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RESIN COMPOSITION, MOLDED PRODUCT AND METHOD FOR PRODUCING MOLDED PRODUCT

Publication No. EP3904425

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App No. EP19904812

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Filed by MITSUBISHI GAS CHEMICAL COMPANY, INC.

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Filed on 2019-11-29

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Issued/Published on 2025-12-03

Official EPO Register

Publication No. EP3904425 A1

Application No. EP19904812 Filed: 2019-11-29

Grant Date 2025-12-03 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

To provide a polyamide resin composition preventing mold fouling during molding and capable of producing a molded product with an excellent color tone, as well as a molded product, a method for producing a molded product, and an antioxidant. The composition is a resin composition containing: a polyamide resin constituted of diamine-derived constituent units and dicarboxylic acid-derived constituent units, 70 mol% or more of the diamine-derived constituent units being derived from a compound represented by Formula (1), and 70 mol% or more of the dicarboxylic acid-derived constituent units being derived from an α,ω-linear aliphatic dicarboxylic acid having from 8 to 12 carbon atoms; and a compound represented by Formula (1), where R<sup>1</sup> and R<sup>2</sup> each independently represent an alkyl group having from 1 to 4 carbon atoms, and n1 and n2 are each independently an integer from 0 to 4, wherein a content of the compound represented by Formula (1) is from 3 to 100 mass ppm of the resin composition.

IPC Classifications

C08G69/26, C09K15/18, C08K5/17, C08L77/06, C08K5/00, C07C201/00, C07C211/36 C08G69/26, C09K15/18, C08K5/17, C08L77/06, C08K5/00, C07C201/00 C08G69/26, C09K15/18, C08K5/17, C08L77/06

Priority Claims

JP 20180244408 Date: 2018-12-27

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 GAS CHEMICAL COMPANY, INC.

5-2, Marunouchi 2-chome, Chiyoda-ku

Inventors (8)

YAMASHITA, Momoko

c/o MITSUBISHI GAS CHEMICAL COMPANY, INC.,, Hiratsuka Research Laboratory

SATO, Kazuya

c/o MITSUBISHI GAS CHEMICAL COMPANY, INC.,, Hiratsuka Research Laboratory

OGURO, Hatsuki

c/o MITSUBISHI GAS CHEMICAL COMPANY, INC.,, Hiratsuka Research Laboratory

ODA, Takafumi

c/o MITSUBISHI GAS CHEMICAL COMPANY, INC.,, Hiratsuka Research Laboratory

YAMASHITA Momoko

Hiratsuka-shi, Kanagawa 254-0016

SATO Kazuya

Hiratsuka-shi, Kanagawa 254-0016

OGURO Hatsuki

Hiratsuka-shi, Kanagawa 254-0016

ODA Takafumi

Hiratsuka-shi, Kanagawa 254-0016

Representatives / Agents

Vossius & Partner Patentanwälte Rechtsanwälte mbB

Siebertstraße 3, 81675 München

Bremi, Tobias Hans

Isler & Pedrazzini AG, Giesshübelstrasse 45

Key Procedural Dates

Request-For-Examination 2021-07-26

Mention Of Grant Published 2025-12-03

First-Examination-Report-Despatched 2025-06-02

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

54 Events Recorded

Date	Code	Event Description	Auth
2020-07-04	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2021-10-01	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2021-10-01	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2021-11-03	17P	REQUEST FOR EXAMINATION FILED	EP
2021-11-03	AK	DESIGNATED CONTRACTING STATES	EP
2022-03-09	RIC1	INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT	EP
2022-03-09	A4	SUPPLEMENTARY SEARCH REPORT DRAWN UP AND DESPATCHED	EP
2022-04-06	DAX	REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (DELETED)	EP
2022-04-06	DAV	REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (DELETED)	EP
2025-06-11	RIC1	INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT	EP
2025-06-01	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-06-01	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-07-02	RIN1	INFORMATION ON INVENTOR PROVIDED BEFORE GRANT (CORRECTED)	EP
2025-07-02	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-09-09	GRAJ	INFORMATION RELATED TO DISAPPROVAL OF COMMUNICATION OF INTENTION TO GRANT BY THE APPLICANT OR RESUMPTION OF EXAMINATION PROCEEDINGS BY THE EPO DELETED	EP
2025-09-09	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-09-27	GRAS	GRANT FEE PAID	EP
2025-09-27	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-10-01	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-10-15	P01	OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED	EP
2025-10-15	INTC	INTENTION TO GRANT ANNOUNCED (DELETED)	EP
2025-10-31	GRAA	(EXPECTED) GRANT	EP
2025-10-31	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-11-05	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-12-03	AK	DESIGNATED CONTRACTING STATES	EP
2025-12-03	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-05	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-18	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-31	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-10	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-10	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-08	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-13	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
2026-04-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-24	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
2026-04-30	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-05-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-05-18	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-06-29	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-03	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-10	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-18	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-21	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-25	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-09-11	PLBI	OPPOSITION FILED	EP
2026-09-17	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-09-16	REG	REFERENCE TO A NATIONAL CODE	EP
2026-09-03	REG	REFERENCE TO A NATIONAL CODE	EP
2026-10-14	26	OPPOSITION FILED	EP

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

22 Citations

Cited Patent Documents

US2017002144 2017-01-05

Espacenet

US2003235666 2003-12-25

Espacenet

EP0725101 2996-08-07

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EP1369447 2003-12-10

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WO2015091447 2015-06-25

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EP2746341 2014-06-25

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WO0078869 2000-12-28

Espacenet

WO2014151735 2014-09-25

Espacenet

Non-Patent Scientific Literature (NPL)

- M.I. KOHAN: "Nylon plastics handbook : with 169 tables", 1 January 1995, M.I. KOHAN , Munich, DE , ISBN: 3-446-17048-0, article ROLANDO U. PAGILAGAN: "Chapter 3: Chemistry", pages: 33 - 67, XP009568837

- ANONYMOUS: "Schulz-Flory-Verteilung – Wikipedia", WIKIPEDIA, WIKIPEDIA, 27 July 2024 (2024-07-27), pages 1 - 3, XP093436195, Retrieved from the Internet <URL:https://de.wikipedia.org/w/index.php?title=Schulz-Flory-Verteilung&oldid=247142045>

- MCNEELEY ADAM, LIU Y. A.: "Assessment of Nylon-66 Depolymerization for Circular Economy: Kinetic Modeling, Purification, and Sustainable Design", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 64, no. 8, 26 February 2025 (2025-02-26), pages 4179 - 4203, XP093436198, ISSN: 0888-5885, DOI: 10.1021/acs.iecr.4c04411

- MCNEELEY ADAM, LIU Y. A.: "Assessment of Nylon-66 Depolymerization for Circular Economy: Kinetic Modeling, Purification, and Sustainable Design - Supporting Information", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, AMERICAN CHEMICAL SOCIETY (ACS), 26 February 2025 (2025-02-26), pages 1 - 12, XP093436203, Retrieved from the Internet <URL:https://pubs.acs.org/iecred/article/64/8/4179/3812764/Assessment-of-Nylon-66-Depolymerization-for> DOI: 10.1021/acs.iecr.4c04411

- D3 - FDA_test report_TR 90

- D4 - Bestätigung Grilamid TR 90 natural FDA Food Contact Notification

- FDA: "Inventory of Effective Food Contact Substance (FCS) Notifications - FCN No. 883 EMS-Chemie AG", FDA, FDA, 31 August 2026 (2026-08-31), pages 1 - 2, XP093436216, Retrieved from the Internet <URL:https://www.hfpappexternal.fda.gov/scripts/fdcc/index.cfm?set=FCN&id=883&sort=Sort_FCS&order=DESC&startrow=1&type=basic&search=883>

- D6 - Lieferbestätigung MACM12 an die Firma Visual Optical System SPA

- D7 - Qualitätszertifikat des Materials gem. D6 mit Chargennachweis

- D8 - Lieferbestätigung MACM12 an die Firma Lenti SRL

- D9 - Qualitätszertifikat des Materials gem. D8 mit Chargennachweis

- D10 - Übersicht über die Bestellungen mit Chargennummern

- D11 - Bestätigung Chargenbezeichnungen

- D12 - Bestätigung Produktbezeichnungen

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

12 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP3904425A1	A1	2021-11-03	Espacenet
EP	EP3904425A4	A4	2022-03-09	Espacenet
EP	EP3904425B1	B1	2025-12-03	Espacenet
CN	CN113227203A	A	2021-08-06	Espacenet
CN	CN113227203B	B	2022-04-15	Espacenet
JP	JP6699817B1	B1	2020-05-27	Espacenet
JP	JPWO2020137350A1	A1	2021-02-18	Espacenet
TW	TW202033610A	A	2020-09-16	Espacenet
TW	TWI724675B	B	2021-04-11	Espacenet
US	US2022073679A1	A1	2022-03-10	Espacenet
US	US12037455B2	B2	2024-07-16	Espacenet
WO	WO2020137350A1	A1	2020-07-02	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP19904812 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.

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RESIN COMPOSITION, MOLDED PRODUCT AND METHOD FOR PRODUCING MOLDED PRODUCT

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (38 EPC States)

Parties & Representation

Applicants

Inventors (8)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

EMS-CHEMIE AG

Legal Status & Event History

Patent & Non-Patent Citations

Cited Patent Documents

Non-Patent Scientific Literature (NPL)

Worldwide Patent Family

Complete European Patent Register Dossier (148 Total Documents)

Recorded Filings & Patent Specifications

European Patent Specification - Granted Patent (B1)

Official European Patent Register Full Dossier

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