EP4058405A4 - Electromagnetic interference shielding composition, article and methods thereof - Google Patents
Electromagnetic interference shielding composition, article and methods thereof Download PDFInfo
- Publication number
- EP4058405A4 EP4058405A4 EP20887102.0A EP20887102A EP4058405A4 EP 4058405 A4 EP4058405 A4 EP 4058405A4 EP 20887102 A EP20887102 A EP 20887102A EP 4058405 A4 EP4058405 A4 EP 4058405A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- article
- methods
- electromagnetic interference
- interference shielding
- shielding composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/198—Graphene oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN201911046464 | 2019-11-14 | ||
PCT/IB2020/050030 WO2021094836A1 (en) | 2019-11-14 | 2020-01-03 | Electromagnetic interference shielding composition, article and methods thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4058405A1 EP4058405A1 (en) | 2022-09-21 |
EP4058405A4 true EP4058405A4 (en) | 2023-11-29 |
Family
ID=75911874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20887102.0A Pending EP4058405A4 (en) | 2019-11-14 | 2020-01-03 | Electromagnetic interference shielding composition, article and methods thereof |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4058405A4 (en) |
WO (1) | WO2021094836A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114286612A (en) * | 2021-12-24 | 2022-04-05 | 中钢集团南京新材料研究院有限公司 | Electromagnetic shielding material, preparation method thereof and coating |
CN114479435A (en) * | 2021-12-30 | 2022-05-13 | 昆山科运新型工程材料科技有限公司 | Preparation method of electromagnetic shielding magnetic-conducting polymer alloy and product thereof |
-
2020
- 2020-01-03 WO PCT/IB2020/050030 patent/WO2021094836A1/en unknown
- 2020-01-03 EP EP20887102.0A patent/EP4058405A4/en active Pending
Non-Patent Citations (5)
Title |
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CHEN CHUN-YU ET AL: "Remarkable microwave absorption performance of graphene at a very low loading ratio", COMPOSITES PART B, ELSEVIER, AMSTERDAM, NL, vol. 114, 16 February 2017 (2017-02-16), pages 395 - 403, XP029986059, ISSN: 1359-8368, DOI: 10.1016/J.COMPOSITESB.2017.02.016 * |
GUPTA SHIVAM ET AL: "Carbon materials and their composites for electromagnetic interference shielding effectiveness in X-band", CARBON, ELSEVIER OXFORD, GB, vol. 152, 3 June 2019 (2019-06-03), pages 159 - 187, XP085769546, ISSN: 0008-6223, [retrieved on 20190603], DOI: 10.1016/J.CARBON.2019.06.002 * |
See also references of WO2021094836A1 * |
YADAV RAGHVENDRA SINGH ET AL: "Lightweight NiFe2O4-Reduced Graphene Oxide-Elastomer Nanocomposite flexible sheet for electromagnetic interference shielding application", COMPOSITES PART B, vol. 166, 1 June 2019 (2019-06-01), AMSTERDAM, NL, pages 95 - 111, XP055823689, ISSN: 1359-8368, DOI: 10.1016/j.compositesb.2018.11.069 * |
YANG JIANMING ET AL: "Light-weight and flexible silicone rubber/MWCNTs/Fe3O4 nanocomposite foams for efficient electromagnetic interference shielding and microwave absorption", COMPOSITES SCIENCE AND TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 181, 8 September 2019 (2019-09-08), XP085730972, ISSN: 0266-3538, [retrieved on 20190531], DOI: 10.1016/J.COMPSCITECH.2019.05.027 * |
Also Published As
Publication number | Publication date |
---|---|
WO2021094836A1 (en) | 2021-05-20 |
EP4058405A1 (en) | 2022-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20220113 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): 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 |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20231030 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C08K 3/22 20060101ALI20231024BHEP Ipc: C08K 3/04 20060101ALI20231024BHEP Ipc: C08G 77/04 20060101ALI20231024BHEP Ipc: C08L 83/04 20060101ALI20231024BHEP Ipc: H05K 9/00 20060101ALI20231024BHEP Ipc: C01B 32/198 20170101ALI20231024BHEP Ipc: B82Y 30/00 20110101ALI20231024BHEP Ipc: C01B 32/158 20170101AFI20231024BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |