US4419401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retardant concentrates and methods
Assignee: Individual
•
Filing: 1982-08-03
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Granted: 1983-12-06
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Expires: 2002-08-03
Abstract
Abstract There is disclosed a flame retardant composition suitable for application to a variety of textile and textile related products. The formulation is a water based liquid polymeric concentrate comprising about 35-65 parts of ammonium phosphate, about 10-30 parts of ammonium sulfate, about 40-60 parts of an alkanolamine, about 40-60 parts of phosphoric acid, about 20-40 parts of an aldehyde, in 100-140 parts by weight of water.
Inventors
- 👤 Glenn A. Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:38
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/14; C08; C08G; C08G16/00; C08G16/02; C08G16/0206; D; D06; D06M; D06M11/00; D06M11/51; D06M11/55; D06M11/68; D06M11/70; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/31964; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
71 words
A concentrate comprising the reaction product of (a) about 35-65 parts by weight of ammonium phosphate, (b) about 10-30 parts by weight of ammonium sulfate, (c) about 40-60 parts by weight of an alkanolamine, (d) about 40-60 parts by weight of phosphoric acid, and (e) about 20-40 parts by weight of an aldehyde, said concentrate being contained in about 100-140 parts of water and forming flexible, hard non-burning coatings on substrates.
Claim 2
Dependent Claim
71 words
A concentrate comprising the reaction product of (a) about 35-65 parts by weight of ammonium phosphate, (b) about 10-30 parts by weight of ammonium sulfate, (c) about 40-60 parts by weight of an alkanolamine, (d) about 40-60 parts by weight of phosphoric acid, and (e) about 20-40 parts by weight of an aldehyde, said concentrate being contained in about 100-140 parts of water and forming flexible, hard non-burning coatings on substrates.
Claim 3
Dependent Claim
19 words
A concentrate according to claim 1 wherein the composition also contains at least one soil and stain resistant agent.
Claim 4
Dependent Claim
82 words
A concentrate according to claim 1 wherein the ammonium phosphate is present in an amount of about 35-65 parts by weight, the ammonium sulfate is present in an amount of about 10-30 parts by weight, the alkanolamine is present in an amount of about 40-60 parts by weight, the phosphoric acid is present in an amount of about 40-60 parts by weight, and the aldehyde is present in an amount of about 25-35 parts, all contained in about 110-130 parts of water.
Claim 5
Dependent Claim
21 words
A concentrate according to claim 3 which contains about 5-10 weight percent of at least one soil and stain resistant ingredient.
Claim 6
Dependent Claim
15 words
A concentrate according to claim 4 which contains 1-3 parts by weight of a surfactant.
Claim 7
Dependent Claim
16 words
A concentrate according to claim 1 wherein the aldehyde is a 37% aqueous solution of formaldehyde.
Claim 8
Dependent Claim
15 words
A concentrate according to claim 1 wherein the phosphoric acid is 85% aqueous phosphoric acid.
Claim 9
Dependent Claim
50 words
A concentrate according to claim 1 wherein the concentrate contains about 50 parts of ammonium phosphate, about 20 parts of ammonium sulfate, about 80 parts of a 37% solution of formaldehyde, about 50 parts of triethanolamine, and about 60 parts of 85% phosphoric acid, in about 120 parts of water.
Claim 10
Dependent Claim
31 words
A concentrate according to claim 8 which also contains about 1-3 parts by weight of a surfactant and about 5-10 weight percent of at least one soil and stain resistant agent.
Claim 11
Dependent Claim
13 words
A wood substrate treated with a concentrate of claim 1, dried and cured.
Claim 12
Dependent Claim
15 words
A paper or cardboard substrate treated with a concentrate of claim 1, dried and cured.
Claim 13
Dependent Claim
11 words
Textiles treated with a concentrate of claim 1, dried and cured.
Claim 14
Dependent Claim
13 words
Fabrics coated or impregnated with a concentrate of claim 1, dried and cured.
Claim 15
Dependent Claim
12 words
Synthetic fabrics treated with a concentrate of claim 1, dried and cured.
Claim 16
Dependent Claim
27 words
A method for imparting fire-retardant characteristics to cellulosic and synthetic resin materials which comprises treating the materials with a concentrate according to claim 1, drying and curing.
References Cited (Backward Citations)
US2452054A
Cited
US2632742A
Cited
US3883462A
Cited
US3983269A
Cited
US3984367A
Cited
US3990977A
Cited
US4119598A
Cited
US4215172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |