Compatibilizing agent based on polyolefin with polyamide grafts and mixtures comprising same
    1.
    发明授权
    Compatibilizing agent based on polyolefin with polyamide grafts and mixtures comprising same 失效
    基于聚烯烃与聚酰胺接枝物及其混合物的相容剂

    公开(公告)号:US07071262B2

    公开(公告)日:2006-07-04

    申请号:US10343238

    申请日:2001-07-27

    IPC分类号: C08L77/00

    摘要: According to a first form, the present invention relates to a compatibilizer composed of a polyolefin backbone and of polyamide grafts in which: the grafts are attached to the backbone via the residues of an unsaturated monomer (A) having a functional group which acts as activator in the polymerization of lactains and which is not an isocyanate functional group, the residues of the unsaturated monomer (A) are fixed to the backbone by grafting from its double bond. The invention also relates to a process for the preparation of these compatibilizers in which, after the preparation of the backbone comprising the monomer having an activating functional group, the precursor lactam of the grafts and a catalyst are added and heating is carried out in order to obtain anionic polymerization of the lactam which spreads starting from the activating functional group. Subsequently, the compatibilizer and the polyamide which has formed apart from the grafts are optionally separated.

    摘要翻译: 根据第一种形式,本发明涉及由聚烯烃骨架和聚酰胺接枝物组成的增容剂,其中:通过具有作为活化剂的官能团的不饱和单体(A)的残基将接枝物连接到主链上 在乳液的聚合中,不是异氰酸酯官能团,不饱和单体(A)的残基通过从双键接枝而固定在骨架上。 本发明还涉及一种制备这些增容剂的方法,其中在制备包含具有活化官能团的单体的主链之后,加入接枝物的前体内酰胺和催化剂,并进行加热以便 获得从活化官能团开始扩散的内酰胺的阴离子聚合。 随后,相容剂和与移植物分开形成的聚酰胺任选分离。

    Process for the anionic polymerization of lactams

    公开(公告)号:US06579965B2

    公开(公告)日:2003-06-17

    申请号:US09960730

    申请日:2001-09-24

    IPC分类号: C08G6908

    CPC分类号: C08G69/20 C08G69/18

    摘要: For the anionic polymerization of lactams: (a) (i) a catalyst capable of creating a lactamate and (ii) a regulator chosen from amides of formula R1-NH—CO-R2, in which R1 can be substituted by an R3-CO—NH— or R3-0— radical and in which R1, R2 and R3 denote an aryl, alkyl or cycloalkyl radical, are dissolved in the molten lactam, (a1) the solution from stage (a) is cooled, optionally to the solid state in a form which can be divided, (a2) the product from stage (a1) is optionally reheated to a temperature below the polymerization temperature of the lactam, (a3) optionally, the product from stage (a1) is reheated and is maintained at a temperature between the melting temperature of the lactam and 15° C. above, and (b) the produce from any one of stages (a1), (a2) or (a3) is introduced into a mixing device or mold and is then heated to a temperature sufficient to obtain the bulk polymerization of the lactam.