Patent US4358500A successfully refreshed from Google Patents.
US4358500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant insulating fabric compositions containing inorganic bonding agent
Assignee: Label Aire Inc
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Filing: 1981-08-20
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Granted: 1982-11-09
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Expires: 2001-08-20
Abstract
Abstract An inorganic composition prepared from colloidal silica, monoaluminum phosphate and aluminum chlorohydrate is employed as a bonding agent to bond refractory materials to a porous base fabric, such as fiberglass, to prepare fabric compositions that are flame and heat resistant and possess dielectric properties.
Inventors
- 👤 Stephen George
- 👤 Thomas George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:44
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/5025; D; D04; D04H; D04H11/00; D06; D06M; D06M10/00; D06M10/04; D06M10/06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0042; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2848; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2107; Y10T442/2115; Y10T442/2631; Y10T442/273
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
85 words
A heat resistant, flexible, refractory, insulating composition comprising: (a) a porous base fabric; (b) a refractory coating comprising refractory materials and a bonding agent, said refractory coating formed on the surface and interstices of said fabric and said refractory materials being capable of fusing with the porous base fabric at elevated temperatures; and (c) a saturation coating formed on the outside surface of said refractory coating, said bonding agent and said saturation coating being an inorganic composition comprising colloidal silica, monoaluminum phosphate and aluminum chlorohydrate.
Claim 2
Dependent Claim
85 words
A heat resistant, flexible, refractory, insulating composition comprising: (a) a porous base fabric; (b) a refractory coating comprising refractory materials and a bonding agent, said refractory coating formed on the surface and interstices of said fabric and said refractory materials being capable of fusing with the porous base fabric at elevated temperatures; and (c) a saturation coating formed on the outside surface of said refractory coating, said bonding agent and said saturation coating being an inorganic composition comprising colloidal silica, monoaluminum phosphate and aluminum chlorohydrate.
Claim 3
Dependent Claim
31 words
A heat resistant, flexible, refractory insulating composition according to claim 1 including the following additional element: (d) an abrasion resistant polymeric coating formed on the outside surface of said saturation coating.
Claim 4
Dependent Claim
31 words
A heat resistant, flexible, refractory insulating composition according to claims 1 or 2 wherein the refractory coating and the saturation coating are applied to both sides of the porous base fabric.
Claim 5
Dependent Claim
41 words
A heat resistant, flexible, refractory insulating composition according to claim 3 wherein the polymeric coating is formed on the outside surface of one of the saturation coatings and an adhesive is formed on the outside surface of the other saturation coating.
Claim 6
Dependent Claim
26 words
A heat resistant, flexible, refractory insulating composition according to claim 3 wherein the polymeric coating is formed on the outside of both of the saturation coatings.
Claim 7
Dependent Claim
25 words
A heat resistant, flexible, refractory insulating composition according to claim 5 wherein an adhesive is formed on the surface of one of the polymeric coatings.
Claim 8
Dependent Claim
30 words
A heat resistant, flexible, refractory insulating composition according to claim 1 wherein the porous base fabric is a knitted fiberglass, a woven fiberglass or a non-woven, porous web of fiberglass.
Claim 9
Dependent Claim
25 words
A heat resistant, flexible, refractory insulating composition according to claim 1 wherein the refractory materials are alumina, zirconia, calcium silicate, silicon dioxide or mixtures thereof.
Claim 10
Dependent Claim
25 words
A heat resistant, flexible, refractory insulating composition according to claim 1 wherein the refractory materials are silicon carbide, alumina silica fiber or thermal carbon black.
Claim 11
Dependent Claim
31 words
A method of preparing the bonding agent and the saturation coating of claim 1 which comprises: separately adding monoaluminum phosphate and aluminum chlorohydrate to colloidal silica to form an inorganic composition.
Claim 12
Dependent Claim
83 words
A method for preparing the composition of claim 1 which comprises: (a) coating a porous base fabric with a refractory coating comprising refractory materials and the inorganic composition prepared by the method of claim 9, (b) drying the refractory coating, (c) applying the inorganic composition prepared by the method of claim 9 to the dry refractory coating formed on the fabric to form a saturation coating, and (d) drying the coated fabric to produce a dry saturation coating on the dry refractory coating.
Claim 13
Dependent Claim
32 words
A method according to claim 11 including the following addition step: (e) passing the dry coated fabric of step (d) over a means for inducing a sharp fold in the coated fabric.
Claim 14
Dependent Claim
16 words
A method according to claim 12 wherein the means is a bar or an idler roller.
Claim 15
Dependent Claim
26 words
A method according to claim 11 including the following additional step: (f) applying an abrasion resistant polymeric coating to the outer surface of the saturation coating.
References Cited (Backward Citations)
US4282284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |