US4312805A
Expired / Lapsed
US
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Self-extinguishing polymer compositions
Assignee: Montedison SpA
•
Filing: 1978-01-10
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Granted: 1982-01-26
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Expires: 1998-01-10
Abstract
Abstract There are provided self-extinguishing compositions comprising, for each 100 parts of a polyolefin as such or containing inert fillers and/or other additives, from 5 to 30 parts of an ammonium or amine phosphate, from 3 to 20 parts of one or more nitrogen organic compound which, upon heating in the presence of the ammonium or amine phosphate, decompose to form a non-dripping carbonaceous mass, the nitrogen-containing compounds being selected from among (a) reaction products of aliphatic or aromatic diisocyanates or triisocyanates and organic compounds having reactive hydrogen atoms; (b) a mixture of (a) and/or an aldehyde/amine or aldehyde/urea reaction product with a polyamide; and (c) a mixture of an amine with a polyamide. The foregoing compositions provide acceptable levels of self-extinguishing properties without being corrosive or emitting toxic smokes or gases in the proximity of an open flame.
Inventors
- 👤 Guido Bertelli
- 👤 Pierpaolo Roma
- 👤 Renato Locatelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:15
CPC Classifications
C; C08; C08L; C08L101/00; C08K; C08K3/00; C08K3/32; C08K5/00; C08K5/16; C08L2201/00; C08L2201/02; C08L61/00; C08L61/20; C08L61/26; C08L61/28; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
151 words
Self-extinguishing polymeric compositions, comprising for 100 parts of a polyolefin as such or containing inert fillers: (1) from 5 to 30 parts of ammonium or amine phosphate; and (2) from 3 to 20 parts of one or more nitrogen containing organic compounds which, on heating in the presence of said ammonium or amine phosphate, decompose under formation of a non-dripping carbonaceous mass, said nitrogen containing compound being selected from the group consisting of: (1) a mixture of a polyamide and melamine, (2) a mixture of a polyamide and a reaction product of melamine/formaldehyde, (3) a mixture of a polyamide and a reaction product of melamine/toluylene-2, 4-diisocyanate, (4) a mixture of a polyamide and laurylamine, (5) a mixture of a polyamide and diethanolamine, (6) a mixture of a polyamide and hexamethylene-tetramine, (7) a mixture of a polyamide and tributylamine and (8) a mixture of a polyamide and a reaction product of urea/formaldehyde.
Claim 2
Dependent Claim
151 words
Self-extinguishing polymeric compositions, comprising for 100 parts of a polyolefin as such or containing inert fillers: (1) from 5 to 30 parts of ammonium or amine phosphate; and (2) from 3 to 20 parts of one or more nitrogen containing organic compounds which, on heating in the presence of said ammonium or amine phosphate, decompose under formation of a non-dripping carbonaceous mass, said nitrogen containing compound being selected from the group consisting of: (1) a mixture of a polyamide and melamine, (2) a mixture of a polyamide and a reaction product of melamine/formaldehyde, (3) a mixture of a polyamide and a reaction product of melamine/toluylene-2, 4-diisocyanate, (4) a mixture of a polyamide and laurylamine, (5) a mixture of a polyamide and diethanolamine, (6) a mixture of a polyamide and hexamethylene-tetramine, (7) a mixture of a polyamide and tributylamine and (8) a mixture of a polyamide and a reaction product of urea/formaldehyde.
Claim 3
Dependent Claim
29 words
Polymeric compositions according to claim 1, in which said ammonium phosphate is a polyphosphate having the composition (NH 4 PO 3 ) n wherein n is greater than 50.
Claim 4
Dependent Claim
20 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and melamine.
Claim 5
Dependent Claim
24 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and a reaction product of melamine/formaldehyde.
Claim 6
Dependent Claim
24 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and a reaction product of melamine/toluylene-2,4-diisocyanate.
Claim 7
Dependent Claim
20 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and laurylamine.
Claim 8
Dependent Claim
20 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and diethanolamine.
Claim 9
Dependent Claim
20 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and hexamethylene-tetramine.
Claim 10
Dependent Claim
20 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and tributylamine.
Claim 11
Dependent Claim
24 words
Polymeric compositions according to claim 1, in which the nitrogen containing compound is a mixture of a polyamide and a reaction product of urea/formaldehyde.
Claim 12
Dependent Claim
12 words
Polymeric compositions according to claim 1, in which the polyolefin is polypropylene.
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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) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |