Skin engaging member comprising ethylene vinyl acetate
View Patent ↗A skin engaging member suitable for use in a hair removal device, said skin engaging member comprising ethyl vinyl acetate having a low level of vinyl acetate and a water soluble polymer.
1. A hair removal device comprising at least one blade, and a skin engaging member comprising:
a. about 51% to about 70% of a polyethylene oxide by weight of the skin engaging member; and
b. about 22% to about 40% of an ethylene vinyl acetate by weight of the skin engaging member, said ethylene vinyl acetate having a vinyl acetate % of about 18 or less, wherein said ethylene vinyl acetate is selected from the group consisting of:
i. an ethylene vinyl acetate having 18% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 4% to about 7.2%, by weight of the skin engaging member;
ii. an ethylene vinyl acetate having 12% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 2.6% to about 4.8%, by weight of the skin engaging member;
iii. an ethylene vinyl acetate having 9% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 2.0% to about 3.6%, by weight of the skin engaging member;
iv. an ethylene vinyl acetate having 2.5% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 0.55% to about 1%, by weight of the skin engaging member; and
v. a mixture thereof.
2. The hair removal device of claim 1 , further comprising at least one of polyethylene, polypropylene, polystyrene, butadiene-styrene copolymer, polyacetal, acrylonitrile-butadiene-styrene copolymer, polyurethane, or blends thereof.
3. The hair removal device of claim 1 , wherein said vinyl acetate % is not determined on an as added basis.
4. The hair removal device of claim 1 , further comprising a skin care active.
5. The hair removal device of claim 1 , further comprising an encapsulated active.
6. A process of forming a skin engaging member of claim 1 comprising:
1. providing a polyethylene oxide;
2. providing ethylene vinyl acetate having a vinyl acetate % of 18% or less;
3. forming a matrix from said polyethylene oxide and ethylene vinyl acetate;
4. extruding said matrix into a skin engaging member comprising:
a. about 51% to about 70% of a polyethylene oxide by weight of the skin engaging member; and
b. about 22% to about 40% of an ethylene vinyl acetate by weight of the skin engaging member, said ethylene vinyl acetate having a vinyl acetate % of about 18 or less, wherein said ethylene vinyl acetate is selected from the group consisting of:
i. an ethylene vinyl acetate having 18% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 4% to about 7.2%, by weight of the skin engaging member;
ii. an ethylene vinyl acetate having 12% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 2.6% to about 4.8%, by weight of the skin engaging member;
iii. an ethylene vinyl acetate having 9% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 2.0% to about 3.6%, by weight of the skin engaging member;
iv. an ethylene vinyl acetate having 2.5% vinyl acetate, and the skin engaging member has a total vinyl acetate level of from about 0.55% to about 1%, by weight of the skin engaging member; and
v. a mixture thereof.
7. The process of claim 6 , further comprising a step of extruding said matrix at a process temperature between about 100 to about 160° C.
8. The process of claim 6 , further comprising a step of mixing said polyethylene oxide and said ethylene vinyl acetate prior to forming said mixture.
9. The process of claim 6 , further comprising a step of providing a skin care active to be included into said matrix.
10. The process of claim 6 , further comprising a step of providing an encapsulated active to be included into said matrix.
11. The process of claim 6 , further comprising a step of providing at least one of polyethylene, polypropylene, polystyrene, butadiene-styrene copolymer, polyacetal, acrylonitrile-butadiene-styrene copolymer, polyurethane, or blends thereof, to be included into said matrix.
12. The process of claim 6 , wherein said vinyl acetate % is not determined on an as added basis.