Patent US4559891A successfully refreshed from Google Patents.
US5384181A
Expired / Lapsed
US
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Low volume fraction ceramic filled fluoropolymeric composite material
Assignee: World Properties Inc
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Filing: 1993-10-05
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Granted: 1995-01-24
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Expires: 2013-10-05
Abstract
Abstract A composite material is presented comprised of a ceramic filled fluoropolymer wherein the ceramic is coated with a silane and the ceramic has a volume % fraction of between about 26-45. The composite of this invention exhibits excellent chemical resistance, particularly to alkaline environments. Preferably, the silane comprises a blend of at least one phenyl silane and at least one fluorosilane. The silane is preferably coated to a level of 10% of the total weight of ceramic filler.
Inventors
- 👤 David J. Arthur
- 👤 Gwo S. Swei
- 👤 Allen F. Horn, III
- 👤 Brett Kilhenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:32
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0373; C; C08; C08K; C08K9/00; C08K9/04; C08K9/06; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; H01B3/445; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W70/695; H05K1/032; H05K1/034; H05K1/0366; H05K1/05; H05K1/056; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/015; H05K2201/0183; H05K2201/0195; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0209; H05K2201/0239; H05K2201/0242; H05K2201/0251; H05K2201/06; H05K2201/068; H05K3/00; H05K3/38; H05K3/389; H05K3/46; H05K3/4611; H05K3/4626; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/25; Y10T428/252; Y10T428/259; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
51 words
An electrical substrate material comprising: fluoropolymeric material; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total substrate material; and said ceramic filler being coated by a silane coating.
Claim 2
Dependent Claim
51 words
An electrical substrate material comprising: fluoropolymeric material; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total substrate material; and said ceramic filler being coated by a silane coating.
Claim 3
Dependent Claim
25 words
The material of claim 1 including: at least one layer of conductive material being disposed on at least a portion of said electrical substrate material.
Claim 4
Dependent Claim
24 words
The material of claim 1 wherein said fluoropolymeric material is selected from the group comprising: polytetrafluoroethylene, hexa fluoropropene, tetrafluoroethylene or perfluoro alkyl vinyl ether.
Claim 5
Dependent Claim
51 words
The material of claim 1 wherein said silane coating is selected from the group comprising: p-chloromethyl phenyl trimethoxy silane, amino ethyl amino trimethoxy silane, a mixture of phenyl trimethoxy silane and amino ethyl amino propyl trimethoxy silane, fluorosilane and a blend of at least one fluorosilane and at least one phenylsilane.
Claim 6
Dependent Claim
30 words
The material of claim 1 wherein said silane coating is in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 7
Dependent Claim
22 words
The material of claim 5 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 8
Dependent Claim
11 words
The material of claim 1 wherein: said conductive material comprises metal.
Claim 9
Dependent Claim
80 words
In a multilayer circuit including at least a first circuit layer and a second circuit layer, the improvement comprising: an adhesive layer sandwiched between the first and second circuit layers, said adhesive layer comprising; fluoropolymeric material; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total adhesive layer; and said ceramic filler being coated with a silane coating.
Claim 10
Dependent Claim
80 words
In a multilayer circuit including at least a first circuit layer and a second circuit layer, the improvement comprising: an adhesive layer sandwiched between the first and second circuit layers, said adhesive layer comprising; fluoropolymeric material; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total adhesive layer; and said ceramic filler being coated with a silane coating.
Claim 11
Dependent Claim
13 words
The multilayer circuit of claim 8 including: at least one plated through hole.
Claim 12
Dependent Claim
25 words
The multilayer circuit of claim 8 wherein said fluoropolymeric material is selected from the group comprising: polytetrafluoroethylene, hexa fluoropropene, tetrafluoroethylene or perfluoro alkyl vinyl ether.
Claim 13
Dependent Claim
51 words
The multilayer circuit of claim 8 wherein said silane coating is selected from the group comprising: p-chloromethyl phenyl trimethoxy silane, amino ethyl amino trimethoxy silane, a mixture of phenyl trimethoxy silane, amino ethyl amino propyl trimethoxy silane, fluorosilane and a blend of at least one fluorosilane and at least one phenylsilane.
