• 专利标题:   Manufacture of polymer composition for forming molded article, involves introducing polymer portions and carbonaceous filler portions into feed section of extruder, and extruding resulting polymer composition.
  • 专利号:   WO2023099408-A1
  • 发明人:   VAN DEN BOGERD J A, BOONMAN R, HERMANS E
  • 专利权人:   SABIC GLOBAL TECHNOLOGIES BV
  • 国际专利分类:   B29C070/00, C08J005/00, C08J005/04
  • 专利详细信息:   WO2023099408-A1 08 Jun 2023 C08J-005/00 202349 Pages: 19 English
  • 申请详细信息:   WO2023099408-A1 WOEP083490 28 Nov 2022
  • 优先权号:   EP212179

▎ 摘  要

NOVELTY - Manufacture of polymer composition involves (s1) introducing a polymer portion (p1) and a carbonaceous filler portion (c1) into a first feed section of an extruder, (s2) introducing a polymer portion (p2) and optionally a carbonaceous filler portion (c2) into a second feed section located downstream of the first feed section of the extruder, and extruding the resulting polymer composition. The composition comprises 0.01-3 wt.% carbonaceous filler relative to the total weight of the polymer composition. USE - Polymer composition used for forming molded article (claimed). Uses include but are not limited to sheets, non-oriented films, oriented films, round bars, extruded products, integrated circuit tray, chassis, components for office automation machines such as computers and peripheral equipment, cowl, fender, door panel, front panel, rear panel, locker panel, rear bumper panel, back door garnish, emblem garnish, etc. ADVANTAGE - The polymer composition has improved surface characteristics in terms of reduced surface defects.