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US4017455A
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Polyolefins and polyesters flame-proofed with carboxyalkyl and carbamoylalkyl substituted poly(phosphine oxides)
Assignee: Wyeth Holdings LLC
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Filing: 1975-08-11
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Granted: 1977-04-12
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Expires: 1995-08-11
Abstract
Abstract Polyolefins and polyesters are flame-proofed with compounds having the formula ##STR1## wherein X is OH or NH 2 and n is a whole, positive integer of 1-4, inclusive.
Inventors
- 👤 Joseph Adrian Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5397; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
63 words
A flame-retarded composition comprising (1) a polyolefin selected from the group consisting of polyethylene and polypropylene or a linear, aromatic polyester selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and poly (1,4-cyclohexanedimethylene) terephthalate and (2) a flame-retarding amount of a compound having the formula ##STR17##wherein X is OH or NH 2 and n is a whole, positive integer of 1-4, inclusive.
Claim 2
Dependent Claim
63 words
A flame-retarded composition comprising (1) a polyolefin selected from the group consisting of polyethylene and polypropylene or a linear, aromatic polyester selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and poly (1,4-cyclohexanedimethylene) terephthalate and (2) a flame-retarding amount of a compound having the formula ##STR17##wherein X is OH or NH 2 and n is a whole, positive integer of 1-4, inclusive.
Claim 3
Dependent Claim
10 words
A composition according to claim 1 wherein X is OH.
Claim 4
Dependent Claim
12 words
A composition according to claim 1 wherein X is NH 2 .
Claim 5
Dependent Claim
14 words
A composition according to claim 1 wherein n is 4 and X is OH.
Claim 6
Dependent Claim
16 words
A composition according to claim 1 wherein n is 4 and X is NH 2 .
Claim 7
Dependent Claim
10 words
A composition according to claim 1 wherein (1) is polyethylene.
Claim 8
Dependent Claim
11 words
A composition according to claim 1 wherein (1) is polybutylene terephthalate.
Claim 9
Dependent Claim
10 words
A composition according to claim 1 wherein (1) is polypropylene.
Claim 10
Dependent Claim
11 words
A composition according to claim 1 wherein (1) is polyethylene terephthalate.
Claim 11
Dependent Claim
73 words
A method for the production of a composition of claim 1 which comprises blending (1) a polyolefin selected from the group consisting of polyethylene and polypropylene or a linear, aromatic polyester selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and poly (1,4-cyclohexanedimethylene) terephthalate with (2) a flame-retarding amount of a compound having the formula ##STR18##wherein X is OH or NH 2 and n is a whole, positive integer of 1-4, inclusive.
Claim 12
Dependent Claim
36 words
A composition according to claim 1 wherein said (1) is a polyolefin and there is incorporated therein (3) an ammonium polyphosphate at a ratio of (2) to (3) 1 : 1 to 1 : 3, respectively.
Claim 13
Dependent Claim
30 words
A composition according to claim 11 containing, in addition thereto, (4) from about 0.5 to 5.0 percent, by weight, based on the weight of said polyolefin of a metal oxide.
Claim 14
Dependent Claim
12 words
A composition according to claim 12 wherein said (4) is titanium dioxide.
References Cited (Backward Citations)
US3255145A
Cited
US3284543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |