Dentrifice composition comprising microbial heteropolysaccharide
AssigneeLever Brothers Company
InventorsRoger B. Cox, David C. Steer
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Abstract
An heteropolysaccharide known as Bipolymer PS 87 comprises glucose, galactose, mannose, glucuronic acid and fucose. Biopolymer PS 87 is pseudoplastic, has a consistency at 20.degree. C. of at least 150 poise and a yield stress value at 20.degree. C. of at least 30 dynes/cm.sup.2. Bipolymer PS 87 is synthesised by a strain of Bacillus polymyxa or a genetically similar micro-organism and has many domestic and industrial uses as a suspending agent or thickener.
Claims2
A dentifrice composition exhibiting pseudoplasticity comprising water, a humectant, a surfactant, a solid particulate abrasive and an amount effective to generate said pseudoplasticity of Biopolymer PS 87, said Biopolymer PS 87 being a heteropolysaccharide which comprises from 40 to 45% by weight of glucose, from 10 to 20% by weight galactose, from 25 to 30% by weight mannose, from 6 to 13% by weight glucuronic acid and from 0 to 1.5% by weight fucose, a 1% by weight solution of said Biopolymer PS 87 having pseudoplastic properties, a consistency at 20.degree. C. of at least 150 poise and a yield stress value at 20.degree. C. of at least 30 dynes/cm.sup.2.
Dependencies are inferred from the claim text.