摘要:
The present invention relates to a polymer pipe having a relative eccentricity of at least 0.03, whereby the relative eccentricity (e r ) is defined as follows e r = S max - S min S max + S min wherein S max is the maximum wall thickness of the pipe; and S min is the minimum wall thickness of the pipe,
to a process for the preparation of such a pipe and the use of such a pipe for the transport of pressurized fluids.
摘要翻译:本发明涉及一种相对偏心率至少为0.03的聚合物管,其中相对偏心率(呃)定义如下:er = S max -Smin S max + S min其中S max是最大壁厚 管; S min是管道的最小壁厚,制造这种管道的方法以及使用这种用于输送加压流体的管道。
摘要:
A masterbatch (MB) comprising, preferably consisting of, (I) 20-50 wt% pigment based on the total amount of the masterbatch (100 wt%); (II) at least 40 wt% of at least one carrier polymer which is a multimodal high density polyethylene (HDPE) polymer having an MFR 2 of 1 to 20 g/10 min, a density of 940 to 965 kg/m 3 (pref 950 to 960) and a Mw/Mn of 5.5 to 20; and (IV) optionally further additives.