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US 10,717,839 B2Granted
Compositions in the form of dissolvable solid structures
AssigneeThe Procter & Gamble Company
InventorsMin Mao, Mark William Hamersky, Robert Wayne Glenn, Jr., Todd Ryan Thompson
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Abstract
Described are dissolvable, porous solid structures formed using certain vinyl acetate-vinyl alcohol copolymers. The copolymer and the porosity of the structure allow for liquid flow during use such that the structure readily dissolves to provide a desired consumer experience. Also described are processes for making open cell foam and fibrous dissolvable solid structures.
Claims4
A fibrous dissolvable solid Structure comprising a plurality of fibers, the Structure comprising:
- (a) from about 5 wt % to about 65 wt % of at least one anionic surfactant;
- (b) from about 5 wt % to about 50 wt % of a first copolymer comprising vinyl acetate and vinyl alcohol units, wherein the first copolymer comprises from about 65% to about 82.5% alcohol units and has a MW of from about 20,000 to about 60,000;
- and
- (c) from about 5 wt % to about 50 wt % of a second copolymer comprising vinyl acetate and vinyl alcohol units, wherein the second copolymer comprises from about 65% to about 82.5% alcohol units and has a MW of from about 70,000 to about 500,000.
1 more element
Dependencies are inferred from the claim text.