{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"modular_decomposition__chemistry_materials","arm":"ORDINARY_MAX","candidate_id":"modular_decomposition__chemistry_materials__ORDINARY_MAX","proposal_index":1,"version":0,"title":"Contract-Defined Masterbatch Modules for Recycled-Polypropylene Composite Reformulation","problem":"A glass-fiber-reinforced recycled-polypropylene compound combines a variable polymer matrix, fiber compatibilizer, durability additives, rheology aids, and pigments in one jointly managed recipe. These ingredients change for different reasons but interact in the same melt through viscosity, crystallization, dispersion, reactive groups, and thermal history. A candidate replacement for one stabilizer can therefore reopen unrelated ingredient doses and processing settings, making the formulation difficult to change or diagnose locally.","actors":["Polymer formulation chemist","Compounding process engineer","Materials characterization engineer","Stewards for matrix, reinforcement-interface, durability, processability, and appearance modules","Quality and product-specification owner","Laboratory manager and environmental-health-and-safety reviewer"],"observable_state":"After a proposed durability-additive substitution, qualification records show shifts in extrusion torque, melt-flow rate, color, dispersion, or aged mechanical retention, followed by adjustments to compatibilizer, lubricant, pigment, or processing settings. Different cross-interactions can produce the same final-property failure, and the records do not identify a bounded formulation responsibility that owns the change.","consequence":"Each substitution can reopen the complete recipe and its qualification matrix, impede parallel work, and leave failures ambiguously assigned. A locally acceptable ingredient change may also create an integrated-compound failure that appears only after compounding or aging tests.","affected_objective":"Maintain predeclared processing, mechanical, durability, and appearance acceptance windows while determining whether a durability-package substitution can be evaluated without changing unrelated formulation responsibilities.","intervention":"Represent the compound as a matrix feed plus four separately formulated and versioned concentrates: reinforcement-interface, durability, processability, and appearance. Give each module a coherent responsibility and steward. Define a shared interface contract covering permitted carrier resins, dose basis, total carrier mass, moisture and volatile limits, thermal window, melt-flow contribution, dispersion requirements, and a budget for reactive functional groups. When a durability ingredient changes, freeze the compositions and doses of the other modules, qualify the revised durability concentrate locally, and combine all modules using a fixed compounding schedule. Release a trial only through interface checks and whole-compound tests. The boundary is compositional and procedural during formulation and qualification; it does not assume that ingredients remain physically isolated after melt mixing.","structural_mapping":[{"archetype_element":"Entangled whole","domain_realization":"The single final-compound recipe and extrusion process, in which matrix variability, fiber adhesion, stabilization, flow control, and appearance are co-optimized."},{"archetype_element":"Responsibility partitioning","domain_realization":"Matrix feed owns incoming-resin condition; reinforcement-interface owns fiber wetting and compatibilization; durability owns antioxidant and ultraviolet-stabilization functions; processability owns flow and lubrication; appearance owns pigment and dispersion."},{"archetype_element":"Module boundary","domain_realization":"Each concentrate has its own formulation record, batch specification, test method, version, and change authority, while its approved dose and declared chemical contributions mark what crosses into the final compound."},{"archetype_element":"Interface contract","domain_realization":"Modules must satisfy predeclared limits for carrier compatibility, mass contribution, moisture, volatiles, thermal stability, melt-flow contribution, dispersion, dosing uncertainty, and reactive-group equivalents."},{"archetype_element":"Encapsulation","domain_realization":"A module steward may alter ingredients and preparation details inside the module while other stewards rely on its released specification; full composition and hazard information remain visible to safety and integration reviewers."},{"archetype_element":"Module steward","domain_realization":"A named technical owner controls each module, while an integration owner controls shared contracts and resolves cross-module failures."},{"archetype_element":"Integration policy","domain_realization":"A fixed feed order and compounding window, total-formulation mass balance, interface checks, and final plaque-level processing, mechanical, aging, and appearance tests determine whether the modules still form an acceptable compound."},{"archetype_element":"Compatibility check","domain_realization":"A small interaction screen tests whether a durability-module change couples materially to the reinforcement-interface module before the boundary is trusted."},{"archetype_element":"Module granularity","domain_realization":"The initial five-part division is provisional: functions are merged when recurring interactions defeat local qualification and split only when a module remains internally entangled."