Described herein is a method for producing a contact lens comprising a central photochromic zone that has a diameter of about 13 mm or less and is concentric with the central axis of the contact lens. The method comprises: applying, in the center of the molding surface of a male mold half, a drop (having a volume of about 5 μL or less) of a first polymerizable fluid composition containing at least one photochromic compound and a relatively-high molecular weight polysiloxane vinylic crosslinker for increasing the viscosity and adhesion on the molding surface of the male mold half; dosing a second polymerizable fluid composition in a female mold hald; closing the female mold hald with the male mold half with the drop thereon to form a molding assembly; and curing the second polymerizable fluid composition and the drop of the first polymerizable fluid composition in the molding assembly.

Described herein is a method for producing a contact lens comprising a central photochromic zone that has a diameter of about 13 mm or less and is concentric with the central axis of the contact lens. The method comprises: applying, in the center of the molding surface of a male mold half, a drop (having a volume of about 5 μL or less) of a first polymerizable fluid composition containing at least one photochromic compound and a relatively-high molecular weight polysiloxane vinylic crosslinker for increasing the viscosity and adhesion on the molding surface of the male mold half; dosing a second polymerizable fluid composition in a female mold hald; closing the female mold hald with the male mold half with the drop thereon to form a molding assembly; and curing the second polymerizable fluid composition and the drop of the first polymerizable fluid composition in the molding assembly.

An adhesive promoter, an organic silicon encapsulant composition, and an organic silicon encapsulant are provided. The adhesive promoter used for the organic silicon encapsulant is formed from a borosiloxane polymer represented by a general formula of: (R.sup.1R.sup.2.sub.2SiO.sub.1/2).sub.x(R.sup.2R.sup.3SiO.sub.2/2).sub.y(R.sup.3SiO.sub.3/2).sub.z(SiO.sub.4/2).sub.i(BO.sub.(3-k)/2).sub.j(OR.sup.4).sub.k. R.sup.1 is a hydrogen atom or a C2-C6 alkenyl group. R.sup.2 and R.sup.4 are respectively a C1-C6 alkyl group. R.sup.3 is a C6-C12 aromatic group. In the general formula, x, y, z, i, j, and k represent a molar ratio. In the general formula, x, y, z, i, and j are a non-negative number smaller than or equal to 1, and k is a positive number ≤3. A sum of x, y, z, and i is 1, and x is larger than 0.

A process for preparing a cyclic polysiloxazane is disclosed. The cyclic polysiloxazane may optionally be converted to an a-alkoxy-ou-amino-functional polysiloxane. The cyclic polysiloxazane or the a-alkoxy-oo-amino-functional polysiloxane, may be used as a capping agent for a silanol-functional polyorganosiloxane in a process to make an amino-functional polyorganosiloxane.

A silsesquioxane derivative that can further contribute to improving heat conductivity. The silsesquioxane derivative represented in the following formula forms a matrix having exceptional heat conductivity due to curing.

[C5]

[SiO.sub.4/2].sub.s[R.sup.1—SiO.sub.3/2].sub.t[R.sup.2—SiO.sub.3/2].sub.u[H—SiO.sub.3/2].sub.v[R.sup.3.sub.2—SiO.sub.2/2].sub.w[H,R.sup.4.sub.2—SiO.sub.1/2].sub.x[R.sup.5.sub.3—SiO.sub.1/2].sub.y  (1)

[in the formula, R.sup.1 is a hydrosilylation-reactive organic group having a carbon-carbon unsaturated bond and having 2 to 30 carbon atoms, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently at least one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an aryl group having 5 to 10 carbon atoms and an aralkyl group having 6 to 10 carbon atoms, t, u, w and x are a positive number, and s, v and y are 0 or a positive number].

A curable white silicone composition that is capable of forming a cured product having a high optical reflectance as well as exceptional light resistance is provided. The curable white silicone composition includes (A) an organopolysiloxane having at least 2 alkenyl groups per molecule, (B) a cerium-containing organopolysiloxane, (C) a white pigment, and (D) a curing catalyst.

A tonneau system for use with a pickup truck. The tonneau system includes a frame and a tonneau cover having a plurality of tonneau sections moveable between a folded position and an unfolded position. The tonneau cover includes solar energy-receiving material secured to a top exposed surface of at least two of the tonneau sections. The solar energy-receiving material moves with their corresponding tonneau sections between the unfolded and folded positions. A battery, transformer, and/or electrical cabling system may be included within the circuit for power storage and conversion.

A room temperature curable organopolysiloxane composition comprises: (A) an organopolysiloxane having alkoxysilyl-containing groups at both molecular terminals; (B) an organopolysiloxane resin; (C) an alkoxysilane; and (D) a condensation-reaction catalyst. The room temperature curable organopolysiloxane composition exhibits good to excellent storage stability. In addition, the room temperature curable organopolysiloxane composition can form a cured product exhibiting good to excellent mechanical properties.

A room temperature curable organopolysiloxane composition comprises: (A) an organopolysiloxane having alkoxysilyl-containing groups at both molecular terminals; (B) an organopolysiloxane resin; (C) an alkoxysilane; and (D) a condensation-reaction catalyst. The room temperature curable organopolysiloxane composition exhibits good to excellent storage stability. In addition, the room temperature curable organopolysiloxane composition can form a cured product exhibiting good to excellent mechanical properties.

Provided is an ink-jet recording liquid set including a pretreatment liquid for ink-jet recording and an ink-jet ink, wherein the pretreatment liquid for ink-jet recording includes: composite resin particles in which a polyolefin resin is contained in a polyurethane resin; a coagulant; and water, and the ink-jet ink contains: a pigment; water; and 3-methoxy-1-butanol or 3-methoxy-3-methy-1-butanol.