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Antioxidant For Low-Density Polyurethane Foam - EP3720893

The patent EP3720893 was granted to Shell Internationale Research Maatschappij on Oct 23, 2024. The application was originally filed on Dec 6, 2018 under application number EP18819035A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3720893

SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ
Application Number
EP18819035A
Filing Date
Dec 6, 2018
Status
Patent Maintained As Amended
Sep 19, 2024
Grant Date
Oct 23, 2024
External Links
Slate, Register, Google Patents

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BASFMar 23, 2022BASF ASSOCIATION -

Patent Citations (38) New

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

Citation PhasePublication Number
DESCRIPTIONCN103275296
DESCRIPTIONCN106117537
DESCRIPTIONEP0076491
DESCRIPTIONEP0343907
DESCRIPTIONEP0495551
DESCRIPTIONJP2013227490
DESCRIPTIONKR20120060672
DESCRIPTIONUS2002123536
DESCRIPTIONUS2004143028
DESCRIPTIONUS2006293402
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DESCRIPTIONUS2012238657
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DESCRIPTIONUS2013030068
DESCRIPTIONUS2013203880
DESCRIPTIONUS2014155506
DESCRIPTIONUS2017267914
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DESCRIPTIONUS5182310
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DESCRIPTIONWO2006111492
DESCRIPTIONWO2011125952
DESCRIPTIONWO2017037204
DESCRIPTIONWO2017162520
INTERNATIONAL-SEARCH-REPORTEP1437372
INTERNATIONAL-SEARCH-REPORTUS2002123536
INTERNATIONAL-SEARCH-REPORTUS3751375
INTERNATIONAL-SEARCH-REPORTWO2015162125
OPPOSITIONCN104774306
OPPOSITIONEP1437372
OPPOSITIONEP1630185
OPPOSITIONEP1647565
OPPOSITIONKR20120060672
OPPOSITIONUS2013203880
OPPOSITIONWO2015162125
OPPOSITIONWO2018050628
OPPOSITIONWO9510559
OPPOSITIONWO9916821

Non-Patent Literature (NPL) Citations (13) 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
DESCRIPTION- "Additives for Polyolefins", CORNELIA VASILE, Handbook of Polyolefins
DESCRIPTION- G.L. STATTON et al., "Evaluation of hindered phenols for minimization of foam discoloration using the microwave scorch test", Journal of Cellular Plastics, (19840900), pages 346 - 350
DESCRIPTION- M. CLAUSS et al., "Antioxidant Systems for Stabilization of Flexible Polyurethane Slabstock Foams", Journal of Cellular Plastics, (19970900), vol. 33, pages 457 - 476, XP009008914
DESCRIPTION- M. IONESCU, "Chemistry and Technology of Polyols for Polyurethanes", Rapra Technology Limited, (20050000), page 8
DESCRIPTION- M. IONESCU, "Chemistry and Technology of Polyols for Polyurethanes", Rapra Technology Limited, (20050000), pages 134 - 137
DESCRIPTION- R.L. GRAY et al., "Low Volatility Antioxidants for Scorch Protection of Polyurethane Foams", Journal of Vinyl & Additive Technology, (19960900), vol. 2, no. 3, pages 265 - 269
DESCRIPTION- R.L. GRAY et al., "New Scorch Inhibitors for Flexible Polyurethane Bunstock", 35th Annual Polyurethane Technical/Marketing Conference, (19941009), pages 333 - 337
INTERNATIONAL-SEARCH-REPORT- CLAUSS M ET AL, "ANTIOXIDANT SYSTEMS FOR STABILIZATION OF FLEXIBLE POLYURETHANE SLABSTOCK FOAMS", JOURNAL OF CELLULAR PLAST, SAGE PUBLICATIONS, LONDON, GB, (19970101), vol. 33, no. 5, ISSN 0021-955X, pages 457 - 476, XP009008914 [X] 10 * pages 457-459 * * pages 468, 471; figures 8, 12; examples 2, 3 * [I] 1-9
OPPOSITION- Basf, "Technical Data sheet for Lupranol® 4003/1", (20150501), pages 1 - 3, XP055907960
OPPOSITION- Basf, "Technical Information Irganox® 245 Phenolic Primary Antioxidant for Processing and Long-Term Thermal Stabilization", BASF Plastic Additives, (20100901), pages 1 - 2, XP055907956
OPPOSITION- CLAUSS M et al., "Antioxidant systems for stabilization of flexible polyurethane slabstock foams", Journal of Cellular Plast, London, GB, (19970101), vol. 33, no. 5, ISSN 0021-955X, pages 457 - 476, XP009008914
OPPOSITION- Oertel G, "5 Polyurethane Flexible Foams, 5.1 Slabstock Foams", Polyurethane Handbook, Hanser Publishers, (19940101), pages 177 - 215, ISBN 978-1-56990-157-1, XP055907964
OPPOSITION- Stohler F, "New aspects in polyol stabilization and scorch prevention in flexible polyurethane foams", Macromolecules 1992, (19930101), pages 527 - 539, XP055907951

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