EP0109505A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A stampable polymeric composite containing an EMI/RFI shielding layer
Assignee: Honeywell International Inc
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Filing: 1983-09-20
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Granted: —
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Expires: 2003-09-20
Abstract
Abstract A stampable thermoplastic composite having at least one thermoplastic layer and at least one shielding layer. The shielding layer comprises a material having an elongation to break of at least 8 percent, and the composite having an EMI/RFI shielding effectiveness of at least 30 db.
Inventors
- 👤 Gina Rachel Kritchevsky
- 👤 John Anthony Gregor
- 👤 Manfred Werner Gruendig
- 👤 Gregory Jude Sellers
- 👤 Barbara Liss
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 07:17
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0073; H05K9/0081; H05K9/0086; B; B29; B29C; B29C51/00; B29C51/14; B29C51/145; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/086; B29C70/88; B29C70/882; B29C70/885; H05K9/009; B29C70/68; B29C70/685; B29C70/687; B29K; B29K2105/00; B29K2105/06; B29K2105/20; B29K2105/206; B29K2995/00; B29K2995/0003; B29K2995/0005; B29K2995/0037; B29K2995/0077
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A stampable thermoplastic composite comprising: at least one thermoplastic layer; and at least one shielding layer, the shielding layer comprising a material having an elongation to break of at least 8 percent. and the composite having an EMI/RFI shielding effectiveness of at least 30 dB.
Claim 2
Dependent Claim
45 words
A stampable thermoplastic composite comprising: at least one thermoplastic layer; and at least one shielding layer, the shielding layer comprising a material having an elongation to break of at least 8 percent. and the composite having an EMI/RFI shielding effectiveness of at least 30 dB.
Claim 3
Dependent Claim
19 words
The stampable thermoplastic composite as recited in claim 1 wherein the shielding layer is adjacent to the thermoplastic layer.
Claim 4
Dependent Claim
19 words
The stampable thermoplastic composite as recited in claim 1 wherein the shielding layer is embedded in the thermoplastic layer.
Claim 5
Dependent Claim
16 words
The stampable thermoplastic composite as recited in claim 1 wherein the thermoplastic layer is a polyamide.
Claim 6
Dependent Claim
14 words
The stampable thermoplastic composite as recited in claim 4 further comprising a reinforcing layer.
Claim 7
Dependent Claim
23 words
The stampable thermoplastic composite as recited in claim 5 wherein the shielding layer is located between the thermoplastic layer and the reinforcing layer.
Claim 8
Dependent Claim
43 words
The stampable thermoplastic composite as recited in claim 6 wherein the reinforcing layer has opposite surfaces and at least one opposite surface adjoins a thermoplastic layer and where there is a shielding layer between at least one thermoplastic layer and the reinforcing layer.
Claim 9
Dependent Claim
24 words
The stampable thermoplastic composite as recited in claim 1 wherein the shielding layer has an elongation to break of from 8 to 250 percent.
Claim 10
Dependent Claim
25 words
The stampable thermoplastic composite as recited in claim 1 wherein the composite has an EMI/RFI shielding effectiveness of from 40 to 75 d B .
Claim 11
Dependent Claim
59 words
The stampable thermoplastic composite as recited in claim 1 wherein the shielding layer is selected from the group consisting of a graphite fiber mat, nickel coated graphite mat, knitted metal wire mesh, tin coated copper clad steel fiber mesh, nonwoven metal fiber mat, perforated metal sheet, metal screen, and at least one layer thermoplastic woven fabric containing metal fiber.
References Cited (Backward Citations)
No citation records indexed.
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