US4193945A
Expired / Lapsed
US
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Self-extinguishing polymeric compositions
Assignee: Montedison SpA
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Filing: 1977-05-25
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Granted: 1980-03-18
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Expires: 1997-05-25
Abstract
Abstract The present invention relates to self-extinguishing compositions based on olefin polymers or copolymers, such as polypropylene, polyethylene, ethylene-propylene copolymers, EPDM rubbers and other polymers, such as polystyrene, ABS resins, polyethylene terephthalate, polybutylene terephthalate, polycarbonates, and polyamides. More particularly, the present invention relates to self-extinguishing polymeric compositions comprising, for 100 parts of a polymer as such or containing inert fillers and/or other additives: (1) 5 to 30 parts of an ammonium phosphate; and (2) 3 to 20 parts of one or more nitrogen containing compounds selected from a group consisting of (a) those containing the groups >C=O and/or >C=S and >NH inserted in a cyclic structure; (b) those containing the group -CO-NH-(CH2)n- in which n is an integer having a value of at least 1, and (c) the reaction products of compounds (a) and/or (b) with aldehydes.
Inventors
- 👤 Guido Bertelli
- 👤 Pierpaolo Roma
- 👤 Renato Locatelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:55
CPC Classifications
C; C08; C08L; C08L101/00; C08K; C08K13/00; C08K13/02; C08K3/00; C08K3/32; C08K5/00; C08K5/16; C08K5/21; C08K5/34; C08K5/36; C08K5/39; C08L61/00; C08L61/20; C08L61/26; C08L2201/00; C08L2201/02; C08L61/22; C08L61/24; C08L77/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
109 words
Self-extinguishing polymeric compositions comprising a polymer selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadiene-styrene resins and blends of polypropylene and EPDM rubber, and a combination of (1) from 5 to 30 parts by weight, based on 100 parts of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based o 100 parts of the total composition, of one or more nitrogen containing compounds selected from the group consisting of (a) those containing >C═O and/or >C═S and >NH inserted in a cyclic structure; (b) polyamides, and (c) water insoluble reaction products of compound (a) with an aliphatic aldehyde.
Claim 2
Dependent Claim
109 words
Self-extinguishing polymeric compositions comprising a polymer selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadiene-styrene resins and blends of polypropylene and EPDM rubber, and a combination of (1) from 5 to 30 parts by weight, based on 100 parts of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based o 100 parts of the total composition, of one or more nitrogen containing compounds selected from the group consisting of (a) those containing >C═O and/or >C═S and >NH inserted in a cyclic structure; (b) polyamides, and (c) water insoluble reaction products of compound (a) with an aliphatic aldehyde.
Claim 3
Dependent Claim
32 words
Polymeric compositions according to claim 1, in which a polyphosphate having the composition (NH 4 PO 3 ) n , wherein n is higher than 50, is employed as the ammonium polyphosphate.
Claim 4
Dependent Claim
16 words
Polymeric compositions according to claim 1, in which ethylene-thiourea is used as a nitrogen containing compound.
Claim 5
Dependent Claim
16 words
Polymeric compositions according to claim 1, in which hexahydropyrimidine-2-one is used as a nitrogen containing compound.
Claim 6
Dependent Claim
16 words
Polymeric compositions according to claim 1, in which hydantoin is used as a nitrogen containing compound.
Claim 7
Dependent Claim
19 words
Polymeric compositions according to claim 1, in which a polyamide from epsilon-caprolactam is used as a nitrogen containing compound.
Claim 8
Dependent Claim
22 words
Polymeric compositions according to claim 1, in which a polyamide from hexamethylenediamine and adipic acid is employed as a nitrogen containing compound.
Claim 9
Dependent Claim
21 words
Polymeric compositions according to claim 1, in which a water insoluble reaction product ethylenethiourea/formaldehyde is employed as a nitrogen containing compound.
Claim 10
Dependent Claim
21 words
Polymeric compositions according to claim 1, in which a water insoluble reaction product ethyleneurea/formaldehyde is employed as a nitrogen containing compound.
