CA2005198A1 - Absorbeur de micro-ondes a filaments metalliques magnetiques aciculaires - Google Patents

Absorbeur de micro-ondes a filaments metalliques magnetiques aciculaires

Info

Publication number: CA2005198A1
Authority: CA; Canada
Prior art keywords: absorber; filaments; conductor; binder; micron
Prior art date: 1989-01-26
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.): Abandoned

Application number

CA 2005198

Other languages

English (en)

Inventor

Charles E. Boyer, Iii

Eric J. Borchers

Richard J. Kuo

Charles D. Hoyle

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

3M Co

Original Assignee

Minnesota Mining and Manufacturing Co

Priority date (The priority date 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 date listed.)

1989-01-26

Filing date

1989-12-12

Publication date

1990-07-26

1989-12-12 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1990-07-26 Publication of CA2005198A1 publication Critical patent/CA2005198A1/fr

Status Abandoned legal-status Critical Current

Links

239000006096 absorbing agent Substances 0.000 title claims abstract description 44
230000005291 magnetic effect Effects 0.000 title claims abstract description 16
239000011230 binding agent Substances 0.000 claims abstract description 37
238000010521 absorption reaction Methods 0.000 claims abstract description 21
239000003973 paint Substances 0.000 claims abstract description 21
239000000463 material Substances 0.000 claims abstract description 16
239000007788 liquid Substances 0.000 claims abstract description 9
239000006100 radiation absorber Substances 0.000 claims abstract description 8
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
239000004020 conductor Substances 0.000 claims description 16
229910052742 iron Inorganic materials 0.000 claims description 14
239000000203 mixture Substances 0.000 claims description 13
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 11
238000011068 loading method Methods 0.000 claims description 9
-1 polyethylenes Polymers 0.000 claims description 9
238000000034 method Methods 0.000 claims description 8
229920000642 polymer Polymers 0.000 claims description 8
229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
230000005855 radiation Effects 0.000 claims description 8
239000000049 pigment Substances 0.000 claims description 6
239000000853 adhesive Substances 0.000 claims description 5
230000001070 adhesive effect Effects 0.000 claims description 5
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
239000004698 Polyethylene Substances 0.000 claims description 3
239000004743 Polypropylene Substances 0.000 claims description 3
239000000956 alloy Substances 0.000 claims description 3
229910045601 alloy Inorganic materials 0.000 claims description 3
229940043232 butyl acetate Drugs 0.000 claims description 3
239000000919 ceramic Substances 0.000 claims description 3
FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
229920000573 polyethylene Polymers 0.000 claims description 3
229920001155 polypropylene Polymers 0.000 claims description 3
229920002301 cellulose acetate Polymers 0.000 claims description 2
239000011248 coating agent Substances 0.000 claims description 2
238000000576 coating method Methods 0.000 claims description 2
239000010941 cobalt Substances 0.000 claims description 2
229910017052 cobalt Inorganic materials 0.000 claims description 2
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
229910052759 nickel Inorganic materials 0.000 claims description 2
229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
229920001169 thermoplastic Polymers 0.000 claims description 2
229920001187 thermosetting polymer Polymers 0.000 claims description 2
239000004634 thermosetting polymer Substances 0.000 claims description 2
150000003673 urethanes Chemical class 0.000 claims description 2
238000004519 manufacturing process Methods 0.000 claims 1
230000005670 electromagnetic radiation Effects 0.000 abstract description 3
239000011888 foil Substances 0.000 abstract description 3
239000002131 composite material Substances 0.000 description 19
238000005259 measurement Methods 0.000 description 10
ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
230000035699 permeability Effects 0.000 description 8
238000009472 formulation Methods 0.000 description 6
239000002245 particle Substances 0.000 description 6
229910052782 aluminium Inorganic materials 0.000 description 5
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
239000000835 fiber Substances 0.000 description 5
229910052751 metal Inorganic materials 0.000 description 5
239000002184 metal Substances 0.000 description 5
230000004044 response Effects 0.000 description 5
VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
229920000728 polyester Polymers 0.000 description 4
229920002635 polyurethane Polymers 0.000 description 4
239000004814 polyurethane Substances 0.000 description 4
238000010276 construction Methods 0.000 description 3
230000007423 decrease Effects 0.000 description 3
239000006185 dispersion Substances 0.000 description 3
229920001971 elastomer Polymers 0.000 description 3
239000012212 insulator Substances 0.000 description 3
239000011159 matrix material Substances 0.000 description 3
238000003801 milling Methods 0.000 description 3
238000002156 mixing Methods 0.000 description 3
229920001084 poly(chloroprene) Polymers 0.000 description 3
229920003051 synthetic elastomer Polymers 0.000 description 3
239000005061 synthetic rubber Substances 0.000 description 3
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
239000004593 Epoxy Substances 0.000 description 2
244000043261 Hevea brasiliensis Species 0.000 description 2
239000002202 Polyethylene glycol Substances 0.000 description 2
235000021355 Stearic acid Nutrition 0.000 description 2
230000005540 biological transmission Effects 0.000 description 2
238000003490 calendering Methods 0.000 description 2
230000003247 decreasing effect Effects 0.000 description 2
AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 2
238000009826 distribution Methods 0.000 description 2
238000001035 drying Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
229920006226 ethylene-acrylic acid Polymers 0.000 description 2
235000010299 hexamethylene tetramine Nutrition 0.000 description 2
239000004312 hexamethylene tetramine Substances 0.000 description 2
239000002480 mineral oil Substances 0.000 description 2
235000010446 mineral oil Nutrition 0.000 description 2
229920003052 natural elastomer Polymers 0.000 description 2
229920001194 natural rubber Polymers 0.000 description 2
QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
229920001223 polyethylene glycol Polymers 0.000 description 2
229920000915 polyvinyl chloride Polymers 0.000 description 2
230000009467 reduction Effects 0.000 description 2
239000005060 rubber Substances 0.000 description 2
238000004626 scanning electron microscopy Methods 0.000 description 2
239000002904 solvent Substances 0.000 description 2
239000008117 stearic acid Substances 0.000 description 2
KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 2
229960002447 thiram Drugs 0.000 description 2
UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
229910000599 Cr alloy Inorganic materials 0.000 description 1
239000004952 Polyamide Substances 0.000 description 1
239000004793 Polystyrene Substances 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
239000011358 absorbing material Substances 0.000 description 1
238000013019 agitation Methods 0.000 description 1
150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
229920000180 alkyd Polymers 0.000 description 1
150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
238000007630 basic procedure Methods 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
239000006229 carbon black Substances 0.000 description 1
239000000788 chromium alloy Substances 0.000 description 1
UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
238000013461 design Methods 0.000 description 1
150000001993 dienes Chemical class 0.000 description 1
239000002270 dispersing agent Substances 0.000 description 1
239000000806 elastomer Substances 0.000 description 1
125000003700 epoxy group Chemical group 0.000 description 1
QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical compound C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 description 1
230000001747 exhibiting effect Effects 0.000 description 1
238000001125 extrusion Methods 0.000 description 1
239000003302 ferromagnetic material Substances 0.000 description 1
239000012467 final product Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
239000010439 graphite Substances 0.000 description 1
229910002804 graphite Inorganic materials 0.000 description 1
238000000227 grinding Methods 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
238000007689 inspection Methods 0.000 description 1
230000003993 interaction Effects 0.000 description 1
UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
239000004005 microsphere Substances 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000010422 painting Methods 0.000 description 1
229920000058 polyacrylate Polymers 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
229920000647 polyepoxide Polymers 0.000 description 1
229920001296 polysiloxane Polymers 0.000 description 1
229920002223 polystyrene Polymers 0.000 description 1
239000004800 polyvinyl chloride Substances 0.000 description 1
230000002028 premature Effects 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
230000008569 process Effects 0.000 description 1
LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
239000004576 sand Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
238000005507 spraying Methods 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
239000000758 substrate Substances 0.000 description 1
229920003002 synthetic resin Polymers 0.000 description 1
239000000057 synthetic resin Substances 0.000 description 1
239000003981 vehicle Substances 0.000 description 1
229910000859 α-Fe Inorganic materials 0.000 description 1

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/005—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using woven or wound filaments; impregnated nets or clothes

Landscapes

Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Paints Or Removers (AREA)
Laminated Bodies (AREA)

CA 2005198 1989-01-26 1989-12-12 Absorbeur de micro-ondes a filaments metalliques magnetiques aciculaires Abandoned CA2005198A1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US30242789A	1989-01-26	1989-01-26
US07/302,427		1989-01-26

Publications (1)

Publication Number	Publication Date
CA2005198A1 true CA2005198A1 (fr)	1990-07-26

Family

ID=23167694

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 2005198 Abandoned CA2005198A1 (fr)	1989-01-26	1989-12-12	Absorbeur de micro-ondes a filaments metalliques magnetiques aciculaires

Country Status (5)

Country	Link
EP (1)	EP0380267B1 (fr)
JP (1)	JPH02235396A (fr)
AU (1)	AU615817B2 (fr)
CA (1)	CA2005198A1 (fr)
DE (1)	DE69004109T2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5275880A (en) *	1989-05-17	1994-01-04	Minnesota Mining And Manufacturing Company	Microwave absorber for direct surface application
IT1230281B (it) *	1989-06-15	1991-10-18	Sits Soc It Telecom Siemens	Procedimento per la realizzazione di assorbitori per campi elettromagnetici.
US4972058A (en) *	1989-12-07	1990-11-20	E. I. Du Pont De Nemours And Company	Surface heating food wrap with variable microwave transmission
JPH0935927A (ja) *	1995-07-20	1997-02-07	Tokin Corp	複合磁性体及びそれを用いた電磁干渉抑制体
DE19756620A1 (de)	1997-12-19	1999-06-24	Bosch Gmbh Robert	Verfahren zur Herstellung eines Absorbermaterials
ES2274674B1 (es) *	2004-12-24	2008-04-16	Micromag 2000, S.L.	Absorbedor de radiacion electromagnetica basado en microhilos magneticos.
DE102007011590B4 (de) *	2007-03-08	2008-12-04	Genesis Adaptive Systeme Deutschland Gmbh	Materialverbund für die EMV-Abschirmung
CN105670370B (zh) *	2016-01-04	2017-11-03	北京环境特性研究所	一种毛条型宽频隐身材料
CN110854545B (zh) *	2019-10-29	2021-03-16	南京邮电大学	一种基于水银热胀冷缩调控的频带转移吸波器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4538151A (en) *	1982-03-31	1985-08-27	Nippon Electric Co., Ltd.	Electro-magnetic wave absorbing material
US4507224A (en) *	1982-12-03	1985-03-26	Agency Of Industrial Science & Technology	Ceramics containing fibers of silicon carbide
DE3381770D1 (de) *	1983-11-07	1990-08-30	Dow Chemical Co	Absorptionszusammensetzungen niedriger dichte fuer elektromagnetische strahlung.
US4606848A (en) *	1984-08-14	1986-08-19	The United States Of America As Represented By The Secretary Of The Army	Radar attenuating paint
EP0278458A3 (fr) *	1987-02-10	1989-12-06	Buchtal Gesellschaft mit beschränkter Haftung	Elément céramique non emaillé, conducteur électrique en forme de plaque

1989
- 1989-12-12 CA CA 2005198 patent/CA2005198A1/fr not_active Abandoned
- 1989-12-21 AU AU47088/89A patent/AU615817B2/en not_active Ceased
1990
- 1990-01-22 DE DE1990604109 patent/DE69004109T2/de not_active Expired - Fee Related
- 1990-01-22 EP EP19900300632 patent/EP0380267B1/fr not_active Expired - Lifetime
- 1990-01-25 JP JP2015928A patent/JPH02235396A/ja active Pending

Also Published As

Publication number	Publication date
JPH02235396A (ja)	1990-09-18
DE69004109T2 (de)	1994-05-11
EP0380267B1 (fr)	1993-10-27
DE69004109D1 (de)	1993-12-02
AU4708889A (en)	1990-08-02
AU615817B2 (en)	1991-10-10
EP0380267A1 (fr)	1990-08-01

Legal Events

Date	Code	Title	Description
1996-11-06	EEER	Examination request
2000-05-01	FZDE	Dead

Publication	Publication Date	Title
US5085931A (en)	1992-02-04	Microwave absorber employing acicular magnetic metallic filaments
US5389434A (en)	1995-02-14	Electromagnetic radiation absorbing material employing doubly layered particles
US5189078A (en)	1993-02-23	Microwave radiation absorbing adhesive
US5238975A (en)	1993-08-24	Microwave radiation absorbing adhesive
CN102449050B (zh)	2013-12-25	电磁场吸收组合物
US5275880A (en)	1994-01-04	Microwave absorber for direct surface application
US4503284A (en)	1985-03-05	RF Suppressing magnet wire
US4538151A (en)	1985-08-27	Electro-magnetic wave absorbing material
WO2017221992A1 (fr)	2017-12-28	Feuille d'absorption d'ondes électriques
EP0380267B1 (fr)	1993-10-27	Matériau absorbant les micro-ondes contenant des filaments aciculaires métalliques et magnétiques
Jani et al.	2017	Tuning of microwave absorption properties and electromagnetic interference (EMI) shielding effectiveness of nanosize conducting black-silicone rubber composites over 8-18 GHZ
US5952953A (en)	1999-09-14	Wave absorber
US6037400A (en)	2000-03-14	Composition for prevention of electric wave in wide range and electric wave absorber coping with all directions using same
KR20090127160A (ko)	2009-12-09	전자파 간섭 억제 시트, 고주파 신호용 플랫 케이블, 연성 인쇄 기판 및 전자파 간섭 억제 시트의 제조 방법
US20020171578A1 (en)	2002-11-21	Non-skid, radar absorbing system, its method of making, and method of use
JPS6312198A (ja)	1988-01-19	電波吸収電磁シ−ルド材料
EP0479438B1 (fr)	1997-04-02	Matériau absorbant les ondes électromagnétiques à particules à double enrobage
KR100923210B1 (ko)	2009-10-27	전파 흡수체
Soh et al.	2003	A study on millimeter‐wave absorber coating for V band and W band
JPH1027986A (ja)	1998-01-27	電波吸収体
KR101820942B1 (ko)	2018-01-22	극저주파대 자기장 차폐재 및 이의 제조방법
Nagasree et al.	2019	Polymer based MWCNT/nickel zinc ferritenanocomposites for RAS application with simulation
JPH08172292A (ja)	1996-07-02	ゴム系電波吸収材料
GB2325568A (en)	1998-11-25	Radiation absorbent fluid
Przybył et al.	2022	Defence Technology