Dispersible nonwoven
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United States of America Patent
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Dec 6, 2016
Grant Date -
Feb 12, 2015
app pub date -
Apr 3, 2013
filing date -
Apr 11, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for forming a dispersible nonwoven substrate in an aqueous medium including: a) forming an aqueous nonwoven binder including a selected emulsion polymer wherein the polymer has been modified with a compound comprising a tri-substituted N-atom, the compound having a pKb of from 4 to 7; b) contacting a nonwoven substrate with the aqueous nonwoven binder; c) heating the contacted nonwoven to a temperature of from 120° C. to 220° C.; and d) immersing the contacted heated nonwoven in an aqueous medium having a final pH<5 is provided. A dispersible nonwoven substrate in an aqueous medium formed by the preceding method and a method for providing a dispersed nonwoven in an aqueous medium are also provided.
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International Classification(s)
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
- A47L:DOMESTIC WASHING OR CLEANING
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- D06M:TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
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