CA1107876A - Thermoplastic mouldable 3-polymer component alloys - Google Patents
Thermoplastic mouldable 3-polymer component alloysInfo
- Publication number
- CA1107876A CA1107876A CA322,128A CA322128A CA1107876A CA 1107876 A CA1107876 A CA 1107876A CA 322128 A CA322128 A CA 322128A CA 1107876 A CA1107876 A CA 1107876A
- Authority
- CA
- Canada
- Prior art keywords
- psi
- polyamide
- glass fibers
- strength
- homopolymer
- 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.)
- Expired
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 8
- 239000004416 thermosoftening plastic Substances 0.000 title description 3
- 229920001169 thermoplastic Polymers 0.000 title description 2
- 229920000642 polymer Polymers 0.000 title 1
- 239000004952 Polyamide Substances 0.000 claims abstract description 7
- 229920001577 copolymer Polymers 0.000 claims abstract description 7
- 229920002647 polyamide Polymers 0.000 claims abstract description 7
- 239000004683 Homopolymer polyamide Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 6
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 12
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000009757 thermoplastic moulding Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- -1 copper halide Chemical class 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate Chemical compound [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000000071 blow moulding Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
- 238000007666 vacuum forming Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 10
- 239000004677 Nylon Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229940073584 methylene chloride Drugs 0.000 description 2
- 229910021594 Copper(II) fluoride Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- BDQFPKXDEBMNFM-UHFFFAOYSA-N N=C=O.ClCCl Chemical compound N=C=O.ClCCl BDQFPKXDEBMNFM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- GWFAVIIMQDUCRA-UHFFFAOYSA-L copper(ii) fluoride Chemical compound [F-].[F-].[Cu+2] GWFAVIIMQDUCRA-UHFFFAOYSA-L 0.000 description 1
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide 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
- 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
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
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)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides a thermoplastic mat-erial for use under conditions demanding high strength at elev-ated temperatures, e.g., for under-the-hood automotive or truck components. The material is essentially a three-component alloy of a homopolymer polyamide, a copolymer polyamide, and polyure-thane reinforced with a relatively small amount of glass fibers and containing normal amounts of heat stabilizers, ultraviolet screen materials, etc. The material can be formed by any con-ventional forming method, e.g. by extrusion, injection molding, blow molding, vacuum forming, and the like. Finished articles made from the material are characterized by elevated deflection temperatures (400°F at 66 psi and 300°F at 264 psi) and high tensile and flexural strengths.
The present invention provides a thermoplastic mat-erial for use under conditions demanding high strength at elev-ated temperatures, e.g., for under-the-hood automotive or truck components. The material is essentially a three-component alloy of a homopolymer polyamide, a copolymer polyamide, and polyure-thane reinforced with a relatively small amount of glass fibers and containing normal amounts of heat stabilizers, ultraviolet screen materials, etc. The material can be formed by any con-ventional forming method, e.g. by extrusion, injection molding, blow molding, vacuum forming, and the like. Finished articles made from the material are characterized by elevated deflection temperatures (400°F at 66 psi and 300°F at 264 psi) and high tensile and flexural strengths.
Description
11~7876 In recent years, the use of plastics in vehicular applications both automotive and truck, has increased remark-ably. The increased plastic usage has been due primarily to the necessity to reduce the overall weight of the vehicle, to-gether with the elimination of expensive machined or die cast metal components. Automotive requirements place stringent de-mands upon the plastic materials used in vehicles, but perhaps the most stringent demands are those for under~the-hood uses.
Conditions within the engine compartment are particularly diffi-cult due to the temperature variations which may be encountered.Temperatures may run as high a~ 400F and as low as -50F.
