Claims
- 1. A hydrocarbon tackifier resin which is the polymerization reaction product of at least one alpha-olefin, at least one cyclic olefin, and at least one aromatic-group-containing monomer, wherein said aromatic-group-containing monomer comprises at least one polymerizable double bond and, wherein the cyclic structures of the cyclic olefin monomers remain substantially intact and the total aromatic-group-containing monomer content is at least 0.5 mole percent of the resin, and wherein the tackifier resin has a M.sub.w /M.sub.n of about 3 or less.
- 2. The resin of claim 1 wherein the total aromatic-group-containing monomer content is less than about 90 mole percent of the resin.
- 3. The resin of claim 1 having an M.sub.n of 2000 or less.
- 4. The resin of claim 1 having a T.sub.g of about 0.degree. C. or more.
- 5. The resin of claim 1 wherein the tackifier produced has a T.sub.g of 100.degree. C. or less.
- 6. The resin of claim 1 wherein the tackifier produced has an M.sub.n in the range of from about 200 to about 1000.
- 7. The resin of claim 1 having a cyclic olefin content in the range of from about 5 to about 90 mole percent.
- 8. The resin of claim 1 wherein the alpha-olefin is a linear or branched mono-olefin containing from 3 to 8 carbon atoms, the cyclic olefin is a non-conjugated diene containing up to 30 carbon atoms, and the aromatic-group-containing monomer contains one aromatic group and up to 30 carbon atoms.
- 9. The resin of claim 1, said tackifier resin having been hydrogenated.
- 10. The resin of claim 1 having a Saybolt color of 15 or more.
- 11. A process for producing a hydrocarbon tackifier resin, said process comprising polymerizing a monomer feed of at least one alpha-olefin, at least one cyclic olefin, and at least one aromatic-group-containing monomer, said aromatic-group-containing monomer comprising at least one polymerizable double bond, in the presence of a metallocene catalyst system, wherein said monomer feed contains from 0.1 to 10 moles of alpha-olefin and from 0.1 to 10 moles of aromatic-group-containing monomers to every mole of cyclic olefin.
- 12. The process of claim 11 wherein the monomer feed is polymerized at a temperature of 60.degree. C. or greater.
- 13. The process of claim 11 wherein the metallocene catalyst system comprises a cyclopentadienyl transition metal compound wherein the cyclopentadienyl ligands are selected from the group consisting of: unbridged bis-cyclopentadienyl; silicon bridged bis-indenyl; silicon bridged cyclopentadienyl amide; carbon bridged cyclopentadienyl fluorenyl; carbon bridged bis-cyclopentadienyl; and carbon bridged cyclopentadienyl indenyl.
- 14. The process of claim 11 wherein the metallocene catalyst system comprises an activator comprising an alumoxane or a non-coordinating anion.
- 15. The process of claim 11 wherein the alpha-olefin is a linear or branched mono-olefin containing from 3 to 8 carbon atoms, the cyclic olefin is a non-conjugated diene containing up to 30 carbon atoms, and the aromatic-group-containing monomer contains one aromatic group and up to 30 carbon atoms.
- 16. The process of claim 11 further comprising hydrogenating the resin.
- 17. An adhesive comprising the resin of claim 1.
- 18. The adhesive of claim 17 further comprising a base polymer which is a random copolymer, a block copolymer, or a homopolymer.
- 19. An article of manufacture comprising the adhesive of claim 17.
Parent Case Info
This is a continuation of application Ser. No. 08/568,910, filed Dec. 7, 1995, now abandoned.
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Continuations (1)
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Number |
Date |
Country |
Parent |
568910 |
Dec 1995 |
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