EP0432161A1 - Polymer composition - Google Patents
Polymer compositionInfo
- Publication number
- EP0432161A1 EP0432161A1 EP19890907164 EP89907164A EP0432161A1 EP 0432161 A1 EP0432161 A1 EP 0432161A1 EP 19890907164 EP19890907164 EP 19890907164 EP 89907164 A EP89907164 A EP 89907164A EP 0432161 A1 EP0432161 A1 EP 0432161A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer
- volume
- polymer composition
- polycyanoaryl ether
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 229920000642 polymer Polymers 0.000 title claims abstract description 22
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 26
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000412 polyarylene Polymers 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- -1 polyphenylene Polymers 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 6
- 229920000265 Polyparaphenylene Polymers 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- 150000002825 nitriles Chemical class 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000012783 reinforcing fiber Substances 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- RAOSIAYCXKBGFE-UHFFFAOYSA-K [Cu+3].[O-]P([O-])([O-])=O Chemical compound [Cu+3].[O-]P([O-])([O-])=O RAOSIAYCXKBGFE-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- WOWHQCILRXHLFN-UHFFFAOYSA-M calcium cadmium(2+) fluoride sulfide Chemical compound [F-].[Ca+2].[S-2].[Cd+2] WOWHQCILRXHLFN-UHFFFAOYSA-M 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
Definitions
- This invention relates to a polymer composition and more particularly to a novel composition including a polyarylene sulphide.
- Polarylene sulphides particularly polyphenylene sulphide
- Polarylene sulphides are useful in bearing applications because these polymers have a good affinity for lubricants so that under marginal conditions lubricants are retained on the surface.
- these polymers are not strong enough for some applications.
- the present invention provides a polymer ' composition which comprises,
- thermoplastic polymer matrix of polyarylene sulphide and polycyanoaryl ether the ratio of the two polymers by volume being in the range 95:5 to 5:95
- reinf ⁇ rcing fibre in an amount of 0 to 30 per cent by volume of the total composition
- the total amount of b) plus c) in the composition beinj in the range 15 to 40 per cent by volume.
- the polyarylene sulphide polymer is a thermoplastic polymer containing aryl groups linked by -5- linkages, the preferred polymer being polyphenylene sulphide of which the general forumula is
- the polycyanoaryl ether is composed of aryl groups linked by ether linkages, at least a proportion of the aryl groups carrying a -CN group attached directly to the aromatic ring.
- An example of a polycyanoaryl ether is a polymer which has units of the formula
- a particular example of a polycyanoaryl ether is a polyether nitrile of general formula
- the ratio by volume of the polyarylene sulphide to the polycyanoaryl ether is in the range 50:50 to 5:95.
- the polycyanoaryl ether is a thermoplastic polymer of high strength and temperature resistance, and provides extra strength to the polymer composition without serious detriment to the lubricant retention properties of the polyarylene sulphide.
- the reinforcing fibres are short lengths of fibre and may be inorganic fibres such as glass, or carbon fibres, or temperature resistant organic fibres such as aramid fibres.
- the preferred reinforcing fibre is carbon fibre and the preferred fibre length is in the range 0.5mm to 10mm.
- Friction and wear modifiers may be included to control the frictional properties of the material.
- Friction and wear modifiers are graphite, powdered bronze, polytetrafluoroethylene (PTFE) powder, alumina, antimony oxide, barium sulphate, boron nitride, cadmium sulphide calcium fluoride, fine ceramic powder, clay, chromic oxide, powdered coke, copper phosphate, metal flake, metal powders, mica, molybdenum disulphide, phthalocyanines , polyoxybenzoate , silicon carbide, silicone, talc, wollastonite, zinc sulphide.
- PTFE polytetrafluoroethylene
- a preferred friction and wear modifier is oil filled exfoliated graphite as described in our co-pending UK Patent Application No 8812511. This consists of dry exfoliated graphite containing 0.25 to 10 times its own weight of the lubricant.
- compositions of the invention may be prepared by conventional compounding techniques and are suitable for use in injection moulding or extrusion. They may be used, for example, in the manufacture of injection moulded bushes and thrust washers, or may be extruded as a ribbon which can then be laminated with a metal backing to produce a plastic lined metal bearing shell.
- composition suitable for the manufacture of a bush by injection moulding is as follows, all parts being parts by volume, Polyphenylene Sulphide 20 parts
- the • composition is compounded in a conventional compounding extruder using a barrel temperature of 360°C, and may then be used for injection moulding of bushes, at a barrel temperature of 350°C to 370°C.
- Polyether nitrile ID300 is a polycyanoaryl ether of general formula
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)
- Sliding-Contact Bearings (AREA)
Abstract
On a mis au point une composition de polymère ayant une matrice polymère comprenant un sulfure de polyarylène et un éther polycyanoaryle dont le rapport en volume est compris entre 95:5 et 5:95, et contenant des fibres de renforcement et/ou des agents modifiant le frottement et l'usure dont la quantité totale représente 15 à 40 % de la composition en volume.A polymer composition has been developed having a polymer matrix comprising a polyarylene sulfide and a polycyanoaryl ether whose volume ratio is between 95: 5 and 5:95, and containing reinforcing fibers and / or modifying agents friction and wear, the total amount of which represents 15 to 40% of the composition by volume.
Description
Polymer composition
This invention relates to a polymer composition and more particularly to a novel composition including a polyarylene sulphide.
Polarylene sulphides, particularly polyphenylene sulphide, are useful in bearing applications because these polymers have a good affinity for lubricants so that under marginal conditions lubricants are retained on the surface. However, these polymers are not strong enough for some applications.
Accordingly the present invention provides a polymer' composition which comprises,
a) a thermoplastic polymer matrix of polyarylene sulphide and polycyanoaryl ether, the ratio of the two polymers by volume being in the range 95:5 to 5:95
b) reinfυrcing fibre in an amount of 0 to 30 per cent by volume of the total composition
c) friction and wear modifiers in an amount of 0 to 30 per cent by volume of the total composition
the total amount of b) plus c) in the composition beinj in the range 15 to 40 per cent by volume.
The polyarylene sulphide polymer is a thermoplastic polymer containing aryl groups linked by -5- linkages, the preferred polymer being polyphenylene sulphide of which the general forumula is
The polycyanoaryl ether is composed of aryl groups linked by ether linkages, at least a proportion of the aryl groups carrying a -CN group attached directly to the aromatic ring. An example of a polycyanoaryl ether is a polymer which has units of the formula
where - Ar- may be igr
-@- -©- - a
Such polymers are described in more detail in European Patent Applications Nos 0187638,0193003 and 0243000 of Idemitsu Kosan Company Limited.
A particular example of a polycyanoaryl ether is a polyether nitrile of general formula
Preferably the ratio by volume of the polyarylene sulphide to the polycyanoaryl ether is in the range 50:50 to 5:95. The polycyanoaryl ether is a thermoplastic polymer of high strength and temperature resistance, and provides extra strength to the polymer composition without serious detriment to the lubricant retention properties of the polyarylene sulphide.
The reinforcing fibres are short lengths of fibre and may be inorganic fibres such as glass, or carbon fibres, or temperature resistant organic fibres such as aramid fibres. The preferred reinforcing fibre is carbon fibre and the preferred fibre length is in the range 0.5mm to 10mm.
Friction and wear modifiers may be included to control the frictional properties of the material. Examples of such materials are graphite, powdered bronze,
polytetrafluoroethylene (PTFE) powder, alumina, antimony oxide, barium sulphate, boron nitride, cadmium sulphide calcium fluoride, fine ceramic powder, clay, chromic oxide, powdered coke, copper phosphate, metal flake, metal powders, mica, molybdenum disulphide, phthalocyanines , polyoxybenzoate , silicon carbide, silicone, talc, wollastonite, zinc sulphide.
A preferred friction and wear modifier is oil filled exfoliated graphite as described in our co-pending UK Patent Application No 8812511. This consists of dry exfoliated graphite containing 0.25 to 10 times its own weight of the lubricant.
The compositions of the invention may be prepared by conventional compounding techniques and are suitable for use in injection moulding or extrusion. They may be used, for example, in the manufacture of injection moulded bushes and thrust washers, or may be extruded as a ribbon which can then be laminated with a metal backing to produce a plastic lined metal bearing shell.
An example of a composition suitable for the manufacture of a bush by injection moulding is as follows, all parts being parts by volume,
Polyphenylene Sulphide 20 parts
Polyether nitrile ID300*
(Idemitsu Kosan Co Ltd) 40 parts
Carbon Fibre (2mm) 15 parts
Polytetrafluoroethylene (powder) 15 parts Powdered Bronze (<300 mesh) 10 parts
The • composition is compounded in a conventional compounding extruder using a barrel temperature of 360°C, and may then be used for injection moulding of bushes, at a barrel temperature of 350°C to 370°C.
* Polyether nitrile ID300 is a polycyanoaryl ether of general formula
having a melting point of 340°C.
Claims
1. A polymer composition which comprises
a) a thermoplastic polymer matrix of polyarylene sulphide and a second thermoplastic polymer, b) reinforcing fibre in an amount of 0 to 30 per cent by volume of the total composition and c) friction and wear modifiers in an amount of 0 to 30 per cent by volume of the total composition
characterised in that the second thermoplastic polymer in the matrix is a polycyanoaryl ether, the ratio of the two polymers in the matrix by volume being in the range 95:5 to 5:95 and the total amount of b) plus c) in the composition is in the range 15 to 40 per cent by volume.
A polymer composition according to claim 1 wherein the polyarylene sulphide is polyphenylene sulphide.
3. A polymer composition according to claim 1 or 2 wherein the polycyanoaryl ether is a polymer which has units of the formula
where - Ar- may be -®-> and
A polymer composition according to claim 3 wherein the polycyanoaryl ether is a polyether nitrile of general formula
A polymer composition according to any one of claims 1 to 4 wherein the ratio by volume of polyarylene sulphide to the polycyanoaryl ether is in the range 50:50 to 5:95
6. A polymer composition according to any one of the preceding claims wherein the reinforcing fibre is carbon fibre.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8815992A GB2220416A (en) | 1988-07-05 | 1988-07-05 | Wear resistant polymer compositions |
| GB8815992 | 1988-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0432161A1 true EP0432161A1 (en) | 1991-06-19 |
Family
ID=10639906
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19890202202 Withdrawn EP0361567A3 (en) | 1988-07-05 | 1989-07-03 | Polymer composition |
| EP19890907164 Withdrawn EP0432161A1 (en) | 1988-07-05 | 1989-07-03 | Polymer composition |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19890202202 Withdrawn EP0361567A3 (en) | 1988-07-05 | 1989-07-03 | Polymer composition |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP0361567A3 (en) |
| GB (1) | GB2220416A (en) |
| WO (1) | WO1990000577A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0391559A (en) * | 1989-09-04 | 1991-04-17 | Idemitsu Kosan Co Ltd | Resin composition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0193003A1 (en) * | 1985-02-08 | 1986-09-03 | Idemitsu Kosan Company Limited | Resin composition |
| JPS61192764A (en) * | 1985-02-21 | 1986-08-27 | Idemitsu Kosan Co Ltd | Lubricating resin composition |
| EP0243000B1 (en) * | 1986-03-25 | 1990-10-03 | Idemitsu Kosan Company Limited | Polycyanoaryl ether, method for preparing the same and uses thereof |
-
1988
- 1988-07-05 GB GB8815992A patent/GB2220416A/en not_active Withdrawn
-
1989
- 1989-07-03 WO PCT/EP1989/000768 patent/WO1990000577A1/en not_active Ceased
- 1989-07-03 EP EP19890202202 patent/EP0361567A3/en not_active Withdrawn
- 1989-07-03 EP EP19890907164 patent/EP0432161A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9000577A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990000577A1 (en) | 1990-01-25 |
| GB2220416A (en) | 1990-01-10 |
| EP0361567A2 (en) | 1990-04-04 |
| GB8815992D0 (en) | 1988-08-10 |
| EP0361567A3 (en) | 1991-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19910625 |