Claim 11
Dependent Claim
21 words
Polymeric compositions according to claim 1, in which a water insoluble reaction product hexahydropyrimidine-2-one/formaldehyde is used as a nitrogen containing compound.
Claim 12
Dependent Claim
12 words
Polymeric compositions according to claim 1, in which the polymer is polypropylene.
Claim 13
Dependent Claim
12 words
Polymeric compositions according to claim 1, in which the polymer is polyethylene.
Claim 14
Dependent Claim
12 words
Polymeric compositions according to claim 1, in which the polymer is polystyrene.
Claim 15
Dependent Claim
17 words
Polymeric compositions according to claim 1, in which the polymer is a resin of the ABS type.
Claim 16
Dependent Claim
15 words
Polymeric compositions according to claim 1, in which the polymer is a blend polypropylene/EPDM rubber.
Claim 17
Dependent Claim
95 words
Self-extiguishing polymeric compositions comprising a polymer selected from among polypropylene, polyethylene, polystyrene, acrylonitrile-butadiene-styrene resins and blends of polypropylene and EPDM rubber, and (1) from 5 to 30 parts by weight, based on 100 parts of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based on 100 parts of the total composition, of a nitrogen containing compound selected from among ethylenethiourea, hexahydropyrimidine-2-one, hydantoin, a water insoluble reaction product of any of the foregoing with an aliphatic aldehyde, and a polyamide from hexamethylenediamine and adipic acid.
Claim 18
Dependent Claim
95 words
Self-extiguishing polymeric compositions comprising a polymer selected from among polypropylene, polyethylene, polystyrene, acrylonitrile-butadiene-styrene resins and blends of polypropylene and EPDM rubber, and (1) from 5 to 30 parts by weight, based on 100 parts of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based on 100 parts of the total composition, of a nitrogen containing compound selected from among ethylenethiourea, hexahydropyrimidine-2-one, hydantoin, a water insoluble reaction product of any of the foregoing with an aliphatic aldehyde, and a polyamide from hexamethylenediamine and adipic acid.
Claim 19
Dependent Claim
85 words
Self-extinguishing polymeric compositions comprising a polymer selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadienestyrene resins and blends of polypropylene and EPDM rubber, and a combination of (1) from 5 to 30 parts by weight, based on 100 parts by weight of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based on 100 parts of the total composition, of ethylenethiourea or a water insoluble reaction product of said ethylene-thiourea with an aliphatic aldehyde.
Claim 20
Dependent Claim
85 words
Self-extinguishing polymeric compositions comprising a polymer selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadienestyrene resins and blends of polypropylene and EPDM rubber, and a combination of (1) from 5 to 30 parts by weight, based on 100 parts by weight of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based on 100 parts of the total composition, of ethylenethiourea or a water insoluble reaction product of said ethylene-thiourea with an aliphatic aldehyde.
Claim 21
Dependent Claim
84 words
Self-extinguishing polymeric compositions comprising a polymer selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadienestyrene resins and blends of polypropylene and EPDM rubber, and a combination of (1) from 5 to 30 parts by weight, based on 100 parts by weight of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based on 100 parts of the total composition, of hexahydro-pyrimidine-2-one or a water insoluble reaction product of hexahydropyrimidine-2-one with an aliphatic aldehyde.
Claim 22
Dependent Claim
84 words
Self-extinguishing polymeric compositions comprising a polymer selected from the group consisting of polypropylene, polyethylene, polystyrene, acrylonitrile-butadienestyrene resins and blends of polypropylene and EPDM rubber, and a combination of (1) from 5 to 30 parts by weight, based on 100 parts by weight of the total composition, of an ammonium phosphate or ammonium polyphosphate; and (2) from 3 to 20 parts by weight, based on 100 parts of the total composition, of hexahydro-pyrimidine-2-one or a water insoluble reaction product of hexahydropyrimidine-2-one with an aliphatic aldehyde.
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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) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |