Waterborne polyamide and their chain extension with isocyanates to form cationic waterborne polyureas dispersions

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United States of America Patent

PATENT NO 10640616
SERIAL NO

15535797

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Abstract

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An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.

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Patent Owner(s)

Patent OwnerAddress
LUBRIZOL ADVANCED MATERIALS INC9911 BRECKSVILLE ROAD LEGAL DEPARTMENT CLEVELAND OH 44141

International Classification(s)

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  • 2015 Application Filing Year
  • C08J Class
  • 2246 Applications Filed
  • 1523 Patents Issued To-Date
  • 67.81 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erdodi, Gabor Macedonia, US 28 138
Lai, John Ta-Yuan Broadview Heights, US 35 163
Pourahmady, Naser Solon, US 22 143

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Patent Citation Ranking

  • 2 Citation Count
  • C08J Class
  • 64.36 % this patent is cited more than
  • 5 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges390209701 - 1011 - 200255075100125150175200225250275300325350375400425

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