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US 5,855,874 AGranted
Dentifrice formulations containing liquid polyoxyalkylene compounds miscible in a liquid, polyalkylene glycol carrier
AssigneeBASF SE
InventorsSridhar Gopalkrishnan, Richard Holland
Life of this patent
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Abstract
A dentifrice composition comprising a liquid polyalkylene glycol carrier, and a liquid polyoxyalkylene compound miscible in said liquid polyalkylene glycol carrier.
Claims5
An oral care composition comprising:
- (a) a liquid polyalkylene glycol carrier and;
- (b) a liquid polyoxyalkylene compound miscible in said liquid polyalkylene glycol carrier, wherein said:
- liquid polyalkylene glycol carrier (a) is selected from the group consisting of:
- (i) liquid polyethylene glycols having a molecular weight of no more than about 600;
- (ii) liquid polyoxyalkylene glycols having a molecular weight greater than 600 and less than about 3000 of Formula I or mixtures of (I) and (ii):
- I-(EO).sub.a (AO).sub.b -M!.sub.x ;
- Formula I
- wherein in Formula I, I is an initiator or a mixture of initiators having at least two carbon atoms and at least two or more hydroxyl substituents;
- AO is a C.sub.3-4 alkylene oxide or a mixture of C.sub.3-4 alkylene oxides;
- EO is ethylene oxide;
- wherein, further EO and AO can be distributed randomly and/or arranged in a block sequence.
- M is Hydrogen or an alkali metal or alkaline earth metal;
- a is an integer from about 6-22;
- b is an integer from about 1-9;
- x is an integer from about 2-4;
- further provided that;
- said liquid polyoxyalkylene compound (b), which is miscible in (a), is represented by Formula II:
- I(AO).sub.a -(XO)-M!.sub.x Formula II
- wherein Formula II:
- I is an initiator or a mixture of initiators having at least two carbon atoms and two hydroxyl substituents;
- AO is a C.sub.3-4 alkylene oxide or mixtures of C.sub.3-4 alkylene oxide arranged in a block sequence;
- XO is (EO).sub.b (AO).sub.c wherein EO is ethylene oxide and EO and AO are distributed randomly;
- M is hydrogen or an alkali metal or an alkaline earth metal;
- a is an integer from 15-35;
- b is an integer from 50-150;
- c is an integer from 7-90;
- x is 2.
24 more elements
A dentifrice composition comprising:
- 1-55% abrasive, selected from the group consisting of anhydrous dicalcium phosphate, calcium carbonate calcium pyrophosphate and sodium bicarbonate,
- 0-0.6% of a fluoridating agent, selected from the group consisting of stannous fluoride, sodium fluoride, and sodium monoofluorophosphate
- 2-10% binders selected from the group consisting of gum karaya, tragacanth USP, sodium alginate;
- Irish moss and methyl cellulose,
- 0-5% thickening agent selected from the group consisting of collodial silica;
- 0-10% of a peroxygen source selected from the group consisting of hydrogen peroxide and sodium percarbonate
- 0-8% surfactants selected from the group consisting of sodium lauryl sulfate, sodium-N-lauryl sarcosinate;
- and dioctyl sodium sulfosuccinate,
- 0.1-10% of the liquid polyoxyalkylene compound (b) represented by Formula II:
- I(AO).sub.a -(XO)-M!.sub.x Formula II
- wherein in Formula II:
- I is an initiator or a mixture of initiators having at least two carbon atoms and two hydroxyl substituents;
- AO is a C.sub.3-4 alkylene oxide or mixtures of C.sub.3-4 alkylene oxide arranged in a block sequence;
- XO is (EO).sub.b (AO).sub.c wherein EO is ethylene oxide and EO and AO are distributed randomly;
- M is hydrogen or an alkali metal or an alkaline earth metal;
- a is an integer from 15-35;
- b is an integer from 50-150;
- c is an integer from 7-90;
- x is 2;
- 5-70% carriers selected from the group consisting of glycerin;
- propylene glycol;
- sorbital;
- liquid polyethylene glycol, and the liquid polyalkylene glycols ( a) represented by Formula:
- I--(EO).sub.a (AO).sub.b --M!.sub.x ;
- Formula I
- wherein in Formula I, I is an initiator or a mixture of initiators having at least two carbon atoms and at least two or more hydroxyl substituents;
- AO is a C.sub.3-4 alkylene oxide or a mixture of C.sub.3-4 alkylene oxides;
- EO is ethylene oxide;
- wherein, further EO and AO can be distributed randomly and/or arranged in a block sequence;
- M is Hydrogen or an alkali metal or alkaline earth metal;
- a is an integer from about 6-22;
- b is an integer from about 1-9;
- x is an integer from about 2-4.
30 more elements
Dependencies are inferred from the claim text.