One typical example is a conduit extending through a truck engine compartment to connect an exterior air cleaner or filter to the engine air intake. Such a conduit is exposed to the widely variant temperatures within the engine compartment, while at the same time it must be able to withstand the collaps-ing forces exerted thereon if the air filter were to be complete-ly blocked by accreted contaminants while the engine is still running and drawing a vacuum in the conduit. Prior to the pre-sent invention, such conduits were machined steel castings, dueto the stringent strength-at~temperature requirements.
` It would be desirable to manufacture such a conduit by blow molding from a plastic composition, if a composition could be provided having the necessary high melt point, tensile strength, flexural strength and ability to resist deflection at elevated temperatures.
The present invention now provides such a composition which, in essence, is an alloy of a homopolymer polyamide, such as 6/6 nylon, a copolymer polyamide, such as a copolymer of 6/6 nylon and 6 nylon, and polyurethane. This alloy has incorporat-~7876 ed therein a minimal amount, on the order of 2~ to 12% by weight of chopped glass fibers, plus the normal heat stabilizers, ultraviolet train components, and the like.
According to the present invention, then, there is provided a thermoplastic molding compound consisting essentially of from 15% to 26% of a homopolymer polyamide, from 35% to 65% copolymer polyamide, 9% to 18~ polyurethane, from 2% to 12% chopped glass fibers, from 1/2% to 1.5% metallic heat stabi-lizers, .25% to 1.25% methylene chloride, from 1~ to 2% carbon black and .25~ to 1.25% isocyanate resin.
The composition of the present invention is a thermo-plastic alloy and can be processed by any desired, normal ther-moplastic processing technique. Components from the composition can be injection molded, extruded, blow molded, vacuum formed and the like. Particularly interesting is the blow molding aspect of the composition since it makes possible the formation of complex shapes, sueh as the above described conduit from a freely extruded, tubular parison.
The composition possesses a unique combination of physical properties and thermal properties summarized in the following table:
Specific gravity1.105 Melt Point (F) 410-420 Tensile Strength (psi) 21,500 Tensile Yield (psi)19,200 Flexural Strength (psi) 16,500 Flexural Modulus (psi) 425,000 Notch Izod Impact Strength (ft. lbs./in.) 1.8 ~7~376 Deflection Temperature:
At 66 psi 400 F
At 264 psi 300 F
At 264 psi -50 F
As above explained, the composition of the present invention is an alloy having three essential components, falling within the following limits:
COMPO~ENTS PERCENT BY WEIGHT
Homopolymer Polyamide 15 - 26 10 Copolymer Polyamide 35 - 65 Urethane 9 - 18 Chopped Glass Fiber 2 - 12 : Also incorporated into the composition is a heat : stabilizer for the polyamide. Generally a copper halide, such as copper chloride, copper fluoride, or copper iodide in an amount ranging from about one-half to about one and one-half percent - an ultraviolet screen material such as carbon black in an amount ranging from about one percent to about two percent ~: - isocyanate (such as Uroflex* R 07 - 06 resin available from Basf Wyandotte Corporation of Wyandotte, Michigan) in an amount ranging from .25 percent to 1.25 percent isocyanate - and methyl-ene chloride (available from Product Sol (an incorporated company) of Birmingham, Michigan) in an amount ranging from .25 percent to 1.25 percent.
The alloy also has unusual chemical resistance in that is unaffected by aromatic hydrocarbons, aliphatic hydrocar-bons, oil, gasoline, grease, ketones and esters.
As a preferred compound falling within the above-identified generic composition above-given, the following is presented:
*Trademark 7~76 _N REDIENTPERCENT BY WEIGHT
6/6 Nylon 26 6/6 Nylon Plus 6 Nylon 55 Polyurethane 11 Heat Stabilizer Isocyanate Methylene Chloride Chopped Glass Fibers3 Carbon Black 2 r - 3a -
Conditions within the engine compartment are particularly diffi-cult due to the temperature variations which may be encountered.Temperatures may run as high a~ 400F and as low as -50F.
One typical example is a conduit extending through a truck engine compartment to connect an exterior air cleaner or filter to the engine air intake. Such a conduit is exposed to the widely variant temperatures within the engine compartment, while at the same time it must be able to withstand the collaps-ing forces exerted thereon if the air filter were to be complete-ly blocked by accreted contaminants while the engine is still running and drawing a vacuum in the conduit. Prior to the pre-sent invention, such conduits were machined steel castings, dueto the stringent strength-at~temperature requirements.
` It would be desirable to manufacture such a conduit by blow molding from a plastic composition, if a composition could be provided having the necessary high melt point, tensile strength, flexural strength and ability to resist deflection at elevated temperatures.
The present invention now provides such a composition which, in essence, is an alloy of a homopolymer polyamide, such as 6/6 nylon, a copolymer polyamide, such as a copolymer of 6/6 nylon and 6 nylon, and polyurethane. This alloy has incorporat-~7876 ed therein a minimal amount, on the order of 2~ to 12% by weight of chopped glass fibers, plus the normal heat stabilizers, ultraviolet train components, and the like.
According to the present invention, then, there is provided a thermoplastic molding compound consisting essentially of from 15% to 26% of a homopolymer polyamide, from 35% to 65% copolymer polyamide, 9% to 18~ polyurethane, from 2% to 12% chopped glass fibers, from 1/2% to 1.5% metallic heat stabi-lizers, .25% to 1.25% methylene chloride, from 1~ to 2% carbon black and .25~ to 1.25% isocyanate resin.
The composition of the present invention is a thermo-plastic alloy and can be processed by any desired, normal ther-moplastic processing technique. Components from the composition can be injection molded, extruded, blow molded, vacuum formed and the like. Particularly interesting is the blow molding aspect of the composition since it makes possible the formation of complex shapes, sueh as the above described conduit from a freely extruded, tubular parison.
The composition possesses a unique combination of physical properties and thermal properties summarized in the following table:
Specific gravity1.105 Melt Point (F) 410-420 Tensile Strength (psi) 21,500 Tensile Yield (psi)19,200 Flexural Strength (psi) 16,500 Flexural Modulus (psi) 425,000 Notch Izod Impact Strength (ft. lbs./in.) 1.8 ~7~376 Deflection Temperature:
At 66 psi 400 F
At 264 psi 300 F
At 264 psi -50 F
As above explained, the composition of the present invention is an alloy having three essential components, falling within the following limits:
COMPO~ENTS PERCENT BY WEIGHT
Homopolymer Polyamide 15 - 26 10 Copolymer Polyamide 35 - 65 Urethane 9 - 18 Chopped Glass Fiber 2 - 12 : Also incorporated into the composition is a heat : stabilizer for the polyamide. Generally a copper halide, such as copper chloride, copper fluoride, or copper iodide in an amount ranging from about one-half to about one and one-half percent - an ultraviolet screen material such as carbon black in an amount ranging from about one percent to about two percent ~: - isocyanate (such as Uroflex* R 07 - 06 resin available from Basf Wyandotte Corporation of Wyandotte, Michigan) in an amount ranging from .25 percent to 1.25 percent isocyanate - and methyl-ene chloride (available from Product Sol (an incorporated company) of Birmingham, Michigan) in an amount ranging from .25 percent to 1.25 percent.
The alloy also has unusual chemical resistance in that is unaffected by aromatic hydrocarbons, aliphatic hydrocar-bons, oil, gasoline, grease, ketones and esters.
As a preferred compound falling within the above-identified generic composition above-given, the following is presented:
*Trademark 7~76 _N REDIENTPERCENT BY WEIGHT
6/6 Nylon 26 6/6 Nylon Plus 6 Nylon 55 Polyurethane 11 Heat Stabilizer Isocyanate Methylene Chloride Chopped Glass Fibers3 Carbon Black 2 r - 3a -
Claims (2)
1. A thermoplastic molding compound consisting ess-entially of from 15% to 26% of a homopolymer polyamide, from 35% to 65% copolymer polyamide, 9% to 18% polyurethane, from 2% to 12% chopped glass fibers, from 1/2% to 1.5% metallic heat stabilizers, .25% to 1.25% methylene chloride, from 1%
to 2% carbon black and .25% to 1.25% isocyanate resin.
to 2% carbon black and .25% to 1.25% isocyanate resin.
2. A thermoplastic molding alloy consisting essenti-ally of about 26% homopolymer polyamide, about 55% copolymer polyamide, about 11% polyurethane, about 3% chopped glass fibers, about 1% copper halide heat stabilizer, about 1% iso-cyanate, about 1% methylene chloride, and about 2% carbon black having the following properties, as molded:
Specific Gravity 1.105 Melt Point 410-420 Tensile Strength (psi) 21,500 Tensile Yield (psi) 19,200 Flexural Strength (psi) 16,500 Flexural Modulus (psi) 425,000 Notch Izod Impact 425,000 Strength (ft. lbs./in.) 1.8 Deflection Temperature At 66 psi 400 F
At 264 psi 300 F
At 264 psi -50 F
Specific Gravity 1.105 Melt Point 410-420 Tensile Strength (psi) 21,500 Tensile Yield (psi) 19,200 Flexural Strength (psi) 16,500 Flexural Modulus (psi) 425,000 Notch Izod Impact 425,000 Strength (ft. lbs./in.) 1.8 Deflection Temperature At 66 psi 400 F
At 264 psi 300 F
At 264 psi -50 F
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/932,325 US4141879A (en) | 1977-07-28 | 1978-08-09 | Thermoplastic alloy |
| US932,325 | 1978-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1107876A true CA1107876A (en) | 1981-08-25 |
Family
ID=25462149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA322,128A Expired CA1107876A (en) | 1978-08-09 | 1979-02-23 | Thermoplastic mouldable 3-polymer component alloys |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1107876A (en) |
| FR (1) | FR2433035A1 (en) |
| GB (1) | GB2029430B (en) |
| IE (1) | IE48489B1 (en) |
| MX (1) | MX149407A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0657505A1 (en) * | 1993-12-10 | 1995-06-14 | Toyo Boseki Kabushiki Kaisha | A polyamide resin composition |
| CN112480652B (en) * | 2020-11-26 | 2022-12-27 | 金发科技股份有限公司 | Long glass fiber reinforced TPU/PA alloy material and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2007727B1 (en) * | 1968-05-03 | 1973-03-16 | Ppg Industries Inc | |
| JPS5748584B2 (en) * | 1972-08-05 | 1982-10-16 | ||
| FR2207955A1 (en) * | 1972-11-24 | 1974-06-21 | Aquitaine Total Organico | Polyurethane polyamide compsn. - for injection moulding ski boots or brake pipes |
| SU484236A1 (en) * | 1974-02-22 | 1975-09-15 | Предприятие П/Я А-7629 | Composition based on copolyamide and polyurethane |
| JPS544388B2 (en) * | 1974-04-26 | 1979-03-06 |
-
1979
- 1979-02-23 CA CA322,128A patent/CA1107876A/en not_active Expired
- 1979-02-23 GB GB7906653A patent/GB2029430B/en not_active Expired
- 1979-02-26 FR FR7904836A patent/FR2433035A1/en active Granted
- 1979-02-26 MX MX176724A patent/MX149407A/en unknown
- 1979-08-08 IE IE560/79A patent/IE48489B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2433035A1 (en) | 1980-03-07 |
| IE790560L (en) | 1980-02-09 |
| GB2029430B (en) | 1982-12-22 |
| GB2029430A (en) | 1980-03-19 |
| MX149407A (en) | 1983-11-03 |
| IE48489B1 (en) | 1985-02-06 |
| FR2433035B1 (en) | 1983-04-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |