US4336182A
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US
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Self-extinguishing polymeric compositions
Assignee: Montedison SpA
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Filing: 1980-07-25
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Granted: 1982-06-22
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Expires: 2000-07-25
Abstract
Abstract Thermoplastic polymers, such as polypropylene, are rendered anti-flaming and self-extinguishing by addition of ammonium or amine phosphate and a nitrogen-containing water-insoluble oligomer or polymer containing in the monomeric unit a -CO-group attached to a <IMAGE> group, wherein n is 2 or 3, being part of a ring, e.g., poly(carbonylpiperazine).
Inventors
- 👤 Gianluigi Landoni
- 👤 Spartaco Fontani
- 👤 Osvaldo Cicchetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:59
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K3/00; C08K3/32; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445; C08K5/3462; C08K5/49; C08K5/51; C08K5/53; C08L101/00; C08L23/10; C08L79/00; C08L79/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
Self-extinguishing polymeric compositions based on a thermoplastic polymer, and comprising for 100 parts by weight of the total composition: (1) from 10 to 20 parts by weight of a compound selected from the group consisting of amine phosphates, ammonium phosphates and ammonium polyphosphates; and (2) from 5 to 8 parts by weight of a nitrogen-containing product consisting of an oligomer or a polymer, insoluble in water, containing in the monomeric unit a --CO-- group attached to the nitrogen atom of a ring selected from the piperazine and imidazolidin-2-one rings.
Claim 2
Dependent Claim
89 words
Self-extinguishing polymeric compositions based on a thermoplastic polymer, and comprising for 100 parts by weight of the total composition: (1) from 10 to 20 parts by weight of a compound selected from the group consisting of amine phosphates, ammonium phosphates and ammonium polyphosphates; and (2) from 5 to 8 parts by weight of a nitrogen-containing product consisting of an oligomer or a polymer, insoluble in water, containing in the monomeric unit a --CO-- group attached to the nitrogen atom of a ring selected from the piperazine and imidazolidin-2-one rings.
Claim 3
Dependent Claim
29 words
Polymeric compositions according to claim 1, in which the ammonium phosphate is a polyphosphate of the composition (NH 4 PO 3 ) n wherein n is greater than 50.
Claim 4
Dependent Claim
26 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting diphenyl carbonate with piperazine in the molar ratio 1:1.
Claim 5
Dependent Claim
26 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting diphenyl carbonate with imidazolidin-2-one in the molar ratio 1:1.
Claim 6
Dependent Claim
25 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting piperazine-N,N'-bis(phenylcarbonate) with imidazolidin-2-one in the molar ratio 1:1.
Claim 7
Dependent Claim
25 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate with piperazine in the molar ratio 1:1.
Claim 8
Dependent Claim
26 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting diethyl imidodicarbonate with piperazine in the molar ratio 1:1.
Claim 9
Dependent Claim
26 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting diethyl oxalate with piperazine in the molar ratio 1:1.
Claim 10
Dependent Claim
25 words
Polymeric compositions according to claim 1, in which the nitrogen-containing product is the product obtained by reacting 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate with 2-methylpiperazine in the molar ratio 1:1.
Claim 11
Dependent Claim
13 words
Polymeric compositions according to claim 1, in which the thermoplastic polymer is polypropylene.
Claim 12
Dependent Claim
57 words
Self-extinguishing polymeric compositions based on thermoplastic polymers, comprising an antiflame additive a component of which is a nitrogen-containing product in the form of an oligomer or a polymer insoluble in water, and in which the repeating monomeric unit contains a --CO-- group attached to the nitrogen atom of a ring selected from the piperazine and imidazolidin-2-one rings.
Claim 13
Dependent Claim
57 words
Self-extinguishing polymeric compositions based on thermoplastic polymers, comprising an antiflame additive a component of which is a nitrogen-containing product in the form of an oligomer or a polymer insoluble in water, and in which the repeating monomeric unit contains a --CO-- group attached to the nitrogen atom of a ring selected from the piperazine and imidazolidin-2-one rings.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |