Claims
- 1. An article comprising at least one block copolymer and, optionally, at least one other component selected from the group consisting of olefin polymers, styrene polymers, tackifying resins, polymer extending oils, and engineering thermoplastic resins, wherein said block copolymer has at least one block A and at least one block B and wherein:
a. each A block is a mono alkenyl arene homopolymer block and each B block is a controlled distribution copolymer block of at least one conjugated diene and at least one mono alkenyl arene; b. each A block having an average molecular weight between about 3,000 and about 60,000 and each B block having an average molecular weight between about 30,000 and about 300,000; c. each B block comprises terminal regions adjacent to the A blocks that are rich in conjugated diene units and one or more regions not adjacent to the A blocks that are rich in mono alkenyl arene units; d. the total amount of mono alkenyl arene in the block copolymer is about 20 percent weight to about 80 percent weight; and e. the weight percent of mono alkenyl arene in each B block is between about 10 percent and about 75 percent.
- 2. The article according to claim 1 wherein said mono alkenyl arene is styrene and said conjugated diene is selected from the group consisting of isoprene and butadiene.
- 3. The article according to claim 2 wherein said conjugated diene is butadiene, and wherein about 20 to about 80 mol percent of the condensed butadiene units in block B have 1,2-configuration.
- 4. The article according to claim 3 wherein the styrene blockiness index of the block B is less than about 40 percent.
- 5. The article according to claim 4 wherein the polymer is an ABA polymer and each block B has a center region with a minimum ratio of butadiene units to styrene units.
- 6. The article according to claim 2 wherein the styrene blockiness index of the block B is less than about 10 percent, said styrene blockiness index being defined to be the proportion of styrene units in the block B having two styrene neighbors on the polymer chain.
- 7. The article according to claim 1 wherein said block copolymer has the general configuration ABA, (A-B)n, (A-B)nA, (A-B)nX or mixtures thereof where n is an integer from 2 to about 30, X is the coupling agent residue, each A block has an average molecular weight of about 10,000 to about 30,000, each B block has an average molecular weight of about 30,000 to about 150,000, and the total mono alkenyl arene amount in the block copolymer is between about 35 weight percent and about 80 weight percent.
- 8. The article according to claim 1 comprising 100 parts by weight of said block copolymer and about 5 to about 100 parts by weight of a polymer extending oil.
- 9. The article according to claim 1 comprising 100 parts by weight of said block copolymer and about 5 to about 100 parts by weight of an olefin polymer selected from the group consisting of ethylene homopolymers, ethylene/alpha olefin copolymers, propylene homopolymers, propylene/alpha olefin copolymers, high impact polypropylene, and ethylene/vinyl acetate copolymers.
- 10. The article according to claim 9 also comprising about 5 to about 50 parts by weight of a tackifying resin.
- 11. The article according to claim 1 comprising 100 parts by weight of said block copolymer and about 5 to about 200 parts by weight of a styrene polymer selected from the group consisting of crystal polystyrene, high impact polystyrene, syndiotactic polystyrene, styrene/methyl-methacrylate copolymer and acrylonitrile/butadiene/styrene terpolymer.
- 12. The article according to claim 7 comprising 100 parts by weight of said block copolymer and about 5 to about 200 parts by weight of a styrene polymer selected from the group consisting of crystal polystyrene, high impact polystyrene, syndiotactic polystyrene, styrene/methyl-methacrylate copolymer and acrylonitrile/butadiene/styrene terpolymer.
- 13. The article according to claim 7 comprising 5 to 40 percent weight of said block copolymer and 60 to 95 percent weight of a polystyrene homopolymer or copolymer.
- 14. The article according to claim 13 wherein said styrene polymer is crystal polystyrene or high impact polystyrene.
- 15. The article according to claim 13 wherein said styrene polymer is a styrene/methyl-methacrylate copolymer.
- 16. The article according to claim 13 wherein said styrene polymer is an acrylonitrilelbutadiene/styrene terpolymer.
- 17. The article according to claim 11 also comprising about 5 to about 50 parts by weight of a tackifying resin.
- 18. A formulated composition comprising at least one block copolymer and at least one component selected from the group consisting of fillers, reinforcements, polymer extending oils, tackifying resins, lubricants and polyolefins, wherein said block copolymer has at least one A block and at least one B block and wherein:
a. each A block is a mono alkenyl arene homopolymer block and each B block is a controlled distribution copolymer block of at least one conjugated diene and at least one mono alkenyl arene; b. each A block having an average molecular weight between about 3,000 and about 60,000 and each B block having an average molecular weight between about 30,000 and about 300,000; c. each B block comprises terminal regions adjacent to the A blocks that are rich in conjugated diene units and one or more regions not adjacent to the A blocks that are rich in mono alkenyl arene units; d. the total amount of mono alkenyl arene in the block copolymer is about 20 percent weight to about 80 percent weight; and e. the weight percent of mono alkenyl arene in each B block is between about 15 percent and about 75 percent.
