Star macromolecules for personal and home care
AssigneeATRP Solutions, Inc.
InventorsWojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
Life of this patent
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Abstract
A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.
Claims19
A star macromolecule represented by Formula X:
- [(P1)q1-(P2)q2]t-Core-[(P3)q3]r Formula X
- wherein:
- Core represents a crosslinked polymeric segment;
- P1 represents a homopolymeric segment comprised of repeat units of monomeric residues of polymerized hydrophobic monomers;
- P2 represents a homopolymeric segment comprised of repeat units of monomeric residues of polymerized hydrophilic monomers;
- P3 represents a homopolymeric segment comprised of repeat units of monomeric residues of polymerized hydrophilic monomers;
- q1 represents the number of repeat units in P1 and has a value between 1 and 50;
- q2 represents the number of repeat units in P2 and has a value between 30 and 500;
- q3 represents the number of repeat units in P3 and has a value between 30 and 500;
- r represents the number of homopolymeric arms covalently attached to the Core;
- t represents the number of copolymeric arms covalently attached to the Core;
- and
- wherein the molar ratio of r to t is in the range of between 20:1 and 2:1.
Dependencies are inferred from the claim text.