Invention Grant
- Patent Title: Composition and process for whitening paper
- Patent Title (中): 美白纸的组成和工艺
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Application No.: US12997044Application Date: 2009-06-10
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Publication No.: US08354041B2Publication Date: 2013-01-15
- Inventor: Bernhard Hunke , Michael Kraemer , Andrei Tauber , Günter Klug
- Applicant: Bernhard Hunke , Michael Kraemer , Andrei Tauber , Günter Klug
- Applicant Address: DE
- Assignee: Blankophor GmbH & Co. KG
- Current Assignee: Blankophor GmbH & Co. KG
- Current Assignee Address: DE
- Agency: Cantor Colburn LLP
- Priority: EP80105927 20080611
- International Application: PCT/EP2009/057196 WO 20090610
- International Announcement: WO2009/150180 WO 20091217
- Main IPC: D21H21/36
- IPC: D21H21/36 ; C07D251/00 ; C09K11/06
Abstract:
A composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with alkylsulfonic acid groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.
Public/Granted literature
- US20110126996A1 COMPOSITION AND PROCESS FOR WHITENING PAPER Public/Granted day:2011-06-02
Information query