- 19. A cap seal formed from the formulated composition of claim 18.
- 20. A film formed from the formulated composition of claim 18.
- 21. The article according to claim 1 wherein the article is in the form of a film, sheet, coating, band, strip, profile, molding, foam, tape, fabric, thread, filament, ribbon, fiber, plurality of fibers or, fibrous web.
- 22. The article according to claim 1 wherein said article is formed in a process selected from the group consisting of injection molding, over molding, dipping, extrusion, roto molding, slush molding, fiber spinning, film making or foaming.
- 23. The article according to claim 1 comprising about 5 to 20 percent weight of said block copolymer and about 80 to about 95 percent weight of an engineering thermoplastic resin.
- 24. The article according to claim 23 wherein said engineering thermoplastic resin is selected from the group consisting of thermoplastic polyester, thermoplastic polyurethane, poly(arylether), poly(aryl sulfone), polycarbonate, acrylic resins, acetal resin, polyamide, halogenated thermoplastic, cyclic olefin copolymers and nitrile barrier resin.
- 25. The article according to claim 1 comprising about 5 to 95 percent weight of said block copolymer and about 95 to about 5 percent weight of a polystyrene homopolymer or copolymer.
- 26. The article according to claim 13 wherein said styrene polymer is a styrene-grafted polypropylene polymer.
- 27. The article according to claim 1 also comprising an SBS or SIS copolymer.
- 28. The article according to claim 1 wherein the total amount of mono alkenyl arene in the block copolymer is between about 60 weight percent and 80 weight percent.
- 29. The article according to claim 3 wherein said 1,2-configuration of the condensed butadiene units in each B block is between 20 and 40 mol percent.
- 30. The article according to claim 1 in the form of a film
- 31. The article according to claim 1 in the form of a fiber.
- 32. The article according to claim 1 in the form of an elongated tube.
- 33. The article according to claim 1 in the form of a sheet.
- 34. The article according to claim 8 wherein said polymer extending oil has a naphthenic content between 40 weight percent and 55 weight percent and an aromatic content less than 10 weight percent.
- 35. The formulated and moldable composition according to claim 18 comprising:
a. an unsaturated, crosslinkable thermosetting resin; b. an ethylenically unsaturated monomer; c. an additive selected from the group consisting of reinforcing agents, fillers and mixtures thereof; and d. said block copolymer.
- 36. The composition according to claim 35 wherein said thermosetting resin is a polyester resin.
- 37. The composition according to claim 35 wherein said unsaturated monomer is styrene.
- 38. The article according to claim 1 comprising 95 to 60 percent weight of said block copolymer and 40 to 5 percent weight of a styrene polymer.
- 39. The article according to claim 38 wherein said styrene polymer is selected from the group consisting of crystal polystyrene, high impact polystyrene, syndiotactic polystyrene, styrene/methyl-methacrylate copolymer and acrylonitrile/butadiene/styrene terpolymer.
- 40. The article according to claim 39 wherein said styrene polymer is crystal polystyrene or high impact polystryrene.
- 41. The article according to claim 38 also comprising about 5 to about 100 parts by weight of a polymer extending oil for every 100 parts by weight of said block copolymer.
- 42. The article according to claim 41 wherein the amount of polymer extending oil is varied in order to adjust the modulus of the article.
- 43. The article according to claim 42 wherein said polymer extending oil has a naphthenic content between 40 weight percent and 55 weight percent and an aromatic content less than 10 weight percent. molecular weight of about 10,000 to about 30,000, each B block has an average molecular weight of about 30,000 to about 150,000, and the total mono alkenyl arene amount in the block copolymer is between about 35 weight percent and about 80 weight percent.
- 45. The article according to claim 44 in the form of a fiber, film, tape, fabric, plurality of fibers or sheet.
- 46. An elastomeric laminate formed from the film of claim 45.
- 47. The article according to claim 1 comprising 1 to 99 percent weight of said block copolymer and 99 to 1 percent weight of said other component.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority from the following copending, commonly assigned U.S. patent applications Ser. No. 60/355,210, filed Feb. 7, 2002 (TH-1768-prov.): Ser. No. 10/209,285, filed Jul. 31, 2002 (TH-1768A); and Ser. No. ______, filed concurrently (TH-1768 conv.)
Provisional Applications (1)
|
Number |
Date |
Country |
|
60355210 |
Feb 2002 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10209285 |
Jul 2002 |
US |
Child |
10359953 |
Feb 2003 |
US |