公开(公告)号：US06191222B1

公开(公告)日：2001-02-20

申请号：US09130470

申请日：1998-08-07

Applicant: Bruno Keller ,  Stephanie Schauhoff ,  Klaus Dorn ,  Hartmut Alt ,  Dietrich Michelchen

Inventor： Bruno Keller ,  Stephanie Schauhoff ,  Klaus Dorn ,  Hartmut Alt ,  Dietrich Michelchen

IPC: C08L5900

CPC classification number: C08L59/00 ,  C08L2666/04

Abstract: Polyoxymethylene moulding compositions of the invention comprise (i) at least one polyoxymethylene homo- and/or copolymer, (ii) at least one conventional additive and (iii) at least one polymeric plastics material as an additive for improving the heat stability, and are distinguished in that (iii) is a copolymer which is obtainable by polymerization in bulk of a mixture of A) 60-90 parts of one or more (meth)acrylates, B) 10-40 parts of one or more (meth)acrylamides, C) per 100 parts of A)+B), >0.2 to 5 parts of molecular weight regulator and D) per 100 parts of A)+B), up to 2 parts of lipophilic free radical polymerization initiators, and in that the moulding composition comprises (iii) in an amount of 0.01 to 2 parts, based on the sum of (i)+(ii) where all the amounts relate to parts by weight (wt/wt) and A) and B) together must give 100 parts. By the use of relatively highly regulated bulk co- or terpolymerization for stabilizing POM moulding compositions, advantages over the use of emulsion or suspension bead polymerization result in the heat stability, in the stability against discoloration and/or in the residual monomer contents of POM moulding compositions and shaped articles and shaped films produced therefrom.

Abstract translation: 本发明的聚氧亚甲基成型组合物包含（i）至少一种聚甲醛均聚物和/或共聚物，（ii）至少一种常规添加剂和（iii）至少一种聚合塑料材料，作为改善热稳定性的添加剂，并且 不同之处在于（iii）是通过本体混合的A）60-90份一种或多种（甲基）丙烯酸酯，B）10-40份一种或多种（甲基）丙烯酰胺，C ）每100份A）+ B），> 0.2至5份分子量调节剂和D）/ 100份A）+ B），至多2份亲脂性自由基聚合引发剂，并且模塑组合物包含（ iii）按照所有量与重量份（wt / wt）相关的（i）+（ii）和A）和B）之和的总和为0.01至2份，B）一起必须给出100份。 使用相对高度调节的体积共聚或三元共聚来稳定POM模塑组合物，优于使用乳液或 悬浮珠聚合导致热稳定性，POM成型组合物和成形制品的残留单体含量的稳定性和/或由其制备的成型制品的稳定性。

公开(公告)号：US20110082252A1

公开(公告)日：2011-04-07

申请号：US12992184

申请日：2009-06-22

Applicant: Rene Koschabek ,  Gabriele Brenner ,  Cornelia Borgmann ,  Hartmut Alt ,  Sven Balk

Inventor： Rene Koschabek ,  Gabriele Brenner ,  Cornelia Borgmann ,  Hartmut Alt ,  Sven Balk

IPC: C08G81/02 ,  C09D133/14

CPC classification number: C08G81/024 ,  C08F8/00 ,  C08F265/02 ,  C08F265/04 ,  C09D151/003 ,  C09J153/00 ,  C08F220/14

Abstract: The present invention relates to polyester acrylate graft copolymers comprising poly(meth)acrylates as graft substrate, the graft substrate having internal and/or terminal functional groups and polyester side chains as graft branches and/or having polyester blocks attached to at least one chain end of the graft substrate. The present invention further relates to processes for preparing the polyester acrylate graft copolymers and also to their use.

Abstract translation: 本发明涉及包含聚（甲基）丙烯酸酯作为接枝基材的聚酯丙烯酸酯接枝共聚物，所述接枝基材具有内部和/或末端官能团和聚酯侧链作为接枝分支和/或具有连接至至少一个链末端的聚酯嵌段 的移植基质。 本发明还涉及制备聚酯丙烯酸酯接枝共聚物的方法以及它们的用途。