WO1985005626A1 - Flame retardant compositions - Google Patents
Flame retardant compositions Download PDFInfo
- Publication number
- WO1985005626A1 WO1985005626A1 PCT/GB1985/000220 GB8500220W WO8505626A1 WO 1985005626 A1 WO1985005626 A1 WO 1985005626A1 GB 8500220 W GB8500220 W GB 8500220W WO 8505626 A1 WO8505626 A1 WO 8505626A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- additive composition
- composition according
- copolymer
- flame
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34928—Salts
Definitions
- This invention relates to additive compositions for imparting flame retardency to polymers and copolymers
- the present invention accordingly provides an additive composition capable of imparting flame retar ⁇ dency to a polymer or copolymer derived from at least one ethylenically unsaturated monomer and to compositions 25 containing such polymers or copolymers, characterised in that it comprises: i) 15 to 50 wt % of a nitrogenous organic base or salt thereof solid at room temperature and containing at least two nitrogen atoms per molecule; ⁇ u ii) ⁇ 5 to 60 wt % of one or more of red phosphorus, phosphorus pentoxide, an ammonium poly- phosphate, an ammonium orthophosphate or a phosphoramide and iii) 7 to 30 wt % of one or more saturated aliphatic polyols containing at least four carbon atoms and at least four hydroxyl groups, each hydroxyl group being attached to a different carbon atom, all said percent ⁇ ages being based on the total additive composition.
- compositions are preferably incorporated into the olefinic polymers in the thermoplastic state.
- the exact proportion included depends upon the actual composition of the additive as well as upon the chemical composition of the polymer.
- the polymer composition in its final state comprises35-85 wt % of the polymer or copolymer and 15 to 65 wt % in total of the additives (i) to (iii), but the additives may be supplied in master batches, mixed with smaller amounts of polymer or with another compatible carrier such as a wax.
- a master batch might for example contain up to 90 wt % of the additives.
- the preferred maximum content of the additives in the final polymer composition is 45 wt %.
- the polymer in which the additive composition of the invention is used is an addition homopolymer or copolymer derived from at least one ethylenically unsaturated monomer such as an aliphatic mono- or polyene, e.g. a diene.
- the base polymer may be a copolymer of an ethy ⁇ lenically unsaturated monomer such as an aliphatic olefinic hydrocarbon with another copolymerisable monomer.
- base polymers examples include polyolefins ⁇ such as polyethylene, ethylene-propyiene copolymer, polypropylene, polybutene, ethylene-vinyl acetate copolymer, poly butadiene and butadiene-isoprene co ⁇ polymer and other polymers and copolymers such as poly ⁇ styrene , ABS resins and styrene/olefin block copoly ⁇ mers.
- the polymers can be cross linked.
- the nitrogenous organic compon'ent (i) is pre ⁇ ferably a melamine salt or mixture of two or more mela- mine salts.
- melamine salts are preferably salts with halogen-free polybasic inorganic acids such as ortho- phosphoric acid (melamine and dimelamine phosphates), sulphuric acid and boric acid.
- melamine phosphate and melamine borate may be used in equal pro ⁇ portions by weight.
- Other nitrogen compounds which may be used include melamine itself and guanidine.
- This component is preferably included in an amount of 30 to 40 wt %.
- the preferred compound is ammonium polyphosphate.
- the preferred content of the phosphorus component is 30 to 50 wt %.
- the aliphatic polyols that are used as constit- uents of the present compositions contain at least four carbon atoms and four hydroxyl groups in the molecule. Preferably these compounds have 4 to 6 carbon atoms and 4 to 6 hydroxyl groups in the molecule. The number of carbon atoms is preferably either equal to or greater than the number of hydroxyl groups.
- suitable polyols are erythritol, pentaerythritol, di- and tri- pentaerythritol, mannitol and sorbitol as well as mixtures of any two or more of these polyols. These compounds intumesce and are important constituents of the compositions.
- the preferred content of this component is 15 to 25 wt %.
- the solid materials as particles or finely divided form are preferably first admixed and the resul ⁇ ting blend then blended with the polymer.
- the resul ⁇ ting blend then blended with the polymer.
- 70-85 % by weight of the latter may be blended with a total of 15-30 % by weight of the other three ingredients to form an intimate dispersion which constitutes a flame retardant composition.
- Suitable means for carrying out blending of polymer and additives is a high speed blender such as a Henschel mixer, a Pappenmeyer mixer or a Baker Perkins dridisperser.
- the base polymers are essentially thermoplastic materials
- the base polymer and the additives may be compounded in a Ba ⁇ bury mixer or in a single or twin screw compounding extruder or a multiroll mixer.
