Two-component polyurethane composition

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United States of America Patent

PATENT NO 11945902
APP PUB NO 20210309791A1
SERIAL NO

17265328

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Abstract

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A two-component polyurethane composition comprising: an aqueous dispersion comprising an emulsion polymer and a specific sulphate and/or sulfonate surfactant, and a water-dispersible polyisocyanate; the emulsion polymer with a weight average molecular weight of 70,000 g/mol or less comprising, by weight based on the weight of the emulsion polymer, greater than 0.25% of structural units of a phosphorous-containing acid monomer and/or salts thereof, greater than 15% of structural units of a hydroxy-functional alkyl (meth)acrylate, structural units of an monoethylenically unsaturated nonionic monomer, and from zero to 10% of structural units of an additional acid monomer and/or salts thereof; and a process of preparing the two-component polyurethane composition.

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Patent Owner(s)

Patent OwnerAddress
DOW GLOBAL TECHNOLOGIES LLC2211 H H DOW WAY MIDLAND MI 48674

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dombrowski, Gary W Chester Springs, US 13 51
Lin, Daoshu Shanghai, CN 12 2
Shu, Shujun Shanghai, CN 6 5
Tang, Jia Shanghai, CN 191 840
Yun, Dong Shanghai, CN 31 177
Zheng, Baoqing Shanghai, CN 20 39

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