The patent has been granted
The patent has been granted, Grant of patent is intended, Request for examination was made
EP Register Verified
POLYMER-CONTAINING COMPOSITION AND ANTIFOULING COATING COMPOSITION
Publication No.
EP3901213
•
App No.
EP21164217
•
Filed by
Mitsubishi Chemical Corporation
•
Filed on
2016-11-28
•
Issued/Published on
2025-09-10
Publication No.
EP3901213
A2
Application No.
EP21164217
Filed: 2016-11-28
Grant Date
2025-09-10
Mention of grant
Active Oppositions
1 Active
EPO Oppositions
Patent Abstract / Summary
[0001] Provided is an antifouling coating composition, which can form a coating film having good hardness and good physical properties and having a wear degree appropriate for expressing a long-term antifouling effect, has a viscosity not being excessively high, and makes it possible to reduce a content of volatile organic compounds, and a polymer-containing composition which is suitable for obtaining the antifouling coating composition. The polymer-containing composition contains a (meth)acryl-based copolymer (A-1), in which the (meth)acryl-based copolymer (A-1) contains a constitutional unit (U11) or a constitutional unit (U12) having carboxylate forming an ionic bond with a divalent metal atom, and further contains a constitutional unit (U3) derived from a monomer (u3-1) having a substituted or unsubstituted alicyclic functional group, and has a weight-average molecular weight of 1,000 to 5,000, and the polymer-containing composition has a coating film hardness (Martens hardness) equal to or higher than 2.5 N/mm<2>.
IPC Classifications
C08L43/00, C08L33/04, C09D5/16, C09D133/00
Priority Claims
JP 20160133242
Date: 2016-07-05
Designated Contracting States (38 EPC States)
AL
AT
BE
BG
CH
CY
CZ
DE
DK
EE
ES
FI
FR
GB
GR
HR
HU
IE
IS
IT
LI
LT
LU
LV
MC
MK
MT
NL
NO
PL
PT
RO
RS
SE
SI
SK
SM
TR
Parties & Representation
Applicants
Mitsubishi Chemical Corporation
1-1, Marunouchi 1-chome, Chiyoda-ku
JPInventors (4)
TANIGUCHI, Kana
c/o Mitsubishi Chemical Corporation, 1-1, Marunouchi 1-chome
JPKATSUMATA, Sho
c/o Mitsubishi Chemical Corporation, 1-1, Marunouchi 1-chome
JPNAKAMURA, Junichi
c/o Mitsubishi Chemical Corporation, 1-1, Marunouchi 1-chome
JPKANAZAWA, Nobuaki
c/o Mitsubishi Chemical Corporation, 1-1, Marunouchi 1-chome
JPRepresentatives / Agents
Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB, Arabellastraße 30
DEf & e patent
Braunsberger Feld 29, 51429 Bergisch Gladbach
DEKey Procedural Dates
Request-For-Examination
2021-03-23
Mention Of Grant Published
2025-09-10
First-Examination-Report-Despatched
2025-04-29
Patent Oppositions
Official opposition proceedings filed against European Patent EP3901213 under EPC Article 99.
#1
Opponent
Company
PPG Industries, Inc.
One PPG Place, US
Representative
f & e patent
Filing
Date
Opposition in Progress
2026-06-09
Legal Status & Event History
Official European Patent Office legal and procedural status changes recorded for this file.
| Date | Code | Event Description | Auth |
|---|---|---|---|
| 2021-10-27 | 17P | REQUEST FOR EXAMINATION FILED | EP |
| 2021-10-27 | AC | DIVISIONAL APPLICATION: REFERENCE TO EARLIER APPLICATION | EP |
| 2021-10-27 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2021-09-24 | PUAI | PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE | EP |
| 2021-09-24 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2021-12-10 | PUAL | SEARCH REPORT DESPATCHED | EP |
| 2022-01-12 | RIC1 | INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT | EP |
| 2022-01-12 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2025-04-29 | GRAP | DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT | EP |
| 2025-04-29 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2025-05-28 | INTG | INTENTION TO GRANT ANNOUNCED | EP |
| 2025-08-08 | GRAA | (EXPECTED) GRANT | EP |
| 2025-08-06 | GRAS | GRANT FEE PAID | EP |
| 2025-08-08 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2025-09-10 | AC | DIVISIONAL APPLICATION: REFERENCE TO EARLIER APPLICATION | EP |
| 2025-09-10 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2025-09-10 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-09-15 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-09-25 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-10-08 | P01 | OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED | EP |
| 2025-10-08 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-10-29 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-12-15 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-08 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-09 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-12 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-12 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-01-14 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-15 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-16 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-20 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-22 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-23 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-28 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-30 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-02-15 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-04-06 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-04-14 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-04-15 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-04-20 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-04-23 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-04-28 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-06-12 | PLBI | OPPOSITION FILED | EP |
| 2026-06-17 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-06-23 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-06-24 | PLAX | NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT | EP |
| 2026-06-09 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-06-30 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-07-09 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-07-15 | 26 | OPPOSITION FILED | EP |
| 2026-07-16 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-07-17 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-08-15 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-08-26 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-09 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
Patent & Non-Patent Citations
Cited documents and prior art referenced in search and examination reports.
Cited Patent Documents
Non-Patent Scientific Literature (NPL)
- J. BRANDRUP ET AL.: "POLYMER HANDBOOK FOURTH EDITION", pages: 688 - 694
Worldwide Patent Family
Related applications and patents in the same INPADOC worldwide family.
