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1. WO2018121685 - PVB FILM FOR HEAD UP DISPLAY (HUD), FORMING MOLD AND FORMING METHOD THEREOF


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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/CN2017/119499 FPME17140094
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
28 December 2017 29 December 2016
Applicant
SAINT-GOBAIN GLASS FRANCE 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 filed or furnished:
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.

A PVB film for HUD, a forming mold and a forming method thereof are disclosed. The accuracy error of HUD imaging achieved by the PVB film for HUD is ± 0.1 mrad. The forming mold comprises an upper mold (4) and a lower mold (5), the two of which can form an enclosed mold cavity when clamped together, wherein protective films are disposed on inner surfaces of the upper mold (4) and the lower mold (5), respectively, for supporting PVB material and preventing the PVB material from bonding with the upper mold (4) and the lower mold (5), and wherein shapes of the protective films match shapes of the upper mold (4) and the lower mold (5). The forming method comprises the following steps: sandwiching PVB material between two protective films, and then placing the PVB material into a pre-heated mold; or placing a first protective film of the two protective films into the pre-heated mold, and then placing the PVB material onto the first protective film, and finally placing a second protective film of the two protective films onto the PVB material; clamping the mold; pressurizing the mold and heating the mold to a desired temperature; taking out a formed PVB film along with the two protective films; cooling the formed PVB film; and peeling the two protective films and obtaining the PVB film for HUD.


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

     B29C 43/36 (2006.01)i; G02B 27/10 (2006.01)i; B32B 17/10 (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):
     B29C; G02B; B32B
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):
VEN,CNKI,CNTXT, CNABS:HUD, head up, PVB, polyvinyl butyral, film, sheet, mold, heat+, press+, wedge+, curv+

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 205185181 U (LIAONING LONGFA ELECTRIC EQUIP CO LTD) 27 April 2016 (2016-04-27)
1-4
description, paragraphs [0012]-[0017], and figure 1
(2)
X
US 2011189426 A1 (PILKINGTON GROUP LTD ET AL.) 04 August 2011 (2011-08-04)
20-24
claim 1, and description, paragraphs [0010]-[0016]
(3)
PX
CN 206748878 U (SAINT-GOBAIN GLASS FRANCE SA) 15 December 2017 (2017-12-15)
1-25
description, paragraphs [0035]-[0043]
(4)
A
US 5013134 A (HUGHES AIRCRAFT CO) 07 May 1991 (1991-05-07)
1-25
the whole document
(5)
A
US 2004245659 A1 (AMKOR TECHNOLOGY INC ET AL.) 09 December 2004 (2004-12-09)
1-25
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
"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)
CN 205185181 U
27 April 2016
None
US 2011189426 A1
04 August 2011
GB 0817654 D0
BR PI0919309 A2
KR 20110081207 A
JP 5749647 B2
JP 2012503572 A
EP 2331324 A1
WO 2010035031 A1
CN 102164744 A
US 8764923 B2
05 November 2008
22 December 2015
13 July 2011
15 July 2015
09 February 2012
15 June 2011
01 April 2010
24 August 2011
01 July 2014
CN 206748878 U
15 December 2017
None
US 5013134 A
07 May 1991
EP 0420228 A2
EP 0420228 A3
JP H03209210 A
JP 2815693 B2
DE 69017572 T2
EP 0420228 B1
CA 2025610 C
DE 69017572 D1
CA 2025610 A1
KR 940000091 B1
03 April 1991
16 October 1991
12 September 1991
27 October 1998
06 July 1995
08 March 1995
08 August 1995
13 April 1995
29 March 1991
05 January 1994
US 2004245659 A1
09 December 2004
US 6875379 B2
05 April 2005
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 March 2018
Date of mailing of the international search report:
02 April 2018
Authorized officer:
SONG,Congyu
Telephone No. (86-10)62084978
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