Scientific Director

Profile

Dr. Juan Segurola is the founder and Scientific Director of 3Dresyns®, the commercial brand of Resyner Technologies S.L. He holds a BS in Chemistry, specialized in Polymer Science, from the University of the Basque Country (Spain), and a PhD in Photochemistry of Polymers from Manchester Metropolitan University (MMU, UK).

Scientific career fields

Materials science, polymer chemistry and photochemistry. Synthesis, analysis, design and production of synthetic and bio-based resin systems in water-based, solvent-based and 100% solids photopolymer formats for 2D and 3D printing and additive manufacturing.

Academic institutions

• University of the Basque Country (Spain)
• Manchester Metropolitan University (MMU) (UK)

Doctoral supervisor

Professor Norman Allen, Manchester Metropolitan University (MMU).

Academic background

Dr. Segurola graduated in Chemistry in 1994 from the University of the Basque Country, with a five-year degree specialized in Polymer Science. He completed his final undergraduate year at Manchester Metropolitan University on an Erasmus scholarship, where he conducted research on the synthesis of novel anthraquinone and benzophenone photoinitiator derivatives under the supervision of Professor Norman Allen.

He obtained his PhD in 1999 with the thesis "Photochemical characteristics and design of synergistic combinations of photoinitiators for UV curable inks and coatings", developed within a collaborative industrial research program between Swale Process (today part of Sun Chemical) and Manchester Metropolitan University.

Professional experience

2017–Present — Founder and Scientific Director, 3Dresyns® / Resyner Technologies S.L.

Founder and sole owner of Resyner Technologies S.L. and of its commercial brand 3Dresyns®, a specialized laboratory dedicated to the design and development of advanced photopolymer material systems for additive manufacturing. The laboratory operates with full ownership of its intellectual property and complete autonomy over its research and commercial direction.

Selected references: material features, product portfolio, technical programs, innovations and achievements.

2004–2017 — Technical Sales Manager, Kromachem (Spain)

Technical sales management for the coatings and inks industry, covering waxes, micronized polymers, texturing agents, additives, resins, pigment pastes, defoamers and leveling agents.

1999–Present — Independent consultant, photopolymer and resin technologies

Polymer consulting services to 2D and 3D resin companies internationally in eco-friendly and high-performance polymers and resin systems for photo-curable, water-based, solvent-based and 100% solids coatings, inks and 3D resin systems. From 2002 to 2004, secretary of Expert Solutions International Ltd (UV printing inks and coatings consultancy). Since 2017, consulting activity is integrated within 3Dresyns.

1998–2004 — European Technical Service & Applications Manager (EMEA), BFGoodrich (later Noveon, today Lubrizol)

European Technical Service & Applications Manager for Graphic Arts, Specialty Papers and Nonwovens at the European mother plant in Barcelona, with responsibility across Europe, the Middle East and Africa.

• Technical service, applications development and training for the EMEA sales network, distributors and customers.
• Design, research and development of solvent and water-based inks, over print varnishes (OPVs) for food packaging, corrugated, folding cartons, film printing and metallization, and water-based paper coatings, paper saturation and nonwoven systems.
• Strategic identification of new markets and business opportunities for solvent-based and water-based systems.
• Authorship of technical and scientific documentation: technical data sheets, brochures, comparative evaluations and industrial publications.

1996–1998 — R&D Scientist, Swale Process (today part of Sun Chemical)

Industrial R&D position held in parallel with the doctoral program at Manchester Metropolitan University, within the collaborative industrial research framework between Swale Process and MMU.

• Reformulation of UV flexographic inks, UV offset lithographic inks and UV over print varnishes.
• Development of eutectic liquid blends of photoinitiators and wetting agents through mixture and factorial design, replacing a slower and more expensive predecessor process and reducing both production time and raw material cost by approximately 15% across UV paste and liquid inks.
• Industrial supervisor of two Erasmus research projects on UV radiation curing systems in collaboration with Professor Norman Allen at Manchester Metropolitan University.

1995–1996 — Research Scientist and Project Coordinator, CIDEMCO (today Tecnalia)

• Coordinator and researcher of European Commission Craft EU-RAM projects:
• URCURE — UV-curable water-based wood coatings (synthesis and analytical characterization).
• SERU — UV sealants based on silicone chemistry.

Academic record

• 1996–1999: PhD in Photochemistry of Polymers, Manchester Metropolitan University (collaborative industrial program with Swale Process, today part of Sun Chemical, supervised by Professor Norman Allen).
• 1994–1995: ISO 9000 Quality Assurance Management course, Industrial Engineering Schools of Navarra, Guipuzcoa and Vizcaya (Spain).
• 1989–1994: BS in Chemistry, five-year degree specialized in Polymer Science, Faculty of Chemistry, University of the Basque Country (Spain).
• 1993–1994: Erasmus scholarship at Manchester Metropolitan University: final-year academic course and Honours research project with Professor Norman Allen on the synthesis of new anthraquinone and benzophenone photoinitiator derivatives.

Selected scientific publications

Approximately twenty peer-reviewed publications in polymer science and photopolymer systems. Subsequent industrial research has been retained as proprietary know-how, both during prior employments and within 3Dresyns, in line with standard practice for protecting trade secrets and proprietary technologies.

