Lubricating member for razor cartridges comprising metathesized unsaturated polyols
AssigneeThe Gillette Company
InventorsLuke Andrew Zannoni, Beth Ann Schubert, Rajan Keshav Panandiker, Joseph Jay Kemper, Robert John Strife, Safa Motlagh, Jeffrey John Scheibel, Alison Fiona Stephens, Philip Andrew Sawin
Life of this patent
Estimating the term…
Abstract
The invention relates to a lubricating member for a razor cartridge comprising a metathesized unsaturated polyol ester for improved lubrication.
Claims16
A lubricating member for use on a hair removal device, said lubricating member comprising a lubricating material comprising from 1% to 99% by weight of metathesized unsaturated polyol ester, said metathesized unsaturated polyol ester having a free hydrocarbon content, based on total weight of said metathesized unsaturated polyol ester, of from about 0.1% to about 3% and one or more of the following properties:
- (i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons;
- (ii) an oligomer index from greater than 0 to 1;
- and
- (iii) an iodine value of from about 30 to about 200;
- wherein said lubricating member is manufactured using one of an extrusion, injection molding, compression, or hot melt process, wherein:
- said extrusion process comprises heating to between 150° C. and 200° C.;
- said injection molding process comprises heating to between 165° C. and 250° C.;
- said compression process comprises applying a compression force of at least one kN;
- and
- said hot melt process comprises heating to between 55° C. and 85° C. and applying a pressure.
A lubricating member for use on a hair removal device, said lubricating member comprising a lubricating material comprising from 1% to 99% by weight of a composition comprising:
- a) a metathesized unsaturated polyol ester, said metathesized unsaturated polyol ester having a weight average molecular weight of from about 2,000 Daltons to about 50,000 Daltons and a free hydrocarbon content, based on total weight of said metathesized unsaturated polyol ester, of from about 0.1% to about 5% and one or more of the following properties:
- (i) an oligomer index from greater than 0 to 1;
- and
- (ii) an iodine value of from about 8 to about 200
- wherein said lubricating member is manufactured using one of an extrusion, injection molding, compression, or hot melt process, wherein:
- said extrusion process comprises heating said composition to between 150° C. and 200° C.;
- said injection molding process comprises said composition heating to between 165° C. and 250° C.;
- said compression process comprises applying a compression force of at least one kN to said composition;
- and
- said hot melt process comprises heating said composition to between 55° C. and 85° C. and applying a pressure.
Dependencies are inferred from the claim text.