Cycloolefin blends and method for solvent bonding polyolefins

• US 6,255,396 B1
• Filed: 09/09/1999
• Issued: 07/03/2001
• Est. Priority Date: 09/09/1999
• Status: Expired due to Fees

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Yang, Tahua, Qin, Chuan, Shang, Sherwin, Ling, Michael T. K., Woo, Lecon, Ding, Yuan-pang Samuel
• Primary Examiner(s): Nutter, Nathan M.
• Application Number:
  US09/392,912
• Time in Patent Office: 663 Days
• Field of Search: 525/191, 525/210, 525/211, 525/240
• US Class Current: 525/191
• CPC Class Codes: C08L 23/04 Homopolymers or copolymers of ethene
• CPC Class Codes: C08L 23/08 Copolymers of ethene C08L23/16 takes precedence
• CPC Class Codes: C08L 23/0815 Copolymers of ethene with aliphatic 1-olefins
• CPC Class Codes: C08L 23/10 Homopolymers or copolymers of propene
• CPC Class Codes: C08L 23/16 Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
• CPC Class Codes: C08L 23/20 having four to nine carbon atoms
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 45/00 Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers of cyclic anhydrides or imides C08L35/00; of cyclic esters of polyfunctional acids C08L31/00
• CPC Class Codes: C08L 9/00 Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The present invention provides a polymer composition having a first component obtained by copolymerizing a norbornene monomer and an ethylene monomer, the first component being in an amount from about 1-99% by weight of the composition; and a second component of an ethylene and α-olefin copolymer, the α-olefin having 6 carbons, the second component being in an amount from about 99% to about 1% by weight of the composition.

Claims

1. A polymer composition comprising:

a first component obtained by copolymerizing a norbomene monomer and an ethylene monomer, the first component being in an amount from about 1-99% by weight of the composition; and

a second component of an ethylene and α

-olefin copolymer, the α

-olefin having 6 carbons, the second component being in an amount from about 99% to about 1% by weight of the composition.

2. The composition of claim 1 wherein the first component has from about 20 to about 75 mole percent of the norbornene monomer.

3. The composition of claim 1 wherein the first component has from about 30 to about 60 mole percent norbornene monomer.

4. The polymer composition of claim 3 wherein the glass transition temperature of the first component is from about 70°

C. to about 130°

C.

5. The composition of claim 4 wherein the first component is present at least in an amount of about 30% by weight of the composition.

6. The polymer composition of claim 1 wherein the second component is obtained using a metallocene catalyst.

7. The polymer composition of claim 6 wherein the second component has a density from about 0.870 g/cc to about 0.960 g/cc.

8. The composition of claim 1 further comprising a third component of a homopolymer or copolymer obtained using a monomer selected from the group of a cyclic olefin or a bridged polycyclic hydrocarbon.

9. The composition of claim 5 wherein the third component is a second norbomene and ethylene copolymer different from the first component.

10. The composition of claim 9 wherein the third component has a glass transition temperature higher than about 120°

C. and the first component has a glass transition temperature lower than about 120°

C.

11. The composition of claim 9 wherein the third component is present in an amount from 10% to about 90% by weight of the composition.

12. The composition of claim 11 wherein the first component and second component are present in a ratio of from about 2:

1 to about 1;

2 by weight.

13. A polymer composition comprising:

a first component obtained by copolymerizing a norbornene monomer and an ethylene monomer, the norbornene monomer being present in an amount of at least about 20 mole percent of the copolymer, the first component being present in an amount from about 30% to about 99% by weight of the composition; and

a second component of an ethylene and α

-olefin copolymer, the α

-olefin having 6 carbons, the second component being in an amount from about 70% to about 1% by weight of the composition.

14. The polymer composition of claim 13 wherein the second component is obtained using a metallocene catalyst.

15. The polymer composition of claim 14 wherein the second component has a density from about 0.870 g/cc to about 0.960 g/cc.

16. The composition of claim 15 further comprising a third component of a homopolymer or copolymer obtaining using a monomer selected from the group of cyclic olefin or a bridged polycyclic hydrocarbon.

17. The composition of claim 16 wherein the third component is a second norbornene and ethylene copolymer different from the first component.

18. The composition of claim 17 wherein the third component has a glass transition temperature higher than about 120°

C. and the first component has a glass transition temperature of lower than about 120°

C.

19. The composition of claim 18 wherein the third component is present in an amount from 10% to about 90% by weight of the composition.

20. The composition of claim 19 wherein the first component and second component are present in a ratio of from about 2:

1 to about 1;

2 by weight.

21. The composition of claim 13 wherein the glass transition temperature of the first component is from about 70°

C. to about 130°

C.