-on-expiry."},{"name":"Multiple welding of long-fiber epoxy vitrimer composites","source_ids":["SRC1"],"overlap":"Establishes repeatable heat-enabled welding and mechanical bond formation in highly reinforced epoxy-vitrimer composites.","remaining_difference":"It does not disclose individual-joint post-pulse state witnessing, delayed consolidation schedules, timer comparison, or an expiry-and-refresh rule."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"For a sequential portable process in which localized heating and consolidation cannot overlap, a bond-line-coupled temperature or reversible-color state threshold calibrated against matched mechanical coupons predicts whether the joint remains exchange-effective better than a fixed elapsed-time rule across controlled cooling variations, and one bounded reheat restores both classification and outcome after expiry. The claim excludes continuous or in-clamp heating, generic vitrimer weldability, generic transition sensing, and generic thermochromic weld indicators.","contrastive_claim_falsifier":"In the preregistered coupon matrix, the claim fails if delay produces no deterioration after peak temperature, total thermal dose, preparation, and pressure are controlled; if witness-based classification does not outperform the fixed-timer baseline on the predeclared repair criterion; if nominally matched witness states yield unacceptable outcome variability; or if reheating expired coupons does not restore the fresh-clamp response.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered the proposal directly, covalent-adaptable-network and topology-freezing terminology, vitrimer welding and repair practices, thermochromic products, standards-adjacent heat-fusion terminology, and combinations of sensing, heating, pressure, delay, and repair. Exactly four opened direct sources from four publisher contexts were retained, including three primary studies and one first-party technical bulletin.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"Primary studies support temperature-activated vitrimer welding, temperature-dependent network mobility, and the established practice of maintaining pressure during heating and cooling. The exact field-transfer failure is not directly observed, so the evidence is appropriately only partly supported.","source_ids":["SRC1","SRC2","SRC3"]},"distinct_testable_claim":{"status":"PASS","rationale":"The remaining claim is narrower than the adjacent art and has explicit comparators and failure conditions: witness state versus fixed time under variable cooling, plus fresh, expired, and reheated outcomes. None of the retained sources discloses that complete testable combination.","source_ids":["SRC2","SRC3","SRC4"]},"bounded_next_test":{"status":"PASS","rationale":"The proposed 36-coupon, two-geometry study is finite, nonstructural, replicated, and predeclares thermal, pressure, mechanical, and rejection criteria. Thermocouple-equipped lap-joint testing is demonstrated in SRC2, while SRC4 illustrates the appropriate requirement to validate a visual thermal indicator against destructive weld testing rather than treating color alone as proof.","source_ids":["SRC2","SRC4"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"No obvious stop blocks the guarded benchtop study. The named laboratory lead has decision authority, production and structural repairs are excluded, and the plan includes temperature, electrical, pressure, ventilation, de-energization, and quarantine limits. Shape-change near bonding temperatures and indicator limitations require controls but do not preclude coupon testing.","source_ids":["SRC2","SRC4"]}},"screen_survival":true,"world_novelty_boundary":"This bounded public-web screen establishes only coarse researchability and adjacent prior art. It cannot establish world novelty, patentability, freedom to operate, market size, expert acceptance, prevalence, field qualification, structural-repair authorization, or realized value."}