CA2545203A1 - Transparent and translucent crosslinked propylene-based elastomers, and their production and use - Google Patents

Transparent and translucent crosslinked propylene-based elastomers, and their production and use

Info

Publication number
CA2545203A1
CA2545203A1 CA 2545203 CA2545203A CA2545203A1 CA 2545203 A1 CA2545203 A1 CA 2545203A1 CA 2545203 CA2545203 CA 2545203 CA 2545203 A CA2545203 A CA 2545203A CA 2545203 A1 CA2545203 A1 CA 2545203A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
elastomer
crosslinked
less
propylene
preferably
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.)
Granted
Application number
CA 2545203
Other languages
French (fr)
Other versions
CA2545203C (en )
Inventor
Sudhin Datta
Abdelhadi Sahnoune
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Chemical Patents Inc
Original Assignee
Exxonmobil Chemical Patents Inc.
Sudhin Datta
Abdelhadi Sahnoune
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • C08F210/18Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/02Soles; Sole and heel units characterised by the material
    • A43B13/04Soles; Sole and heel units characterised by the material plastics, rubber or vulcanised fibre
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/04Monomers containing three or four carbon atoms
    • C08F210/06Propene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65908Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/674Nonwoven fabric with a preformed polymeric film or sheet
    • Y10T442/678Olefin polymer or copolymer sheet or film [e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.]

Abstract

The present invention provides a crosslinked propylene-based elastomer having an isotactic propylene triad tacticity of from 65 to 95%, a melting point by DSC equal to or less than 110~C, a heat of fusion of from 5 J/g to 50 J/g, and a haze% per 100 mil thickness of 95 or less, and comprising at least 75 wt%
propylene-derived units, at least 5 wt% ethylene-derived units, and optionally 10 wt% or less of dime-derived units. In an embodiment, the present invention is a blend of a continuous phase of the crosslinked propylene-based elastomer and a dispersed phase of a crystalline polymeric compound. The present invention also provides elastomeric compositions comprising a crosslinked propylene-based elastomer as described herein and 100 parts by weight or less of a pigment per 100 parts of polymer. The present invention also provides films, fibers, nonwovens, molded objects, and extruded forms which include any of the inventive compositions described herein.

Claims (14)

1. A crosslinked elastomer comprising:
(a) propylene-derived units in an amount of at least 75 wt%, based on the combined weight of components (a), (b), and (c);
(b) ethylene-derived units in an amount of at least 5 wt%, based on the combined weight of components (a), (b), and (c); and (c) optionally 10 wt% or less of diene-derived units, based on the combined weight of components (a), (b), and (c);
wherein the elastomer has an isotactic propylene triad tacticity of from 65 to 95%, a melting point by DSC equal to or less than 110°C, a heat of fusion of from 5 J/g to 50 J/g, and a haze% per 100 mil thickness of 95 or less, preferably 60 or less, more preferably 40 or less, and especially 20 or less.
2. The crosslinked elastomer according to claim 1, wherein the crosslinked elastomer of claim 1, wherein the elastomer, prior to crosslinking, has an MFR
@230°C of from 0.1 to 400, and preferably from 5 to 150.
3. The crosslinked elastomer according to claim 1 or 2, wherein the crosslinked elastomer has an ultimate tensile strength of 0.5 MPa or greater.
4. The crosslinked elastomer according to any of the preceding claims, wherein the crosslinked elastomer has an ultimate tensile strength (TS), measured in MPa, of 0.5 or greater.
5. The crosslinked elastomer according to any of the preceding claims, wherein the elastomer comprises diene-derived units in an amount of from 0.3 to wt%, based on the combined weight of components (a), (b), and (c).
6. The crosslinked elastomer according to any of the preceding claims, wherein the ratio of the Shore A hardness to MFR@230°C of the elastomer, prior to crosslinking, and the ultimate tensile strength (TS), measured in MPa, of the crosslinked elastomer, satisfy the following equation:
(Shore A hardness/MFR@230°C)<=1.66*TS - B1, where B1 is 0, preferably 3.33, more preferably 6.66, and especially 10.
7. The crosslinked elastomer according to any of the preceding claims, wherein the crosslinked elastomer has a Die C tear strength (Die C), measured in lb force/inch, of 50 or greater.
8. The crosslinked elastomer according to any of the preceding claims, wherein the ratio of the Shore A hardness to MFR@230°C of the elastomer, prior to crosslinking, and the Die C tear strength (Die C), measured in lb force/inch, of the crosslinked elastomer, satisfy the following equation:
(Shore A hardness/MFR@230°C)<=0.2*Die C - B2, where B2 is 0, preferably 10, more preferably 20, and especially 30.
9. A blend composition comprising a continuous phase formed by the crosslinked elastomer of any of the preceding claims and a dispersed phase of a crystalline polymer component having a melting point by DSC of 115°C or higher, and a heat of fusion of 50 J/g or higher, and is selected from the group consisting of propylene homopolymers, propylene graft copolymers, propylene block copolymers, propylene random copolymers, and mixtures thereof, and is preferably isotactic polypropylene.
10. An elastomeric composition comprising the composition according to any of the preceding claims and 100 parts by weight or less of a pigment, preferably a colored pigment, per 100 parts of polymer.
11. An article comprising the composition according to any of the preceding claims, wherein the article has a haze% per 100 mil thickness of 95 or less, preferably 80 or less, more preferably 50 or less, and especially 30 or less.
12. The article according to claim 11, wherein the article is an extruded article or a molded object.
13. The blend composition as set forth in Claim 9 wherein said blend composition has been heated to a level sufficient to melt substantially the entirety of the crystalline polymer component.
14. The blend composition as set forth in Claim 9 wherein said crystalline polymer component is isotactic polypropylene and wherein said blend has been heated to at least 150°C.
CA 2545203 2003-11-14 2004-11-12 Transparent and translucent crosslinked propylene-based elastomers, and their production and use Active CA2545203C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US51997503 true 2003-11-14 2003-11-14
US60/519,975 2003-11-14
PCT/US2004/037875 WO2005049672A1 (en) 2003-11-14 2004-11-12 Transparent and translucent crosslinked propylenebased elastomers, and their production and use

Publications (2)

Publication Number Publication Date
CA2545203A1 true true CA2545203A1 (en) 2005-06-02
CA2545203C CA2545203C (en) 2010-02-02

Family

ID=34619409

Family Applications (2)

Application Number Title Priority Date Filing Date
CA 2545203 Active CA2545203C (en) 2003-11-14 2004-11-12 Transparent and translucent crosslinked propylene-based elastomers, and their production and use
CA 2546075 Active CA2546075C (en) 2003-11-14 2004-11-12 Propylene-based elastomers and uses thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA 2546075 Active CA2546075C (en) 2003-11-14 2004-11-12 Propylene-based elastomers and uses thereof

Country Status (6)

Country Link
US (4) US7928165B2 (en)
EP (2) EP1687346B1 (en)
JP (2) JP5244316B2 (en)
CN (2) CN1890276B (en)
CA (2) CA2545203C (en)
WO (3) WO2005049670A1 (en)

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