Pentamethylene Diisocyanate, Method For Producing Pentamethylene Diisocyanate, Polyisocyanate Composition, Polyurethane Resin, And Polyurea Resin - EP2684867

The patent EP2684867 was granted to Mitsui Chemicals on Jan 2, 2019. The application was originally filed on Mar 7, 2012 under application number EP12754970A. The patent is currently recorded with a legal status of "Revoked".

EP2684867

MITSUI CHEMICALS
Application Number
EP12754970A
Filing Date
Mar 7, 2012
Status
Revoked
Jul 3, 2020
Grant Date
Jan 2, 2019
External Links
Slate, Register, Google Patents

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COVESTRO DEUTSCHLANDOct 2, 2019DAVEPONADMISSIBLE

Patent Citations (22) New

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Citation PhasePublication Number
DESCRIPTIONJP2004000114
DESCRIPTIONJP2008056790
DESCRIPTIONJP2009545553
DESCRIPTIONJP2010254764
DESCRIPTIONJP3905638B
DESCRIPTIONJPH01215280
DESCRIPTIONJPH02109985
DESCRIPTIONJPH02284485
DESCRIPTIONJPS59125895
DESCRIPTIONJPS61129173
INTERNATIONAL-SEARCH-REPORTJP2009545553
INTERNATIONAL-SEARCH-REPORTJP2011201863
INTERNATIONAL-SEARCH-REPORTJP2011201864
INTERNATIONAL-SEARCH-REPORTWO2011108473
OPPOSITIONJP2009545553
OPPOSITIONJP2010121011
OPPOSITIONJP2010254764
OPPOSITIONJP5225813B
OPPOSITIONUS3424780
OPPOSITIONWO2008015134
SEARCHJP2010254764
SEARCHWO2008015134

Non-Patent Literature (NPL) Citations (9) 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- BERG,D.E; BERG.C.M, BIO/TECHNOL., (1983), vol. 1, page 417
DESCRIPTION- Chemical Engineers Handbook, MARUZEN, (1988), pages 563 - 566,574
DESCRIPTION- Chemical Engineers Handbook, MARUZEN, (1988), pages 566 - 569
DESCRIPTION- Chemical Engineers Handbook, MARUZEN, (1988), pages 569 - 574
DESCRIPTION- J.CHROMATOGR., (1973), vol. 83, pages 353 - 355
DESCRIPTION- KOZAK, M., NUC. ACIDS RES., (1987), vol. 15, pages 8125 - 8148
DESCRIPTION- KRAMER, W.; RITA, H.J., METHODS IN ENZYMOLOGY, (1987), vol. 154, page 350
DESCRIPTION- SHINE, J.; DALGAMO, L., PROC. NATL. ACAD. SCI. USA, (1974), vol. 71, pages 1342 - 1346
OPPOSITION- SIEFKEN W, "MONO- UND POLYISOCYANATE IV. MITTEILUNG UEBER POLYURETHANE", JUSTUS LIEBIGS ANNALEN DER CHEMIE,, (19490000), vol. 562, pages 75 - 136, XP009015174

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