Long lasting and waterproof lash extension composition

A method for forming a filament on a keratin fiber comprising:

• (a) applying to said keratin fiber a composition comprising:
• (i) one or more cross-linkable polymers, wherein the one or more cross-linkable polymers comprise:
• (a) a siloxane polymer, wherein the siloxane polymer has the following structure:
• wherein,
• m is an integer greater than 2;
• Z1 and Z2 are independently selected from the group consisting of a bond between Si and the adjacent olefinic carbon atom, optionally substituted, branched or straight chain alkyl, alkenyl, alkynyl, aryl, heteroaryl, alkyl-aryl, alkoxy, O, S, and NRa, wherein Ra is selected from a group consisting of an alkyl, alkynyl, aryl, heteroaryl, and alkyl-aryl;
• R1, R2, R3, R4, R5, and R6 are independently selected at each occurrence from the group consisting of branching points in the organopolysiloxane backbone whereby D, T, or Q structures are introduced, hydroxyl, hydrogen, carboxy, cyano, halogen, optionally substituted, branched, straight chain, or cyclic alkyl, alkenyl, alkynyl, aryl, alkyl-aryl, heteroalkyl, heteroaryl, alkoxy, amino, alkyl amino, and
• wherein Z is selected from the group consisting of a bond between Si and the adjacent olefinic carbon atom, optionally substituted, branched or straight chain alkyl, alkenyl, alkynyl, aryl, heteroaryl, alkyl-aryl, alkoxy, O, S, and NRa, wherein Ra is selected from a group consisting of an alkyl, alkynyl, aryl, heteroaryl, and alkyl-aryl, and
• wherein Ra, Rb, and Rc are independently selected from hydrogen, hydroxyl, carboxy, cyano, halogen, optionally substituted branched or straight chain alkyl, alkenyl, alkynyl, aryl, heteroaryl, alkoxy, amino, or alkyl amino;
• R7 and R8 are independently selected from the group consisting of hydrogen and unsubstituted branched or straight chain alkyl, alkenyl, and alkynyl;
• and
• R9, R10, R11 and R12 are independently selected the group consisting of hydrogen, hydroxyl, hydrido, carboxy, cyano, halogen, optionally substituted branched, straight chain or cyclic alkyl, alkenyl, alkynyl, heteroalkyl, aryl and heteroaryl, alkyl-aryl, alkoxy, amino, and alkyl amino, and
• (b) a hydrosilane, wherein the hydrosilane has the following structure:
• wherein R1*, R2*, R3*, R4*, R5*, and R6* are independently selected at each occurrence from the group consisting of branching points in the organopolysiloxane backbone whereby D, T, or Q structures are introduced, alkyl, alkenyl, alkynyl, aryl heteroaryl, alkoxy, amino, alkyl amino, dialkyl amino, hydroxyl, hydrido, carboxy, cyano, halogen, and
• wherein Z is selected from the group consisting of a bond between Si and the adjacent olefinic carbon atom, optionally substituted, branched or straight chain alkyl, alkenyl, alkynyl, aryl, heteroaryl, alkyl-aryl, alkoxy, O, S, and NRa, wherein Ra is selected from a group consisting of an alkyl, alkynyl, aryl, heteroaryl, and alkyl-aryl, and
• wherein Ra, Rb, and Rc are independently selected from hydrogen, hydroxyl, carboxy, cyano, halogen, optionally substituted branched or straight chain alkyl, alkenyl, alkynyl, aryl, heteroaryl, alkoxy, amino, or alkyl amino, and
• (ii) a cross-linking agent, wherein said crosslinking agent is a catalyst selected from the group consisting of palladium, rhodium, and platinum;
• (b) drawing out a portion of said polymers beyond a terminal end of said keratin fiber while the polymers are in a fluid or partially fluid state;
• (c) permitting said polymers to cure to a solid, thereby forming a filamentous extension on said keratin fiber, and
• wherein said composition is free of colorants.