Multiple Catalyst System for Olefin Polymerization and Polymers Produced Therefrom

• US 20140066567A1
• Filed: 09/10/2013
• Published: 03/06/2014
• Est. Priority Date: 10/15/2002
• Status: Active Grant

• Current Assignee: ExxonMobil Chemical Patents Inc. (Exxon Mobil Corporation)
• Original Assignee: ExxonMobil Chemical Patents Inc. (Exxon Mobil Corporation)
• Inventors: Jiang, Peijun, Canich, Jo Ann Marie, Abhari, Ramin, Garcia-Franco, Cesar Alberto, Johnsrud, David Raymond, Dekmezian, Armenag Hagop, Sims, Charles Lewis
• Granted Patent: US 8,957,159 B2
• Time in Patent Office: Days
• US Class Current: 524/525
• CPC Class Codes: C08F 10/00 Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• CPC Class Codes: C08F 110/06 Propene
• CPC Class Codes: C08F 210/06 Propene
• CPC Class Codes: C08F 210/16 Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• CPC Class Codes: C08F 236/20 unconjugated
• CPC Class Codes: C08F 2500/03 Narrow molecular weight distribution, i.e. Mw/Mn < 3
• CPC Class Codes: C08F 2500/05 Bimodal or multimodal molecular weight distribution
• CPC Class Codes: C08F 2500/09 Long chain branches
• CPC Class Codes: C08F 2500/12 Melt flow index or melt flow ratio
• CPC Class Codes: C08F 2500/15 Isotactic
• CPC Class Codes: C08F 2500/17 Viscosity
• CPC Class Codes: C08F 2500/20 Activation energy or enthalpy
• CPC Class Codes: C08F 4/63904 in combination with another component of C08F4/62
• CPC Class Codes: C08F 4/65904 in combination with another component of C08F4/64
• CPC Class Codes: C08F 4/65908 in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
• CPC Class Codes: C08F 4/65912 in combination with an organoaluminium compound
• CPC Class Codes: C08F 4/6592 containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
• CPC Class Codes: C08F 4/65927 two cyclopentadienyl rings being mutually bridged
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 57/02 Copolymers of mineral oil hydrocarbons
• CPC Class Codes: C09J 123/10 : Homopolymers or copolymers of propene
• CPC Class Codes: C09J 123/12 : Polypropene
• CPC Class Codes: C09J 2301/302 : the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
• CPC Class Codes: C09J 2301/312 : parameters being the characterizing feature
• CPC Class Codes: C09J 2301/416 : use of irradiation
• CPC Class Codes: C09J 2401/006 : in the substrate
• CPC Class Codes: C09J 2421/00 : Presence of unspecified rubber
• CPC Class Codes: C09J 2423/006 : in the substrate
• CPC Class Codes: C09J 2423/046 : in the substrate
• CPC Class Codes: C09J 2423/106 : in the substrate
• CPC Class Codes: C09J 2427/006 : in the substrate
• CPC Class Codes: C09J 2433/00 : Presence of (meth)acrylic polymer
• CPC Class Codes: C09J 5/00 : Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• CPC Class Codes: C09J 7/20 : characterised by their carriers
• CPC Class Codes: Y10S 526/943 : Polymerization with metallocene catalysts

Abstract

This invention relates to an adhesive comprising an olefin polymer composition comprising a first amorphous polymer having a crystallinity of 5% or less, prepared with a first catalyst; and a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, prepared with a second catalyst; and where the olefin polymer composition has a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of at least 7,000 to 80,000; a branching index (g′) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and a crystallinity of between 5 and 40%.

Claims

1. An adhesive comprising an olefin polymer composition comprising:

a) a first amorphous polymer having a crystallinity of 5% or less, wherein crystallinity is determined according to ASTM E 794-85, prepared with a first catalyst; and

b) a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, wherein crystallinity is determined according to ASTM E 794-85, prepared with a second catalyst; and

where the olefin polymer composition has;

a) a Dot T-Peel of 1 Newton or more on Kraft paper;

b) an Mw of at least 7,000 to 80,000;

c) a branching index (g′

) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and

d) a crystallinity of between 5 and 40%, wherein crystallinity is determined according to ASTM E 794-85.

2. The adhesive of claim 1, wherein the polymer composition has:

a) a Dot T-Peel of 2 Newton or more on Kraft paper;

b) a branching index of 0.4 to 0.8;

c) a Mw of 10,000 to 60,000; and

d) a crystallinity of between 10 and 30%, wherein crystallinity is determined according to ASTM E 794-85

3. The adhesive of claim 1, wherein the olefin polymer composition has:

a) an isotactic run length of 1 to 30,

b) a percent of r dyad of greater than 20%, and

c) a crystallinity of between 10 and 30%, wherein crystallinity is determined according to ASTM E 794-85.

4. The adhesive of claim 1, wherein the olefin polymer composition has a melt viscosity of 7000 mPa·

sec or less at 190°

C.

5. The adhesive of claim 1, wherein the olefin polymer composition has a melt viscosity of 5000 mPa·

sec or less at 190°

C.

6. The adhesive of claim 1, wherein the olefin polymer composition has a melt viscosity of between 250 and 6000 mPa·

sec at 190°

C.

7. The adhesive of claim 1, wherein the olefin polymer composition has a melt viscosity of between 500 and 3000 mPa·

sec at 190°

C.

8. The adhesive of claim 4, wherein the olefin polymer composition has a Tg of 0°

C. or less.

9. A pellet comprising the adhesive of claim 1.

10. The adhesive of claim 1, further comprising a functionalized wax.

11. The adhesive of claim 1, further comprising a wax.

12. The adhesive of claim 1, adhesive further comprising a hydrocarbon resin.

13. The adhesive of claim 1, further comprising one or more hydrocarbon resins selected from the group consisting of aliphatic hydrocarbon resins, aromatic modified aliphatic hydrocarbon resins, hydrogenated polycyclopentadiene resins, polycyclopentadiene resins, gum rosins, gum rosin esters, wood rosins, wood rosin esters, tall oil rosins, tall oil rosin esters, polyterpenes, aromatic modified polyterpenes, terpene phenolics, aromatic modified hydrogenated polycyclopentadiene resins, hydrogenated aliphatic resin, hydrogenated aliphatic aromatic resins, hydrogenated terpenes and modified terpenes, and hydrogenated rosin esters.

14. The adhesive of claim 1, further comprising hydrocarbon resin present at 1 weight % to about 80 weight %.

15. The adhesive of claim 1, further comprising hydrocarbon resin present at 2 weight % to about 40 weight %.

16. The adhesive of claim 1, further comprising hydrocarbon resin present at 3 weight % to 30 weight %.

17. The adhesive of claim 1, further comprising hydrocarbon resin present at 1 weight % to about 80 weight % selected from the group consisting of:

C5/C6 terpene resins, styrene terpenes, alpha-methyl styrene terpene resins, C9 terpene resins, aromatic modified C5/C6, aromatic modified cyclic resins, aromatic modified dicyclopentadiene based resins, resins obtained from the cationic polymerization of compositions containing one or more of the following monomers;

C5 diolefins;

C5 olefins;

C6 olefins, C9 vinylaromatics;

cyclics; and

or terpenes;

resins obtained by the thermal polymerization of dicyclopentadiene, and/or the thermal polymerization of dimers or oligomers of cyclopentadiene and/or methylcyclopentadiene, optionally with vinylaromatics.

18. The adhesive of claim 1, wherein the adhesive comprises less than 5% hydrocarbon resin.

19. The adhesive of claim 1, wherein the adhesive comprises less than 3% hydrocarbon resin.

20. The adhesive of claim 1, wherein the adhesive comprises less than 1% hydrocarbon resin.

21. The adhesive of claim 1, wherein the olefin polymer composition comprises propylene and one or more of butene, pentene, hexene, octene, nonene, and decene, wherein the olefin polymer comprises less than 50 mole % ethylene, and wherein the olefin polymer has a Dot T-Peel of 3 or more Newtons;

a viscosity of 8000 mPa·

sec or less at 190°

C.;

a branching index (g′

) of from 0.4 to 0.85 measured at the Mz of the polymer composition; and

an Mw of 100.000 or less.

22. The adhesive of claim 1, wherein the olefin polymer composition comprises propylene and hexene.

23. The adhesive of claim 1, wherein olefin polymer composition is functionalized, with functional groups of maleic acid or maleic anhydride.

24. The adhesive of claim 1, wherein the polymer composition is functionalized, with functional groups of maleic acid or maleic anhydride.