• 专利标题:   Producing solid foam by forming homogeneous suspension comprising solidifying agent, forming foam mixture which comprises bubbles by mixing air bubbles into suspension, injecting foam mixture via nozzle to form foam pattern and laying foam pattern on moving surface and solidifying foam mixture.
  • 专利号:   WO2022074289-A1, FI202105230-A, CA3194651-A1, AU2021356186-A1, KR2023081720-A
  • 发明人:   ALAVA M, KOIVISTO J, PUISTO A, PUISTOANTI
  • 专利权人:   AALTOKORKEAKOULUSAEAETIOE SR, WOAMY OY, WOAMY OY
  • 国际专利分类:   B29C044/20, B29C044/34, B29C044/46, B29C067/20, C08J009/28, C08J009/30, C08J009/00, C08L001/28, B29C044/28, B29C044/30
  • 专利详细信息:   WO2022074289-A1 14 Apr 2022 202240 Pages: 30 English
  • 申请详细信息:   WO2022074289-A1 WOFI050651 04 Oct 2021
  • 优先权号:   FI007160, FI005231, CA3194651, KR715463

▎ 摘  要

NOVELTY - A method for producing a solid foam continuously, comprises forming a homogeneous suspension from a raw material in which the suspension comprises a solidifying agent, forming a foam mixture which comprises bubbles by mixing air bubbles into the suspension, and injecting the foam mixture via at least one nozzle to form a foam pattern and laying the foam pattern on a moving surface and solidifying the foam mixture of the foam pattern in order to form a solid foam such that the bubbles of the foam mixture shrink in off-length directions to form the shaped bubbles. USE - The method is used for producing solid foam in a continuous process and roll to roll process, and the solid foam is used in packaging industry and/or construction industry (claimed). ADVANTAGE - The method generates anisotropic foams in a continuous roll-to-roll process allowing for scalability to mass production. The solid foam has superior thermal insulation and mechanical properties. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) an apparatus for producing a solid foam continuously, comprising at least one mixer for forming a homogeneous suspension from a raw material in which the suspension comprises a solidifying agent, at least one foamer for forming a foam mixture which comprises bubbles by mixing air bubbles into the suspension and at least one nozzle for injecting the foam mixture to form a foam pattern, a moving surface on which the foam pattern is laid and at least one solidifying device for solidifying the foam mixture of the foam pattern to form a solid foam such that the bubbles of the foam mixture shrink in off-length directions to form the shaped bubbles; and (2) a solid foam product comprising a foam mixture formed from a suspension comprising a solidifying agent and bubbles, and the foam mixture has been injected to form a foam pattern and the foam mixture of the foam pattern has been solidified to the solid foam and the bubbles in the solid foam has been shrunk in off-length directions to form the shaped bubbles.