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Molded shaving aid compositions, components and methode of manufacture

A technology for shaving aids and compositions, which can be used in pharmaceutical formulations, cosmetic preparations, cosmetic preparations, etc., can solve problems such as inconvenience and difficulty, and achieve the effects of improving performance and reducing total volume.

Active Publication Date: 2008-11-12
THE GILLETTE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Shaving in this manner can be difficult and frustrating as it generally requires the shaver to stand on the slippery shower floor, often in an awkward position, holding a bar of wet soap in one hand while operating with the other razor

Method used

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  • Molded shaving aid compositions, components and methode of manufacture
  • Molded shaving aid compositions, components and methode of manufacture
  • Molded shaving aid compositions, components and methode of manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0122] Two control samples of the shaving aid composition were prepared using a common commercially available pour-on soap base. Resistance to wear was determined by measuring the number of shaves before significant degradation in shaving performance, with the results noted as "#shaves" in the tables described below. The formulations and results are listed in Table 1:

[0123] Table 1

[0124] Control 1

Embodiment 2

[0126] In this example, melting point and wear agents were added to a common pourable soap base and formulated into three different shaving aid compositions: one containing no polyoxyethylene, while the other two included varying amounts and molecular weights Distributed polyoxyethylene. The number of shaves before a significant decrease in shaving performance was measured, and an abrasion test was performed in which the amount of shaving aid composition remaining after being subjected to the abrasion test was determined, expressed as a percentage. Abrasion testing used throughout the examples in this specification included the wet wheel method described above, using the loop portion of the hook and loop closure system as the abrasive surface; 25.4 cm (10 inches) wheel diameter; 1.1 rad / s (10 rpm) wheel rotational speed; load of 200 g; 30 rotations of the wheel; and a shaving aid composition 13.6 mm wide, 36.6 mm long, 10 mm high, and having a 5° taper from the center of the c...

Embodiment 3

[0131]Six samples of molded shaving aid compositions comprising polyoxyethylene were prepared and subjected to abrasion testing under the same conditions as those present in Example 2 (also including a control sample without polyoxyethylene) . Formulations and results are listed in Table 3:

[0132] table 3

[0133] Control

[0134] As can be seen, an increase in the amount of polyoxyethylene results in increased abrasion resistance of the molded shaving aid composition. Also, an increase in the molecular weight of polyoxyethylene results in increased abrasion resistance. Finally, polymers containing both polyethylene / polybutene / mineral oil blends and silicone crosslinked polymers (sample F) were better than those containing only polyethylene / polybutene / mineral oil blends and silicone crosslinked polymers. Molded shaving aid compositions of one of the polymers (Samples E and G) resulted in molded shaving aid compositions with higher abrasion resistance.

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Abstract

The present invention provides razors and components thereof, as well as methods of making such.

Description

technical field [0001] The present invention relates to shaving preparations, razors and cartridges. Background of the invention [0002] Razors for wet shaving typically include a blade unit carried by a handle. The blade unit includes one or more elongated blades. Each blade has a sharp edge, such as a straight edge. If it is intended to discard the entire razor when the blade becomes dull, the blade unit can be fixedly mounted on the handle. Alternatively, the blade unit may be detachably attached to the handle so that an old blade unit can be replaced with a new one. Replaceable blade units are commonly referred to as cartridges. [0003] Some shaves (especially women) use this type of razor in the shower. For example, when shaving the legs, women typically first apply a soap film or lather to the area to be shaved and shave that area, then apply soap to another area and shave that area. This process is repeated until the shave is complete. Shaving in this manner ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B21/44A61Q9/02A61K8/89
CPCA61K8/8111A61K8/0204A61K8/894B26B21/443A61Q9/00A61K8/361A61K8/895B26B21/44A61K8/86B26B21/222A61Q9/02A61K8/89
Inventor J·K·奥格莱迪M·J·韦斯特盖特C·E·科贝尔R·约翰逊M·S·莫里西徐云G·T·丹蒂J·安德森M·J·莫罗尼R·M·霍利翰
Owner THE GILLETTE CO