Nanocellular Expanded Polymer Beads, Method Of Manufacture And Uses - EP4255973

The patent EP4255973 was granted to Cellmat SL on Oct 30, 2024. The application was originally filed on Dec 1, 2021 under application number EP21830618A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4255973

CELLMAT SL
Application Number
EP21830618A
Filing Date
Dec 1, 2021
Status
Granted And Under Opposition
Sep 27, 2024
Grant Date
Oct 30, 2024
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBBJul 29, 2025-ADMISSIBLE

Patent Citations (14) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
DESCRIPTIONUS2681321
DESCRIPTIONUS4379859
DESCRIPTIONUS5703135
DESCRIPTIONUS6315931
INTERNATIONAL-SEARCH-REPORTEP3670586
INTERNATIONAL-SEARCH-REPORTUS2015203647
OPPOSITIONDE102013223391
OPPOSITIONEP3670586
OPPOSITIONUS2012225272
OPPOSITIONUS4379859
OPPOSITIONUS6315931
OPPOSITIONWO2015071463
OPPOSITIONWO2022117642
OTHERDE102013223391

Non-Patent Literature (NPL) Citations (62) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
DESCRIPTION- BERNARDO, V.MARTIN-DE LEON, J.LAGUNA-GUTIERREZ, E.CATELANI, T.PINTO, J.ATHANASSIOU, A.RODRIGUEZ-PEREZ, M.A., "Understanding the role of MAM molecular weight in the production of PMMA/MAM nanocellular polymers", Polymer (Guildf), (20180000), vol. 153, pages 262 - 270-
DESCRIPTION- BUREAU, M.N.KUMAR, V., "Fracture toughness of high density polycarbonate microcellular foams", J. Cell. Plast., (20060000), vol. 42, pages 229 - 240-
DESCRIPTION- COSTEUX, S., "C02 -Blown Nanocellular Foams", J. Appl. Polym. Sci., (20150000), vol. 132-
DESCRIPTION- DANIEL KLEMPNERKURT C, Frisch Handbook of Polymeric Foams and Foam Technology, Rapra Technology Limited, (20040000), vol. 31, page 11201-
DESCRIPTION- HOSSIENY, N.AMELI, A.PARK, C.B., "Characterization of expanded polypropylene bead foams with modified steam-chest molding", Ind. Eng. Chem. Res., (20130000), vol. 52, pages 8236 - 8247-
DESCRIPTION- J. PINTOE. SOLORZANOM.A. RODRIGUEZ-PEREZJA DE SAJA, "Characterization of the cellular structure based on user-interactive image analysis procedures", Journal of Cellular Plastics, (20130000), vol. 49, pages 555 - 575-
DESCRIPTION- JUNTUNEN, R.P.KUMAR, V.WELLER, J.E.BEZUBIC, WP, "Impact strength of high density microcellular polyvinyl chloride) foams", J. Vinyl Addit. Technol., (20000000), vol. 6, pages 93 - 99-
DESCRIPTION- KUMAR, V.SUH, N.P., "A process for making microcellular thermoplastic parts", Polym. Eng. Sci., (19900000), vol. 30, pages 1323 - 1329-
DESCRIPTION- KUMAR, V.VANDERWEL, M.WELLER, J.SEELER, K.A., "Experimental Characterization of the Tensile Behavior of Microcellular Polycarbonate Foams", J. Eng. Mater. Technol., (19940000), vol. 116, page 439-
DESCRIPTION- MARTIN-DE LEON, J.BERNARDO, V.RODRIGUEZ-PEREZ, M.A., "Low density nanocellular polymers based on PMMA produced by gas dissolution foaming: Fabrication and cellular structure characterization", Polymers (Basel)., (20160000), vol. 8-
DESCRIPTION- NOFAR, M.AMELI, A.PARK, C.B., "A novel technology to manufacture biodegradable polylactide bead foam products", Mater. Des., (20150000), vol. 83, pages 413 - 42-
DESCRIPTION- NOTARIO, B.PINTO, J.RODRIGUEZ-PEREZ, M.A., "Nanoporous polymeric materials: A new class of materials with enhanced properties", Prog. Mater. Sci., (20160000), pages 78 - 79,93-139-
DESCRIPTION- NOTARIO, B.PINTO, J.RODRIGUEZ-PEREZ, M.A., "Towards a new generation of polymeric foams: PMMA nanoceiiuiar foams with enhanced physical properties", Polymer (Guildf), (20150000), vol. 63, pages 116 - 126-