}],"mechanism_mapping":[{"mechanism_slug":"product_subsystem_decomposition","role":"Treat the final material formulation as a product system and its matrix, reinforcement-interface, durability, processability, and appearance responsibilities as chemical subsystems that can be formulated and tested locally.","counterfactual_removal":"Without responsibility-based partitioning, the concentrates are merely different containers for a monolithic recipe, so every substitution still requires whole-formulation reasoning."},{"mechanism_slug":"measurable_compounding_interface_contract","role":"Bound what each module can contribute to the shared melt through carrier, mass, rheology, moisture, thermal, dispersion, and reactive-group specifications.","counterfactual_removal":"Without the contract, cross-module dependencies remain hidden and separately prepared concentrates amount to arbitrary slicing rather than modular decomposition."},{"mechanism_slug":"frozen_module_change_protocol","role":"Hold unrelated module formulations and doses constant while one steward evaluates a local substitution, making change locality directly observable.","counterfactual_removal":"If other modules may be retuned during every substitution, the intervention cannot be distinguished from ordinary whole-formulation optimization."},{"mechanism_slug":"whole_compound_integration_gate","role":"Recombine the modules under a fixed process and test both shared interfaces and final material properties before accepting a trial.","counterfactual_removal":"Local module passes could conceal integration collapse, sacrificing the archetype's requirement that the decomposed parts still produce a coherent whole."}],"causal_chain":["Ingredients serving different responsibilities are initially selected, changed, and qualified inside one shared recipe.","A durability-additive substitution perturbs shared melt variables such as carrier fraction, viscosity, dispersion, reactive-group balance, or thermal history.","Those perturbations can propagate into fiber adhesion, processability, appearance, and aged properties, reopening decisions across the formulation.","Responsibility-based concentrates convert the recipe into bounded units aligned with distinct functions and change reasons.","The interface contract exposes and limits each unit's contributions to the shared chemical and processing environment.","A frozen-module protocol permits the durability steward to change only the durability concentrate and screen it against local and interface requirements.","A fixed compounding procedure and whole-compound gate test whether the independently handled units still compose successfully.","If the substitution passes with other modules frozen, the change path is locally manageable; if recurring cross-interactions force other modules to change, the proposed boundary is rejected or redrawn."],"baseline":"Use the incumbent monolithic formulation workflow: all additives are specified at final-compound level, a candidate stabilizer is introduced directly, failures trigger unrestricted recipe or process retuning, and qualification relies primarily on final-compound tests. Experimental comparisons hold the recycled-resin lot, glass lot, equipment, nominal composition, and predeclared acceptance windows constant.","nearest_rivals":["Mixture-process design of experiments on the monolithic formulation can model and optimize ingredient interactions without assuming low coupling; it is preferable if interactions are dense or stable enough to model globally.","A supplier-formulated all-in-one additive package can internalize compatibility work and reduce local decisions, but replacement of the package still changes a bundled set of responsibilities.","Microencapsulation or coated additives can suppress particular unwanted reactions by physical separation or controlled release; that is a closer solution if reactive contact, rather than formulation tractability, is the dominant problem.","Sorting, blending, or preconditioning the recycled-polypropylene feed can reduce input variability at its source; it is preferable if matrix-lot variation, rather than responsibility entanglement, explains the reformulation cascade."],"remaining_contrastive_claim":"The candidate's sole contrastive claim is that a predeclared durability-package substitution can be qualified by changing the durability concentrate alone because its cross-boundary chemical contributions are made explicit and bounded, while whole-compound testing preserves system coherence. Unlike monolithic design of experiments, this predicts a localized change path; unlike encapsulation, it does not predict persistent physical isolation in the final melt. The distinguishing observation is successful frozen-module substitution, not superior endpoint material performance.","authority_safety":{"decision_authority":"The materials R&D owner may authorize the experimental design; the laboratory manager and environmental-health-and-safety reviewer must authorize substances and bench operations. Only the quality and product-specification owner may authorize a released-formulation or production change.","authorized_first_step":"Conduct only the preregistered bench-scale dependency screen using already approved