USPatentGranted
B2

Method for producing hydrogenated biphenol

Granted 20 Oct 2015 · 2 office actions

Assignee: Daicel Corporation

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Inventors: Mitsuru Ohno, Tomohiro Hashizume · Examiner: Brian J Davis · AU 1672 · TC 1600

Life of the patent

7 dated events
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Abstract

Provided is a method for efficiently producing high-purity hydrogenated biphenol based on a simple method that can be industrially utilized using easily-available biphenol as a starting material. The method for producing hydrogenated biphenol according to the present invention is a method for producing hydrogenated biphenol by hydrogenating biphenol represented by the following formula (1): [structure] to obtain hydrogenated biphenol represented by the following formula (2): [structure] the method including: a reaction step of hydrogenating the biphenol represented by formula (1); and a purification step of washing or crystallizing a reaction product obtained from the reaction step using an aromatic hydrocarbon.

Claims

12 · 2 independent · depth 3
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12 granted claims

Classifications

4 codes
IPC · International Patent Classification
Section C — Chemistry; metallurgy
  • C07C29/60
  • C07C1/24
  • C07C29/20
  • C07C29/78

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File wrapper

⤢ drag to zoomApr 2013Jul 2013Oct 2013Jan 2014Apr 2014Jul 2014Oct 2014Jan 2015Apr 2015Jul 2015Oct 2015USPTOApplicantNon-final rejectionResponse after non-final
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Pendency
2.6 y
936 days filing → grant
Office actions
1
non-final + final
Responses
2
no RCE
Examiner
Brian J Davis
art unit 1672 · TC 1600
Citations: 8 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20150099901 A19 Apr 2015

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Citations

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