US3841902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Durable fire retardant fabrics made using organic solvent systems of brominated phosphate monomers
Assignee: Indopco Inc
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Filing: 1972-09-15
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Granted: 1974-10-15
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Expires: 1992-09-15
Abstract
Abstract Durable fire retardant properties are imparted to fabrics by application to the fabric of organic solvent systems containing polymerizable unsaturated brominated phosphate monomer, e.g., bis-(2,3-dibromopropyl) acryloxyethyl phosphate, and copolymerizable olefinically unsaturated monomer, e.g., diallyl phthalate, evaporation of volatile solvent and in situ polymerization of monomers retained in the fabric. Preferably, the solvent systems additionally contain multifunctional aminoplast precursors, e.g., N,N-dimethylol allyl carbamate, as synergist binders, and the treated fabric also attains durable press properties.
Inventors
- 👤 J Thompson
- 👤 C Iovine
- 👤 D Chaudhuri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:52
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/356; D06M15/3564; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10S8/00; Y10S8/15; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/23986; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/2697
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
41 words
A METHOD OF PRODUCING A TEXTILE PRODUCT HAVING DURABLE FIRE RETARDANCY AND DURABLE PRESS PROPERTIES WHICH COMPRISES: A. PROVIDING A SUBSTANTIALLY ANHYDROUS SOLUTION IN A VOLATILE ORGANIC SOLVENT OF THE FOLLOWING INGREDIENTS IN THE WEIGHT PERCENTAGES INDICATED OF THE TOTAL SOLUTION:
Claim 2
Independent Claim
41 words
A METHOD OF PRODUCING A TEXTILE PRODUCT HAVING DURABLE FIRE RETARDANCY AND DURABLE PRESS PROPERTIES WHICH COMPRISES: A. PROVIDING A SUBSTANTIALLY ANHYDROUS SOLUTION IN A VOLATILE ORGANIC SOLVENT OF THE FOLLOWING INGREDIENTS IN THE WEIGHT PERCENTAGES INDICATED OF THE TOTAL SOLUTION:
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein step C is conducted at 20* to 120*C. for between about 5 to 30 minutes.
Claim 4
Dependent Claim
19 words
The method of claim 1 wherein step B is preformed by immersion of the fabric in said anhydrous solution.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein said fabric of step B is selected from the group consisting of cellulosic fabrics and polyester fabrics.
Claim 6
Independent Claim
145 words
A method of durably increasing the fire retardancy of a textile product which comprises: A. providing a substantially anhydrous solution in a volatile organic solvent 10-50 percent of ingredient (a), 1-10 percent of ingredient (b) and 0.1-5 percent of ingredient (c), said percentage being by weight of the stated ingredients based on the total weight of the solution, B. applying said anhydrous solution to a fabric in such quantity that the weight ratio of said ingredient (a) applied to the dry weight of the fabric is between about 1:10 and 5:10, C. evaporating substantially all volatile organic solvent from the fabric resulting from step B, and D. heating the solvent-freed fabric to a temperature of about 80*-200*C. for about 1-60 minutes to cure and set ingredients (a) and (b) upon the fabric, said ingredient (a) being a polymerizable unsaturated brominated phosphate monomer of the forumula:
Claim 7
Independent Claim
145 words
A method of durably increasing the fire retardancy of a textile product which comprises: A. providing a substantially anhydrous solution in a volatile organic solvent 10-50 percent of ingredient (a), 1-10 percent of ingredient (b) and 0.1-5 percent of ingredient (c), said percentage being by weight of the stated ingredients based on the total weight of the solution, B. applying said anhydrous solution to a fabric in such quantity that the weight ratio of said ingredient (a) applied to the dry weight of the fabric is between about 1:10 and 5:10, C. evaporating substantially all volatile organic solvent from the fabric resulting from step B, and D. heating the solvent-freed fabric to a temperature of about 80*-200*C. for about 1-60 minutes to cure and set ingredients (a) and (b) upon the fabric, said ingredient (a) being a polymerizable unsaturated brominated phosphate monomer of the forumula:
Claim 8
Dependent Claim
22 words
The method of claim 5 wherein ingredient (b) is a diallyl ester of dicarboxylic acid and ingredient (c) is an organic peroxide.
Claim 9
Dependent Claim
12 words
The method of claim 5 wherein ingredient (a) is bis-(2,3-dibromopropyl) acryloxyethyl phosphate.
Claim 10
Dependent Claim
17 words
The method of claim 7 wherein ingredient (b) is diallyl phthalate and ingredient (c) is lauroyl peroxide.
Claim 11
Dependent Claim
18 words
The method of claim 8 wherein said solution additionally contains 1-15 percent of a nitrogen containing crease-proofing agent.
Claim 12
Dependent Claim
15 words
A textile product having durable fire retardancy properties produced by the process of claim 5.
References Cited (Backward Citations)
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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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |