发明名称 |
Continuous polymerization process and products therefrom |
摘要 |
A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of: (1) forming a reaction mixture, substantially free of carboxylic acid-containing monomers and their salts, containing: (i) 0.5 to 99.95% by weight of the reaction mixture of at least one ethylenically unsaturated monomer; and (ii) 0.05 to 25% by weight, based on the weight of the ethylenically unsaturated monomer, of at least one free-radical initiator; and (2) continuously passing the reaction mixture through a heated zone wherein the reaction mixture is maintained at a temperature of at least 150° C. and a pressure of at least 30 bars for from 0.1 seconds to 4 minutes to form terminally-unsaturated oligomers. In addition, processes for forming oligomers of vinyl acetate and oligomers of vinyl alcohol are disclosed. Mixtures of fully saturated and terminally unsaturated oligomers are also disclosed. |
申请公布号 |
US2002082371(A1) |
申请公布日期 |
2002.06.27 |
申请号 |
US20010025642 |
申请日期 |
2001.12.19 |
申请人 |
GREENBLATT GARY DAVID;LANGE BARRY CLIFFORD;BOWE MICHAEL DAMIAN;MERRITT RICHARD FOSTER;WILCZYNSKI ROBERT;LARSON GARY ROBERT;PETROVICH LORI MARIE;WHITMAN DAVID WILLIAM |
发明人 |
GREENBLATT GARY DAVID;LANGE BARRY CLIFFORD;BOWE MICHAEL DAMIAN;MERRITT RICHARD FOSTER;WILCZYNSKI ROBERT;LARSON GARY ROBERT;PETROVICH LORI MARIE;WHITMAN DAVID WILLIAM |
分类号 |
C07B37/02;C07B35/02;C07C43/196;C07C69/00;C08F2/00;C08F2/02;C08F2/18;C08F4/32;C08F8/04;C08F20/04;C08F220/28;C08F290/04;C08K5/00;C08L21/00;C08L101/00;C11D3/37;(IPC1-7):C08F4/28 |
主分类号 |
C07B37/02 |
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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