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1. (WO2019061019) TWO-COMPONENT SYSTEM FOR ELASTIC COATINGS



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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/CN2017/103413 FPCH17160212
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
26 September 2017
Applicant
Covestro Deutschland AG et al
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.

Provided is a two-component system comprising: a component A) comprising at least one polymeric polyol which has an OH content of ≤4.5wt%, based on the total solids content of the polymeric polyol, and a component B) comprising at least one polyisocyanate which has an average isocyanate group functionality of ≥4.0 to ≤10.0, based on the total solids content of the polyisocyanate, a fraction of ≤25wt% of oligomers containing isocyanate groups and having a number-average molecular weight of ≤780g/mol, based on the total solids content of the polyisocyanate, and an isocyanurate group fraction of ≥5mol% to ≤70mol%, based on the total amount of isocyanurate groups and allophanate groups in the polyisocyanate. Further provided are a method for producing a coating on a substrate, the coating obtained by the method, and the coated substrate.


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

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):
     C09D
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):
CNPAT,CNKI,WPI:functionality,polyol,isocyanurate,isocyanate,allophanate,oligomer

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
CN 1556820 A (ASAHI KASEI CORP) 22 December 2004 (2004-12-22)
1-16
description,page 3 line 18 to page 4 line 28,page 11 line 12 to page 12 line 9,and page 19 line 18 to page 22 line 11
(2)
X
CN 105418886 A (ASAHI KASEI CORP) 23 March 2016 (2016-03-23)
1-16
description,paragraphs [0015]-[0058]
(3)
X
CN 107189039 A (ASAHI KASEI CORP) 22 September 2017 (2017-09-22)
1-16
description,paragraphs [0015]-[0133]
(4)
X
JP 2003128989 A (ASAHI KASEI CORP) 08 May 2003 (2003-05-08)
1-16
description,paragraphs [0009]-[0058]
(5)
A
CN 104768996 A (VENCOREX FRANCE) 08 July 2015 (2015-07-08)
1-16
the whole document
(6)
A
CN 106459336 A (COVESTRO LLC) 22 February 2017 (2017-02-22)
1-16
the whole document
(7)
A
JP 2006016430 A (ASAHI KASEI CHEMICALS CORP) 19 January 2006 (2006-01-19)
1-16
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"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)
CN 1556820 A
22 December 2004
JP WO2003027163 A1
KR 20040035792 A
WO 03027163 A1
EP 1445271 A1
US 2004247888 A1
JP 3902180 B2
EP 1445271 A4
KR 100583222 B1
DE 60229872 D1
EP 1445271 B1
US 7268202 B2
CN 1300209 C
06 January 2005
29 April 2004
03 April 2003
11 August 2004
09 December 2004
04 April 2007
22 December 2004
25 May 2006
24 December 2008
12 November 2008
11 September 2007
14 February 2007
CN 105418886 A
23 March 2016
JP 2016060778 A
25 April 2016
CN 107189039 A
22 September 2017
JP 2017165813 A
21 September 2017
JP 2003128989 A
08 May 2003
None
CN 104768996 A
08 July 2015
US 2015232607 A1
EP 2892939 A1
US 9708439 B2
FR 2995310 B1
DK 2892939 T3
CN 104768996 B
FR 2995310 A1
EP 2892939 B1
KR 20150052875 A
WO 2014037514 A1
20 August 2015
15 July 2015
18 July 2017
11 December 2015
28 November 2016
22 February 2017
14 March 2014
31 August 2016
14 May 2015
13 March 2014
CN 106459336 A
22 February 2017
EP 3097131 A4
EP 3097131 A1
WO 2015112439 A1
US 2015203705 A1
13 September 2017
30 November 2016
30 July 2015
23 July 2015
JP 2006016430 A
19 January 2006
JP 5132029 B2
30 January 2013
Name and mailing address of the ISA/:
STATE INTELLECTUAL PROPERTY OFFICE OF THE P.R.CHINA
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
23 May 2018
Date of mailing of the international search report:
01 June 2018
Authorized officer:
MA,Zhenpeng
Telephone No. 86-(010)-62084940
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