公开(公告)号：US11441271B2

公开(公告)日：2022-09-13

申请号：US16267755

申请日：2019-02-05

申请人： Harshad Pande ,  Douglas W. Coffin ,  Mona Alinejad

发明人： Harshad Pande ,  Douglas W. Coffin ,  Mona Alinejad

IPC分类号： D21H11/10 ,  D21H27/00 ,  D21H25/00 ,  D21H15/02 ,  D21D1/00

摘要： Paper products such as tissues can be made using a furnish comprising surface enhanced pulp fibers (“SEPF”). In some embodiments, SEPF have a weighted average fiber length of at least 0.3 millimeters (mm) and an average hydrodynamic specific surface area of at least 10 square meters per gram (m2/g). In some embodiments, a furnish or a paper product can comprise at least 2 % SEPF by dry weight. In some embodiments, a paper product comprising SEPF can be formed from a furnish having a freeness of 650 ml Canadian Standard Freeness (CSF) or less, optionally 600 ml CSF or less.

公开(公告)号：US11617311B2

公开(公告)日：2023-04-04

申请号：US16627480

申请日：2018-06-28

申请人： Harshad Pande ,  Michael A. Bilodeau ,  Jonathan M. Spender ,  Jacob John

发明人： Harshad Pande ,  Michael A. Bilodeau ,  Jonathan M. Spender ,  Jacob John

IPC分类号： A01G13/02 ,  C09K17/52 ,  D21H27/00 ,  D21H19/12 ,  D21H21/32

摘要： Lignin formulations for making light-selective mulch, methods of making such lignin formulations, light-selective mulches comprising substrates treated with lignin formulations, and methods of making such light-selective mulches. Some methods involve preparing aqueous lignin formulations that can be used as coatings that, in turn, can be applied to a substrate, such as a paper web, to form a biodegradable, light-selective mulch. Some such mulches blocks at least some light in the ultraviolet and blue/green ranges (350 nm to 500 nm) of the visible light spectrum to inhibit weed growth below the mulch, while also transmitting light in the red/infrared ranges to heat the soil below the mulch.