Patent CA847849A successfully refreshed from Google Patents.
US4965296A
Expired / Lapsed
US
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Intumescent fire-retardant and electrically-conductive coating material
Assignee: SAFE-TECH HOLDINGS LLC
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Filing: 1989-11-06
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Granted: 1990-10-23
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Expires: 2009-11-06
Abstract
Abstract A fire-retardant coating material includes a fluid intumescent material and conductive particles of various sizes dispersed or suspended therein for particular applications. The fluid intumescent material includes a foaming agent, a blowing agent gas source, a carbonific or charring agent, a film-forming binder, a solvent and, in some cases, a pigment or filler. The conductive particles are formed of a substrate and a conductive coating.
Inventors
- 👤 Otis H. Hastings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/24; C08; C08J; C08J9/00; C08J9/02; C09D5/18; C09D5/185
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
123 words
A fire-retardant and electrically-conductive coating material, comprising: (a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent; (b) an electrically-conductive material dispersed in said intumescent material in the range of 1% to 95% by weight; (c) said electrically-conductive material consisting of a substrate selected from the group consisting of fibers, spheres, granules, flakes, strands, and combinations thereof, and a coating consisting of an electrically-conductive metal; (d) said electrically-conductive material including conductive particles with a bulk length of at least 1/32"; and (e) said fire-retardant and electrically-conductive coating material for coating housing and building frames, industrial and commercial structures, transportation vehicles, and the like to render same fire resistant and electrically conductive.
Claim 2
Dependent Claim
123 words
A fire-retardant and electrically-conductive coating material, comprising: (a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent; (b) an electrically-conductive material dispersed in said intumescent material in the range of 1% to 95% by weight; (c) said electrically-conductive material consisting of a substrate selected from the group consisting of fibers, spheres, granules, flakes, strands, and combinations thereof, and a coating consisting of an electrically-conductive metal; (d) said electrically-conductive material including conductive particles with a bulk length of at least 1/32"; and (e) said fire-retardant and electrically-conductive coating material for coating housing and building frames, industrial and commercial structures, transportation vehicles, and the like to render same fire resistant and electrically conductive.
Claim 3
Dependent Claim
18 words
A fire-retardant material in accordance with claim 1, wherein said foaming agent is ammonium phosphate or ammonium polyphosphate.
Claim 4
Dependent Claim
16 words
A fire-retardant material in accordance with claim 1, wherein said blowing agent is melamine or urea.
Claim 5
Dependent Claim
17 words
A fire-retardant material in accordance with claim 1, wherein said charring agent is dipentaerythritol (DPE) or polyol.
Claim 6
Dependent Claim
32 words
A fire-retardant material in accordance with claim 1, wherein said intumescent base material includes titanium dioxide (TiO 2 ), an ammonium phosphate compound, melamine resin, DPE, and vinyl acetate or acrylic resin.
Claim 7
Dependent Claim
32 words
A fire-retardant material in accordance with claim 1, wherein said substrate includes glass, fiberglass, graphite, carbon, polyester, metal, metal oxide, mineral, wood, ceramics, or combinations thereof, or any other conductive coatable material.
Claim 8
Dependent Claim
21 words
A fire-retardant material in accordance with claim 1, wherein said substrate includes a refractory material capable of receiving a conductive coating.
Claim 9
Dependent Claim
46 words
A fire-retardant material in accordance with claim 7, wherein said substrate includes one or more of the following refractory materials: Al 2 O 3 , SiO 2 , Fe 2 O 3 , TiO 2 , KO 2 , Na 2 O, or ZrO 2 .
Claim 10
Dependent Claim
24 words
A fire-retardant material in accordance with claim 1, wherein said electrically-conductive material include a substrate of graphite fibers and a metal coating of nickel.
Claim 11
Dependent Claim
24 words
A fire-retardant material in accordance with claim 1, wherein said electrically-conductive material further includes conductive particles in the range of 1 to 35 microns.
Claim 12
Dependent Claim
28 words
A fire-retardant material in accordance with claim 1, wherein said electrically-conductive material is in the range of 6 ounces to 80 ounces for each gallon of intumescent material.
Claim 13
Dependent Claim
28 words
A fire-retardant material in accordance with claim 1, wherein said electrically-conductive material is in the range of 1 ounce to 120 ounces for each gallon of intumescent material.
Claim 14
Dependent Claim
23 words
A fire-retardant material in accordance with claim 1, wherein there are 30 ounces of said electrically-conductive material for each gallon of intumescent material.
