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    • 6. 发明授权
    • Thermally stabilized carboxyl-containing ethylene copolymers and
preparation thereof
    • 热稳定的含羧基的乙烯共聚物及其制备
    • US4594382A
    • 1986-06-10
    • US672004
    • 1984-11-16
    • Stephen M. HoenigDavid P. FloresGregory S. O'Connell
    • Stephen M. HoenigDavid P. FloresGregory S. O'Connell
    • C08K5/098C08K5/09
    • C08K5/098
    • A carboxyl-containing ethylene copolymer composition exhibiting thermal stability and method for preparing the same. The composition comprises (a) an ethylene copolymer containing a carboxyl-functional comonomer in an amount ranging from about 0.01 to about 50 weight percent of the copolymer, and (b) a hydrated compound in intimate admixture therewith. The hydrate dehydrates at a temperature between about 100.degree. C. and about 300.degree. C. and is selected from hydrated metallic salts of organic acids, inorganic hydrates, bimetallic hydrates and combinations thereof. The hydrate is present in the composition in at least an amount effective to impart thermal stability thereto up to about 5 weight percent of the composition, preferably 0.01-0.45 weight percent. The composition is prepared by adding the hydrate to the copolymer and intimately mixing the hydrate and the copolymer. The addition and mixing steps are performed either during or subsequent to the manufacture of the copolymer.
    • 表现出热稳定性的含羧基乙烯共聚物组合物及其制备方法。 所述组合物包含(a)含有所述共聚物约0.01至约50重量%的量的羧基官能共聚单体的乙烯共聚物,和(b)与其紧密混合的水合化合物。 水合物在约100℃至约300℃的温度下脱水,并且选自有机酸,无机水合物,双金属水合物及其组合的水合金属盐。 水合物以至少有效量赋予组合物至多约5重量%组合物,优选0.01-0.45重量%的热稳定性的量存在于组合物中。 通过将水合物加入到共聚物中并使水合物和共聚物充分混合来制备组合物。 加入和混合步骤在制备共聚物期间或之后进行。