A quantum dot composite material, and an optical film and a backlight module using the same are provided. The quantum dot composite material includes a curable polymer and a plurality of quantum dots dispersed in the curable polymer. Based on the total weight of the curable polymer being 100%, the curable polymer includes 15 wt % to 40 wt % of monofunctional group acrylic monomer, 15 wt % to 40 wt % of multifunctional group acrylic monomer, 5 wt % to 35 wt % of mercaptan functional group monomer, 1 wt % to 5 wt % of photoinitiator, 10 wt % to 30 wt % of acrylic oligomer, and 5 wt % to 25 wt % of scattering particles.

Embodiments in accordance with the present invention encompass compositions comprising a long shelf stabilized organopalladium compound of formula (I) as described herein. The composition further contains a photoacid generator, a photosensitizer and one or more olefinic monomers as described herein. The shelf life of the compositions can further be extended by employing a stabilizer, such as for example, a hindered amine. The composition undergoes vinyl addition polymerization when it is exposed to a suitable actinic radiation to form a substantially transparent film or a three dimensional object. More specifically, the compositions of this invention are stable at room temperature for several days to several months and can also be stored at higher temperatures from about 40° C. to 60° C. for several days and undergo mass polymerization only when subjected to suitable actinic radiation. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films and/or three dimensional objects having various opto-electronic properties. Accordingly, compositions of this invention are useful in various applications, including as coatings, encapsulants, fillers, leveling agents, sealants, adhesives, among others.

A self-healing polymer network containing a physical crosslinking agent, a composition therefor, and an optical element comprising the same is provided. The self-healing polymer network comprises a polymer derived from monomers including self-healing monomers each having a first polymerizable functional group and at least one of urethane, urea, or amide group chemically linked to the first polymerizable functional group, wherein the polymer has a backbone formed by polymerizing the first polymerizable functional groups of the self-healing monomers and a plurality of side groups each having at least one of urethane, urea, or amide group chemically linked to the backbone. In addition, the self-healing polymer network comprises a physical crosslinking agent which is an alcohol mixture having at least two of monool, diol, triol, and tetraol or the higher polyol and crosslinking the polymer by physically crosslinking the urethane, urea, or amide group of the side groups.

A self-healing polymer network containing a physical crosslinking agent, a composition therefor, and an optical element comprising the same is provided. The self-healing polymer network comprises a polymer derived from monomers including self-healing monomers each having a first polymerizable functional group and at least one of urethane, urea, or amide group chemically linked to the first polymerizable functional group, wherein the polymer has a backbone formed by polymerizing the first polymerizable functional groups of the self-healing monomers and a plurality of side groups each having at least one of urethane, urea, or amide group chemically linked to the backbone. In addition, the self-healing polymer network comprises a physical crosslinking agent which is an alcohol mixture having at least two of monool, diol, triol, and tetraol or the higher polyol and crosslinking the polymer by physically crosslinking the urethane, urea, or amide group of the side groups.

Provided are: a radical polymerization initiator which has excellent sensitivity and solubility in water; a composition containing the same; a cured product of the composition; a method of producing the cured product; and a compound. The radical polymerization initiator contains a compound represented by Formula (A) below (wherein Z.sup.1 represents a direct bond or the like; Z.sup.2 represents —C(R.sup.102).sub.2— or the like; R.sup.1 to R.sup.8 each represent a hydrogen atom or the like, or a group containing a salt-forming group, which is represented by Formula (B1) below (wherein L.sub.1 represents a direct bond or the like, B represents an acidic group salt or the like, b represents 1 to 10, and the asterisk (*) represents a binding site), at least one of R.sup.1 to R.sup.8 is the group containing a salt-forming group; R.sup.101 and the like each represent a hydrogen atom or the like; one or more hydrogen atoms in the alkyl group and the like used as R.sup.1 to R.sup.8 and the like are optionally substituted with an ethylenically unsaturated group or the like; one or more methylene groups in R.sup.1 to R.sup.8 and the like are optionally substituted with a double bond or the like; adjacent groups such as R.sup.1 and R.sup.2 are optionally bound together to, form a ring and optionally form a fused ring with a benzene ring in Formula (A); and represents a hydrogen atom or the like). ##STR00001##

