ROOF COVER BOARD WITH IMPROVED FRAGMENT SIZE AND PLASTIC-TO-PAPER RATIO

    公开(公告)号:US20230173713A1

    公开(公告)日:2023-06-08

    申请号:US17541138

    申请日:2021-12-02

    IPC分类号: B29B17/02 B29B17/04 B29C43/00

    摘要: Disclosed herein is a roof cover board and a method of manufacturing an improved cover board product. The method includes receiving waste materials or first use materials, the waste materials or first use materials containing a mixture of cellulose, plastic and other materials; separating the cellulose and the plastic from the mixture; shredding the separated cellulose using a first shredder into a stream of cellulose and shredding the separated plastic using a second shredder into a stream of plastic; selecting a cellulose to plastic ratio from a plurality of cellulose to plastic ratios; metering shredded cellulose from the stream of cellulose and shredded plastic from the stream of plastic according to the selected cellulose to plastic ratio; mixing the metered shredded cellulose and plastic; forming said mixture into a mat; and consolidating the mat into a finished good using heat and pressure.