• 专利标题:   Hemp-based plastic composition for use in e.g., injection-molded plastic comprises hemp material combined with thermoplastic polymeric material and additive selected to confer or enhance a property of the plastic.
  • 专利号:   WO2021067280-A1, CA3152562-A1, KR2022075394-A, EP4038134-A1, US2022356355-A1
  • 发明人:   TUBBS K, ETTENSON F, BENHAIM P, DEAN G, CREW T, FRANCINE E, BENHEIMPOLE, DINGREG
  • 专利权人:   HEMP PLASTIC CO, HEMP PLASTIC CO, HEMP PLASTIC CO
  • 国际专利分类:   A61P031/04, C08J011/00, C08J005/18, C08L023/06, C08L023/12, C08L097/02, C08J003/12, C08L101/00, C08L055/02, C08L101/16
  • 专利详细信息:   WO2021067280-A1 08 Apr 2021 C08J-011/00 202135 Pages: 27 English
  • 申请详细信息:   WO2021067280-A1 WOUS053291 29 Sep 2020
  • 优先权号:   US908322P, US908339P, US908351P, US908360P, US908369P, CA3152562, US17754284, KR714705

▎ 摘  要

NOVELTY - A hemp-based plastic composition comprises 5-80% hemp material combined with thermoplastic polymeric material and greater than or equal to 1 additive selected to confer or enhance a property of the plastic. USE - A hemp-based plastic composition for use in injection-molded plastic, rotomold plastic, thermoformed plastic, form-extruded, blowmold plastic, straw plastic, film, nano hemp-graphene plastic, scratch and mar resistant plastic, antimicrobial plastic, hemp liquid natural resin, hemp natural adhesive, hemp textile polymer, three-dimensional (3D) printer plastic; filament-extruded, enhanced biodegradable plastic, automotive plastic, aerospace plastic, food-service plastic, outdoor/high impact resistant plastic; indoor/paintable plastic, and post consumer resin plastic (all claimed). ADVANTAGE - The composition can be formulated to deliver desired characteristics such as antiblock; antifog; antimicrobial; antioxidant; antistat; antiwarp; clarification; colorant; conductivity promotion; conductivity reduction; cycle time reduction; density enhancement; density reduction; dimensional stability enhancement; flame retardation; foaming promotion; foaming reduction; friction promotion; friction reduction; heat stabilization; hydrophobicity enhancement; hydrophobicity reduction; impact modification; infrared (IR) absorption; IR reflection; laser marking; mold release; nucleation; odor masking; optical brightening; polymer compatibility; polymer coupling; polymer processing enhancement; process-temperature lubrication; purge promotion; release promotion; resistance to acid and base; scent modification; scuff resistance; slip modification; stiffness enhancement; torque release; tracing; UV blocking; UV inhibition; UV stabilization; and vapor corrosion inhibition. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for making the compositions which involves combining a hemp material with a thermoplastic polymeric material and greater than or equal to 1 additive, to create a polymeric base composition such that 1-80% of the composition is hemp material; exposing the base composition to conditions selected from greater than or equal to 2 of elevated heat, elevated pressure, combination with a fourth material, molding, injecting, layering or extruding process, and finishing process; and recovering the hemp-based plastic composition.