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1. (WO2019046149) CONTINUOUS EXTRUDER PROCESS FOR MANUFACTURING RHEOLOGY-MODIFIED POLYOLEFIN FOR CABLE INSULATION LAYER, AND RELATED PRODUCTS



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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/US2018/048057 DOW-39963-A
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
27 August 2018 30 August 2017
Applicant
DOW GLOBAL TECHNOLOGIES LLC
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
This International Searching Authority found multiple inventions in this international application, as follows:
1. claims: 1-13, 15, 16
Independent claim 1 relates to a one-unit operation, continuous extrusion process for making a rheology-modified, additive-containing ethylenic polymer, further dependent claims 2 to 13 relate to preferred embodiments, further claims 15 (independent) and 16 (dependent) refer to related products.
2. claim: 14
Independent claim 14 relates to a crosslinked ethylenic polymer.
3. claim: 17
Independent claim 17 relates to a method of conducting electricity.
1.
As all required additional search fees were timely paid by the applicant, this international search report covers all searchable claims.
2.
As all searchable claims could be searched without effort justifying additional fees, this Authority did not invite payment of additional fees.
3.
As only some of the required additional search fees were timely paid by the applicant, this international search report covers only those claims for which fees were paid, specifically claims Nos.:
4.
No required additional search fees were timely paid by the applicant. Consequently, this international search report is restricted to the invention first mentioned in the claims; it is covered by claims Nos.: 1-13, 15, 16
Remark on Protest
The additional search fees were accompanied by the applicant’s protest and, where applicable, the payment of a protest fee.
The additional search fees were accompanied by the applicant’s protest but the applicable protest fee was not paid within the time limit specified in the invitation.
No protest accompanied the payment of additional search fees.
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:
CONTINUOUS EXTRUDER PROCESS FOR MANUFACTURING RHEOLOGY-MODIFIED POLYOLEFIN FOR CABLE INSULATION LAYER, AND RELATED PRODUCTS

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.

Rheology-modified, additive-containing ethylenic polymer compositions are prepared in a continuously operated extruder comprising first, second and third zones by a process comprising the steps of: mixing in the second zone of the extruder an ethylenic polymer and a high-temperature decomposing peroxide at a temperature such that the half-life of the peroxide is equal to or greater than one minute and for a sufficient period of time to modify the rheology of the ethylenic polymer to produce a rheology-modified, melted ethylenic polymer for transfer to the third zone of the extruder; and adding to the third zone one or more additives to the rheology-modified, melted ethylenic polymer to produce the rheology-modified, additive-containing ethylenic polymer.


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     1    
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

     B29B 7/00 (2006.01)i; B29B 7/94 (2006.01)i; C08J 3/20 (2006.01)i; B29C 47/10 (2006.01)i; B29C 47/60 (2006.01)i; B29B 7/42 (2006.01)n; B29B 7/48 (2006.01)n; B29B 7/60 (2006.01)n
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):
     B29B; C08J; B29C
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
WO 2016124617 A1 (BOREALIS AG [AT]) 11 August 2016 (2016-08-11)
1-13
Y
page 1, lines 4-13
1-13,15,16
page 5, line 7 - page 9, line 7
page 10, last line - page 16, line 12
page 19, lines 2-26
page 21, line 25 - page 23, line 17
page 24, line 2 - page 29, line 21
abstract; claims 1-9,19; figure 2
(2)
A
EP 2468813 A1 (BOREALIS AG [AT]) 27 June 2012 (2012-06-27)
1-13,15,16
abstract; claims 1-15
(3)
A
US 6395791 B1 (CHAUDHARY B I [US] ET AL) 28 May 2002 (2002-05-28)
1-13,15,16
abstract; claims 1-11
(4)
A
US 2011266027 A1 (PHAM TUNG [AT] ET AL) 03 November 2011 (2011-11-03)
1-13,15,16
abstract; claims 1-27
(5)
X
US 5716574 A (KAWASAKI Y [JP]) 10 February 1998 (1998-02-10)
15,16
Y
column 1, lines 5-19,34-52
1-13,15,16
column 2, lines 14-38,49-67
column 3, line 39 - column 4, line 41
column 5, line 65 - column 6, line 55
column 7, lines 12-26
abstract; claims 1-8; figure 1
(6)
X
US 2017101528 A1 (PERSON T J [US] ET AL) 13 April 2017 (2017-04-13)
15,16
Y
paragraphs [0003], [0012], [0024], [0025], [0034] - [0036], [0039], [0043] - [0045], [0048] - [0053]
1-13,15,16
abstract; claims 1-15
(7)
X
US 2015267036 A1 (CREE S H [CH]) 24 September 2015 (2015-09-24)
15,16
Y
paragraphs [0001], [0002], [0022] - [37.60], [0061], [0068], [0069], [0074] - [0076]
1-13,15,16
abstract; claims 1-8
*
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)
WO 2016124617 A1
11 August 2016
BR 112017015146 A2
CN 107848222 A
EP 3253561 A1
JP 6328348 B2
JP 2018504486 A
KR 20170103945 A
TW 201630953 A
US 2017361543 A1
WO 2016124617 A1
23 January 2018
27 March 2018
13 December 2017
23 May 2018
15 February 2018
13 September 2017
01 September 2016
21 December 2017
11 August 2016
EP 2468813 A1
27 June 2012
EP 2468813 A1
ES 2415504 T3
27 June 2012
25 July 2013
US 6395791 B1
28 May 2002
AU 1939401 A
EP 1254191 A2
US 6395791 B1
US 6583222 B1
US 2002151609 A1
WO 0140374 A2
12 June 2001
06 November 2002
28 May 2002
24 June 2003
17 October 2002
07 June 2001
US 2011266027 A1
03 November 2011
CN 102264827 A
EP 2370515 A1
ES 2560803 T3
US 2011266027 A1
WO 2010076231 A1
30 November 2011
05 October 2011
22 February 2016
03 November 2011
08 July 2010
US 5716574 A
10 February 1998
JP H08298032 A
US 5716574 A
12 November 1996
10 February 1998
US 2017101528 A1
13 April 2017
CA 2948260 A1
CN 106507676 A
EP 3143084 A1
JP 2017516896 A
KR 20170010312 A
TW 201546152 A
US 2017101528 A1
WO 2015175106 A1
19 November 2015
15 March 2017
22 March 2017
22 June 2017
26 January 2017
16 December 2015
13 April 2017
19 November 2015
US 2015267036 A1
24 September 2015
BR 112015006260 A2
CA 2881021 A1
CN 104823246 A
EP 2901459 A1
JP 5894710 B2
JP 2015535864 A
KR 20150060719 A
TW 201425424 A
US 2015267036 A1
US 2017233546 A1
WO 2014051954 A1
04 July 2017
03 April 2014
05 August 2015
05 August 2015
30 March 2016
17 December 2015
03 June 2015
01 July 2014
24 September 2015
17 August 2017
03 April 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:
05 November 2018
Date of mailing of the international search report:
11 January 2019
Authorized officer:
Brunold, Axel
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