Described herein is a two-part condensation curable adhesive composition suitable for adhering a front lens having an inner surface coated with an anti-haze coating to a lamp body to create a sealed lamp unit. In general, once cured in place, residual ingredients from the adhesive composition or by-products of cure reactions thereof do not visibly inhibit functionality of the anti-haze coating of the sealed lamp unit.

A curable silicone composition is provided. The composition comprises: (A) an epoxy-functional silicone resin having monovalent aromatic hydrocarbon groups; (B) an epoxy-functional silicone; (C) a cationic photoinitiator; and (D) a silatrane derivative or a carbasilatrane derivative, wherein each derivative has at least one silicon atom-bonded alkoxy group per molecule. The composition has excellent curability with UV radiation, and further with heating, generally forms a cured product with excellent thermal and light resistance, and adhesion properties.

A UV curable silicone composition has exceptional curability by ultraviolet irradiation. The UV curable silicone composition includes (A) an organopolysiloxane composition selected from the following: (A-1) an organopolysiloxane composition comprising a linear organopolysiloxane in which both ends of the molecular chain are capped with alkenyl groups and/or a branched organopolysiloxane containing at least 2 alkenyl groups at the ends of the molecular chain, and an organopolysiloxane containing at least 2 thiol groups in side-chains of the molecular chain, wherein the thiol group content is 1% by mass or more per molecule, (A-2) an organopolysiloxane composition comprising a linear organopolysiloxane in which both ends of the molecular chain are capped with thiol groups, wherein the thiol group content is 1% by mass or more per molecule, and an organopolysiloxane containing at least 2 alkenyl groups in side-chains of the molecular chain and/or a resinous organopolysiloxane containing at least 2 alkenyl groups at the ends of the molecular chain, or (A-3) an organopolysiloxane composition comprising an alkenyl group- and aryl group-containing organopolysiloxane and a multifunctional thiol compound, but furthermore comprising an alkenyl group-containing resinous organopolysiloxane when the multifunctional thiol compound contains only a bifunctional thiol compound, and (B) a silicone-compatible photo-initiator comprising a compound selected from the following: (B-1) an alpha-hydroxyacetophenone, (B-2) a combination of an alpha-hydroxyacetophenone and an alpha-aminoalkylphenone, or (B-3) a combination of an alpha-hydroxyacetophenone and a mono-acylphosphine oxide, wherein the ratio between the thiol groups and alkenyl groups (SH/Vi ratio) included in the organopolysiloxane composition is 0.6 or more.

To provide a siloxane polymer containing a silsesquioxane unit and a chain siloxane unit in the main chain and having a reactive group. A siloxane polymer containing a repeating unit represented by Formula (1): ##STR00001## R.sup.0's independently represent C.sub.6-20 aryl or C.sub.5-6 cycloalkyl; R.sup.1 independently represent a hydrogen atom, C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.2, R.sup.4, and R.sup.6 independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, or C.sub.1-40 alkyl; R.sup.3 represents a monovalent group having a reactive group; R.sup.5's independently represent C.sub.6-20 aryl, C.sub.5-6 cycloalkyl, C.sub.7-40 arylalkyl, C.sub.1-40 alkyl, or C.sub.1-20 alkoxy; y1, y2, and z are an integer of 0 to 30; g′ is 0 or 1; and, in the case of y1=y2=z=0, at least one terminal is the group represented by Formula (2).

Provided are a polymer-coated substrate in which a polymer layer formed on the surface of a substrate is stable for a long period of time even in a liquid environment, and a medical analysis device including the polymer-coated substrate. Included is a polymer-coated substrate which includes a substrate, a silane compound layer formed on a surface of the substrate, and a polymer layer formed on the silane compound layer.

A composition for forming a protective coating on an electronic device that is in the form of a non-Newtonian fluid that exhibits both viscous and elastic properties, and that forms at least one coating that is hydrophobic, oleophobic, or oleophilic is disclosed. The viscous and elastic properties associated with the non-Newtonian fluid allows the composition to redistribute after being applied as a coating an electronic device. Methods for protecting an electronic device from liquid contaminants by applying the disclosed composition and electronic devices comprising the composition are also disclosed. An electronic device, such as a printed circuit board, having a film made of the composition is also disclosed.

Described herein, inter alia, are fluorosilicone polymers; compositions comprising fluorosilicone polymers; and lenses comprising the polymers, and compositions.

A condensation curable silicone adhesive composition comprising a siloxane-imide base polymer, condensation curable organopolysiloxane crosslinker, a condensation catalyst and an additive is shown and described herein. The composition is curable at relatively room temperatures and shows good heat stability.

Polyester-modified, branched organosiloxanes can be used as plastics additives. Corresponding plastics compositions contain at least one plastics additive (A) and at least one plastic (B). The at least one plastics additive (A) can be one or more polyester-modified, branched organosiloxanes. Moulding compounds or shaped bodies can contain this plastics composition. The plastics composition, the moulding compounds, and the shaped bodies are useful,

A method of forming a porous three-dimensional (3D) silicone article is disclosed. The method comprises I) printing a first composition with a 3D printer to form a first layer from the first composition. The method further comprises II) printing a second composition on the first layer with the 3D printer to form a second layer from the second composition on the first layer. At least one of the first and second compositions comprises a silicone composition. In the method, step II) may optionally be repeated with independently selected composition(s) for any additional layer(s). At least one of the first and second layers does not consist of linear filaments. Finally, the method comprises III) exposing the layers to a solidification condition. The porous three-dimensional (3D) silicone article defines a plurality of voids.