Claims
- 1. A sulfur free crosslinking, scorch retarding mixture for crosslinking polymers capable of being crosslinked by free radical initiators and providing reduced scorch during compounding consisting essentially of:a). at least one free radical initiator suitable for crosslinking polymers selected from the group consisting of organic peroxides and azo initiators; b). at least one hydroquinone mono alkyl or mono aryl ether; and c). at least one crosslinkage promoter.
- 2. A crosslinking, scorch retarding mixture as defined in claim 1 wherein the hydroquinone mono alkyl ether is hydroquinone monomethyl ether.
- 3. A crosslinking, scorch retarding mixture as defined in claim 1 consisting essentially ofa). 2,5-dimethyl-2,5-di(t-butylperoxy) hexane; b). di(t-butyl peroxy) diisopropyl benzene; c). triallyl isocyanurate; d). hydroquinone monomethyl ether; and e). mono-t-butyl hydroquinone.
- 4. A crosslinking, scorch retarding mixture as defined in claim 1 consisting essentially ofa). di(t-butyl peroxy) diisopropyl benzene; b). triallyl isocyanurate; and c). hydroquinone monomethyl ether.
- 5. A crosslinking, scorch retarding mixture as defined in claim 1 wherein the organic peroxides are selected from the group consisting ofa). dicumyl peroxide; b). dicumyl peroxide and isopropylcumyl cumyl peroxide; and c). t-butyl cumyl peroxide.
Parent Case Info
This application claims priority from provisional application No. 60/277,728 filed Mar. 22, 2001.
US Referenced Citations (8)
Number |
Name |
Date |
Kind |
5245084 |
Groepper et al. |
Sep 1993 |
A |
5272213 |
Knowles et al. |
Dec 1993 |
A |
5849214 |
Novits et al. |
Dec 1998 |
A |
5876624 |
Novits et al. |
Mar 1999 |
A |
5994473 |
Sempio et al. |
Nov 1999 |
A |
6069208 |
Novits et al. |
May 2000 |
A |
6180706 |
Keogh |
Jan 2001 |
B1 |
6197213 |
Novits et al. |
Mar 2001 |
B1 |
Foreign Referenced Citations (2)
Number |
Date |
Country |
812878 |
Dec 1997 |
EP |
1041581 |
Oct 2000 |
EP |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/277728 |
Mar 2001 |
US |