发明名称 |
Promotion of epsilon-caprolactam block copolymerization. |
摘要 |
<p>A process for polymerizing ε-caprolactam to form a nylon-6 block copolymer in which a reactant stream containing. ε-caprolactam, and a lactam polymerization initiator is brought into polymerizing admixture with a reactant stream containing 41-caprolactam and a lactam magnesium halide, wherein sufficient 2-oxo-1-pyrrolidinyl compound is added to the admixture either as 2-pyrrolidinone, 2-oxo-pyrrolidinyl magnesium halide or 2-oxo-1-pyrrolidinyl capped initiator compound to enhance the rate of polymerization of the ε-caprolactam. The lactam polymerization initiator is a telechelic oligomer or polymer containing a backbone which provides elastomeric segments in the nylon-6 block copolymer, and attached to the backbone are activated initiator groups which initiate the polymerization of ε-caprolactam in the presence of the lactam magnesium halide.</p> |
申请公布号 |
EP0186646(A2) |
申请公布日期 |
1986.07.02 |
申请号 |
EP19850870183 |
申请日期 |
1985.12.16 |
申请人 |
DSM RIM NYLON V.O.F |
发明人 |
GABBERT, JAMES DELVIN;HEDRICK, ROSS MELVIN |
分类号 |
C08G69/00;C08G69/16;C08G69/42;C08G69/18;C08G69/20;C08G69/40;C08G69/44;C08G69/48;(IPC1-7):C08G69/16 |
主分类号 |
C08G69/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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