发明名称 |
Production of thermally stabilized polyester with alkylene carbonates and sodium or potassium thiocyanate |
摘要 |
High molecular weight linear condensation polyesters are stabilized against deterioration by heat by reacting the polyester in molten form with alkylene carbonates in the presence of a catalytic amount of a compound selected from the group consisting of sodium thiocyanate and potassium thiocyanate.
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申请公布号 |
US4348314(A) |
申请公布日期 |
1982.09.07 |
申请号 |
US19800155375 |
申请日期 |
1980.06.02 |
申请人 |
ALLIED CORPORATION |
发明人 |
LAZARUS, STANLEY D.;LOFQUIST, ROBERT A. |
分类号 |
C08G63/91;(IPC1-7):C08G63/76 |
主分类号 |
C08G63/91 |
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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