Fluorine-free fibrous treating compositions including a polycarbodiimide and an optional paraffin wax, and treating methods
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United States of America Patent
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Sep 21, 2021
Grant Date -
Jan 18, 2018
app pub date -
Feb 1, 2016
filing date -
Feb 13, 2015
priority date (Note) -
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Abstract
A fluorine-free composition includes at least one polycarbodiimide compound derived from a carbodiimidization reaction of a carbodiimidization reaction mixture comprising at least one oligomer, wherein the oligomer comprises at least one isocyanate end group and at least two repeating units, wherein each of the at least two repeating units comprises at least one hydrocarbon group having at least 16 carbon atoms. The composition may also include at least one paraffin wax. Such compositions are useful for treating fibrous substrates to enhance their water-repellency.
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International Classification(s)
- C14C:CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- D06M:TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0....
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