Method of forming an oral care implement
AssigneeColgate-Palmolive Company
InventorsShyamala Pillai, Remo Villiger, Marco Bohner, Peter Zurfluh
Life of this patent
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Abstract
An oral care implement having a handle, and a head having a main body that is coupled to the handle. The head may include a release component coupled to the main body. The release component may include a water-dissolvable matrix comprising a first polymer having a processing temperature greater than or equal to 150° C. The oral care implement may include a plurality of tooth cleaning elements. A method of forming an oral care implement which includes injection molding a composition comprising a graft polymer onto a head of an oral care implement at a temperature equal to or greater than 130° C. to form a water-dissolvable polymer matrix.
Claims20
A method of forming an oral care implement comprising:
- introducing a composition comprising a graft polymer into a chamber of a head of an oral care implement at a temperature equal to or greater than 130° C. to form a water-dissolvable polymer matrix, a first portion of the composition passing through apertures in a floor of the chamber to form one or more release islands that protrude from a rear surface of the head.
A method of forming an oral care implement comprising:
- introducing a composition into a chamber of a head of the oral care implement, the composition comprising a graft polymer that comprises units formed from caprolactam, vinyl acetate, and ethylene glycol to form a water-dissolvable polymer matrix, a first portion of the composition passing through apertures in a floor of the chamber to form one or more release islands that protrude from a rear surface of the head.
A method of forming an oral care implement comprising:
- introducing a composition comprising a blend of a graft polymer and an additive into a chamber of a head of an oral care implement at a temperature equal to or greater than 130° C. to form a water-dissolvable polymer matrix, a first portion of the composition passing through apertures in a floor of the chamber to form one or more release islands that protrude from a rear surface of the head;
- and
- wherein the additive has a decomposition temperature less than or equal to 150° C.
Dependencies are inferred from the claim text.