PhD and Swale Process research

1. Segurola, J., Allen, N.S., Edge, M., Roberts, I. "Photochemistry and photoinduced chemical crosslinking activity of acrylated prepolymers by several commercial type I far UV photoinitiators". Polymer Degradation and Stability 65(1) (1999) 153–160.
   DOI: 10.1016/S0141-3910(99)00003-8
   URL: https://www.sciencedirect.com/science/article/abs/pii/S0141391099000038
2. Segurola, J., Allen, N.S., Edge, M., McMahon, A., Wilson, S. "Photoyellowing and discolouration of UV cured acrylated clear coatings systems: influence of PI type". Polymer Degradation and Stability 64(1) (1999) 39–48.
   DOI: 10.1016/S0141-3910(98)00169-4
   URL: https://www.sciencedirect.com/science/article/abs/pii/S0141391098001694
3. Segurola, J., Allen, N.S., Edge, M., Parrondo, A., Roberts, I. "Photochemistry and photoinduced chemical crosslinking activity of several type II commercial photoinitiators in acrylated prepolymers". Journal of Photochemistry and Photobiology A: Chemistry 122(2) (1999) 115–125.
   DOI: 10.1016/S1010-6030(99)00020-9
   URL: https://www.sciencedirect.com/science/article/abs/pii/S1010603099000209
4. Allen, N.S., Segurola, J., Edge, M., McMahon, A., Roberts, I. "A comparative kinetic study of UV-curable resins. The relationship between structure and rheology". Journal of the Oil & Colour Chemists' Association (JOCCA — Surface Coatings International) 82(6) (1999) 285–292.
   DOI: 10.1007/BF02720124
   URL: https://link.springer.com/article/10.1007/BF02720124
5. Allen, N.S., Segurola, J., Edge, M., Santamari, E., McMahon, A. "A comparative kinetic study of commercial photoinitiators for UV/visible curable acrylate clear coatings". Journal of the Oil & Colour Chemists' Association (JOCCA — Surface Coatings International) 82(2) (1999) 67–76.
   DOI: 10.1007/BF02692626
   URL: https://link.springer.com/article/10.1007/BF02692626
6. Segurola, J., Allen, N.S., Edge, M., McMahon, A., Roberts, I. "Comparative study of the relationship between structure and rheology properties of UV-curable reactive diluent monomers". PPCJ (February 1999) 32–38.
   Sin DOI — revista técnica de la industria, no indexada en Crossref.
7. Segurola, J., Allen, N.S., Edge, M., McMahon, A., Roberts, I. "Inks by design — a study in UV monomer kinetics". European Ink Maker PPCJ (June 1999) 18–21.
   Sin DOI — revista técnica, no indexada en Crossref.
   URL repositorio: https://research.manchester.ac.uk/en/publications/inks-by-design-a-study-in-uv-monomer-kinetics
8. Segurola, J., Allen, N.S., Edge, M., McMahon, A. "Design of eutectic photoinitiator blends for UV/visible curable acrylated printing inks and coatings". Progress in Organic Coatings 37(1–2) (1999) 23–37.
   DOI: 10.1016/S0300-9440(99)00052-1
   URL: https://doi.org/10.1016/S0300-9440(99)00052-1
9. Segurola, J., Allen, N.S., Edge, M., Parrondo, A., Roberts, I. "Photocuring activity of several commercial near UV activated photoinitiators in clear and pigmented systems". Journal of Coatings Technology Vol. 71, No. 894 (July 1999) 61–67.
   DOI: 10.1007/BF02698372
   URL: https://link.springer.com/article/10.1007/BF02698372

Industrial research and applied polymer science

1. Segurola, J. "A study of the effect of several extenders on the properties of white water-based corrugated inks". Surface Coatings International Part A (2004).
   Sin DOI fiable encontrado en Crossref/Springer/repositorios académicos.
2. Segurola, J. "A study of the effect of several extenders on the colour properties of water-based corrugated flexographic inks: red inks based on Pigment Red 49:2". Surface Coatings International Part A (2004).
   Sin DOI fiable encontrado.

Recent additive manufacturing and biofabrication research

1. Garrett, A., Avegnon, K.L.M., Delbreilh, L., Segurola, J., Delpouve, N., Sealy, M.P. "Enzymatic degradation and ageing of additively manufactured soy-based scaffolds for cell-cultured meat". CIRP Annals 72(1) (2023) 149–152.
   DOI: 10.1016/j.cirp.2023.04.020
   URL: https://www.sciencedirect.com/science/article/abs/pii/S0007850623000616
2. Sardana, et al. "Masked stereolithography-based additive manufacturing of radiopaque biocomposites for enhanced imaging in potential bio-implant applications". Journal of Reinforced Plastics and Composites (2026).
   DOI: 10.1177/07316844261448744

3Dresyns innovation record

Since 2017, 3Dresyns has developed new cationic, anionic and radical photopolymerisation chemistries, with over 160 independent references — peer-reviewed scientific publications, market reports, technical reviews and external mentions — validating its materials. The complete reference list is maintained in Publications about 3Dresyns. See also 3Dresyns innovations and achievements.

Conferences, training and consulting

• Speaker at Radcure Coatings and Inks (PRA), 22–23 June 1998: "A comparative kinetic study of commercial photoinitiators for UV/visible curable systems".
• Speaker at the Spanish Association of Paint Technicians (AETEPA) and the Official Colleges of Chemists of Barcelona, Madrid and Valencia.
• Extensive technical training and consulting activity to B2B clients, integrated within 3Dresyns since 2017.

Selected research collaborations

3Dresyns supplies materials and conducts technical programs for over 3,000 companies and more than 400 universities and research institutes across 50 countries. The list of publishable collaborators and end users includes institutions such as NASA, Los Alamos National Laboratory, MIT, Harvard University, ESRF and DESY.

Confidential client work is conducted under non-disclosure agreements and is not disclosed publicly, in line with 3Dresyns' policy on protecting trade secret technology and client confidentiality.

Awards

• President's Award, BFGoodrich (today Lubrizol) — Best Technical Service Manager in EMEA, 2001.

Contact

info@3dresyns.com