DESCRIPTION- PINTO, J.; DUMON, M.; PEDROS, M.; REGLERO, J.; RODRIGUEZ-PEREZ, M.A., "C02 foaming of PMMA assisted by block copolymer nanostructuration", Chem. Eng. J., (20140000), vol. 243, pages 428 - 435-
DESCRIPTION- PINTO, J.REGLERO-RUIZ, J.A.DUMON, M.RODRIGUEZ-PEREZ, M.A., "Temperature influence and C0 transport in foaming processes of poly(methyl methacrylate)-block copolymer nanocellular and microcellular foams", J. Supercrit. Fluids, (20140000), vol. 94, pages 198 - 205-
DESCRIPTION- SHIMBO, M.HIGASHITANI, I.MIYANO, Y., "Mechanism of strength improvement of foamed plastics having fine cell", J. Cell. Plast., (20070000), vol. 43, pages 157 - 167-
DESCRIPTION- TANG, L.ZHAI, WZHENG, W, "Autoclave preparation of expanded polypropylenelpoly(lactic acid) blend bead foams with a batch foaming process", J. Cell. Plast., (20110000), vol. 47, pages 429 - 446-
DESCRIPTION- WANG, G.WANG, C.ZHAO, J.WANG, G.PARK, C.B.ZHAO, G., "Modelling of thermal transport through a nanocellular polymer foam: Toward the generation of a new superinsulating material", Nanoscale, (20170000), vol. 9, pages 5996 - 6009-
DESCRIPTION- COLLIAS, D.I.BAIRD, D.G.BORGGREVE, R.J.M., "Impact toughening of polycarbonate by microcellular foaming", Polymer (Guildf), (19940000), vol. 35, doi:10.1016/0032-3861(94)90283-6, pages 3978 - 3983, XP024116360
DESCRIPTION- AL-SANEA, S.A.ZEDAN, M.F.AL-HUSSAIN, S.N., "Effect of thermal mass on performance of insulated building walls and the concept of energy savings potential", Appl. Energy, (20120000), vol. 89, doi:10.1016/j.apenergy.2011.08.009, pages 430 - 442, XP028301815
DESCRIPTION- GUO, Y.HOSSIENY, N.CHU, R.K.M.PARK, C.B.ZHOU, N., "Critical processing parameters for foamed bead manufacturing in a lab-scale autoclave system", Chem. Eng., (20130000), vol. 214, doi:10.1016/j.cej.2012.10.043, pages 180 - 188, XP055495542
DESCRIPTION- GUO, Y.HOSSIENY, N.CHU, R.K.M.PARK, C.B.ZHOU, N., "Critical processing parameters for foamed bead manufacturing in a lab-scale autoclave system", Chem. Eng. J., (20130000), vol. 214, doi:10.1016/j.cej.2012.10.043, pages 180 - 188, XP055495542
DESCRIPTION- YILMAZ, Z, "Evaluation of energy efficient design strategies for different climatic zones: Comparison of thermal performance of buildings in temperate-humid and hot-dry climate", Energy Build, (20070000), vol. 39, doi:10.1016/j.enbuild.2006.08.004, pages 306 - 316, XP005864854
DESCRIPTION- MILLER, D.KUMAR, V., "Microcellular and nanocellular solid-state polyetherimide (PEI) foams using sub-critical carbon dioxide II. Tensile and impact properties", Polymer (Guildf), (20110000), vol. 52, doi:10.1016/j.polymer.2011.04.049, pages 2910 - 2919, XP028386913
DESCRIPTION- NOTARIO, B.PINTO, J.SOLORZANO, E.DE SAJA, J.A.DUMON, M.RODRIGUEZ-PEREZ, M.A., "Experimental validation of the Knudsen effect in nanoceiiuiar polymeric foams", Polym. (United Kingdom, (20150000), vol. 56, doi:10.1016/j.polymer.2014.10.006, pages 57 - 67, XP029131723
DESCRIPTION- NOFAR, M.AMELI, A.PARK, C.B., "Development of polylactide bead foams with double crystal melting peaks", Polym. (United Kingdom, (20150000), vol. 69, doi:10.1016/j.polymer.2015.05.048, pages 83 - 94, XP029180681
DESCRIPTION- BERNARDO, V.MARTIN-DE LEON, J.PINTO, J.RODRIGUEZ-PEREZ, M.A.VERDEJO, R., "Modeling the heat transfer by conduction of nanocellular polymers with bimodal cellular structures", Polymer (Guildf), (20180000), vol. 160, doi:10.1016/j.polymer.2018.11.047, pages 126 - 137, XP085570751
DESCRIPTION- HENTZE, H.P.ANTONIETTI, M., "Porous polymers and resins for biotechnological and biomedical applications", Rev. Mol. Biotechnol., (20020000), vol. 90, doi:10.1016/S1389-0352(01)00046-0, pages 27 - 53, XP055044822
