A fiber alignment device is provided that includes a curable refractive index-matching gel that exhibits self-cleaning and self-healing characteristics upon multiple cycles of insertion and removal of an optical fiber.

A crosslinkable composition is based on organosilicon compounds that include

(A) organopolysiloxanes of the formula (I), the formula (I) being (R.sup.7O).sub.3-aSiR.sup.3.sub.aO(SiR.sup.4.sub.2O).sub.nSiR.sup.3.sub.a(OR.sup.7).sub.3-a, and
(B) siloxanes of the formula (II), the formular (II) being

##STR00001##

with the proviso that the sum of all x in formula (II) is greater than 0.

A crosslinkable composition is based on organosilicon compounds that include

(A) organopolysiloxanes of the formula (I), the formula (I) being (R.sup.7O).sub.3-aSiR.sup.3.sub.aO(SiR.sup.4.sub.2O).sub.nSiR.sup.3.sub.a(OR.sup.7).sub.3-a, and
(B) siloxanes of the formula (II), the formular (II) being

##STR00001##

with the proviso that the sum of all x in formula (II) is greater than 0.

The present invention relates to siloxane hydrogen carrier compounds and to a method for producing hydrogen from said siloxane hydrogen carrier compounds.

There is described an intermediate transfer member for digital offset printing, comprising: a cured silicone release layer formed by curing a curable silicone release formulation comprising: a polyalkylsiloxane containing at least two vinyl groups having a weight average molecular weight of 60,000 g/mol or less; a polyalkylsiloxane containing two vinyl groups having a weight average molecular weight of at least 65,000 g/mol; a polyalkylsiloxane cross-linker containing at least two Si—H bonds; and a catalyst or a photoinitiator. There is also described a method of producing an intermediate transfer member, and a curable silicone release formulation for an intermediate transfer member.

A release coating composition comprises (A) an organopolysiloxane containing at least two (2) ethylenically unsaturated groups, (B) an organopolysiloxane containing at least 2 Si—H groups per molecule, and (C) a hydrosilylation catalyst. If the organopolysiloxane (A) contains only 2 ethylenically unsaturated groups, the organopolysiloxane (B) contains on average more than 2 Si—H groups per molecule. The composition further comprises (D1) a hydrosilylation inhibitor comprising a maleimide of the general formula (I):

##STR00001##

In formula (I), A.sup.3 represents a hydrogen atom or a hydrocarbyl or substituted hydrocarbyl group having 1 to 18 carbon atoms, and A.sup.1 and A.sup.2 each represent a hydrogen atom or a hydrocarbyl or substituted hydrocarbyl group having 1 to 18 carbon atoms. The composition yet further comprises (D2) a second hydrosilylation inhibitor selected from acetylenic compounds, ethylenically unsaturated isocyanates, acetylenically unsaturated silanes and unsaturated dicarboxylic acid diesters or a maleate compound or a mixture thereof.

A release coating composition comprises (A) an organopolysiloxane containing at least two (2) ethylenically unsaturated groups, (B) an organopolysiloxane containing at least 2 Si—H groups per molecule, and (C) a hydrosilylation catalyst. If the organopolysiloxane (A) contains only 2 ethylenically unsaturated groups, the organopolysiloxane (B) contains on average more than 2 Si—H groups per molecule. The composition further comprises (D1) a hydrosilylation inhibitor comprising a maleimide of the general formula (I):

##STR00001##

In formula (I), A.sup.3 represents a hydrogen atom or a hydrocarbyl or substituted hydrocarbyl group having 1 to 18 carbon atoms, and A.sup.1 and A.sup.2 each represent a hydrogen atom or a hydrocarbyl or substituted hydrocarbyl group having 1 to 18 carbon atoms. The composition yet further comprises (D2) a second hydrosilylation inhibitor selected from acetylenic compounds, ethylenically unsaturated isocyanates, acetylenically unsaturated silanes and unsaturated dicarboxylic acid diesters or a maleate compound or a mixture thereof.

Curable organopolysiloxane compositions and their cured products with superior properties are described as well as their uses as materials for optical devices, such as LEDs.

Curable organopolysiloxane compositions and their cured products with superior properties are described as well as their uses as materials for optical devices, such as LEDs.

The modified graphene includes a structure represented by the following formula (I), wherein the modified graphene has a ratio (g/d) of an intensity “g” of a G band to an intensity “d” of a D band of 1.0 or more in a Raman spectroscopy spectrum thereof:
Gr1-Ar1-X1-(Y1).sub.n1  (I)
in the formula (I), Gr1 represents a single-layer graphene or a multilayer graphene, Ar1 represents an arylene group having 6 to 18 carbon atoms, X1 represents a single bond, a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms, or a group obtained by substituting at least one carbon atom in a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms with at least one structure selected from the group consisting of —O—, —NH—, ##STR00001##
—CO—, —COO—, —CONH—, and an arylene group.