Claim 14
Dependent Claim
30 words
The material of claim 8 wherein said silane coating is in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 15
Dependent Claim
22 words
The material of claim 12 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 16
Dependent Claim
11 words
The material of claim 8 wherein: said conductive material comprises metal.
Claim 17
Dependent Claim
69 words
An article comprising: a substrate, said substrate having at least one opening at least partially through said substrate; a composite material in said at least one opening, said composite material including; fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total composite material; and said ceramic filler being coated by a silane coating.
Claim 18
Dependent Claim
69 words
An article comprising: a substrate, said substrate having at least one opening at least partially through said substrate; a composite material in said at least one opening, said composite material including; fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total composite material; and said ceramic filler being coated by a silane coating.
Claim 19
Dependent Claim
24 words
The article of claim 15 wherein said fluoropolymeric material is selected from the group comprising: polytetrafluoroethylene, hexa fluoropropene, tetrafluoroethylene or perfluoro alkyl vinyl ether.
Claim 20
Dependent Claim
11 words
The article of claim 15 wherein said ceramic filler comprises silica.
Claim 21
Dependent Claim
51 words
The article of claim 15 wherein said silane coating is selected from the group comprising: p-chloromethyl phenyl trimethoxy silane, amino ethyl amino trimethoxy silane, a mixture of phenyl trimethoxy silane and amino ethyl amino propyl trimethoxy silane, fluorosilane and a blend of at least one fluorosilane and at least one phenylsilane.
Claim 22
Dependent Claim
30 words
The article of claim 15 wherein said silane coating is in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 23
Dependent Claim
22 words
The article of claim 19 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 24
Dependent Claim
11 words
The material of claim 15 wherein: said conductive material comprises metal.
Claim 25
Dependent Claim
12 words
The article of claim 15 wherein: said substrate comprises a rigid substrate.
Claim 26
Dependent Claim
13 words
The article of claim 15 wherein: said composite material completely surrounds said substrate.
Claim 27
Dependent Claim
63 words
An electrical substrate material comprising: fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 volume percent of the total substrate material; and said ceramic filler being coated by a silane coating, said silane coating being in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 28
Dependent Claim
63 words
An electrical substrate material comprising: fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 volume percent of the total substrate material; and said ceramic filler being coated by a silane coating, said silane coating being in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 29
Dependent Claim
22 words
The material of claim 24 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 30
Dependent Claim
11 words
The material of claim 7 wherein: said ceramic filler comprises silica.
Claim 31
Dependent Claim
12 words
The material of claim 26 wherein: said silica comprises fused amorphous silica.
Claim 32
Dependent Claim
92 words
In a multilayer circuit including at least a first circuit layer and a second circuit layer, the improvement comprising: an adhesive layer sandwiched between the first and second circuit layers, said adhesive layer comprising: fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 volume percent of the total adhesive layer; and said ceramic filler being coated with a silane coating, said silane coating being in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 33
Dependent Claim
92 words
In a multilayer circuit including at least a first circuit layer and a second circuit layer, the improvement comprising: an adhesive layer sandwiched between the first and second circuit layers, said adhesive layer comprising: fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 volume percent of the total adhesive layer; and said ceramic filler being coated with a silane coating, said silane coating being in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 34
Dependent Claim
22 words
The material of claim 28 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 35
Dependent Claim
12 words
The multilayer circuit of claim 26 wherein: said ceramic filler comprises silica.
Claim 36
Dependent Claim
13 words
The multilayer circuit of claim 30 wherein: said silica comprises fused amorphous silica.
Claim 37
Dependent Claim
91 words
An article comprising: a rigid substrate, said rigid substrate having at least one opening at least partially through said substrate; a composite material in said at least one opening, said composite material including; fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 volume percent of the total composite material; and said ceramic filler being coated by a silane coating, said silane coating being in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 38
Dependent Claim
91 words
An article comprising: a rigid substrate, said rigid substrate having at least one opening at least partially through said substrate; a composite material in said at least one opening, said composite material including; fluoropolymeric material; ceramic filler material, said filler material being in an amount of at least about 26 volume percent of the total composite material; and said ceramic filler being coated by a silane coating, said silane coating being in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 39
Dependent Claim
22 words
The material of claim 32 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 40
Dependent Claim
11 words
The article of claim 30 wherein: said ceramic filler comprises silica.
