Patent US4061810A successfully refreshed from Google Patents.
US4061810A
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US
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Flame-retardant carpet and composition for preparing the same
Assignee: Honeywell International Inc
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Filing: 1976-09-27
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Granted: 1977-12-06
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Expires: 1996-09-27
Abstract
Abstract Combinations of certain hydroxycarboxylic acids with certain metal oxides and hydroxides provide unexpectedly enhanced flame retardancy to carpets, said flame retardancy being durable to usual carpet cleaning procedures.
Inventors
- 👤 Pritam Singh Minhas
- 👤 Bernard Sukornick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/28; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C09; C09K; C09K21/00; D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/44; D06M11/45; D06M11/46; D06M13/00; D06M13/10; D06M13/184; D06M13/207; D06M2200/00; D06M2200/30; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 53
Claim 1
Independent Claim
106 words
A flame retardant carpet having a relatively pliable primary backing and a tufted surface, said surface being comprised of fibers selected from the group consisting of polyester and polyamide fibers, said carpet having from about 1 to 15 weight percent of a composition added thereto, said composition comprising: a. about 10 to about 90 weight percent of a polyvalent metal compound selected from the group consisting of oxides and hydroxides of tin, antimony, aluminum and zinc; and b. about 10 to about 90 weight percent of a hydroxycarboxylic acid selected from the group consisting of malic acid, citric acid, tartaric acid, gallic acid, and 2,4-dihydroxybenzoic acid.
Claim 2
Dependent Claim
106 words
A flame retardant carpet having a relatively pliable primary backing and a tufted surface, said surface being comprised of fibers selected from the group consisting of polyester and polyamide fibers, said carpet having from about 1 to 15 weight percent of a composition added thereto, said composition comprising: a. about 10 to about 90 weight percent of a polyvalent metal compound selected from the group consisting of oxides and hydroxides of tin, antimony, aluminum and zinc; and b. about 10 to about 90 weight percent of a hydroxycarboxylic acid selected from the group consisting of malic acid, citric acid, tartaric acid, gallic acid, and 2,4-dihydroxybenzoic acid.
Claim 3
Dependent Claim
11 words
The carpet of claim 1 wherein the fibers are polyamide fibers.
Claim 4
Dependent Claim
12 words
The carpet of claim 1 wherein the metal compound is antimony oxide.
Claim 5
Dependent Claim
17 words
The carpet of claim 3 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 6
Dependent Claim
12 words
The carpet of claim 3 wherein the hydroxycarboxylic acid is gallic acid.
Claim 7
Dependent Claim
12 words
The carpet of claim 1 wherein the metal compound is stannic hydroxide.
Claim 8
Dependent Claim
17 words
The carpet of claim 6 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 9
Dependent Claim
12 words
The carpet of claim 6 wherein the hydroxycarboxylic acid is gallic acid.
Claim 10
Dependent Claim
12 words
The carpet of claim 1 wherein the metal compound is aluminum hydroxide.
Claim 11
Dependent Claim
17 words
The carpet of claim 9 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 12
Dependent Claim
12 words
The carpet of claim 9 wherein the hydroxycarboxylic acid is gallic acid.
Claim 13
Dependent Claim
12 words
The carpet of claim 1 wherein the metal compound is zinc oxide.
Claim 14
Dependent Claim
12 words
The carpet of claim 1 wherein the hydroxycarboxylic acid is malic acid.
Claim 15
Dependent Claim
12 words
The carpet of claim 1 wherein the hydroxycarboxylic acid is citric acid.
Claim 16
Dependent Claim
12 words
The carpet of claim 1 wherein the hydroxycarboxylic acid is tartaric acid.
Claim 17
Dependent Claim
12 words
The carpet of claim 1 wherein the hydroxycarboxylic acid is gallic acid.
Claim 18
Dependent Claim
12 words
The carpet of claim 1 wherein the hydroxycarboxylic acid is 2,4-dihydroxybenzoic acid.
Claim 19
Dependent Claim
131 words
In a process for producing a carpet having a relatively pliable primary backing through which polyamide or polyester fibers are tufted, the improvement which comprises adding to said carpet from about 1 to 15 weight percent of composition comprising: a. about 10 to about 90 weight percent of a polyvalent metal compound selected from the group consisting of oxides and hydroxides of tin, antimony, aluminum and zinc; and b. about 10 to about 90 weight percent of a hydroxycarboxylic acid selected from the group consisting of malic acid, citric acid, tartaric acid, gallic acid, and 2,4-dihydroxybenzoic acid; and curing said composition on the carpet at a temperature of about 100° to 150° C., whereby said carpet has improved flame retardancy and said flame retardancy has improved durability to carpet cleaning procedures.
Claim 20
Dependent Claim
131 words
In a process for producing a carpet having a relatively pliable primary backing through which polyamide or polyester fibers are tufted, the improvement which comprises adding to said carpet from about 1 to 15 weight percent of composition comprising: a. about 10 to about 90 weight percent of a polyvalent metal compound selected from the group consisting of oxides and hydroxides of tin, antimony, aluminum and zinc; and b. about 10 to about 90 weight percent of a hydroxycarboxylic acid selected from the group consisting of malic acid, citric acid, tartaric acid, gallic acid, and 2,4-dihydroxybenzoic acid; and curing said composition on the carpet at a temperature of about 100° to 150° C., whereby said carpet has improved flame retardancy and said flame retardancy has improved durability to carpet cleaning procedures.
Claim 21
Dependent Claim
11 words
The process of claim 18 wherein the fibers are polyamide fibers.
Claim 22
Dependent Claim
12 words
The process of claim 18 wherein the metal compound is antimony oxide.
Claim 23
Dependent Claim
17 words
The process of claim 20 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 24
Dependent Claim
12 words
The process of claim 20 wherein the hydroxycarboxylic acid is gallic acid.
Claim 25
Dependent Claim
12 words
The process of claim 18 wherein the metal compound is stannic hydroxide.
Claim 26
Dependent Claim
17 words
The process of claim 23 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 27
Dependent Claim
12 words
The process of claim 23 wherein the hydroxycarboxylic acid is gallic acid.
Claim 28
Dependent Claim
12 words
The process of claim 18 wherein the metal compound is aluminum hydroxide.
Claim 29
Dependent Claim
17 words
The process of claim 26 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 30
Dependent Claim
12 words
The process of claim 26 wherein the hydroxycarboxylic acid is gallic acid.
Claim 31
Dependent Claim
12 words
The process of claim 18 wherein the metal compound is zinc oxide.
Claim 32
Dependent Claim
12 words
The process of claim 18 wherein the hydroxycarboxylic acid is malic acid.
Claim 33
Dependent Claim
12 words
The process of claim 18 wherein the hydroxycarboxylic acid is citric acid.
Claim 34
Dependent Claim
12 words
The process of claim 18 wherein the hydroxycarboxylic acid is tartaric acid.
Claim 35
Dependent Claim
12 words
The process of claim 18 wherein the hydroxycarboxylic acid is gallic acid.
Claim 36
Dependent Claim
12 words
The process of claim 18 wherein the hydroxycarboxylic acid is 2,4-dihydroxybenzoic acid.
Claim 37
Dependent Claim
70 words
A composition for increasing flame retardance of a carpet consisting essentially of: a. about 10 to about 90 weight percent of a polyvalent metal compound selected from the group consisting of oxides and hydroxides of tin, antimony, aluminum, and zinc; and b. about 10 to about 90 weight percent of a hydroxycarboxylic acid selected from the group consisting of malic acid, citric acid, tartaric acid, gallic acid, and 2,4-dihydroxybenzoic acid.
Claim 38
Dependent Claim
70 words
A composition for increasing flame retardance of a carpet consisting essentially of: a. about 10 to about 90 weight percent of a polyvalent metal compound selected from the group consisting of oxides and hydroxides of tin, antimony, aluminum, and zinc; and b. about 10 to about 90 weight percent of a hydroxycarboxylic acid selected from the group consisting of malic acid, citric acid, tartaric acid, gallic acid, and 2,4-dihydroxybenzoic acid.
Claim 39
Dependent Claim
12 words
The composition of claim 35 wherein the metal compound is antimony oxide.
Claim 40
Dependent Claim
17 words
The composition of claim 36 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 41
Dependent Claim
12 words
The composition of claim 36 wherein the hydroxycarboxylic acid is gallic acid.
Claim 42
Dependent Claim
12 words
The composition of claim 35 wherein the metal compound is stannic hydroxide.
Claim 43
Dependent Claim
17 words
The composition of claim 39 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 44
Dependent Claim
12 words
The composition of claim 39 wherein the hydroxycarboxylic acid is gallic acid.
Claim 45
Dependent Claim
12 words
The composition of claim 35 wherein the metal compound is aluminum hydroxide.
Claim 46
Dependent Claim
17 words
The composition of claim 42 wherein the hydroxycarboxylic acid is citric acid, tartaric acid, or gallic acid.
Claim 47
Dependent Claim
12 words
The composition of claim 42 wherein the hydroxycarboxylic acid is gallic acid.
Claim 48
Dependent Claim
12 words
The composition of claim 35 wherein the metal compound is zinc oxide.
Claim 49
Dependent Claim
12 words
The composition of claim 35 wherein the hydroxycarboxylic acid is malic acid.
Claim 50
Dependent Claim
12 words
The composition of claim 35 wherein the hydroxycarboxylic acid is citric acid.
Claim 51
Dependent Claim
12 words
The composition of claim 35 wherein the hydroxycarboxylic acid is tartaric acid.
Claim 52
Dependent Claim
12 words
The composition of claim 35 wherein the hydroxycarboxylic acid is gallic acid.
Claim 53
Dependent Claim
12 words
The composition of claim 35 wherein the hydroxycarboxylic acid is 2,4-dihydroxybenzoic acid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |