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1. WO2018011700 - MANUFACTURE OF BISPHENOL A


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/IB2017/054153 SP150015PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
10 July 2017 12 July 2016
Applicant
SABIC GLOBAL TECHNOLOGIES B V
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

The invention is directed to a method for the manufacture of bisphenol A, to the use of acid in a method for crystallisation of bisphenol A/phenol adduct, and to bisphenol A/phenol adduct crystals. The method for the manufacture of bisphenol A comprises: a) reacting phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising bisphenol A; and b) crystallising a bisphenol A/phenol adduct from said product mixture, wherein said crystallisation is carried out in the presence of an acid, wherein the total amount of acid present during the crystallisation step is 5 % or less by total weight of the reaction product.


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No. ____________
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     C07C 37/20 (2006.01)i; C07C 37/84 (2006.01)i; C07C 39/16 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     C07C
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
FR 1287250 A (BAYER AG) 09 March 1962 (1962-03-09)
14
cited in the application
A
page 1, left-hand column, last line - page 2, left-hand column, line 3; claims; examples
1-13,15
(2)
X
EP 0671377 A1 (BAYER AG [DE]) 13 September 1995 (1995-09-13)
15
cited in the application
A
examples 1,3,4
1-14
(3)
X
EP 1728777 A1 (BAYER MATERIALSCIENCE AG [DE]) 06 December 2006 (2006-12-06)
15
cited in the application
A
examples
1-14
(4)
X
US 5648561 A (TAN QIU [CN] ET AL) 15 July 1997 (1997-07-15)
15
cited in the application
A
examples
1-14
(5)
A
US 3326986 A (DUGAN GORDON F ET AL) 20 June 1967 (1967-06-20)
1-15
column 3, paragraph 2 - paragraph 3
(6)
A
US 8680227 B1 (BELL PHILIP WESLEY [US] ET AL) 25 March 2014 (2014-03-25)
1-12
examples 3-14
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
FR 1287250 A
09 March 1962
NONE
EP 0671377 A1
13 September 1995
CN 1111608 A
DE 4408008 A1
EP 0671377 A1
JP H07258131 A
US 5545764 A
15 November 1995
14 September 1995
13 September 1995
09 October 1995
13 August 1996
EP 1728777 A1
06 December 2006
CN 1872827 A
DE 102005025788 A1
EP 1728777 A1
ES 2330874 T3
JP 5265094 B2
JP 2006335760 A
KR 20060126403 A
TW 200710073 A
US 2007004941 A1
US 2008108851 A1
06 December 2006
07 December 2006
06 December 2006
16 December 2009
14 August 2013
14 December 2006
07 December 2006
16 March 2007
04 January 2007
08 May 2008
US 5648561 A
15 July 1997
AU 6105594 A
BR 9406247 A
CA 2155860 A1
CN 1080914 A
DE 69415656 D1
DE 69415656 T2
EP 0683761 A1
JP 3414736 B2
JP H08509466 A
KR 100221806 B1
RU 2119906 C1
US 5648561 A
WO 9419302 A1
14 September 1994
02 January 1996
01 September 1994
19 January 1994
11 February 1999
27 May 1999
29 November 1995
09 June 2003
08 October 1996
15 September 1999
10 October 1998
15 July 1997
01 September 1994
US 3326986 A
20 June 1967
NONE
US 8680227 B1
25 March 2014
CN 104718238 A
DE 112013006107 T5
JP 5881909 B2
JP 2015533816 A
KR 20150028359 A
US 8680227 B1
WO 2014099596 A1
17 June 2015
17 September 2015
09 March 2016
26 November 2015
13 March 2015
25 March 2014
26 June 2014
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Netherlands
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
24 November 2017
Date of mailing of the international search report:
06 December 2017
Authorized officer:
Ginoux, Claude
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