US5116891A
Expired / Lapsed
US
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Flame-resistant polymeric compositions
Assignee: Hoechst AG
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Filing: 1991-01-18
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Granted: 1992-05-26
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Expires: 2011-01-18
Abstract
Abstract Flame-resistant polymeric compositions, preferably olefinic polymers and/or copolymers, containing 8 to 45% by weight of a flameproofing system. This flameproofing system comprises at least one phosphorus component and a monomeric triazinylpiperazine. The phosphours component is a free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate, while the triazinylpiperazine used is a pulverulent bistriazinylpiperazine.
Inventors
- 👤 Werner Eberspach
- 👤 Daniel Scharf
- 👤 Manfred Lysek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34926; C08K3/00; C08K3/32
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
194 words
A flame-resistant polymeric composition which contains 8 to 45% by weight of a flameproofing system which comprises at least one free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate and a monomeric, pulverulent bistriazinylpiperazine of the formula ##STR4## in which X and Y are identical or different --OR 1 , --SR 1 or --NR 2 R 3 radicals where R 1 is a C 1 - to C 18 -alkyl group, a C 5 - to C 18 -cycloalkyl group, a phenyl or naphthyl group which is optionally substituted by inert radicals, or a C 7 - to C 18 -aralkyl group; R 2 and R 3 , independently of one another, are a C 1 - to C 3 -alkyl group, a C 5 - to C 18 -cycloalkyl group, a phenyl or naphthyl group which is optionally substituted by inert radicals, or a C 7 - to C 18 -aralkyl group, or NR 2 R 3 is piperidinyl of the formula ##STR5## or morpholinyl of the formula ##STR6## wherein 5 to 30% by weight of ammonium polyphosphate and 3 to 15% by weight of bistriazinyl piperazine, both based on the flame-resistant polymeric composition, are present.
Claim 2
Dependent Claim
194 words
A flame-resistant polymeric composition which contains 8 to 45% by weight of a flameproofing system which comprises at least one free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate and a monomeric, pulverulent bistriazinylpiperazine of the formula ##STR4## in which X and Y are identical or different --OR 1 , --SR 1 or --NR 2 R 3 radicals where R 1 is a C 1 - to C 18 -alkyl group, a C 5 - to C 18 -cycloalkyl group, a phenyl or naphthyl group which is optionally substituted by inert radicals, or a C 7 - to C 18 -aralkyl group; R 2 and R 3 , independently of one another, are a C 1 - to C 3 -alkyl group, a C 5 - to C 18 -cycloalkyl group, a phenyl or naphthyl group which is optionally substituted by inert radicals, or a C 7 - to C 18 -aralkyl group, or NR 2 R 3 is piperidinyl of the formula ##STR5## or morpholinyl of the formula ##STR6## wherein 5 to 30% by weight of ammonium polyphosphate and 3 to 15% by weight of bistriazinyl piperazine, both based on the flame-resistant polymeric composition, are present.
Claim 3
Dependent Claim
12 words
A flame-resistant polymeric composition as claimed in claim 1, comprising olefinic polymers.
Claim 4
Dependent Claim
12 words
A flame-resistant polymeric composition according to claim 1, which comprises olefinic copolymers.
Claim 5
Dependent Claim
37 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the flameproofing system additionally contains a pulverulent cosynergist, selected from the group comprising tris(2-hydroxyethyl) isocyanurate, pentaerythritol, dipentaerythritol, melamine cyanurate, melamine, melamine pentylate, piperazine pyrophosphate, dicyandiamide or cellulose.
Claim 6
Dependent Claim
26 words
A flame-resistant polymeric composition as claimed in claim 4, wherein up to 7% by weight of a cosynergist, based on the flame-resistant polymeric compositions, are present.
Claim 7
Dependent Claim
57 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the flameproofing system additionally contains up to 3% by weight, based on the flame-resistant polymeric compositions, of a polymer selected from the group comprising polyester, polyamide, polyacrylonitrile, polybenzimidazole, polyphenylene sulfide and polytetrafluoroethylene, in the form of a micropowder having a particle size of less than 10 μm.
Claim 8
Dependent Claim
44 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the flameproofing system additionally contains up to 3% by weight, based on the flame-resistant polymeric compositions, of at least one oxide, hydroxide or carbonate of a metal or metalloid in the form of powders.
Claim 9
Dependent Claim
30 words
A flame-resistant polymeric composition as claimed in claim 7, wherein the pulverulent oxides, hydroxides or carbonates of a metal or metalloid have particle sizes of from 0.01 to 10 μm.
Claim 10
Dependent Claim
44 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the flameproofing system additionally contains up to 2% by weight, based on the flame-resistant polymeric compositions, of at least one stabilising agent, selected from the group comprising polynuclear phenols, dialkyl sulfides and aromatic phosphites.
Claim 11
Dependent Claim
29 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the flameproofing system additionally contains up to 1% by weight, based on the flame-resistant polymeric compositions, of calcium stearate.
Claim 12
Dependent Claim
63 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the ammonium polyphosphate of the formula (NH 4 PO 3 ) n has a chain length n of from 200 to 1000, a phosphorus content of 31.5±0.5% by weight, a nitrogen content of 14.5±0.5% by weight, and has a water-soluble content of less than 10%--measured in 10% strength aqueous suspension at 25° C.
Claim 13
Dependent Claim
28 words
A flame-resistant polymeric composition as claimed in claim 11, wherein the flameproofing system contains 5 to 30% by weight of ammonium polyphosphate, based on the flame-resistant polymeric compositions.
Claim 14
Dependent Claim
66 words
A flame-resistant polymeric composition as claimed in claim 1, wherein the ammonium polyphosphate of the formula (NH 4 PO 3 ) n has a chain length n of from 200 to 1000, is microencapsulated with melamine-formaldehyde resin and has a phosphorus content of 29.0±1%, a nitrogen content of 16.5±1% and has a water-soluble content of less than 9.3%--measured in 10% strength aqueous suspension at 25° C.
Claim 15
Dependent Claim
13 words
A flame-resistant polymeric composition as claimed in claim 1, wherein N,N'-bis(2,4-dimethoxy-1,3,5-triazin-6-yl)piperazine is used.
Claim 16
Dependent Claim
13 words
A flame-resistant polymeric composition as claimed in claim 15, wherein N,N'-bis(2,4-diethoxy-1,3,5-triazin-6-yl)piperazine is used.
Claim 17
Dependent Claim
13 words
A flame-resistant polymeric composition as claimed in claim 1, wherein N,N'-bis(2,4-dimorpholinyl-1,3,5-triazin-6-yl)piperazine is used.
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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) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |