Elastomeric silicone depilatory
AssigneeRhone-Poulenc Specialties Chimiques
InventorGuy Cyprien
Life of this patent
Estimating the term…
Abstract
Unwanted hair is removed from selected skin area by applying a coating of a curable organopolysiloxane composition thereon, permitting the organopolysiloxane composition to crosslink into a silicone elastomer, e.g., in the form of a solid layer or foam, and embed unwanted hair therein, and then stripping the silicone elastomer and embedded hair from said skin area, whereby said skin area is essentially depilated.
Claims9
A process for the removal of unwanted hair from predetermined skin area, comprising the steps of (a) applying to said skin area an effective depilating amount of a coating of a curable organopolysiloxane composition comprising (i) a diorganopolysiloxane polymer containing at least 2 vinyl radicals bonded to silicon atoms per molecule and having a viscosity of at least 50 mPa.s at 20 C., (ii) a diorganopolysiloxane polymer containing at least 3 hydrogen atoms bonded to silicon atoms per molecule and having a viscosity of at lesat 50 mPa.s at 20 C., (iii) a filler, and (iv) a metal catalyst wherein components (i)-(iv) are present in amounts sufficient to produce a composition which is effective for the removal of hair;
- (b) permitting said organopolysiloxane composition to crosslink into a silicone elastomer and embed unwanted hair therein;
- and (c) stripping the silicone elastomer and embedded hair from said skin area, whereby said skin area is essentially depilated.
A process for the removal of unwanted hair from predetermined skin area, comprising the steps of (a) applying to said skin area an effective depilating amount of a coating of a curable organopolysiloxane composition comprising (i) an alpha,omega-dihydroxydiorganopolysiloxane oil, (ii) a filler, (iii) a crosslinking agent which comprises a silane containing at least three hydrolyzable groups or a polysiloxane originating from the partial hydrolysis of such silane, and (iv) a metal catalyst, an amine, or mixture thereof wherein components (i)-(iv) are present in amounts sufficient to produce a composition which is effective for the removal of hair;
- (b) permitting said organopolysiloxane composition to crosslink into a silicone elastomer and embed unwanted hair therein;
- and (c) stripping the silicone elastomer and embedded hair from said skin area, whereby said skin area is essentially depilated.
A process for the removal of unwanted hair from predetermined skin area, comprising the steps of (i) applying to said skin area an effective depilating amount of a coating of a curable organopolysiloxane composition comprising (a) an alpha,omega-dihydroxydiorganopolysiloxane polymer having a viscosity of at least 50 mPa.s at 25.degree. C., (b) a diorganopolysiloxane polymer containing from 1 to 75 % by weight of siloxane units containing a hydrogen atom bonded directly to a silicon atom, (c) up to 50% by weight, based on the weight of the polymer (a), of at least one silanol, low molecular weight hydroxylated siloxane, water or alcohol, and (d) tin catalyst wherein components (a)-(d) are present in amounts sufficient to produce a composition which is effective for the removal of hair;
- (ii) permitting said organopolysiloxane composition to crosslink into an elastomeric silicone foam and embed unwanted hair therein;
- and (iii) stripping the silicone foam and embedded hair from said skin area, whereby said skin area is essentially depilated.
Dependencies are inferred from the claim text.