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Method For Production Of Low Density Polyester Foam And Articles Made Thereof Utilizing Low I.V. Polyester Feedstock - EP3707197

The patent EP3707197 was granted to WRH Technology on Jan 1, 2025. The application was originally filed on Oct 29, 2018 under application number EP18870494A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3707197

WRH TECHNOLOGY
Application Number
EP18870494A
Filing Date
Oct 29, 2018
Status
Granted And Under Opposition
Nov 29, 2024
Publication Date
Jan 1, 2025
External Links
Slate, Register, Google Patents

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GURIT UKSep 22, 2025PAGE WHITE FARRERADMISSIBLE

Patent Citations (28) New

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

Citation PhasePublication Number
DESCRIPTIONUS5288764
DESCRIPTIONUS5340846
DESCRIPTIONUS5391582
DESCRIPTIONUS5422381
DESCRIPTIONUS5431972
DESCRIPTIONUS5679295
DESCRIPTIONUS5696176
INTERNATIONAL-SEARCH-REPORTUS2003135015
INTERNATIONAL-SEARCH-REPORTUS2004254332
INTERNATIONAL-SEARCH-REPORTUS5176861
INTERNATIONAL-SEARCH-REPORTUS6284808
INTERNATIONAL-SEARCH-REPORTUS7828538
INTERNATIONAL-SEARCH-REPORTWO2007067421
OPPOSITIONCN105131538
OPPOSITIONCN105273368
OPPOSITIONJP2001213951
OPPOSITIONUS2015251343
OPPOSITIONUS5090134
OPPOSITIONUS5958164
SEARCHEP2383309
SEARCHUS2002177663
SEARCHUS2004254332
SEARCHUS2015239154
SEARCHUS5679295
SEARCHUS5681865
SEARCHUS5696176
SEARCHUS6284808
SEARCHUS8790558

Non-Patent Literature (NPL) Citations (14) New

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

Citation PhaseReference Text
EXAMINATION- Elamri Adel ET AL, "Progress in Polyethylene Terephthalate Recycling", Polyethylene Terephthalate: Uses, Properties and Degradation, Nova Science Publishers, (20170501), ISBN 978-1-5361-1991-6, XP055915123
EXAMINATION- AWAJA F ET AL, "Recycling of PET", EUROPEAN POLYMER JOURNAL, PERGAMON PRESS LTD OXFORD, GB, (20050701), vol. 41, no. 7, doi:10.1016/J.EURPOLYMJ.2005.02.005, ISSN 0014-3057, pages 1453 - 1477, XP004871122
OPPOSITION- Anonymous, "PET Standard Laboratory Processing Practices", The Association of Plastic Recyclers, (20190411), XP093256842
OPPOSITION- Anonymous, "The PET Crystallizer SCR Improvement", Special Reports, (20150501), Special Reports, URL: https://www.shini.com/ep_edm/en/contect_960.html, XP093256863
OPPOSITION- D12E - Google Scholar extract evidencing publication date of D12 to be in the year 2000
OPPOSITION- D13 - ViscoSTAR data sheet (no date found)
OPPOSITION- D14E - screenshot showing publication date of D14
OPPOSITION- D14 - VISCOLAB - Intrinsic Viscosity, January 2015
OPPOSITION- D4 - HAROLD F. GILES JR. ET AL, EXTRUSION, THE DEFINITIVE PROCESSING GUIDE AND HANDBOOK, William Andrew, (2005), page 20, 181, 534, ISBN 0-8155-1473-5
OPPOSITION- John Goff and Tony Whelan, "Section 4. The screw and barrel system", The Dynisco Extrusion Processors Handbook, 2nd edition, Dynisco, (20000101), pages 72 - 100, XP009560381
OPPOSITION- Stoughton Pete, "Why & When Should You Re-Crystallize PET Scrap?", Plastics Technology, (20151026), Plastics Technology, URL: https://www.ptonline.com/articles/why-when-should-you-re-crystallize-pet-scrap, XP093320308
OPPOSITION- Kun Sup Hyun, Myung-Ho Kim, "Chapter 11: Foam Extrusion with Physical Blowing Agents—Practical Approach", Foam Extrusion : Principles and Practice, Second Edition, CRC PRESS, (20140407), pages 319 - 376, doi:10.1201/b16784, ISBN 978-1-4398-9860-4, XP009561142
OPPOSITION- Leonard F. Sansone, "Chapter 9: Process Design for Thermoplastic Foam Extrusion", Foam Extrusion : Principles and Practice, Second Edition, CRC PRESS, (20140407), pages 267 - 292, doi:10.1201/b16784, ISBN 978-1-4398-9860-4, XP009561143
OPPOSITION- Shau-Tarng Lee, Marino Xanthos, Subir K. Dey, "15 Foam Extrusion of Polyethylene Terephthalate (PET)", Foam Extrusion : Principles and Practice, Second Edition, CRC PRESS, (20140407), pages 489 - 525, doi:10.1201/b16784, ISBN 978-1-4398-9860-4, XP009561141

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