OPPOSITION- Anonymous, "Product Data Sheet SUMFOAM", SUMTEQ, (20190325), page 1, XP093134503-
OPPOSITION- D14 - Gutachten der SUMTEQ GmbH-
OPPOSITION- D16 - Präsentation der Firma va-Q-tec-
OPPOSITION- D20 - Produktdatenblatt SUMFOAM®-
OPPOSITION- D21 - Rechnung an Firma va-Q-tec-
OPPOSITION- D2 - ursprünglich eingereichte Unterlagen-
OPPOSITION- D37 - Präsentation "Polymeric insulation materials for the people and the planet"-
OPPOSITION- D38 - SUMTEQ Präsentation AMI Düsseldorf-
OPPOSITION- D39 - SUMTEQ Präsentation "Polymeric insulation materials for the people and the planet"-
OPPOSITION- D40 - Lieferschein Nitrochem-
OPPOSITION- D41 - Rechnung Nitrochem-
OPPOSITION- Dodson Brian, "Flexible, high-strength polymer aerogels deliver "super-insulation" properties", New Atlas, (20120927), New Atlas, URL: https://newatlas.com/polymer-aerogel-stronger-flexible-nasa/23955/, XP093304187-
OPPOSITION- Müller Alexander, Hoffmann Michael, "Entwicklung eines submikrozellularen Hochleistungsdämmstoffs aus einem Polystyrol-Nanoschaum", Sumteq GmbH, Abschlussbericht über ein Entwicklungsprojekt, gefördert unter dem Az: 33406 von der Deutschen Bundesstiftung Umwelt, (20180901), Sumteq GmbH, Abschlussbericht über ein Entwicklungsprojekt, gefördert unter dem Az: 33406 von der Deutschen Bundesstiftung Umwelt, URL: https://opac.dbu.de/ab/DBU-Abschlussbericht-AZ-33406_01-Hauptbericht%20korrigiert.pdf, XP093304188-
OPPOSITION- Sánchez-Calderón Ismael, "STUDY OF THE FEASIBILITY OF PRODUCING EXPANDED POLYCARBONATE BEAD FOAMS (EPC) BY AUTOCLAVE BEAD FOAMING", FOAMS 2021, (20210913), XP093304176-
OPPOSITION- Victoria Bernardo, "Nanocellular Polymers with a Gradient Cellular Structure Based on Poly(methyl methacrylate)/Thermoplastic Polyurethane Blends Produced by Gas Dissolution Foaming", Macromolecular Materials and Engineering, (2019), vol. 305, no. 1, doi:10.1002/mame.201900428, page 1900428, XP072734470
OPPOSITION- Kumar Vipin, Weller John E., "A model for the unfoamed skin on microcellular foams", Polymer Engineering and Science, BROOKFIELD CENTER., US, US , (19940201), vol. 34, no. 3, doi:10.1002/pen.760340302, ISSN 0032-3888, pages 169 - 173, XP093304183
OPPOSITION- Lena Grassberge, "Blowing agent free generation of nanoporous poly(methylmethacrylate) materials", ColloidPolym Sci, (20170120), vol. 295, no. 2, doi:10.1007/s00396-017-4012-1, pages 379 - 389, XP036138969
OPPOSITION- J. Pinto, M. Dumon, M.A. Rodriguez-Perez, "Chapter 9: Nanoporous polymer foams from nanostructured polymer blends: preparation, characterization, and properties", Recent Developments in Polymer Macro, Micro and Nano Blends, (20170101), pages 237 - 288, doi:10.1016/B978-0-08-100408-1.00009-1, ISBN 978-0-08-100408-1, XP009562801
OPPOSITION- Philippe Viot, "Microtomography on polypropylene foam under dynamic loading: 3D analysis of bead morphology evolution", Composites Part A: Applied Science and Manufacturing, (2008), vol. 39, no. 8, doi:10.1016/j.compositesa.2007.11.014, pages 1266 - 1281, XP023316703
OPPOSITION- Chimezie Okolieocha, "Microcellular to nanocellular polymer foams: Progress (2004-2015) and future directions - A review", European Polymer Journal, (20151111), vol. 73, doi:10.1016/j.eurpolymj.2015.11.001, pages 500 - 519, XP029305961
OPPOSITION- B. Notario, "Nanoporous polymeric materials: A new class of materials with enhanced properties", Progress in Materials Science, (20160219), vol. 78, doi:10.1016/j.pmatsci.2016.02.002, pages 93 - 139, XP029445523
