发明名称 |
Continuous free radical polymerization in a wiped-surface reactor. |
摘要 |
<p>A bulk polymerization process for free radical polymerization of vinyl monomers in a wiped surface reactor is disclosed. Referring to Figure 1; monomer streams (5) (after purification and silica gel column 2) and (7) are combined with free radical initiator (9) to form a premix (16). Pump (18) transfers the premix stream (22) through static mixer (24) into a wiped surface reactor (27). The reactor can be a counter rotating twin screw extruder which produces polymer stream (36) without the need of solvent and using residence times much shorter than prior art solution or emulsion processes.</p><p>Some unique pressure sensitive adhesive acrylate polymers have been produced. They are believed to have a relatively high degree of branching. The bulk polymerization process permits the manufacture of pressure sensitive adhesive articles by extruding directly from the twin screw extruder onto a substrate.</p> |
申请公布号 |
EP0160394(A2) |
申请公布日期 |
1985.11.06 |
申请号 |
EP19850302147 |
申请日期 |
1985.03.27 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
KOTNOUR, THOMAS A C/O MINNESOTA MINING AND;BARBER, RONALD L. C/O MINNESOTA MINING AND;KRUEGER, WALTER L. C/O MINNESOTA MINING AND |
分类号 |
C08F2/00;C08F2/02;C08F20/00;C08F20/10;C08F220/12;C09J7/02;C09J133/04;C09J133/08;(IPC1-7):C08F2/02;C09J3/14 |
主分类号 |
C08F2/00 |
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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