P
USRE39559EExpiredUtilityPatentIndex 45

Butadiene polymers having terminal functional groups

Assignee: KRATON POLYMER US L L CPriority: Aug 31, 1992Filed: Sep 5, 2003Granted: Apr 10, 2007
Est. expiryAug 31, 2012(expired)· nominal 20-yr term from priority
Inventors:HANDLIN JR DALE LGOODWIN DANIEL EWILLIS CARL LST CLAIR DAVID JWILKEY JOHN DMODIC MICHAEL JSTEVENS CRAIG A
C08L 19/006C08C 19/44C08F 136/06C08G 18/0823C08G 18/6208C08G 18/8175C08G 63/00C08G 64/18C08G 69/00C08G 81/024C08L 15/00
45
PatentIndex Score
0
Cited by
28
References
27
Claims

Abstract

Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70%. Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.

Claims

exact text as granted — not AI-modified
1. A polymer, consisting essentially of:
 polymerized 1,3-butadiene having a peak molecular weight between 500 and 20,000, 1,2-addition between 30% and 70%, and hydrogenation of at least 90% of the unsaturation;  
 the polymer has a ratio of viscosity ( poise at room temperature )  to peak molecular weight raised to the  3 . 4  power of at most  2 . 0 .times. 10     −9 ; and  
 onethe polymer has about two or more terminal functional groups per molecule.  
 
     
     
       2. The polymer of claim  1    6 , wherein the terminal functional groups are selected from a group consisting of hydroxyl, carboxyl, phenol, epoxy, and amine groups. 
     
     
       3. The polymer of  claim 2 , wherein the polymer has a ratio of viscosity (poise at room temperature) to peak molecular weight raised to the 3.4 power of at most 2.0×10 −9 . 
     
     
       4. The polymer of claim  3    1 , wherein the polymerized butadiene has a peak molecular weight between 1,000 and 10,000. 
     
     
       5. The polymer of  claim 4 , wherein the polymerized butadiene is at least 95% hydrogenated. 
     
     
       6. The polymer of claim  5    1 , wherein the ratio of viscosity to peak molecular weight raised to the 3.4 power is less than  1.0× .times. 10 −9 . 
     
     
       7. The polymer of  claim 6 , wherein the terminal functional groups consist of about two hydroxyl groups per molecule. 
     
     
       8. The polymer of claim  1    6 , wherein the peak molecular weight is between 1000 and 10000. 
     
     
       9. The polymer of  claim 8 , wherein the 1,2-addition of the polymerized butadiene is between 40% and 60%. 
     
     
       10. A polymer, comprising:
 polymerized 1,3-butadiene having a peak molecular weight between 500 and 20000, hydrogenation of at least 90% of the unsaturation, and 1,2-addition between 30% and 70%;  
 the polymer has a ratio of viscosity ( poise at room temperature )  to peak molecular weight raised to the  3 . 4  power of at most  2 . 0 .times. 10     −9 ; and  
 the polymer has about two terminal functional groups per molecule.  
 
     
     
       11. The polymer of claim  10    17 , wherein the terminal functional groups are selected from a group consisting of hydroxyl, carboxyl, phenol, epoxy, and amine groups. 
     
     
       12. The polymer of  claim 11 , wherein the polymerized butadiene is at least 95% hydrogenated. 
     
     
       13. The polymer of  claim 12 , wherein the ratio of viscosity (poise at room temperature) to peak molecular weight raised to the 3.4 power is at most 2.0×10 −9 . 
     
     
       14. The polymer of claim  13    12 , wherein the terminal functional groups are hydroxyl groups. 
     
     
       15. The polymer of  claim 14 , wherein the peak molecular weight is between 1000 and 10000. 
     
     
       16. The polymer of  claim 15 , wherein the 1,2-addition of the polymerized butadiene is between 40% and 60%. 
     
     
       17. The polymer of  claim 10 , wherein the ratio of viscosity to peak molecular weight raised to the  3 . 4  power is less than  1 . 0 .times. 10   −9 . 
     
     
       18. The polymer of  claim 4  wherein the wherein the polymerized butadiene has a peak molecular weight of about  10 , 000 . 
     
     
       19. The polymer of  claim 4  wherein the wherein the polymerized butadiene has a peak molecular weight of about  5 , 000 . 
     
     
       20. The polymer of  claim 4  wherein the wherein the polymerized butadiene has a peak molecular weight of about  3 , 000 . 
     
     
       21. The polymer of  claim 4  wherein the wherein the polymerized butadiene has a peak molecular weight of about  2 , 000 . 
     
     
       22. The polymer of  claim 15  wherein the wherein the polymerized butadiene has a peak molecular weight of about  10 , 000 . 
     
     
       23. The polymer of  claim 15  wherein the wherein the polymerized butadiene has a peak molecular weight of about  5 , 000 . 
     
     
       24. The polymer of  claim 15  wherein the wherein the polymerized butadiene has a peak molecular weight of about  3 , 000 . 
     
     
       25. The polymer of  claim 15  wherein the wherein the polymerized butadiene has a peak molecular weight of about  2 , 000 . 
     
     
       26. The polymer of  claim 10  wherein the polymer has  1 . 7  terminal functional groups per molecule. 
     
     
       27. The polymer of  claim 10  wherein the polymer has  1 . 9  terminal functional groups per molecule.

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