OPPOSITION- M. Morisaki, "Preparation of skinless polymer foam with supercritical carbon dioxide and its application to a photoinduced hydrogen evolution system", Polymer, (2008), vol. 49, no. 6, doi:10.1016/j.polymer.2008.01.049, pages 1611 - 1619, XP022518820
OPPOSITION- Stéphane Costeux, "Low Density Thermoplastic Nanofoams Nucleated by Nanoparticles", Polymer, (20130321), vol. 54, no. 11, doi:10.1016/j.polymer.2013.03.052, pages 2785 - 2795, XP028589328
OPPOSITION- Bernardo Victoria, Martin-De Leon Judith, Pinto Javier, Catelani Tiziano, Athanassiou Athanassia, Rodriguez-Perez Miguel Angel, "Low-density PMMA/MAM nanocellular polymers using low MAM contents: Production and characterization", Polymer, ELSEVIER, AMSTERDAM, NL, AMSTERDAM, NL, (20190201), vol. 163, doi:10.1016/j.polymer.2018.12.057, ISSN 0032-3861, pages 115 - 124, XP093304179
OPPOSITION- Clifford S. Todd, "Closed-Cell Foam Skin Thickness Measurement Using a Scanning Electron Microscope", Microscopy and Microanalysis, (2011), vol. 17, no. 5, doi:10.1017/S1431927611000420, pages 772 - 778, XP001569137
OPPOSITION- SYURIK ET AL., "Bio-inspired, large scale, highly scattering films for nanoparticle-alternative white surfaces", SCIENTIFIC REPORTS, (20170421), doi:10.1038/srep46637, pages 1 - 11, XP002782691
OPPOSITION- Zhang Aijuan, Zhang Qingkun, Bai Hua, Li Lei, Li Jun, "Polymeric nanoporous materials fabricated with supercritical CO2 and CO2 -expanded liquids", Chemical Society Reviews, Royal Society of Chemistry, UK, UK , (20140717), vol. 43, no. 20, doi:10.1039/C4CS00100A, ISSN 0306-0012, pages 6938 - 6953, XP093304174
OPPOSITION- Pinto Javier, Solórzano Eusebio, Rodriguez-Perez Miguel Angel, De Saja Jose Antonio, "Characterization of the cellular structure based on user-interactive image analysis procedures", JOURNAL OF CELLULAR PLASTICS., SAGE PUBLICATIONS, LONDON., GB, GB , (20131101), vol. 49, no. 6, doi:10.1177/0021955X13503847, ISSN 0021-955X, pages 555 - 575, XP093304181
OPPOSITION- Pinto J, Escudero J, Solórzano E, Rodriguez-Perez Ma, "A novel route to produce structural polymer foams with a controlled solid skin-porous core structure based on gas diffusion mechanisms", Journal of Sandwich Structures and Materials, (20200301), vol. 22, no. 3, doi:10.1177/1099636218777434, ISSN 1099-6362, pages 822 - 832, XP093304182
OPPOSITION- Weingart Nick, Raps Daniel, Kuhnigk Justus, Klein Andreas, Altstädt Volker, "Expanded Polycarbonate (EPC)—A New Generation of High-Temperature Engineering Bead Foams", POLYMERS, Molecular Diversity Preservation International (M DP I) AG., CH, CH , vol. 12, no. 10, doi:10.3390/polym12102314, ISSN 2073-4360, page 2314, XP093304184
OPPOSITION- Sánchez-Calderón Ismael, Bernardo Victoria, Santiago-Calvo Mercedes, Naji Haneen, Saiani Alberto, Rodríguez-Pérez Miguel, "Effect of the Molecular Structure of TPU on the Cellular Structure of Nanocellular Polymers Based on PMMA/TPU Blends", POLYMERS, Molecular Diversity Preservation International (M DP I) AG., CH, CH , vol. 13, no. 18, doi:10.3390/polym13183055, ISSN 2073-4360, page 3055, XP093304173
OTHER- Anonymous, "Product Data Sheet SUMFOAM", SUMTEQ, (20190325), page 1, XP093134503-
OTHER- Anonymous, "Sumfoam - The New Generation of Advanced Materials", SUMTEQ, (20190325), pages 1 - 11, XP093134501-
OTHER- Grassberger Lena; Koch Karin; Oberhoffer Roland; Müller Alexander; Klemmer Helge F.M.; Strey Reinhard, "Blowing agent free generation of nanoporous poly(methylmethacrylate) materials", COLLOID & POLYMER SCIENCE, DE , (20170120), vol. 295, no. 2, doi:10.1007/s00396-017-4012-1, ISSN 0303-402X, pages 379 - 389, XP036138969

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents