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Patent US4144387A successfully refreshed from Google Patents.
US4144387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphonate flame retardant mixture and resinous foams containing same
Assignee: Albright and Wilson Inc
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Filing: 1978-02-02
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Granted: 1979-03-13
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Expires: 1998-02-02
Abstract
Abstract There is provided a flame retardant mixture containing between about one weight percent and about 75 weight percent of a compound having the structure: <IMAGE> AND BETWEEN ABOUT 99 WEIGHT PERCENT AND ABOUT 25 WEIGHT PERCENT OF A HIGH BOILING PHOSPHONATE COMPRISING PREDOMINANTLY A COMPOUND HAVING THE STRUCTURE: <IMAGE> There are also provided polymers, particulary rigid and flexible urethane foams, containing between about two weight percent and about 30 weight percent of the flame retardant mixture.
Inventors
- 👤 James J. Anderson
- 👤 Vasco G. Camacho
- 👤 Robert E. Kinney
- 👤 Francis M. Seger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:20
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0038; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5337; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S521/00; Y10S521/906
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
47 words
A flame retardant mixture containing between about one weight percent and about 75 weight percent of a monomer compound having the structure: ##STR7## and between about 99 weight percent and about 25 weight percent of a high boiling phosphonate comprising predominantly a compound having the structure: ##STR8##
Claim 2
Dependent Claim
47 words
A flame retardant mixture containing between about one weight percent and about 75 weight percent of a monomer compound having the structure: ##STR7## and between about 99 weight percent and about 25 weight percent of a high boiling phosphonate comprising predominantly a compound having the structure: ##STR8##
Claim 3
Dependent Claim
43 words
The flame retardant mixture of claim 1, wherein the amount of said monomer is between about 2 weight percent and about 65 weight percent and the amount of said high boiling phosphonate is between about 98 weight percent and about 35 weight percent.
Claim 4
Dependent Claim
31 words
The flame retardant mixture of claim 1, wherein the amount of said monomer is about 65 weight percent and the amount of said high boiling phosphonate is about 35 weight percent.
Claim 5
Dependent Claim
31 words
The flame retardant mixture of claim 1, wherein the amount of said monomer is about 2 weight percent and the amount of said high boiling phosphonate is about 98 weight percent.
Claim 6
Dependent Claim
16 words
A polymer composition containing a flame retardant amount of the flame retardant mixture of claim 1.
Claim 7
Dependent Claim
17 words
The polymer composition of claim 5, wherein the flame retardant mixture is that defined in claim 2.
Claim 8
Dependent Claim
18 words
The flame retardant composition of claim 5, wherein the flame retardant mixture is that defined in claim 3.
Claim 9
Dependent Claim
17 words
The polymer composition of claim 5, wherein the flame retardant mixture is that defined in claim 4.
Claim 10
Dependent Claim
13 words
The polymer composition of claim 5, wherein the polymer is rigid urethane foam.
Claim 11
Dependent Claim
13 words
The polymer composition of claim 7, wherein the polymer is rigid urethane foam.
Claim 12
Dependent Claim
13 words
The polymer composition of claim 8, wherein the polymer is rigid urethane foam.
Claim 13
Dependent Claim
13 words
The polymer composition of claim 5, wherein the polymer is flexible urethane foam.
Claim 14
Dependent Claim
13 words
The polymer composition of claim 7, wherein the polymer is flexible urethane foam.
Claim 15
Dependent Claim
13 words
The polymer composition of claim 8, wherein the polymer is flexible urethane foam.
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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |