• 专利标题:   Antistatic polypropylene composite film useful in packaging materials, comprises at least first film layer formed from a polypropylene composition and second film layer formed from a polypropylene composition.
  • 专利号:   CN115991025-A
  • 发明人:   BAI Y, XU K, CHU L, LV Y, REN Y, GAO D, XU M, QUAN H
  • 专利权人:   BEIJING RES INST CHEM IND CHINA PETRO, CHINA PETROLEUM CHEM CORP
  • 国际专利分类:   B32B027/06, B32B027/20, B32B027/32, B65D065/40, C08J005/18, C08K003/04, C08L023/08, C08L023/12, C08L023/14, C08L023/16, H05K009/00
  • 专利详细信息:   CN115991025-A 21 Apr 2023 B32B-027/32 202345 Chinese
  • 申请详细信息:   CN115991025-A CN11221986 20 Oct 2021
  • 优先权号:   CN11221986

▎ 摘  要

NOVELTY - Antistatic polypropylene composite film, comprises at least one film layer A formed from a polypropylene composition A and at least one film layer B formed from a polypropylene composition B; where, the polypropylene composition A includes homopolypropylene a, propylene impact copolymer b and polyolefin elastomer c, the polypropylene composition B includes a resin component and a conductive filler, and the resin component includes atactic polypropylene x and optionally polyolefin elastomer y. USE - The antistatic polypropylene composite film is useful in packaging materials, preferably battery packaging, electronic product packaging, industrial powder packaging or food packaging (claimed). ADVANTAGE - The antistatic polypropylene composite film has good impact resistance, tensile property and antistating performance, and has good heat sealing strength under the low heat sealing temperature. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of the antistatic polypropylene composite film, comprising: extruding and casting the raw material composition used to form each layer after an optional granulation process to form the composite film; optionally, the method further includes stretching the obtained composite film, preferably biaxially stretching.