US3762942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of flame proofing carpets
Assignee: Polaris Chemical Corp
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Filing: 1972-04-19
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Granted: 1973-10-02
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Expires: 1992-04-19
Abstract
Abstract A novel method for flame proofing a carpet is disclosed which is based on the use of an aqueous composition that contains a foaming agent; a mixture of urea or thiourea and a polyhalo (Br, Cl) propanol ester of phosphoric, phosphoramidic or mixtures thereof; a water-soluble aminealdehyde resin, and an acid generating catalyst.
Inventors
- 👤 R Putnam
- 👤 J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:22
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/58; D06M11/66; D06M11/07; D06M11/11; D06M11/13; D06M13/00; D06M13/244; D06M13/282; D06M13/292; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/433
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
18 words
The process of claim 1 wherein said foaming agent is a mixture of ammonium bromide and diammonium phosphate.
Claim 2
Dependent Claim
11 words
The process of claim 1 wherein said catalyst is zinc chloride.
Claim 3
Dependent Claim
72 words
The process of claim 1 wherein the treating composition comprises: a. about 3.5 percent by weight of a 1:1 parts by weight mixture of ammonium bromide and diammonium phosphate; b. about 3 percent by weight of a 1:2 parts by weight mixture of urea and phosphoric acid, bis-(2,3-dibromopropyl)ester, monoammonium salt; c. about 1 percent by weight of a melamineformaldehyde water-soluble resin; and d. about 0.3 percent by weight of 2-methyl aminopropanol hydrochloride.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein said carpet is made from wool.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein said carpet is made from polyester.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein said carpet is made from polyacrylonitrile.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein said carpet is made from cotton.
Claim 8
Dependent Claim
14 words
The process of claim 1 wherein said carpet is made from a bast fiber.
Claim 9
Dependent Claim
13 words
The process of claim 1 wherein said carpet is made from nylon fiber.
Claim 10
Dependent Claim
23 words
The process of claim 1 wherein said carpet is made from a viscose-nylon fiber which has an 80:20 ratio of viscose to nylon.
Claim 11
Dependent Claim
24 words
The process of claim 1 wherein said amine-aldehyde water-soluble resin is made from an amine such as urea, and an aldehyde such as formaldehyde.
Claim 12
Dependent Claim
22 words
The process of claim 12 wherein said foaming agent is a 1:1 parts by weight mixture of ammonium bromide and diammonium phosphate.
Claim 13
Dependent Claim
26 words
The process of claim 12 wherein said urea-ester mixture is a 1:2 parts by weight mixture of urea and phosphoric acid, bis-(2, 3-dibromopropyl) ester, monoammonium salt.
Claim 14
Dependent Claim
14 words
The process of claim 12 wherein said amine-aldehyde water-soluble resin is a melamine-formaldehyde resin.
Claim 15
Dependent Claim
11 words
The process of claim 12 wherein said catalyst is 2-methyl-2-aminopropanol hydrochloride.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |