CA1267244A - Thermoplastic/elastomeric composition - Google Patents
Thermoplastic/elastomeric compositionInfo
- Publication number
- CA1267244A CA1267244A CA000474353A CA474353A CA1267244A CA 1267244 A CA1267244 A CA 1267244A CA 000474353 A CA000474353 A CA 000474353A CA 474353 A CA474353 A CA 474353A CA 1267244 A CA1267244 A CA 1267244A
- Authority
- CA
- Canada
- Prior art keywords
- weight
- parts
- polypropylene
- propylene
- calcium carbonate
- 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
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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08K5/01—Hydrocarbons
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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)
Abstract
ABSTRACT OF THE DISCLOSURE
A thermoplastic/elastomer composition useful for the manufacture of air, heater and air conditioner ducts, and air protective covers includes 45 to 70 parts by weight polypropylene, 20 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer (EPDM) 0 to 10 parts by weight low density polyethylene, 0 to 10 parts by weight calcium carbonate, 0 to 5 parts by weight oil and 1 part by weight stabilizer. The preferred compo-sition contains 47 parts by weight polypropylene, 45 parts by weight EPDM, 5 parts by weight CaCO3, 2 parts by weight oil and 1 part by weight stabilizer.
A thermoplastic/elastomer composition useful for the manufacture of air, heater and air conditioner ducts, and air protective covers includes 45 to 70 parts by weight polypropylene, 20 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer (EPDM) 0 to 10 parts by weight low density polyethylene, 0 to 10 parts by weight calcium carbonate, 0 to 5 parts by weight oil and 1 part by weight stabilizer. The preferred compo-sition contains 47 parts by weight polypropylene, 45 parts by weight EPDM, 5 parts by weight CaCO3, 2 parts by weight oil and 1 part by weight stabilizer.
Description
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This invention rela-tes to a plastic composition, and in particular to a thermoplastic/elastomer composition.
While not limited to such use, a compositio~ in accord-ance with the present invention is particularly intended for use in air, heater and air conditioner ducts. The conventional wire suppor-ted ducts covered with cloth or rubberized material are expensive in terms of both raw materials and labour. Such ducts are produced by forming a wire structure, and then securing a cover material thereto.
A review of the patent literature discloses compositions which, in some respects are similar to the composition proposed by the present invention. The compositions are described in Canadian P.atents Nos. 713,134, issued to E.I. du Pont de Nemours and Company on July 6, 1965; 814,515, issued to Union Carbide Corporation on June 3, 1969; 881,597, issued to Esso Research and Engineering Company on September 21, 1971 and United States Patents Nos. 3,806,558, issued to Uniroyal Inc. on April 23, 1974; 3,835,201, issued to Wniroyal Inc. on September 10, 1974;
3,919, 358, issued to The B.F. Goodrich Company on November 11, 1975; 3,957,919 issued to Copolymer Rubber & Chemical Corporation ; on May 18, 1976; 4,059,654, issued to Copolymer Rubber & Chemical Corporation on November 22, 1977 and 4,113,806, issued to Exxon Research & Engine ring Co. on September 12, 1978. In spite of the existence of such composltions, there still exists a need 25~ ~for~a plastic composltion~with good processability and thermal stability, and which can be used in blow molding equipment.
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An article such as a duct formed of a composition of ~, the type described herein must be capable of maintainlng structural integrity in extreme conditions of heat and cold.
The duct must also be able to withstand the turbulence created by hot air currents passing therethrough.
The object oE the present invention is to meet the above defined needs by providing a readily processable, thermally stable blow moldable thermoplastic/elastomeric composition, which is relatively inexpensive to produce.
Accordingly,,the present invention relates to a plastic composition comprising 47 to 70 parts by weight polypropylene, 20 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer 0 to 10 paæts by weight low density polyeth~lene, 0 to 10 parts by weight calcium carbonate, 0 to 5 parts by weight oil and 1 part by weight stabilizer. ~ ;
The invention will'now be described in greater detail with reference to the following Table 1, which provides a list , of sixteen compositions.
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TAsLE 1 (all in parts by weight) Sample No. Polypropylene EPDM LDPE CaC03* Oil Stabilizer
This invention rela-tes to a plastic composition, and in particular to a thermoplastic/elastomer composition.
While not limited to such use, a compositio~ in accord-ance with the present invention is particularly intended for use in air, heater and air conditioner ducts. The conventional wire suppor-ted ducts covered with cloth or rubberized material are expensive in terms of both raw materials and labour. Such ducts are produced by forming a wire structure, and then securing a cover material thereto.
A review of the patent literature discloses compositions which, in some respects are similar to the composition proposed by the present invention. The compositions are described in Canadian P.atents Nos. 713,134, issued to E.I. du Pont de Nemours and Company on July 6, 1965; 814,515, issued to Union Carbide Corporation on June 3, 1969; 881,597, issued to Esso Research and Engineering Company on September 21, 1971 and United States Patents Nos. 3,806,558, issued to Uniroyal Inc. on April 23, 1974; 3,835,201, issued to Wniroyal Inc. on September 10, 1974;
3,919, 358, issued to The B.F. Goodrich Company on November 11, 1975; 3,957,919 issued to Copolymer Rubber & Chemical Corporation ; on May 18, 1976; 4,059,654, issued to Copolymer Rubber & Chemical Corporation on November 22, 1977 and 4,113,806, issued to Exxon Research & Engine ring Co. on September 12, 1978. In spite of the existence of such composltions, there still exists a need 25~ ~for~a plastic composltion~with good processability and thermal stability, and which can be used in blow molding equipment.
:
~' ,. ; .
; .. .. .
. .
': ~' , :
:: . ' ''~ - ' .''.. '' . ~
An article such as a duct formed of a composition of ~, the type described herein must be capable of maintainlng structural integrity in extreme conditions of heat and cold.
The duct must also be able to withstand the turbulence created by hot air currents passing therethrough.
The object oE the present invention is to meet the above defined needs by providing a readily processable, thermally stable blow moldable thermoplastic/elastomeric composition, which is relatively inexpensive to produce.
Accordingly,,the present invention relates to a plastic composition comprising 47 to 70 parts by weight polypropylene, 20 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer 0 to 10 paæts by weight low density polyeth~lene, 0 to 10 parts by weight calcium carbonate, 0 to 5 parts by weight oil and 1 part by weight stabilizer. ~ ;
The invention will'now be described in greater detail with reference to the following Table 1, which provides a list , of sixteen compositions.
.
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~20 ~
.
: ~ , .::
, ~ ~ - 2 -:
~ ~ :
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,;, - : , ,, : :-. :
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: ~ ':, - - :: . -,. ~
~i72~.
TAsLE 1 (all in parts by weight) Sample No. Polypropylene EPDM LDPE CaC03* Oil Stabilizer
2 70 255
3 65 255 5
4 60 255 5 5 ~ 65 2010 5
5~ 35 - 5 5 12 50 ~0 - 10 EPDM - ethylene-propylene-diene rubber (a terpolymer elastomer made from ethylene-propylene diene monomer)-LDPE - low density polyethylene-* - it is preferable to use treated CaC03 i.e. calcium carbonate treated with a coupling agent, e.g. Umycarb IJ.F.T. (trademark).
~25 ~ - 3 -::
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.
Treated CaC03 disperses more readily in the polypropylene phase, increases output (production) and results in a more uniformly finished article than untreated CaC03.
Oil ~ any suitable oil such as Sunpar 125 (a trademark for a Sunco Inc. paraffinic oil).
Stabilizer - the stabilizer is an antioxidant such as Irganox 1010 (a registered trademark for a phenol type antioxidant).
I,aboratory testing of the compositions listed in Table 1 produced the results listed in Table 2. The samples used in the tests were cut from continuous extrusion films.
Table 2 Sample Tensile Strength Elongation Hardness No~ (mpa) - (%) (Shore D) 1 25.4 962 61 2 26.8 920 62 3 27.0 875 62 4 25.4 921 57 24.9 860 59
~25 ~ - 3 -::
~::
.. . ..
.
Treated CaC03 disperses more readily in the polypropylene phase, increases output (production) and results in a more uniformly finished article than untreated CaC03.
Oil ~ any suitable oil such as Sunpar 125 (a trademark for a Sunco Inc. paraffinic oil).
Stabilizer - the stabilizer is an antioxidant such as Irganox 1010 (a registered trademark for a phenol type antioxidant).
I,aboratory testing of the compositions listed in Table 1 produced the results listed in Table 2. The samples used in the tests were cut from continuous extrusion films.
Table 2 Sample Tensile Strength Elongation Hardness No~ (mpa) - (%) (Shore D) 1 25.4 962 61 2 26.8 920 62 3 27.0 875 62 4 25.4 921 57 24.9 860 59
6 29.8 900 59
7 28.5 967 58
8 25.8 855 59
9 23.9 845 60 25.0 905 55 11 2~.0 895 55 12 24.5 860 57 ~25 13 22.1 775 54 14 23.6 775 53 26.2 830 54 16 22.0 ` ~60 51 ., .-" ~
72L~
A duct was procluced using Sample No. 16, and the finished produc-t was tested to give the results given in Table 3.
Specific Sample Tensile Strength Elongation Elardness Gravity No (mpa) _ (%) (Shore D? (g/cc)_ 16 20+2 700+50 45+3 0.925 It will be noted that in some of the samples, low density polyethylene is substituted for the oil. The polyethylene is preferred in many respects. It is more difficult to produce homogeneous mixture with oil than with low density polyethylene in pellet form. Oil is more volatile than polyethylene, and may result in pin holes in the finished product when used in high termperat~re (350 -- 450F) blow molding. Oil degrades more quickly than low density polyethylene, and, because of its viscosity, it is more difficult to feed oil than low density polyethylene.
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A duct was procluced using Sample No. 16, and the finished produc-t was tested to give the results given in Table 3.
Specific Sample Tensile Strength Elongation Elardness Gravity No (mpa) _ (%) (Shore D? (g/cc)_ 16 20+2 700+50 45+3 0.925 It will be noted that in some of the samples, low density polyethylene is substituted for the oil. The polyethylene is preferred in many respects. It is more difficult to produce homogeneous mixture with oil than with low density polyethylene in pellet form. Oil is more volatile than polyethylene, and may result in pin holes in the finished product when used in high termperat~re (350 -- 450F) blow molding. Oil degrades more quickly than low density polyethylene, and, because of its viscosity, it is more difficult to feed oil than low density polyethylene.
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Claims (5)
EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS
FOLLOWS:
1. A plastic composition comprising 47 to 65 parts by weight polypropylene, 20 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer, 0 to 10 parts by weight low density polyethylene, 5 to 10 parts by weight calcium carbonate, 0 to 5 parts by weight hydrocarbon processing oil and 1 part by weight antioxidant stabilizer.
2. A plastic composition comprising 47 to 65 parts by weight polypropylene, 20 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer, 0 to 10 parts by weight low density polyethylene, 5 to 10 parts by weight calcium carbonate, 0 to 3 parts by weight hydrocarbon processing oil and 1 part by weight antioxidant stabilizer.
3. A plastic composition comprising 47 to 55 parts by weight polypropylene, 35 to 45 parts by weight ethylene-propylene-diene terpolymer elastomer, 5 to 10 parts by weight calcium carbonate, 0 to 3 parts by weight hydrocarbon processing oil and 1 part by weight antioxidant stabilizer.
4. A plastic composition comprising 55 to 65 parts by weight polypropylene, 20 to 35 parts by weight ethylene-propylene-diene terpolymer elastomer, 5 to 10 parts by weight low density polyethylene, 5 to 7 parts by weight calcium carbonate, 0 to 3 parts by weight hydrocarbon processing oil and 1 part by weight antioxidant stabilizer.
5. A plastic composition comprising 47 parts by weight polypropylene, 45 parts by weight ethylene-propylene-diene terpolymer elastomer, 5 parts by weight calcium carbonate, 2 parts by weight hydrocarbon processing oil and 1 part by weight antioxidant stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000474353A CA1267244A (en) | 1985-02-14 | 1985-02-14 | Thermoplastic/elastomeric composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000474353A CA1267244A (en) | 1985-02-14 | 1985-02-14 | Thermoplastic/elastomeric composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1267244A true CA1267244A (en) | 1990-03-27 |
Family
ID=4129838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000474353A Expired CA1267244A (en) | 1985-02-14 | 1985-02-14 | Thermoplastic/elastomeric composition |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1267244A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021705A1 (en) * | 1999-09-21 | 2001-03-29 | Dsm N.V. | A thermoplastic vulcanisate, the thermoplastic vulcanisate containing a foaming agent and foam of the thermoplastic vulcanisate |
| US9309031B2 (en) | 2009-09-07 | 2016-04-12 | The Procter & Gamble Company | Bottle cap made from a material comprising polypropylene, particulate calcium carbonate and additives |
| CN115558199A (en) * | 2021-12-27 | 2023-01-03 | 江苏永顺新材料科技有限公司 | Material for tap water pipeline and preparation method thereof |
| CN115558197A (en) * | 2021-12-26 | 2023-01-03 | 江苏永顺新材料科技有限公司 | Reinforced polypropylene material and application thereof in sewage pipes |
-
1985
- 1985-02-14 CA CA000474353A patent/CA1267244A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001021705A1 (en) * | 1999-09-21 | 2001-03-29 | Dsm N.V. | A thermoplastic vulcanisate, the thermoplastic vulcanisate containing a foaming agent and foam of the thermoplastic vulcanisate |
| US6750292B2 (en) | 1999-09-21 | 2004-06-15 | Dsm N.V. | Thermoplastic vulcanisate, the thermoplastic vulcanisate containing a foaming agent and foam of the thermoplastic vulcanisate |
| US9309031B2 (en) | 2009-09-07 | 2016-04-12 | The Procter & Gamble Company | Bottle cap made from a material comprising polypropylene, particulate calcium carbonate and additives |
| CN115558197A (en) * | 2021-12-26 | 2023-01-03 | 江苏永顺新材料科技有限公司 | Reinforced polypropylene material and application thereof in sewage pipes |
| CN115558199A (en) * | 2021-12-27 | 2023-01-03 | 江苏永顺新材料科技有限公司 | Material for tap water pipeline and preparation method thereof |
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| MKEX | Expiry |