Water-based pressure sensitive adhesive compositions and methods of making same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221559
APP PUB NO 20200079979A1
SERIAL NO

16493829

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Abstract

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Water-based pressure sensitive adhesive compositions are disclosed comprising (a) an acrylic emulsion having a glass transition temperature of less than or equal to 20° C., (b) optionally, a dispersant or a silane-containing compound, and (c) an ethylene or propylene copolymer emulsion. In some embodiments, (a) comprises from 75 to 99 wt % of the compositions, (b), when present, comprises from 0.1 to 5 wt % of the compositions, and (c) comprises from 0.1 to 25 wt % of the composition, each based on the dry weight of the compositions. Methods for preparing water-based pressure sensitive adhesive compositions are also disclosed comprising emulsion polymerizing at least one unsaturated monomer, thereby forming an emulsion polymer having a glass transition temperature of less than or equal to −10° C. and blending the emulsion polymer together with a dispersant or silane-containing compound and an ethylene or propylene copolymer emulsion. Water-based pressure sensitive adhesives and pressure sensitive adhesive films are also disclosed.

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Patent Owner(s)

  • ROHM AND HAAS COMPANY; DOW GLOBAL TECHNOLOGIES LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Filippis Mario Shanghai, CN 1 0
Einsla, Melinda L Royersford, US 11 30
Griffith,, Jr William B North Wales, US 15 33
Qu, Zhaohui Valbonne, FR 40 183
Sehanobish, Kalyan Sanford, US 64 754
Seyfried, Cathie Shanghai, CN 1 0
Uhl, Isabelle Valbonne, FR 11 4
Yadav, Vinita Royersford, US 9 2
Yang, Miao Valbonne, FR 58 134

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