| 发明名称 |
Solid state polymerization of polyester prepolymer |
| 摘要 |
The invention relates to an improvement in the solid state polymerization of polyester prepolymer comprising the use of low molecular weight prepolymer having an intrinsic viscosity ranging from about 0.1 to about 0.35 and essentially in the form of discrete spherical beads.
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| 申请公布号 |
US4165420(A) |
申请公布日期 |
1979.08.21 |
| 申请号 |
US19780945161 |
申请日期 |
1978.09.25 |
| 申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
RINEHART, VERNE R. |
| 分类号 |
C08G63/80;C08J3/12;(IPC1-7):C08G63/26 |
主分类号 |
C08G63/80 |
| 代理机构 |
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