Claim 15
Dependent Claim
20 words
A fire-retardant material in accordance with claim 1, wherein the conductive particles are round, oval, rectangular, or hexagonal in shape.
Claim 16
Dependent Claim
121 words
A fire-retardant and electrically-conductive coating material, comprising: (a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent; (b) an electrically-conductive material dispersed in said intumescent material in the range of 1% to 95% by weight; (c) said electrically-conductive material consisting of a substrate selected from the group consisting of fibers, spheres, granules, flakes, strands, and combinations thereof and a coating consisting of an electrically-conductive metal; (d) said electrically-conductive material including conductive particles with a bulk length of 1 to 35 microns; and (e) said fire-retardant and electrically-conductive coating material for coating interior finished surfaces, fabrics, and surfaces requiring a smooth finish to render same fire resistant and electrically conductive.
Claim 17
Dependent Claim
121 words
A fire-retardant and electrically-conductive coating material, comprising: (a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent; (b) an electrically-conductive material dispersed in said intumescent material in the range of 1% to 95% by weight; (c) said electrically-conductive material consisting of a substrate selected from the group consisting of fibers, spheres, granules, flakes, strands, and combinations thereof and a coating consisting of an electrically-conductive metal; (d) said electrically-conductive material including conductive particles with a bulk length of 1 to 35 microns; and (e) said fire-retardant and electrically-conductive coating material for coating interior finished surfaces, fabrics, and surfaces requiring a smooth finish to render same fire resistant and electrically conductive.
Claim 18
Dependent Claim
18 words
A fire-retardant material in accordance with claim 15, wherein said foaming agent is ammonium phosphate or ammonium polyphosphate.
Claim 19
Dependent Claim
16 words
A fire-retardant material in accordance with claim 15, wherein said blowing agent is melamine or urea.
Claim 20
Dependent Claim
17 words
A fire-retardant material in accordance with claim 15, wherein said charring agent is dipentaerythritol (DPE) or polyol.
Claim 21
Dependent Claim
32 words
A fire-retardant material in accordance with claim 15, wherein said intumescent base material includes titanium dioxide (TiO 2 ), an ammonium phosphate compound, melamine resin, DPE, and vinyl acetate or acrylic resin.
Claim 22
Dependent Claim
32 words
A fire-retardant material in accordance with claim 15, wherein said substrate includes glass, fiberglass, graphite, carbon, polyester, metal, metal oxide, mineral, wood, ceramics, or combinations thereof, or any other conductive coatable material.
Claim 23
Dependent Claim
21 words
A fire-retardant material in accordance with claim 15, wherein said substrate includes a refractory material capable of receiving a conductive coating.
Claim 24
Dependent Claim
46 words
A fire-retardant material in accordance with claim 21, wherein said substrate includes one or more of the following refractory materials: Al 2 O 3 , SiO 2 , Fe 2 O 3 , TiO 2 , KO 2 , Na 2 O, or ZrO 2 .
Claim 25
Dependent Claim
24 words
A fire-retardant material in accordance with claim 15, wherein said electrically-conductive material include a substrate of graphite fibers and a metal coating of nickel.
Claim 26
Dependent Claim
24 words
A fire-retardant material in accordance with claim 15, wherein said electrically-conductive material further includes conductive particles with a bulk length of at least 1/32".
Claim 27
Dependent Claim
28 words
A fire-retardant material in accordance with claim 15, wherein said electrically-conductive material is in the range of 6 ounces to 80 ounces for each gallon of intumescent material.
Claim 28
Dependent Claim
28 words
A fire-retardant material in accordance with claim 15, wherein said electrically-conductive material is in the range of 1 ounce to 120 ounces for each gallon of intumescent material.
Claim 29
Dependent Claim
23 words
A fire-retardant material in accordance with claim 15, wherein there are 30 ounces of said electrically-conductive material for each gallon of intumescent material.
Claim 30
Dependent Claim
20 words
A fire-retardant material in accordance with claim 15, wherein the conductive particles are round, oval, rectangular, or hexagonal in shape.
Claim 31
Dependent Claim
21 words
A fire-retardant material in accordance with claim 1, wherein said electrically-conductive metal is nickel, copper, aluminum, silver, gold or combinations thereof.
Claim 32
Dependent Claim
21 words
A fire-retardant material in accordance with claim 15, wherein said electrically-conductive metal is nickel, copper, aluminum, silver, gold or combinations thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |