发明名称 |
NONSOLVENT PRECONCENTRATION OF POLYMERIC CYCLOOLEFINS |
摘要 |
<p>Process for preconcentrating polymer cement normally containing about 15% solids comprising mixing therewith an amount of a hydrocarbon nonsolvent liquid sufficient to form a two-phase system but insufficient to precipitate the polymer, and separating the two phases; the polymer cement is a honey-like solution of a polymer prepared by ring opening polymerization of at least one monomer containing the norbornene group in a nonpolar hydrocarbon solvent; the upper phase being a thin hydrocarbon liquid comprising nonsolvent, a substantial portion of the nonpolar solvent in the polymer cement, and impurities, and the lower phase being a preconcentrated polymer cement containing at least 20% solids.</p> |
申请公布号 |
CA1202134(A) |
申请公布日期 |
1986.03.18 |
申请号 |
CA19830418899 |
申请日期 |
1983.01.05 |
申请人 |
B.F. GOODRICH COMPANY (THE) |
发明人 |
WOOTTON, GERALD V.;LANE, PARLEY C., JR.;YI, KONG S. |
分类号 |
C08G61/00;C08F6/06;C08G61/06;C08G61/08;(IPC1-7):C08F6/10;C08F32/00 |
主分类号 |
C08G61/00 |
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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