- a preferred additive composition in accordance with the invention is as follows:-
- Such a composition can for example be used to prepare a polymer composition as follows:
- the pentaerythritol may be replaced by a mixture of pentaerythritols e.g. a mixture of pentaerythritol and dipentaerythritol.
- pentaerythritol e.g. a mixture of pentaerythritol and dipentaerythritol.
- it may be replaced by a mixture consisting of 90% by weight pentaerythritol and 10% by weight dipentaerythritol.
- compositions for example fillers such as talc, antistatic agents, pigments and stabilizers such as hindered phenol antioxidants.
- a surprising feature of the invention is the relatively high minimum content of the polyol component which is used. Any significant reduction below the 7% minimum content for this component in the additive component in the additive composition gives unsatis ⁇ factory results. This 7% figure is however considerably higher than would be expected from the known uses of compounds of this type in other fields such as textiles and coatings.
- the following Examples and references illustrate the invention. The percentages given are by weight.
- An additive was prepared by blending:
- a fire-retardant polypropylene (PP) composition was prepared as in Example 1 but replacing pentaerythritol with dipentaerythritol. Tested as in Example 1, this material met the requirements of classification VO.
- Example 3 A fire-retardant polypropylene (PP) composition was prepared as in Example 1 but replacing pentaerythritol with dipentaerythritol. Tested as in Example 1, this material met the requirements of classification VO.
- An additive was prepared by blending:
- Example 4 An additive was prepared by blending: Ammonium polyphosphate 52.91%
- An additive was prepared by blending:
- Flame-retardant polymer compositions in accord ⁇ ance with the invention have a wide variety of uses, for example in injection-moulded products, extruded cables, wire insulation and sheathing, extruded and calendered sheets, extruded sections and flow-moulded articles such as bottles.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB848413929A GB8413929D0 (en) | 1984-05-31 | 1984-05-31 | Flame retardant compositions |
GB8413929 | 1984-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1985005626A1 true WO1985005626A1 (en) | 1985-12-19 |
Family
ID=10561756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1985/000220 WO1985005626A1 (en) | 1984-05-31 | 1985-05-23 | Flame retardant compositions |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0183759A1 (en) |
JP (1) | JPS61502763A (en) |
AU (1) | AU578954B2 (en) |
ES (1) | ES8609414A1 (en) |
GB (1) | GB8413929D0 (en) |
WO (1) | WO1985005626A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0415371A2 (en) | 1989-08-28 | 1991-03-06 | Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica | Self-extinguishing polymeric compositions |
EP0471937A2 (en) * | 1990-08-21 | 1992-02-26 | Firma Carl Freudenberg | Substrates for copper foils of flexible circuit boards |
US5162394A (en) * | 1990-09-18 | 1992-11-10 | 501 Chemco Inc. | Fire-retardant chemical compositions |
GB2259707A (en) * | 1991-09-17 | 1993-03-24 | Albright & Wilson | Flame - retardant polymeric material |
US5409976A (en) * | 1992-04-24 | 1995-04-25 | Minnesota Mining And Manufacturing Company | Simple two-component zero-halogen flame retardant |
EP0707036A1 (en) | 1994-10-11 | 1996-04-17 | Montell North America Inc. | Flame-retardant polymer compositions and salts of cyanuric acid with triazine compounds useful in the preparation of the compositions |
WO2001075907A1 (en) * | 2000-03-30 | 2001-10-11 | Pirelli Cavi E Sistemi S.P.A. | Self-extinguishing cable and fire retardant composition used therein |
DE10112155A1 (en) * | 2001-03-14 | 2002-09-19 | Budenheim Rud A Oetker Chemie | Derivative of phosphoric acid ester substitute or adduct or mixtures thereof, process for their preparation and their use |
US6797200B2 (en) | 2000-03-30 | 2004-09-28 | Pirelli Cavi E Sistemi S.P.A. | Self-extinguishing cable and fire retardant composition used therein |
WO2018019762A1 (en) | 2016-07-28 | 2018-02-01 | Sabic Global Technolgies B.V. | Flame retardant propylene composition |
WO2022232451A1 (en) * | 2021-04-30 | 2022-11-03 | The Texas A&M University System | Manufacturing of high-performance intumescent flame-retardant polymers |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3732377A1 (en) * | 1987-09-25 | 1989-04-06 | Hoechst Ag | FLAME-RESISTANT POLYMERS |
GB8811947D0 (en) * | 1988-05-20 | 1988-06-22 | Ici Plc | Filled polymer composition |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3810862A (en) * | 1972-02-14 | 1974-05-14 | Phillips Petroleum Co | Char-forming,flame retardant polyolefin composition |
FR2403357A1 (en) * | 1977-09-14 | 1979-04-13 | Montedison Spa | COMPOSITION BASED ON THERMOPLASTIC POLYMER WITH IMPROVED FLAME RESISTANCE |
EP0073488A2 (en) * | 1981-08-26 | 1983-03-09 | MONTEDISON S.p.A. | Self extinguishing polyolefinic compositions |
-
1984
- 1984-05-31 GB GB848413929A patent/GB8413929D0/en active Pending
-
1985
- 1985-05-23 AU AU43593/85A patent/AU578954B2/en not_active Ceased
- 1985-05-23 JP JP50230485A patent/JPS61502763A/en active Pending
- 1985-05-23 EP EP19850902589 patent/EP0183759A1/en not_active Withdrawn
- 1985-05-23 WO PCT/GB1985/000220 patent/WO1985005626A1/en not_active Application Discontinuation
- 1985-05-30 ES ES543674A patent/ES8609414A1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3810862A (en) * | 1972-02-14 | 1974-05-14 | Phillips Petroleum Co | Char-forming,flame retardant polyolefin composition |
FR2403357A1 (en) * | 1977-09-14 | 1979-04-13 | Montedison Spa | COMPOSITION BASED ON THERMOPLASTIC POLYMER WITH IMPROVED FLAME RESISTANCE |
EP0073488A2 (en) * | 1981-08-26 | 1983-03-09 | MONTEDISON S.p.A. | Self extinguishing polyolefinic compositions |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0415371A2 (en) | 1989-08-28 | 1991-03-06 | Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica | Self-extinguishing polymeric compositions |
EP0471937A2 (en) * | 1990-08-21 | 1992-02-26 | Firma Carl Freudenberg | Substrates for copper foils of flexible circuit boards |
EP0471937A3 (en) * | 1990-08-21 | 1993-04-21 | Firma Carl Freudenberg | Substrates for copper foils of flexible circuit boards |
US5162394A (en) * | 1990-09-18 | 1992-11-10 | 501 Chemco Inc. | Fire-retardant chemical compositions |
GB2259707A (en) * | 1991-09-17 | 1993-03-24 | Albright & Wilson | Flame - retardant polymeric material |
EP0533102A1 (en) * | 1991-09-17 | 1993-03-24 | ALBRIGHT & WILSON UK LIMITED | Flame retardant polymeric material |
GB2259707B (en) * | 1991-09-17 | 1996-01-10 | Albright & Wilson | Flame-retardant polymeric material |
US5409976A (en) * | 1992-04-24 | 1995-04-25 | Minnesota Mining And Manufacturing Company | Simple two-component zero-halogen flame retardant |
EP0707036A1 (en) | 1994-10-11 | 1996-04-17 | Montell North America Inc. | Flame-retardant polymer compositions and salts of cyanuric acid with triazine compounds useful in the preparation of the compositions |
WO2001075907A1 (en) * | 2000-03-30 | 2001-10-11 | Pirelli Cavi E Sistemi S.P.A. | Self-extinguishing cable and fire retardant composition used therein |
US6797200B2 (en) | 2000-03-30 | 2004-09-28 | Pirelli Cavi E Sistemi S.P.A. | Self-extinguishing cable and fire retardant composition used therein |
DE10112155A1 (en) * | 2001-03-14 | 2002-09-19 | Budenheim Rud A Oetker Chemie | Derivative of phosphoric acid ester substitute or adduct or mixtures thereof, process for their preparation and their use |
US7214811B2 (en) | 2001-03-14 | 2007-05-08 | Chemische Fabrik Budenheim Kg | Derivative of phosphoric acid ester salt or phosphoric acid ester adduct or mixtures thereof, method for the production thereof and their use |
WO2018019762A1 (en) | 2016-07-28 | 2018-02-01 | Sabic Global Technolgies B.V. | Flame retardant propylene composition |
CN109844003A (en) * | 2016-07-28 | 2019-06-04 | Sabic环球技术有限责任公司 | Fire retardant propylene compositions |
CN109844003B (en) * | 2016-07-28 | 2021-05-11 | Sabic环球技术有限责任公司 | Flame retardant propylene compositions |
US11008440B2 (en) | 2016-07-28 | 2021-05-18 | Sabic Global Technologies B.V. | Flame retardant propylene composition |
WO2022232451A1 (en) * | 2021-04-30 | 2022-11-03 | The Texas A&M University System | Manufacturing of high-performance intumescent flame-retardant polymers |
Also Published As
Publication number | Publication date |
---|---|
EP0183759A1 (en) | 1986-06-11 |
GB8413929D0 (en) | 1984-07-04 |
ES543674A0 (en) | 1986-08-16 |
AU4359385A (en) | 1985-12-31 |
ES8609414A1 (en) | 1986-08-16 |
JPS61502763A (en) | 1986-11-27 |
AU578954B2 (en) | 1988-11-10 |
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