Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-10-23
1982-01-05
Hamrock, William F.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525278, 525314, 526180, C08F 446
Patent
active
043095178
ABSTRACT:
Hydrocarbyl esters of N-cyclopropyl-N-hydrocarbylcarbamic acids, such as ethyl N-benzyl-N-cyclopropylcarbamate, are effective coupling agents for conjugated diene polymerization systems employing an alkali metal-based initiator.
REFERENCES:
patent: 3730951 (1973-05-01), Braude
patent: 3773732 (1973-11-01), Dillenschneider
patent: 3968092 (1976-07-01), Gruber
patent: 4160077 (1979-07-01), Brooks et al.
patent: 4174360 (1979-11-01), Moczygemba
Hamrock William F.
Phillips Petroleum Company
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