Microplastic removal using adhesives
AssigneesThe Procter & Gamble Company, The Regents of the University of Michigan
InventorsDimitris Ioannis Collias, Anne McNeil, Paul Takunda Chazovachii, Woojung Ji
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Abstract
Articles comprising pressure-sensitive adhesives and methods of their use for removing micro- and nanoplastic particles from various media, including wastewater effluent, laundry effluent, and indoor air, are disclosed.
Claims9
A method for removing micro- or nanoplastic particles from a medium, the method comprising contacting the micro- or nanoplastic particles in the medium with an article comprising one or more pressure-sensitive adhesives, wherein the one or more pressure-sensitive adhesives comprise a compound of formula (I) or formula (II):
- wherein:
- each n is independently an integer from 1 to 10,000;
- each R1, R2, and R3, if present, is independently selected from the group consisting of:
- wherein:
- each m is independently an integer selected from the group consisting of 1, 2, 3, 4, 5, 6, 7, and 8;
- p and q are each independently an integer selected from the group consisting of 1, 2, 3, 4, 5, 6, 7, and 8;
- u is an integer selected from the group consisting of 1, 2, 3, 4, and 5;
- v is an integer selected from the group consisting of 1, 2, 3, and 4;
- w is an integer selected from the group consisting of 1, 2, and 3;
- each R4 is independently selected from the group consisting of H, C1-C8 substituted or unsubstituted branched or straight-chain alkyl, hydroxyl, C1-C8alkoxyl, amino, cyano, —CF3, carbonyl, carboxyl, C1-C8 alkynyl, acyl, carbamoyl, halogen, nitro, mercapto, and thiol;
- and
- R5 is a C3-C20 branched alkyl.
Dependencies are inferred from the claim text.