Provided are: a radical polymerization initiator which has excellent sensitivity and solubility in water; a composition containing the same; a cured product of the composition; a method of producing the cured product; and a compound. The radical polymerization initiator contains a compound represented by Formula (A) below (wherein Z.sup.1 represents a direct bond or the like; Z.sup.2 represents —C(R.sup.102).sub.2— or the like; R.sup.1 to R.sup.8 each represent a hydrogen atom or the like, or a group containing a salt-forming group, which is represented by Formula (B1) below (wherein L.sub.1 represents a direct bond or the like, B represents an acidic group salt or the like, b represents 1 to 10, and the asterisk (*) represents a binding site), at least one of R.sup.1 to R.sup.8 is the group containing a salt-forming group; R.sup.101 and the like each represent a hydrogen atom or the like; one or more hydrogen atoms in the alkyl group and the like used as R.sup.1 to R.sup.8 and the like are optionally substituted with an ethylenically unsaturated group or the like; one or more methylene groups in R.sup.1 to R.sup.8 and the like are optionally substituted with a double bond or the like; adjacent groups such as R.sup.1 and R.sup.2 are optionally bound together to, form a ring and optionally form a fused ring with a benzene ring in Formula (A); and represents a hydrogen atom or the like). ##STR00001##

The present invention relates to a process for impregnating a fibrous substrate consisting of long fibers by a liquid (meth)acrylic mixture mainly containing methacrylic and/or acrylic components. The invention also relates to such a (meth)acrylic mixture and its composition, said (meth)acrylic mixture comprising a (meth)acrylic syrup and an aqueous dispersion of radical initiator. The invention also relates to a process for manufacturing mechanical parts or structured elements or articles made of composite material by impregnating the fibrous substrate with the (meth)acrylic mixture then polymerizing said (meth)acrylic mixture, and also such parts obtained according to said manufacturing process and used in varied fields such as the automotive industry, aeronautics, or else construction.

A process for treatment of nanoparticles of mineral filler for obtaining 5 processed nanoparticles for use in polymerization in the presence of nanopartciles which includes the steps of (a) drying a mineral filler with an inert gas for remove catalyst poisons; (b) mixing the mineral filler dried obtained in step (a) with a swelling agent in a liquid state or near a critical state or in the supercritical state; (c) subjecting the swelling agent of the 10 mixture obtained in step (b) to an endoenthalpic or isoentalphic phase change by altering the conditions of the temperature and/or pressure; (d) subjecting the nanoparticles of the mixture obtained in step (c) to contact of scavenging agent to react with catalyst poisons; then the mixture obtained in step (d) can be dried in a step (e) with an inert gas to remove sub-products 15 from scavenging agent and catalyst poisons to obtain the treated nanoparticles.

A process for treatment of nanoparticles of mineral filler for obtaining 5 processed nanoparticles for use in polymerization in the presence of nanopartciles which includes the steps of (a) drying a mineral filler with an inert gas for remove catalyst poisons; (b) mixing the mineral filler dried obtained in step (a) with a swelling agent in a liquid state or near a critical state or in the supercritical state; (c) subjecting the swelling agent of the 10 mixture obtained in step (b) to an endoenthalpic or isoentalphic phase change by altering the conditions of the temperature and/or pressure; (d) subjecting the nanoparticles of the mixture obtained in step (c) to contact of scavenging agent to react with catalyst poisons; then the mixture obtained in step (d) can be dried in a step (e) with an inert gas to remove sub-products 15 from scavenging agent and catalyst poisons to obtain the treated nanoparticles.

The present invention provides a polymerizable composition containing a specific polymerizable compound and a fluorosurfactant having a specific polyoxyalkylene skeleton and having specific molecular weight. The invention also provides an optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable composition of the present invention. The present invention is useful because, when an optically anisotropic body is produced by photo-polymerization of the polymerizable composition, three features including the leveling properties of the surface of the optically anisotropic body, offset onto the substrate, and liquid crystal alignment can be improved simultaneously.