US3953166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant organic textiles through treatment with phenols and adduct polymers
Assignee: United States Department of Agriculture
•
Filing: 1974-08-22
•
Granted: 1976-04-27
•
Expires: 1994-08-22
Abstract
Abstract Soluble adduct polymers were allowed to react with phenol, alkyl substituted phenols or halogen substituted phenols which contain one or more hydrogens ortho or para to the phenolic hydroxyl group to (a) prepare flame resistant polymers and (b) prepare flame-, glow-, wrinkle- and shrink-resistant woven and knit textiles which contain 25% or more cellulosic fibers.
Inventors
- 👤 Armand B. Pepperman, Jr.
- 👤 Donald J. Daigle
- 👤 Sidney L. Vail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:07
CPC Classifications
C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G8/00; C08G8/38; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; D06M15/673; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A process for flameproofing organic textiles comprising: a. reacting a hydroxymethyl phosphorus compound with a nitrogenous compound to form an insoluble polymeric precipitate, b. dissolving the precipitate from (a) in the presence of formaldehyde and an inorganic or organic acid with a mole ratio of 1:4 to 4:1 of formaldehyde to phosphorus contained in the precipitate and a 1:10 to 2:1 ratio of acid to phosphorus contained in the precipitate, c. reacting the soluble polymer adduct from (b) with a phenolic type compound containing one or more hydrogens ortho or para to the phenolic hydroxyl group, d. wetting a textile fabric with a solution of (c), and e. drying the wetting fabric from (d) at a temperature from about 90°-170°C.
Claim 2
Dependent Claim
120 words
A process for flameproofing organic textiles comprising: a. reacting a hydroxymethyl phosphorus compound with a nitrogenous compound to form an insoluble polymeric precipitate, b. dissolving the precipitate from (a) in the presence of formaldehyde and an inorganic or organic acid with a mole ratio of 1:4 to 4:1 of formaldehyde to phosphorus contained in the precipitate and a 1:10 to 2:1 ratio of acid to phosphorus contained in the precipitate, c. reacting the soluble polymer adduct from (b) with a phenolic type compound containing one or more hydrogens ortho or para to the phenolic hydroxyl group, d. wetting a textile fabric with a solution of (c), and e. drying the wetting fabric from (d) at a temperature from about 90°-170°C.
Claim 3
Dependent Claim
9 words
The product produced by the process of claim 1.
References Cited (Backward Citations)
US3787360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |