The purpose of the present invention is to provide a novel primary aminosiloxane compound and a method for producing same, and more specifically, a novel primary aminomethylsiloxane compound and a method for producing same.

This primary aminosiloxane compound is represented by formula (1).

H.sub.2N—CR.sup.1R.sup.2—Si(OSiR.sup.3R.sup.4R.sup.5).sub.3.  Formula (1):

[In formula (1), R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each independently denote a hydrogen atom or a C1-30 monovalent hydrocarbon group which may be bonded via an oxygen atom or a nitrogen atom and in which some or all carbon atom-bonded hydrogen atoms may be substituted with halogen atoms or hydroxyl groups.]

A silirane-functionalized compound that consists of a substrate to which a least two silirane groups of the formula (1) are covalently bonded, a mixture containing the silirane-functionalized compounds, and a process for preparing siloxanes using the mixture are described herein.

The invention provides a thermal cast-molding method for producing colored silicone hydrogel contact lenses. The method of the invention comprises: (1) forming, on a molding surface of a mold, a transferable colored polymeric composite film which comprises or consists essentially of a first polymeric film, a second polymeric film and a cured colored image encapsulated therewithin; (2) dispensing a silicone hydrogel lens formulation into the lens-forming cavity of the mold; and (4) thermally curing the third polymerizable composition within the lens-forming cavity for at least about 40 minutes to form the colored silicone hydrogel contact lens, whereby the transferable, colored, and polymeric composite film detaches from the first or second molding surface and becomes integral with the body of the silicone hydrogel contact lens.

An isocyanate group-containing organosilicon compound shown by the following general formula (1), and having three or more R.sup.2 groups per molecule and a viscosity at 25° C. of 100 mm.sup.2/s or less. This provides an organosilicon compound which has three or more isocyanate groups per molecule, and which is suitable as a crosslinking agent, low in viscosity, and excellent in handleability. R.sup.1.sub.aR.sup.2.sub.bSiO.sub.(4−a−b)/2 (1), where each R.sup.1 is identical to or different from one another, represents a monovalent alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group, a monovalent aryl group having 6 to 10 carbon atoms, or a monovalent aralkyl group having 7 to 10 carbon atoms, and has no aliphatic unsaturated group; and R.sup.2 represents an organic group shown by a formula —CH.sub.2CH.sub.2Si(CH.sub.3).sub.2OSi(CH.sub.3).sub.2CH.sub.2CH.sub.2CH.sub.2NCO.

A catalyzed hydroformylation process of an alkenyl-functional organosilicon compound with carbon monoxide and hydrogen produces an aldehyde-functional organosilicon compound.

A branched organosilicon compound (“compound”) having the general formula (R1).sub.3SiX—NR.sup.2-D-Z(R.sup.7).sub.a is provided. In the formula: each R.sup.1 is selected from R and —OSi(R.sup.4).sub.3, with the proviso that at least one R.sup.1 is —OSi(R.sup.4).sub.3; where each R.sup.4 is selected from R, —OSi(R.sup.5).sub.3, and —[OSiR.sub.2].sub.mOSiR.sub.3; where each R.sup.5 is selected from R, —OSi(R.sup.6).sub.3, and —[OSiR.sub.2].sub.mOSiR.sub.3; where each R.sup.6 is selected from R and —[OSiR.sub.2].sub.mOSiR.sub.3; with the proviso that at least one of R.sup.4, R.sup.5 and R.sup.6 is —[OSiR.sub.2].sub.mOSiR.sub.3; where each R is independently a substituted or unsubstituted hydrocarbyl group; and where 0≤m≤100; each of X and D is an independently selected divalent linking group; each R.sup.2 and R.sup.7 is an independently selected substituted or unsubstituted hydrocarbyl group or H; Z is O or N; and subscript a is the valency of Z. Also provided is a method of preparing the compound and a composition including the compound.

Disclosed are an active layer composition for a solar cell containing a two-dimensional conjugated polymer that has excellent thermal/chemical stability and may improve power conversion efficiency of an organic solar cell via realization of high open-circuit voltage and short-circuit current, a preparation method of the composition, and an organic solar cell containing the composition. The composition contains a two-dimensional conjugated polymer having a repeating unit represented by a following Chemical Formula 4-2 as an electron donor material:

##STR00001##

where in the Chemical Formula 4-2, n is an integer of 5 to 2000.

The present invention provides a siloxane compound having a novel structure, the compound not being reactive with a polyamic acid which is a polyimide precursor. In addition, provided is a polyimide precursor composition having improved storage stability by adding the siloxane compound as an enhancer for adhesion between a polyimide and a substrate made of an inorganic material. According to the present invention, provided is a multifunctional polyimide film having improved adhesiveness with a substrate made of an inorganic material while having improved optically isotropic characteristics and reduced residual stress characteristics with respect to a substrate.

A method of preparing an acrylate-functional branched organosilicon compound (“compound”) is provided, and comprises reacting (A) a branched organosilicon compound and (B) an acrylate compound in the presence of (C) a catalyst, wherein component (A) has the general formula X—Si(R.sup.1).sub.3, where X comprises a halogen-functional moiety and each R.sup.1 is selected from R and —OSi(R.sup.4).sub.3, with the proviso that at least one R.sup.1 is —OSi(R.sup.4).sub.3; each R.sup.4 is selected from R, —OSi(R.sup.5).sub.3, and —[OSiR.sub.2].sub.mOSiR.sub.3; each R.sup.5 is selected from R, —OSi(R.sup.6).sub.3, and —[OSiR.sub.2].sub.mOSiR.sub.3; each R.sup.6 is selected from R and —[OSiR.sub.2].sub.mOSiR.sub.3; each R is an independently selected hydrocarbyl group; and 0≤m≤100; with the proviso that at least one of R.sup.4, R.sup.5 and R.sup.6 is —[OSiR.sub.2].sub.mOSiR.sub.3. The compound prepared by the method, a copolymer comprising the reaction product of the compound and a second compound, a method of forming the copolymer, and a composition comprising the copolymer are each also provided.

Described is a process for producing preferably trifluoromethanesulfonic acid-acidified, end-equilibrated, acetoxy-bearing siloxanes which comprises reacting cyclic siloxanes, in particular comprising D.sub.4 and/or D.sub.5, and/or cyclic branched siloxanes of the D/T type with acetic anhydride using preferably trifluoromethanesulfonic acid as catalyst and with addition of acetic acid, wherein the cyclic branched siloxanes of the D/T type are mixtures of cyclic branched siloxanes of the D/T type which may contain not only siloxanes comprising D and T units but also siloxanes comprising Q units.