发明名称 |
METHOD OF PREPARING ACRYL NITRILE POLYMER OR COPOLYMER |
摘要 |
The present invention relates to a process for the polymerization of acrylonitrile or a monomer mixture containing acrylonitrile as a main component and at least one other ethylenically unsaturated compound, characterized in that the polymerization is conducted at a temperature above 120 DEG C. under a pressure above the vapor pressure generated in the polymerization system under the polymerization conditions in a system in which water is present in a range of 3 to 50 percent by weight based on the total weight of the monomer(s) and water to produce an acrylonitrile polymer in a substantially molten state. The polymers produced according to the above process have the advantage of being able to be directly shaped by extrusion without the need of solvents. |
申请公布号 |
SU580844(A3) |
申请公布日期 |
1977.11.15 |
申请号 |
SU19752163141 |
申请日期 |
1975.08.12 |
申请人 |
DZHAPAN EKSLAN KOMPANI LIMITED (FIRMA) |
发明人 |
MASAKHIKO OZAKI,JA;TOSIYUKI KOBASI,JA;KENITI ONO,JA;NOBORU ABE,JA |
分类号 |
C08F2/00;C08F2/02;C08F20/44;C08F220/44 |
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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