Rnd Formulations interview prep.

Behavioural questions to expect

1. Walk me through your background + formulation experience.
2. Tell me about a formulation or materials project you've worked on.
3. Why industrial R&D vs academia, pharma, or consumer formulations?
4. Why this chemistry or application area - polymers / coatings / adhesives / specialty / advanced materials?
5. Why the firm?
6. What's your read on our chemistry portfolio + recent R&D activity?
7. Tell me what you understand about our R&D capability + innovation culture.
8. Walk me through a new formulation you developed from spec to manufacturing handover.

Technical concepts to master

• Structure-property + formulation

  Structure-property relationships · Ingredient functionality matrix · Polymer architecture · Cure + crosslinking systems · Fillers + composites + nanomaterials

• Design of Experiments (DoE) + statistical design

  Factorial + fractional factorial · Response surface methodology (RSM) · Mixture designs (Scheffe + extreme vertices) · DoE software + analysis · Statistical thinking + validation

• Scale-up + tech transfer

  Bench-to-pilot-to-plant progression · Mixing + heat + mass transfer scale-up · Golden batch + tech transfer package · Stage-gate innovation funnel · Cost-in-use + customer trial economics

• IP + freedom-to-operate + regulatory discipline

  Patent landscape + claim reading · Freedom-to-operate (FTO) · Trade secret + know-how · REACH + TSCA + GHS day-one discipline · Sustainability + LCA + EPDs

Practical drills

• A coatings customer needs a waterborne, low-VOC industrial topcoat - dry hard in 30 min at 25 C, 90% gloss, MEK double-rub > 200, pass 1000 h salt spray, cost-in-use parity with the incumbent solventborne. Walk through your 6-month formulation plan - hypothesis, DoE, characterisation, scale-up, and a sanity-check on cost-in-use.
• You need to optimise an epoxy adhesive across five factors - resin type (2 levels), curing agent (3 levels), accelerator (continuous, 0-2%), filler load (continuous, 0-30%), and cure temperature (continuous, 60-120 C). Three responses - lap shear, Tg, pot life. Walk through your DoE strategy.
• Your bench polymer synthesis (1 L flask, MW = 50 kDa, PDI = 1.8) needs to scale to a 5 m^3 reactor for first commercial campaign. Walk through scale-up risks + your pilot + transfer plan.

Smart-question anchors

• Chemistry portfolio + R&D pipeline - product families, recent patents, white-space view
• Innovation funnel + stage-gate - documented or implicit, kill discipline
• R&D capability - central + application labs, pilot units, characterisation infrastructure
• Customer + end-market mix - automotive, electronics, construction, packaging, energy
• IP posture + FTO discipline - patent activity, recent disputes, licensing strategy

Sourced from

American Chemical Society (ACS) + Polymer Science + Industrial & Engineering Chemistry Research · ECHA REACH + US EPA TSCA + UN GHS regulatory references · ASTM + ISO characterisation + materials test standards · Stage-Gate (Robert G. Cooper) + AIChE + AACE capital + innovation methodology · Design of Experiments references - Box, Hunter & Hunter + Montgomery + JMP + Minitab documentation