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Oral care compositions

An oral care and composition technology, applied in the field of oral care compositions, can solve the problems of swelling, bursting or leakage, and difficulty in preparation of oral care compositions

Pending Publication Date: 2019-08-02
COLGATE PALMOLIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, peroxides can be highly reactive and thus can be difficult to formulate
In addition, hydrogen peroxide can spontaneously decompose to form oxygen (O 2 ) and water, so that oral care compositions using hydrogen peroxide may swell, burst, or leak when stored, so that the remaining formulation may not have enough peroxide remaining to effectively clean and whiten teeth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0029] As used herein, unless the context clearly dictates otherwise, the term "or" is an inclusive operator and is equivalent to the term "and / or". Unless the context clearly dictates otherwise, the term "based on" is not exclusive and allows for being based on additional factors not described. In the specification, the recitation "at least one of A, B, and C" includes embodiments comprising: A, B, or C; multiple instances of A, B, or C; or A / B, A / C, B Combinations of / C, A / B / B / B / B / C, A / B / C, etc. Additionally, throughout the specification, the meanings of "a", "an" and "the" include plural referents. The meaning of "in" includes "in" and "on".

[0030] It will also be understood that although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first object, component or step could be termed a second object, compon...

Embodiment 1

[0097] An oral care composition comprising the ingredients listed in Table 1 was prepared by adding the formulated amounts of PVP-VA and triacetin to a Ross mixer and mixing at high speed for 5 minutes without applying vacuum. The resulting gel was then mixed with the formulated amount of PVP-HP. 1% by weight of triacetin was replaced by 1% by weight of water in Oral Care Composition #2 to test the stability of non-aqueous oral care compositions even in the presence of water.

[0098] The potential effectiveness of tooth whitening oral care compositions can be measured in terms of active oxygen content. For example, the term active oxygen can relate to the amount of peroxide present in the composition. One oxygen in each peroxide group is considered "active". The percentage of active oxygen (AO) or hydrogen peroxide (HP) in a given composition can be defined by Equation 1 below:

[0099] Formula 1

[0100] [AO]% = equivalent of AO * MW of AO / sample weight

[0101] In on...

Embodiment 2

[0115] Oral care compositions #3 and #4 included other ingredients commonly used in oral care compositions. Additionally, Oral Care Composition #4 contained a much greater amount of HP than is typically used to further test the stability of oral care compositions. An oral care composition comprising the ingredients listed in Table 3 was prepared by adding the formulated amounts of PVP-VA and PGDA to a beaker and mixing at 50°C until all solids were dissolved. This mixture was then added to a Ross mixer along with the formulated amount of non-aqueous dispersant and mixed at medium speed for 2 minutes without applying vacuum. The formulated amounts of pH adjuster, anti-calculus agent, sweetener, and fluoride ion source were then added to the Ross mixer and mixed at high speed under full vacuum for 5 minutes. The thickener was then added to the Ross mixer and mixed at medium speed for 3 minutes without applying vacuum. The abrasive was then added to the Ross mixer and mixed und...

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Abstract

An oral care composition, including a peroxydone complex, a dispersant, and a polyvinylpyrrolidone copolymer structure-building agent.

Description

Background technique [0001] Generally, structure builders (also known as gelling agents, thickening agents, or thickeners) are used in oral care compositions to increase the viscosity of the oral care composition and to provide structure to separate the other ingredients of the oral care composition For example, the brightener is maintained in a homogeneous state or in a chemically and / or physically stable environment. [0002] Structure builders can be hydrophilic or hydrophobic. Hydrophilic gelling agents such as polyvinylpyrrolidone (PVP), Carbopol, etc. are used to provide uniform structure to water-based products, while hydrophobic gelling agents such as plastic gels are used to contain large amounts of hydrophobic oils such as Mineral oil products. However, conventional structure builders such as PVP, carbomer, plastic gels, etc. will not be able to provide a completely uniform structure to the oral care composition when the oral care composition contains large amounts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/22A61K8/37A61K8/81A61Q11/00
CPCA61K8/375A61K8/22A61K8/8182A61Q11/00A61K8/8176A61K8/37A61K8/81A61K2800/48A61K8/86
Inventor 袁少棠许国锋罗伯特·迪科西莫沙伦·海尼
Owner COLGATE PALMOLIVE CO
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