Invention Grant
- Patent Title: Method for improving strength and retention, and paper product
- Patent Title (中): 提高强度和保留性的方法和纸制品
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Application No.: US13980088Application Date: 2012-01-19
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Publication No.: US09399838B2Publication Date: 2016-07-26
- Inventor: Janne Laine , Markus Korhonen , Juha Merta
- Applicant: Janne Laine , Markus Korhonen , Juha Merta
- Applicant Address: FI Helsinki
- Assignee: UPM-Kymmene Corporation
- Current Assignee: UPM-Kymmene Corporation
- Current Assignee Address: FI Helsinki
- Agency: Merchant & Gould P.C.
- Priority: FI20115054 20110120
- International Application: PCT/FI2012/050045 WO 20120119
- International Announcement: WO2012/098296 WO 20120726
- Main IPC: D21H15/02
- IPC: D21H15/02 ; D21H17/25 ; D21H21/10 ; D21H21/18 ; D21H11/18
Abstract:
The invention relates to a method for improving strength and retention in the manufacture of paper. According to the invention, a composition containing microfibrillated cellulose is provided in a fiber suspension, and from 0.1 to 10 w-% of microfibrillated cellulose by mass of the fiber suspension is added to improve the strength and retention of the product to be formed. In addition, the invention relates to a corresponding paper product.
Public/Granted literature
- US20130292075A1 METHOD FOR IMPROVING STRENGTH AND RETENTION, AND PAPER PRODUCT Public/Granted day:2013-11-07
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