公开(公告)号：US20240092000A1

公开(公告)日：2024-03-21

申请号：US17768500

申请日：2020-10-13

Applicant: BASF SE

Inventor： Reinhard JAKOBI ,  Angelika HOMES ,  Susanne ZEIHER ,  Daniel LEUTZ ,  Natascha Manuela MEIERHOEFER ,  Rafael GIMENEZ CASAT ,  Marcus IMO ,  Sascha Tim SCHWENDY ,  Leonhard ULLRICH

IPC: B29C45/16 ,  B29C45/20 ,  B29C45/50 ,  B33Y80/00

CPC classification number: B29C45/1634 ,  B29C45/20 ,  B29C45/50 ,  B33Y80/00 ,  B29K2995/0021 ,  B29L2031/7132

Abstract: Disclosed herein is a process for producing marbled moldings, where a first molding compound and at least one further molding compound are injected from an injection unit of a screw injection molding machine into an injection mold,



where the injection unit includes a barrel, a screw having a screw tip and a nozzle where the screw is rotatable and is disposed in the barrel so as to be movable between a forward position and a backward position, with a smaller distance between the screw tip and the nozzle in the forward position than in the backward position,
and where the first molding compound includes a first polymer compound and a first colorant, and the at least one further molding compound includes a further polymer compound and optionally at least one further colorant.




Further disclosed herein is an apparatus for production of marbled moldings, and a process for producing the apparatus.

公开(公告)号：US20240294753A1

公开(公告)日：2024-09-05

申请号：US17754770

申请日：2020-10-14

Applicant: BASF SE

Inventor： Stefan SCHWIEGK ,  Gerhard LEITER ,  Susanne ZEIHER ,  Simone SCHILLO ,  Andre SCHAEFER ,  Thomas FUCHS ,  Nicolas TISSIER ,  Johann Martin SZEIFERT ,  Sabine FRIETSCH ,  Abdullah SHAIKH

IPC: C08L77/06 ,  C08K7/14

CPC classification number: C08L77/06 ,  C08K7/14 ,  C08L2205/025

Abstract: Disclosed herein is a mixture of at least one semi-aromatic polyamide A) and at least one semi-aromatic polyamide B), both containing repeat units derived from terephthalic acid. Further disclosed herein are a polyamide molding composition including said mixture of polyamides, a molded article produced from said polyamide molding composition and a method of using the mixture of semi-aromatic polyamides for the production of a molded article with improved mechanical properties, in particular with improved weld line strength.