materials, equipment, operating limits, ventilation, personal protective equipment, and waste procedures.","excluded_actions":["Production-line or customer-use deployment","Changes to a released recipe, product specification, or supplier qualification","Use of unreviewed powders, reactive modifiers, or operating conditions outside existing laboratory procedures","Waiving whole-compound tests because individual modules passed","Claims of safety, regulatory compliance, recyclability, novelty, or commercial performance"],"halt_rollback":"Stop the affected run for any approved torque, pressure, temperature, dust-containment, or off-gassing limit excursion, or for an undeclared interface-contract breach. Follow the laboratory shutdown procedure, quarantine trial material, document the event, and restore the frozen incumbent settings. A failed whole-compound gate ends that experimental branch rather than prompting unplanned cross-module retuning."},"negative_tests":{"strongest_counterevidence":"A controlled interaction screen finds recurring durability-by-compatibilizer, durability-by-pigment, or durability-by-process effects that cross predeclared practical thresholds, while the proposed interface measurements do not predict those failures. That would indicate that the shared melt is intrinsically too coupled for these boundaries.","problem_falsifier":"The problem is absent if controlled substitutions or existing change records show that durability ingredients can already be changed and diagnosed without adjustments or broad review elsewhere, or if a single input-variable correction explains the apparent cascade.","intervention_falsifier":"Reject the proposed boundary set if the modular-equivalent incumbent cannot reproduce the incumbent compound within predeclared repeatability and acceptance limits, or if the candidate durability substitution passes its module and interface checks but still requires a composition or dose change in another module to pass the whole-compound gate. Also reject it if the matched monolithic workflow localizes the same change without additional cross-formulation decisions.","risks":["Multifunctional additives may not fit one coherent responsibility, producing misleading ownership boundaries.","Unmeasured reactions in the shared melt may defeat the declared interface contract and create false confidence.","Accumulated carrier resin from several concentrates may alter composition, crystallization, or rheology.","Separate concentrate preparation can add thermal history, moisture exposure, contamination opportunities, and handling work.","Module tests may pass while final mechanical or aging behavior fails during integration.","Additional specifications, stewards, and handoffs may cost more coordination than the local reasoning they enable.","Bench-scale dispersion and residence time may not represent later equipment, so laboratory success must not be treated as scale-up evidence.","Heated polymer, fibers, powders, and decomposition products retain their ordinary exposure and process hazards regardless of modular labeling."]},"next_evidence_step":"Run one preregistered screen with one characterized recycled-polypropylene lot, one glass lot, one bench extruder, and no more than ten small batches: duplicate monolithic-incumbent controls, duplicate modular-equivalent incumbent controls, and a two-level durability package by three-level reinforcement-interface matrix with processability and appearance modules frozen. Before seeing results, set module, interface, and whole-compound gates and an interaction threshold based on existing requirements and control repeatability. Record approved process variables plus melt flow, moisture or volatiles, dispersion, color, tensile and impact behavior, and post-aging retention. The step ends with acceptance, rejection, or redrawing of this boundary set; it does not authorize production or claims.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"Not assessed because runtime isolation prohibited inspection of prior proposals; no diversity claim is made.","revision_record":{"parent_version":null,"progress_targets_addressed":["Created an initial complete candidate with a concrete materials problem, observable state, causal mappings, operational mechanism, baseline, serious rivals, safeguards, falsifiers, and bounded evidence step."],"conceptual_changes":["Instantiated modular decomposition as responsibility-based masterbatch architecture for a recycled-polypropylene composite.","Defined module boundaries as compositional and procedural rather than claiming physical isolation after melt blending.","Made successful reintegration and rejection of poorly cut boundaries central to the proposal."],"operational_changes":["Specified five responsibilities, measurable interface dimensions, named stewardship, a frozen-module substitution rule, and a whole-compound integration gate.","Bounded the first study to one material lot, one bench extruder, and at most ten small batches."],"evidence_changes":["No empirical or prior-art evidence was introduced; only a prospective dependency screen was specified."],"claim_changes":["Restricted the claim to testable localization of one durability-package substitution.","Excluded claims about novelty, prevalence, demand, effect size, scale-up, safety, regulatory compliance, and superior final performance."]}}