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Highly-Concentrated Flowable Salts Of Alkyl Polyalkoxy Sulphates - EP2688977

The patent EP2688977 was granted to Sasol Germany on Jun 3, 2020. The application was originally filed on Mar 23, 2012 under application number EP12711345A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2688977

SASOL GERMANY
Application Number
EP12711345A
Filing Date
Mar 23, 2012
Status
Patent Maintained As Amended
May 1, 2020
Publication Date
Jun 3, 2020
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Family

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BASFJul 30, 2018BUCHELWITHDRAWN

Patent Citations (19) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTDE19714043
INTERNATIONAL-SEARCH-REPORTEP0167337
INTERNATIONAL-SEARCH-REPORTGB2168095
INTERNATIONAL-SEARCH-REPORTUS3893955
INTERNATIONAL-SEARCH-REPORTUS3931271
INTERNATIONAL-SEARCH-REPORTUS4886120
OPPOSITIONEP0003183
OPPOSITIONEP0024711
OPPOSITIONEP0052801
OPPOSITIONEP0167337
OPPOSITIONGB2168095
OPPOSITIONJPH0734089
OPPOSITIONUS3843706
OPPOSITIONUS4411815
OPPOSITIONUS4483787
OPPOSITIONUS6222077
OPPOSITIONWO2009100298
OPPOSITIONWO2009100301
OPPOSITIONWO2011045254

Non-Patent Literature (NPL) Citations (10) 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
OPPOSITION- BASF, "Lutensol® AO Marken", Technisches Informationsblatt, (19950700), XP055509513
OPPOSITION- "chapter 12 Modern SO3 sulfonation Technology", Moretti et al, Anionic Surfactants - Organic Chemistry, (19800000), pages 648 - 692
OPPOSITION- Chlebicki et al, "Synthesis and surface activity of sodium polyoxypropylated higher alcohol sulphates", Tenside Detergents 17, (19800000), vol. 17, pages 130 - 134
OPPOSITION- D.B. LEVITT et al., "Identification and evaluation of high-performance EOR surfactants", SPE, (20060400), no. 100089, pages 1 - 11, XP002635293
OPPOSITION- D.L. ZANG et al., "Favorable Attributes of Alkali-Surfactant-Polymer Flooding", SPE/DOE Symposium on Improved Oil Recovery, Tulsa, (20060422), no. SPE 99744, pages 1 - 13, XP055509505
OPPOSITION- H.W. Stache, Anionic Surfactants. Organic chemistry, New York , Basel, Hong Kong, Marcel Decker, (19950000), vol. 56, pages 647, 680 - 685, XP055509477
OPPOSITION- Viskositätsmessungen bestimmter Konzentrate
OPPOSITION- A. FERNÄNDEZ et al., "Synthesis of new extended surfactants containing a carboxylate or sulfate polar group", Journal of Surfactants and Detergents, (20050401), vol. 8, no. 2, pages 187 - 191, XP001228391
OPPOSITION- IGLAUER, S. et al., "New surfactant classes for enhanced oil recovery and their tertiary oil recovery potential", Journal of Petroleum Science and Engineering, (20100300), vol. 71, no. 1-2, pages 23 - 29, XP026924422
OPPOSITION- D.W. ROBERTS, "Sulfonation Technology for Anionic Surfactant Manufacture", Organic Process Research & Development, (19980417), vol. 2, pages 194 - 202, XP055358415

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