Patent ID: 9149417
Filing Date: 2015-10-06
Classification: A61C,A61K,A61Q

Abstract:
1. A tooth whitening product for a mouth having teeth and gums, the tooth whitening product comprising: a dissolving strip for tooth whitening, said strip comprising at least a first solid dissolvable tooth contacting layer, said tooth contacting layer comprising a tooth whitening active in an amount which reacts within a predetermined time when placed on a tooth; a dissolvable outer layer comprising a blend of polymers having different molecular weights, the blend of polymers being selected to dissolve after said predetermined dissolving time of said tooth contacting layer has elapsed, wherein said outer layer contains said tooth whitening active on said tooth and away from said gums until said active is substantially used up; and a bond formed between said tooth contacting layer and said outer layer by partially dissolving said tooth contacting layer into said outer layer when said tooth contacting layer is cast onto said outer layer.