LUBRICATING MEMBERS HAVING HYDROPHOBIC COMPONENTS FOR RAZOR CARTRIDGES

• US 20160177217A1
• Filed: 12/08/2015
• Published: 06/23/2016
• Est. Priority Date: 12/18/2014
• Status: Abandoned Application

• Current Assignee: The Gillette Company LLC (The Procter & Gamble Company)
• Original Assignee: Gillette Company (The Procter & Gamble Company)
• Inventors: Serout, Adrien Loic, Moloney, Michael John, Haines, Christopher, Stephens, Alison Fiona, Bradford, Valerie Jean
• Application Number:
  US14/961,947
• Publication Number:
  US 20160177217A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61K 8/022 Powders; Compacted Powders
• CPC Class Codes: A61K 8/31 Hydrocarbons
• CPC Class Codes: A61K 8/86 Polyethers
• CPC Class Codes: A61K 8/891 saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• CPC Class Codes: A61Q 9/02 Shaving preparations
• CPC Class Codes: C10M 107/30 Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C10M 127/00 Lubricating compositions characterised by the additive being a non- macromolecular hydrocarbon petroleum fractions C10M159/04
• CPC Class Codes: C10M 145/40 Polysaccharides, e.g. cellulose
• CPC Class Codes: C10M 155/02 Monomer containing silicon
• CPC Class Codes: C10M 169/04 Mixtures of base-materials and additives
• CPC Class Codes: C10M 169/041 the additives being macromolecular compounds only
• CPC Class Codes: C10M 169/044 the additives being a mixture of non-macromolecular and macromolecular compounds
• CPC Class Codes: C10M 2203/0206 used as base material
• CPC Class Codes: C10M 2203/1006 used as base material
• CPC Class Codes: C10M 2207/0215 used as base material
• CPC Class Codes: C10M 2207/1253 used as base material
• CPC Class Codes: C10M 2207/401 used as base material
• CPC Class Codes: C10M 2209/1045 used as base material
• CPC Class Codes: C10M 2229/025 used as base material
• CPC Class Codes: C10M 2229/0415 used as base material
• CPC Class Codes: C10N 2020/011 : Cloud point
• CPC Class Codes: C10N 2020/06 : Particles of special shape or size
• CPC Class Codes: C10N 2020/091 : Water solubility
• CPC Class Codes: C10N 2040/50 : Medical uses
• CPC Class Codes: C10N 2050/02 : dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating

Abstract

The invention relates to a solid compressed lubricating member for a razor cartridge comprising from 10% to 90% by weight of a particulate material comprising water soluble polymer and from 12% to 40% by weight of a hydrophobic compound or mixtures thereof; wherein at least a portion of said water soluble polymer particulate is spray coated with said hydrophobic compound and methods of manufacture thereof.

Claims

1. A solid compressed lubricating member for a razor cartridge comprising:

i) from 10% to 90% by weight of a particulate material comprising a water soluble polymer

ii) from 12% to 40% by weight of a hydrophobic compound or mixtures thereof;

wherein at least a portion of said water soluble polymer is spray coated with said hydrophobic compound.

2. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said lubricating member comprises from 12% to 30% by weight of said hydrophobic compound.

3. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said hydrophobic compound or mixtures thereof are selected from the group consisting of natural, synthetic and silicone oils and or waxes and mixtures thereof;

trigylcerides, skin active agents, sensates and mixtures thereof.

4. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said hydrophobic compound or mixtures thereof comprises capric and or caprylic triglycerides, grape seed oil, olive oil, phenylated silicones, shea butter, cocoa butter, lanolin, essential oils, peppermint oil, isohexadecane, petrolatum, dimethicones and or mixtures thereof.

5. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said hydrophobic compound has a water solubility of 1 part to 1000 parts or greater, preferably 10000 parts or greater of water.

6. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said hydrophobic compound has a melting point of less than 45°

C., preferably less than 40°

C., more preferably less than 30°

C., most preferably 25°

C. or less.

7. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said water soluble polymer comprises a polyethylene oxide polymer.

8. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein at least 95%, preferably substantially 100% of said water soluble polymer particulate is spray coated with said hydrophobic compound.

9. The solid cold compressed lubricating member for a razor cartridge according to claim 1, wherein said lubricating member has a bulk density of 1000 kg/m³ to 1200 Kg/m³.

10. The solid compressed lubricating member for a razor cartridge according to claim 1, wherein said particulate has an average particle size of from 50 microns to 1250 microns.

11. The solid compressed lubricating member for a razor cartridge according to claim 1, in the form of a tablet.

12. The method of manufacturing a lubricating member according to claim 1, comprising the steps of:

a) providing a particulate of said water soluble polymer,

b) spray coating said hydrophobic compound onto said water soluble polymer particulates, and

c) applying pressure onto said spray coated particulates to form a tablet.

13. The method according to claim 12, further comprising the steps of forming a liquid of said hydrophobic compound prior to said spray coating step.

14. The method according to claim 12, further comprising the steps of filling a preform with said particulates prior to the application of pressure at 25°

C. and removing said compressed form from said preform.

15. The hair removal cartridge for a shaving razor comprising a lubricating member according to claim 1.