Claims
- 1. A copolymer of vinyl pyrrolidone and an olefinic fraction containing predominately a C.sub.30 alpha-olefin in flake or powder form having a melting point of at least about 50.degree. C.
- 2. A copolymer according to claim 1 which comprises about 20% by weigh of vinyl pyrrolidone and about 80% by weight of said C.sub.30 alpha-olefin.
- 3. A copolymer according to claim 1 wherein the melting point is at least 60.degree. C.
- 4. A copolymer according to claim 1 wherein residual C.sub.30 alpha-olefin is substantially absent.
Parent Case Info
This is a division of application Ser. No. 749,755, filed Aug. 26, 1991, now pending.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
2982742 |
Smith et al. |
May 1961 |
|
3423381 |
Merijan et al. |
Jan 1969 |
|
Non-Patent Literature Citations (2)
Entry |
Riegel, E. R., Industrial Chemistry, 4th Ed., Reinhold Publishing Corporation (1942), pp. 720-722. |
Schildknecht, C. E. Polymer Processes vol. 10, Interscience Publishers, Inc. p. 703. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
749755 |
Aug 1991 |
|