公开(公告)号：CA3094593A1

公开(公告)日：2019-10-10

申请号：CA3094593

申请日：2019-04-03

Applicant: STORA ENSO OYJ

Inventor： MAYES DUNCAN ,  PYNNONEN JANNE ,  TORNBLOM MARIA

IPC: B27N1/00 ,  B27K3/15 ,  B27N3/04 ,  B29C51/00 ,  C08J5/06 ,  D04H1/00 ,  D04H1/04

Abstract: The present invention is directed to a method for manufacturing a drylaid mat suitable for thermoforming. The present invention is directed to a dry forming process, wherein cellulosic or lignocellulosic fibers have been impregnated, but not cross linked, with a cross linking agent prior to forming in a dry forming method. The invention is also directed to dry-laid mats manufactured according to the method as well as to thermoformed products manufactured from such dry-laid mats.

公开(公告)号：CA3003848A1

公开(公告)日：2017-05-26

申请号：CA3003848

申请日：2016-11-16

Applicant: STORA ENSO OYJ

Inventor： KALLSTROM JOHAN ,  KALLSTROM FREDRIK ,  MALMQVIST MARTIN ,  BERGSTROM ROGER ,  JOHANSSON CONNY ,  TORNBLOM MARIA ,  KARLSSON SOFI

IPC: C08J5/04 ,  B29C70/12 ,  C08J3/12 ,  D21H11/08

Abstract: The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP),thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP),but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.