Claims
- 1. A polypropylene containing composition comprising a polypropylene resin which has been molecular weight modified by a process comprising treating the resin with a molecular weight modifying-amount of 4-(t-amylperoxy)-4-methyl-2-pentanol for a time and at a temperature sufficient to induce decomposition of the 4-(t-amylperoxy)-4-methyl-2-pentanol and thereby modify the molecular weight of the resin, whereby the resin contains less than 100 parts per million by weight of t-butanol.
Parent Case Info
This application is a division of application Ser. No. 10/013,269, filed Dec. 12, 2001, now U.S. Pat. No. 6,503,990 which claims priority from provisional application 60/261,110 filed Jan. 12, 2001.
US Referenced Citations (7)
Number |
Name |
Date |
Kind |
3144436 |
Greene et al |
Aug 1964 |
A |
3236872 |
Manly et al |
Feb 1966 |
A |
4707524 |
Ehrig et al. |
Nov 1987 |
A |
5475072 |
Sanchez et al. |
Dec 1995 |
A |
5489699 |
Sanchez et al. |
Feb 1996 |
A |
5494988 |
Sanchez et al. |
Feb 1996 |
A |
5932660 |
Meijer et al. |
Aug 1999 |
A |
Foreign Referenced Citations (3)
Number |
Date |
Country |
0423639 |
Apr 1991 |
EP |
853090 |
Jul 1998 |
EP |
WO9936466 |
Jul 1999 |
WO |
Non-Patent Literature Citations (2)
Entry |
Lagardere et al, ANTEC, pp 2243-2247, 1998. |
Callais, Proc. Water-Borne Higher Solids Coat. Symp., 1990, Abstract only. |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/261110 |
Jan 2001 |
US |