Claim 41
Dependent Claim
12 words
The article of claim 34 wherein: said silica comprises fused amorphous silica.
Claim 42
Dependent Claim
71 words
An electrical substrate material comprising: fluoropolymeric material, said fluoropolymeric material comprising polytetrafluoroethylene; fused amorphous silica particulate filler material, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total substrate material; said fused amorphous silica filler being coated by a silane coating; and at least one layer of metal being disposed on at least a portion of said electrical substrate material.
Claim 43
Dependent Claim
71 words
An electrical substrate material comprising: fluoropolymeric material, said fluoropolymeric material comprising polytetrafluoroethylene; fused amorphous silica particulate filler material, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total substrate material; said fused amorphous silica filler being coated by a silane coating; and at least one layer of metal being disposed on at least a portion of said electrical substrate material.
Claim 44
Dependent Claim
10 words
The material of claim 36 wherein said metal comprises copper.
Claim 45
Dependent Claim
77 words
An article comprising: a substrate, said substrate having at least one opening at least partially through said substrate; a composite material in said at least one opening, said composite material including; fluoropolymeric material; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total composite material; and said ceramic filler being coated by a silane coating.
Claim 46
Dependent Claim
77 words
An article comprising: a substrate, said substrate having at least one opening at least partially through said substrate; a composite material in said at least one opening, said composite material including; fluoropolymeric material; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total composite material; and said ceramic filler being coated by a silane coating.
Claim 47
Dependent Claim
24 words
The material of claim 38 wherein said fluoropolymeric material is selected from the group comprising: polytetrafluoroethylene, hexa fluoropropene, tetrafluoroethylene or perfluoro alkyl vinyl ether.
Claim 48
Dependent Claim
51 words
The material of claim 38 wherein said silane coating is selected from the group comprising: p-chloromethyl phenyl trimethoxy silane, amino ethyl amino trimethoxy silane, a mixture of phenyl trimethoxy silane and amino ethyl amino propyl trimethoxy silane, fluorosilane and a blend of at least one fluorosilane and at least one phenylsilane.
Claim 49
Dependent Claim
30 words
The material of claim 38 wherein said silane coating is in an amount of greater than 2 to about 10 weight percent relative to the weight of the ceramic filler.
Claim 50
Dependent Claim
22 words
The material of claim 41 wherein: said silane coating comprises a blend of at least one fluorosilane and at least one phenylsilane.
Claim 51
Dependent Claim
12 words
The article of claim 38 wherein: said substrate comprises a rigid substrate.
Claim 52
Dependent Claim
13 words
The article of claim 38 wherein: said composite material completely surrounds said substrate.
Claim 53
Dependent Claim
87 words
An article comprising: a substrate, said substrate having a plurality of openings through said substrate; a composite material in said openings, said composite material including; fluoropolymeric material, said fluoropolymeric material comprising polytetrafluoroethylene; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total composite material; said ceramic filler being coated by a silane coating; and said composite material filling said openings and completely surrounding said substrate.
Claim 54
Dependent Claim
87 words
An article comprising: a substrate, said substrate having a plurality of openings through said substrate; a composite material in said openings, said composite material including; fluoropolymeric material, said fluoropolymeric material comprising polytetrafluoroethylene; ceramic filler material, said ceramic filler material including fused amorphous silica, said filler material being in an amount of at least about 26 to less than 45 volume percent of the total composite material; said ceramic filler being coated by a silane coating; and said composite material filling said openings and completely surrounding said substrate.
References Cited (Backward Citations)
US2539329A
Cited
US3025185A
Cited
US3421972A
Cited
US3787281A
Cited
US4036807A
Cited
US4335180A
Cited
US4337155A
Cited
JPS57134806A
Cited
US4513055A
Cited
US4647508A
Cited
US4725504A
Cited
US4886699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-23 | 1998-07-25 | 1999-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-23 | 2002-07-25 | 2003-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-23 | 2006-07-25 | 2007-01-24 | $7700.00 | Window Closed / Lapsed |