Abstract: A silicone hybrid pressure sensitive adhesive composition that cures to form a silicone hybrid pressure sensitive adhesive contains a polydiorganosiloxane having reactive groups. The reactive groups include a silicon bonded (meth)acryloxyalkyl-functional group in a pendant position and optionally a silicon bonded aliphatically unsaturated hydrocarbon group in a terminal position. The silicone hybrid pressure sensitive adhesive composition can be cured via hydrosilylation reaction on a surface of a substrate to form a protective film. The protective film can be used to protect a passivation layer during a process for fabricating an (opto)electronic device such as a flexible organic light emitting diode display. The protective film can be exposed to radiation to reduce tack and facilitate detaching the protective film from the passivation layer.

Abstract: A cationic surfactant is disclosed. The cationic surfactant has the general formula [Z-D-N(-D1-NR13+)a(R)2-a][X?]a where Z is a siloxane moiety or an unsubstituted hydrocarbyl moiety having from 5 to 20 carbon atoms, D is a covalent bond or a divalent linking group, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, each R1 is an independently selected unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each X is an anion.

Abstract: Two-part condensation curable silyl-modified polymer (SMP) based sealant compositions, in particular two-part condensation curable SMP based translucent sealant compositions containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt.

Abstract: A one-part room temperature vulcanisable (RTV) silicone composition containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt which cures to a silicone elastomer which may be used as a clear sealant which avoids discolouration and loss of adhesion upon aging.

Abstract: One-part condensation curable silyl-modified polymer (SMP) based sealant compositions in particular one-part condensation curable SMP based sealant compositions containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt which compositions upon cure provide elastomeric sealants having low modulus and a high elastic recovery.

Abstract: A one-part low modulus room temperature vulcanisable (RTV) silicone composition containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt which cures to a low modulus silicone elastomer which may be used as a non-staining (clean) sealant having high movement capability.

Abstract: A branched polysiloxane compound and methods for its preparation are disclosed. The branched polysiloxane compound may be used as a heat transfer fluid.

Abstract: A reaction composition contains (a) an allyl polyether having the following formula: CH2=CHCH2O-Aa-B where, (i) subscript a is 2 to 170; (ii) A is selected from: —CH2CH2O—; —CH2CH(CH3)O—; —CH(CH3)CH2O—, CH2CH(CH2CH3)O—; —CH(CH2CH3)CH2O, —CH2CF(CF3)O—, —CF(CF3)CF2O— and —CF2CF(CF3)O—; and (iii) B is selected from —H, —CH3, —CH2CH3, —CH2CH2CH3, —CH2CH2CH2CH3, —C(O)CH3, and —CF2CF2CF3; (b) A silyl hydride functional siloxanc comprising the following siloxane units [R2HSiO1/2]m[R2SiO2/2]d[R2SiO3/2]t[SiO4/2]q wherein d+t+q is one or more and wherein: (i) R is selected from hydrocarbyl groups liaing from one to 8 carbon atoms; (ii) subscript m is 2 or more; (iii) subscript d is zero to 20; (iv) subscript t is zero to 2; (v) subscript q is zero to 2; and (c) a platinum-based hydrosilylation catalyst; where there are at least 4 molar equivalents of silyl hydride functionalities relative to allyl functionalities in the reaction composition.

Abstract: The present invention relates to a composition comprising an aqueous dispersion of acrylate-siloxane copolymer particles comprising structural units of an acrylate monomer; an acid monomer; and a siloxane acrylate monomer of formula I: where R, R1, R2, Y and x are as defined herein. The composition has a high solids content, a low concentration of siloxane acrylate monomer and low coagulum levels. The composition is useful for forming coatings with improved hydrophobicity, stain resistance, and aesthetic/haptic properties compared with conventional all-acrylic compositions.

Abstract: A composition contains a mixture of silyl hydride, a silanols and/or silyl ether, a Lewis acid catalyst and an amine having the following formula: R1R2R3N; where the nitrogen is not a member of an N?C—N linkage and each of R1, R2, and R3 is independently selected from a group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; and wherein at least one of R1, R2 and R3 is a conjugated moiety connected to the nitrogen by a conjugated carbon.

Abstract: A composition contains a mixture of silyl hydride, an alpha-beta unsaturated ester, a Lewis acid catalyst and an amine having the following formula: R1R2R3N; where the nitrogen is not a member of an N?C—N linkage and where each of R1, R2, and R3 is independently selected from a group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; and wherein at least one of R1, R2 and R3 is a conjugated moiety connected to the nitrogen by a conjugated carbon.

Abstract: A composition contains a mixture of silyl hydride, a siloxane, a Lewis acid catalyst and an amine having the following formula: R1R2R3N; where the nitrogen is not a member of an N?C—N linkage and where each of R1, R2, and R3 is independently selected from a group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; and wherein at least one of R1, R2 and R3 is a conjugated moiety connected to the nitrogen by a conjugated carbon.

Abstract: A composition contains a mixture of silyl hydride, an epoxide, a Lewis acid catalyst and an amine having the following formula: R1 R2 R3 N; where the nitrogen (N) is not a member of a N?C—N linkage and wherein each of R1, R2, and R3 is independently selected from a group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; and wherein at least one of R1, R2, and R3 is a conjugated moiety connected to the nitrogen by a conjugated carbon if the epoxide is linear and wherein none of R1, R2, and R3 are connected to the amine nitrogen with a conjugated carbon if the epoxide is a cyclic epoxide.

Abstract: A branched organosilicon compound (“compound”) having the general formula (R1)3SiX—NR2-D-Z(R7)a is provided. In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; where each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; where each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; where each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 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 R2 and R7 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.

Abstract: A branched organosilicon compound (“compound”) is provided having the general formula: (R1)3Si—X—NR2R3, where X is a divalent linking group; R2 is H or R; R3 comprises an acryloxy moiety; each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; where each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; where each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; and where each R6 is selected from R and —[OSiR2]mOSiR3, with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 0?m?100; and each R is a substituted or unsubstituted hydrocarbyl group. Also provided is a method of preparing the compound, a copolymer comprising the reaction product of the compound and a second compound reactive with the compound, a method of forming the copolymer, and a composition including at least one of the compound and the copolymer.

Abstract: A method of preparing an acryloxy-functional organosilicon compound is provided. The method comprises reacting (A) an initial (C) a catalyst. The initial organosilicon compound (A) has one alcohol functional group (i.e., is monohydroxyl functional). The catalyst (C) has the formula M[RC(O)CHC(O)R]4, where M is a group IV transition metal and each R is an independently selected substituted or unsubstituted hydrocarbyl group. An acryloxy-functional organo silicon compound prepared by the method is also provided. The acryloxy-functional organosilicon compound is prepared in increased purity, without relying on toxic catalysts.

Abstract: A branched organosilicon compound is provided having the general formula: (R1)3—X—[SiR20]n—SiR2R3. In the formula: each R is independently a substituted or unsubstituted hydrocarbyl group; each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 0?m?100; X is a divalent linking group; 1?n?10; and R3 has the general -D-Op—(CqH2qO)r—R8. In R3, D is a divalent hydrocarbon linking group, subscript p is 0 or 1, subscript q is independently selected from 2 to 4 in each moiety indicated by subscript r, subscript r is from 1 to 500, and R8 is selected from substituted or unsubstituted hydrocarbyl groups and H.

Abstract: A branched organosilicon compound (“compound”) having the general formula (R1)3Si—X—Y is provided. In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R is independently a substituted or unsubstituted hydrocarbyl group; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 0<m?100; X is a divalent linking group; and Y is selected from one of formulas (1)-(111) described herein. Also provided is a method of preparing the compound via hydrosilylation reaction, a copolymer comprising the reaction product of the compound and a second compound reactive with the compound, a method of forming the copolymer, and a composition including at least one of the compound and the copolymer.

Abstract: A composition comprises: a branched organosilicon compound; an acrylate-functional compound other than the branched organosilicon compound; and optionally a carrier vehicle. The branched organosilicon compound has the following general formula (I): (R1)3Si—X (I); where X comprises a acryloxy-functional moiety, and each R1 is selected from —OSi(R4)3 and R, with the proviso that at least one R is —OSi(R4)3; where each R is a substituted or unsubstituted hydrocarbyl group; where each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; where each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; where each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; and where 0?m?100. A method of preparing a copolymer is further provided.

Abstract: A branched organosilicon compound is provided which has the general formula (R1)3 Si—X—NR2—X1—NR22- In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R1 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R1 and R6 is —[OSiR2]mOSiR3; 0<m?100. Each R is independently a substituted or unsubstituted hydrocarbyl group, e.g. a methyl group. Each of X and X1 is an independently selected divalent linking group, e.g. a divalent hydrocarbon linking group. Each R2 independently comprises a substituted or unsubstituted hydrocarbyl group, a polyether group, or H. At least one R2 comprises a polyether group. A method of preparing the branched organosilicon compound and a composition comprising the branched organosilicon compound are also provided.