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| EP | EP3901213A2 | A2 | 2021-10-27 | Espacenet |
| EP | EP3901213A3 | A3 | 2022-01-12 | Espacenet |
| EP | EP3901213B1 | B1 | 2025-09-10 | Espacenet |
| CN | CN109153840A | A | 2019-01-04 | Espacenet |
| CN | CN109153840B | B | 2021-08-10 | Espacenet |
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| JP | JPWO2018008166A1 | A1 | 2019-04-18 | Espacenet |
| JP | JP6809231B2 | B2 | 2021-01-06 | Espacenet |
| KR | KR20190009786A | A | 2019-01-29 | Espacenet |
| KR | KR102121819B1 | B1 | 2020-06-11 | Espacenet |
| KR | KR102121819B9 | B9 | 2021-11-22 | Espacenet |
| KR | KR20200067939A | A | 2020-06-12 | Espacenet |
| KR | KR102231192B1 | B1 | 2021-03-24 | Espacenet |
| KR | KR20210032568A | A | 2021-03-24 | Espacenet |
| KR | KR102453768B1 | B1 | 2022-10-14 | Espacenet |
| KR | KR102453768B9 | B9 | 2024-08-22 | Espacenet |
| SG | SG11201810930RA | A | 2019-01-30 | Espacenet |
| TW | TW201809156A | A | 2018-03-16 | Espacenet |
| TW | TWI710611B | B | 2020-11-21 | Espacenet |
| TW | TW202115201A | A | 2021-04-16 | Espacenet |
| TW | TWI756878B | B | 2022-03-01 | Espacenet |
| US | US2019100660A1 | A1 | 2019-04-04 | Espacenet |
| US | US10954394B2 | B2 | 2021-03-23 | Espacenet |
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| US | US11732144B2 | B2 | 2023-08-22 | Espacenet |
| WO | WO2018008166A1 | A1 | 2018-01-11 | Espacenet |
Official File Inspection
EPC Art. 128 Public Dossier
Complete European Patent Register Dossier (148 Total Documents)
The full inspection file for Application EP21164217 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.
Recorded Filings & Patent Specifications
Official publication specifications, opposition filings, proprietor replies, and procedural submissions.
European Patent Specification - Granted Patent (B1)
Publication Specification
Date: 2025-09-10
Procedure: Grant
EP3901213B1
Official European Patent Register Full Dossier
Publication Specification
Date: 2025-09-10
Procedure: All Proceedings (Examination & Opposition)
EP21164217
European Search Report (A3)
Publication Specification
Date: 2022-01-12
Procedure: Publication
EP3901213A3
European Patent Application without Search Report (A2)
Publication Specification
Date: 2021-10-27
Procedure: Publication
EP3901213A2
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-08-28
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-08-21
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-07-17
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-07-10
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-07-03
Procedure: Examination
0009250
New entry: Communication of a notice of opposition and request to file observations + time limit
Dossier Filing
Date: 2026-06-24
Procedure: Opposition
EPIDOSNOBS2
Invitation to proprietor to file observations on the notice of opposition
Procedural Step
Date: 2026-06-24
Procedure: Opposition
OBSO
Opposition filed
Dossier Filing
Date: 2026-06-12
Procedure: Opposition
0009260
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-05-01
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-04-24
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-04-17
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-04-10
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-02-06
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-01-30
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-01-23
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-01-16
Procedure: Examination
0009250
(Expected) grant
Dossier Filing
Date: 2025-08-08
Procedure: Grant
0009210
New entry: Payment of fee for grant
Dossier Filing
Date: 2025-08-06
Procedure: Grant
EPIDOSNIGR3
New entry: Payment of fee for publishing/printing
Dossier Filing
Date: 2025-08-06
Procedure: Examination
EPIDOSNIGR5
New entry: Receipt of the translation of the claim(s)
Dossier Filing
Date: 2025-08-06
Procedure: Examination
EPIDOSNIGR7
New entry: Communication of intention to grant a patent
Dossier Filing
Date: 2025-04-29
Procedure: Grant
EPIDOSNIGR1
Intention to grant the patent
Procedural Step
Date: 2025-04-29
Procedure: Grant
IGRA
Change - German title
Dossier Filing
Date: 2025-04-25
Procedure: Examination
0008199TIDE
New entry: Renewal fee paid
Dossier Filing
Date: 2024-11-15
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2024-11-14
Procedure: Examination
RFEE
New entry: Renewal fee paid
Dossier Filing
Date: 2023-11-13
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2023-11-13
Procedure: Examination
RFEE
New entry: Renewal fee paid
Dossier Filing
Date: 2022-11-25
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2022-11-24
Procedure: Examination
RFEE
Amendment by applicant
Dossier Filing
Date: 2022-07-11
Procedure: Examination
EPIDOS ABEX
Change - classification
Dossier Filing
Date: 2021-12-10
Procedure: Examination
0008199IPCL
Publication of search report
Dossier Filing
Date: 2021-12-10
Procedure: Examination
0009013
New entry: Renewal fee paid
Dossier Filing
Date: 2021-11-15
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2021-11-12
Procedure: Examination
RFEE
Publication in section I.1 EP Bulletin
Dossier Filing
Date: 2021-09-24
Procedure: Examination
0009012
Request for examination filed
Dossier Filing
Date: 2021-09-24
Procedure: Examination
0009171
New entry: Renewal fee paid
Dossier Filing
Date: 2021-03-24
Procedure: Examination
EPIDOSNRFE2
Change - representative
Dossier Filing
Date: 2021-03-23
Procedure: Examination
EPIDOS FREP
Renewal fee payment
Procedural Step
Date: 2021-03-23
Procedure: Examination
RFEE
Language of the procedure
Procedural Step
Procedure: Examination
PROL
International searching authority
Procedural Step
Procedure: Examination
ISAT