The invention provides an actinically-polymerizable amphiphilic polysiloxane which comprises a polysiloxane polymer chain comprising a polylsiloxane segments comprising at least one siloxane unit having a low molecular weight hydrophilic polymer chain connected with a silicone atom of the siloxane unit, and (meth)acrylamido groups each covalently bonded to one of the ends of the polysiloxane polymer chain and/or to the end of one of low molecular weight hydrophilic polymer chains each connected with one silicone atom. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises repeating units derived from an actinically-polymerizable amphiphilic polysiloxane of the invention. In addition, the invention provides a method for making silicone hydrogel contact lenses using a water-based lens-forming formulation comprising an actinically-polymerizable amphiphilic polysiloxane of the invention and/or an actinically-crosslinkable silicone-containing prepolymer of the invention.

Heat-expandable microspheres having an almost spherical shape and high expansion performance and exhibiting good workability when mixed with a resin, a process for producing the heat-expandable microspheres, and applications thereof. The heat-expandable microspheres include a thermoplastic resin shell and a blowing agent encapsulated therein and vaporizable by heating. The thermoplastic resin is produced by polymerizing a polymerizable component containing a methacrylate monomer and a carboxyl-containing monomer, and optionally containing a nitrile monomer in an amount ranging from 0 to 30 parts by weight to 100 parts by weight of the total amount of the methacrylate monomer and the carboxyl-containing monomer. The blowing agent contains a hydrocarbon having at least 8 carbon atoms per molecule.

The present invention relates to a method for preparing a polymer composition, said method comprising the steps of: a) preparing a reaction mixture comprising as component A) an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers and as component B) a 1-alkene or a mixture of 1-alkenes; b) adding a Co(II) complex as a catalytic chain transfer agent to the reaction mixture; c) adding a radical initiator; and d) reacting the reaction mixture to obtain the polymer composition, wherein the total amount of the radical initiator added to the reaction mixture is at least 0.05% by weight relative to the total weight of components A) and B). The present invention also relates to the use of a Co(II) complex as catalytic chain transfer agent for the polymerization of a reaction mixture comprising an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers, a radical initiator, and a 1-alkene or a mixture of 1-alkenes, wherein the total amount of the radical initiator added to the reaction mixture is at least 0.05% by weight relative to the total weight of the ethylenically unsaturated monomer or mixture of ethylenically unsaturated monomers and the 1-alkene or mixture of 1-alkenes.

A power tool includes a housing and a hook assembly. The hook assembly includes a hook support and a hook member. The hook support is rotatably attached to the housing for rotation about a first axis. The hook member has a shank portion and a hook portion. The shank portion defines a second axis that is transverse to the first axis and is configured to rotate with respect to the hook support about the second axis,

A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.

A photosensitive element, including: a support; a photosensitive layer formed on the support by using a photosensitive resin composition containing a binder polymer, a photopolymerizable compound, and a photopolymerization initiator; and a protective film disposed on a surface of the photosensitive layer on a side opposite to the support, in which a content ratio (content of binder polymer/content of photopolymerizable compound) of the binder polymer to the photopolymerizable compound in the photosensitive resin composition is 1.10 to 1.80, and a ratio of an indentation depth measured when an indenter is squeezed in the photosensitive layer through a PET film by using a microhardness testing machine and retained at a load of 300 mN for 5 seconds to a thickness of the photosensitive layer is 45% or less.

In example embodiments, a negative electrode includes a current collector, and a negative electrode active material layer located on the current collector and including a negative electrode active material and a high ionic conductive binder. The high ionic conductive binder includes a first structural unit derived from a (meth)acrylic acid-based monomer, a second structural unit derived from a (C1-C10) alkylene glycol-based monomer, and a third structural unit derived from a zwitterionic vinyl-based monomer or a zwitterionic (meth)acryl-based monomer. A thickness of the negative electrode active material layer is greater than or equal to about 40 m. The negative electrode according to some example embodiments can increase the energy density of a rechargeable lithium battery, while reducing the volume and weight of the rechargeable lithium battery and contributing to improving rapid charging performance.