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    • 2. 发明授权
    • Process for the synthesis of polyamides
    • 聚酰胺合成方法
    • US5416189A
    • 1995-05-16
    • US145208
    • 1993-11-03
    • Eric VandevijverFernand GauthyArdechir Momtaz
    • Eric VandevijverFernand GauthyArdechir Momtaz
    • C08G69/26C08G69/28
    • C08G69/265C08G69/28
    • Process for the synthesis of polyamides by polycondensation in a closed reactor of one or a number of dicarboxylic acids with a diamine compound containing not less than 60 mol % of-m-xylyenediamine, in which all the amount of diamine compound stoichiometrically necessary for the polycondensation reaction is quickly brought into contact with the molten acid, the temperature of the reaction mixture is raised to a value greater than the melting point of the polyamide produced, the pressure is only allowed to rise to a value sufficient to prevent solidification of the reaction mixture and a substantial loss of diamine compound and, at the end of the reaction, the pressure of the reaction mixture is reduced and the polyamide formed is recovered.
    • 在一种或多种二羧酸与含有不低于60mol%的间二甲苯二胺的二胺化合物的闭合反应器中缩聚合成聚酰胺的方法,其中所有量的缩聚所需的化学计量的二胺化合物 反应快速与熔融酸接触,反应混合物的温度升高到大于所生产聚酰胺的熔点的值,压力仅允许上升至足以防止反应混合物固化的值 和二胺化合物的显着损失,并且在反应结束时,反应混合物的压力降低,并且回收形成的聚酰胺。
    • 9. 发明授权
    • Polyolefins and method for the production thereof
    • 聚烯烃及其制备方法
    • US06586532B1
    • 2003-07-01
    • US09926416
    • 2002-02-20
    • Fernand Gauthy
    • Fernand Gauthy
    • C08F25502
    • C08F255/02C08F220/00
    • Process for producing polyolefins, comprising the following steps: a) grafting of acid groups onto polyolefins by means of a graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride, optionally in the presence of another graftable monomer bearing a vinyl unsaturated group and, optionally, one or more aromatic rings; b) purification, consisting in removing at least some of the graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride that has not reacted with the polyolefins; c) neutralization of the acid groups by at least one neutralizing agent. Polyolefin obtained.
    • 制备聚烯烃的方法,包括以下步骤:a)通过具有至少一个选自羰基和酸酐的官能团的可接枝单体将酸基接枝到聚烯烃上,任选地在另一种带有乙烯基的可接枝单体的存在下 不饱和基团和任选的一个或多个芳族环; b)纯化,其包括除去至少一些具有至少一个选自与聚烯烃不反应的羰基和酸酐的官能团的可接枝单体; c) 通过至少一种中和剂中和酸基团。得到聚烯烃。