A liquid crystal panel according to one embodiment includes a first substrate, a second substrate opposed to the first substrate, a sealing member bonding the first substrate and the second substrate, and a liquid crystal layer sealed between the first substrate and the second substrate by the sealing member. The sealing member includes a ten-hour half-life temperature of 95° C. or lower and an acrylic resin. The liquid crystal layer includes a macromolecular compound.

The present invention provides a preparing method of a polymer which is low-toxic, environmental-friendly, highly controllable, and low cost to obtain a polymer with high molecular weight. The preparing method comprises conducting a controlled radical polymerization process of monomer (Y). In the controlled radical polymerization process, organic compound (A) which has the formula (I) and radical initiator (B) are existing in a mole ratio (B/A) ranged from 0.5 to 25,

##STR00001## wherein R.sup.1 is a hydrogen atom, alkyl group, aryl group, or hydroxyl group, the alkyl group can be alkyl having substituents or alkyl substituent, and the aryl group can be aryl having substituents or aryl substituent.

An object of the present invention is to provide a colored curable resin composition for forming an optical filter in which the occurrence of foreign matter is reduced. The present invention relates to a colored curable resin composition containing a colorant, a resin, a polymerizable compound, and a polymerization initiator, wherein the colorant is a colorant containing a compound represented by formula (I) or formula (II).

##STR00001##

This invention relates to a method for preparing a structured water-soluble polymer having a weight average molecular weight greater than 1 million Daltons and a Huggins Coefficient K.sub.H greater than 0.4, the method comprising the following successive steps: a) Preparing a polymer, in the form of a gel, by free-radical polymerization in aqueous solution at an initiation temperature between −20° C. and +50° C. of at least one water-soluble monounsaturated ethylenic monomer, the total weight concentration of monomer(s) in relation to the polymerization charge being between 10 and 60%; b) Granulating the resulting polymer gel; c) Drying the polymer gel to obtain a polymer in powder form; d) Grinding and sifting the powder; at least 10% by weight of water-soluble polymer, based on the total weight of the water-soluble monounsaturated ethylenic monomer or monounsaturated ethylenic monomers used in step a), being added during the polymerization step a) and optionally during the granulation step b), the water-soluble polymer being structured and added as a water-in-oil inverse emulsion or dispersion in oil.

This invention relates to a method for preparing a structured water-soluble polymer having a weight average molecular weight greater than 1 million Daltons and a Huggins Coefficient K.sub.H greater than 0.4, the method comprising the following successive steps: a) Preparing a polymer, in the form of a gel, by free-radical polymerization in aqueous solution at an initiation temperature between −20° C. and +50° C. of at least one water-soluble monounsaturated ethylenic monomer, the total weight concentration of monomer(s) in relation to the polymerization charge being between 10 and 60%; b) Granulating the resulting polymer gel; c) Drying the polymer gel to obtain a polymer in powder form; d) Grinding and sifting the powder; at least 10% by weight of water-soluble polymer, based on the total weight of the water-soluble monounsaturated ethylenic monomer or monounsaturated ethylenic monomers used in step a), being added during the polymerization step a) and optionally during the granulation step b), the water-soluble polymer being structured and added as a water-in-oil inverse emulsion or dispersion in oil.

A POSS modified polyacrylate fluorine-free waterproofing agent includes following components: 1-10 wt % of a functionalized POSS monomer, 2-20 wt % of methyl methacrylate, 3-26 wt % of butyl acrylate, 1-10 wt % of a long-chain acrylate monomer, 0.5-3.5 wt % of an initiator, 0.5-4 wt % of a reactive cationic emulsifier, and 50-80 wt % of deionized water. A method of preparing a POSS modified polyacrylate fluorine-free waterproofing agent is also disclosed.

A method for producing an iodine-containing compound includes reacting a halogen-containing organic iodine compound and a compound containing a reactive carbon-carbon double bond in the presence of a compound of Formula (21) or Formula (22). Each of R.sup.21, R.sup.23 and R.sup.24 represents a hydrogen atom, an iodine atom, or an organic group having from 1 to 20 carbon atoms; R.sup.22 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a boron-containing group; R.sup.25 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a silicon-containing group; and each of A.sup.1 and A.sup.2 represents a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom.

##STR00001##

A method for producing an iodine-containing compound includes reacting a halogen-containing organic iodine compound and a compound containing a reactive carbon-carbon double bond in the presence of a compound of Formula (21) or Formula (22). Each of R.sup.21, R.sup.23 and R.sup.24 represents a hydrogen atom, an iodine atom, or an organic group having from 1 to 20 carbon atoms; R.sup.22 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a boron-containing group; R.sup.25 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a silicon-containing group; and each of A.sup.1 and A.sup.2 represents a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom.

##STR00001##

The present disclosure relates to the technical field of preparation of syndiotactic 1,2-polybutadiene (s-PB), in particular to a catalytic system and use thereof, and a preparation method of s-PB. In the present disclosure, the catalytic system includes an iron-containing organic compound, an azodicyano compound, an organoaluminum compound, and a free radical scavenger; where an iron element in the iron-containing organic compound, the azodicyano compound, the organoaluminum compound, and the free radical scavenger have a molar ratio of 1:(0.5-10):(5-100):(1-1000); and the free radical scavenger is selected from the group consisting of a sterically hindered phenol, a sterically hindered amine, and a phosphorus-containing antioxidant. The catalytic system can prepare the s-PB with a high activity at a high temperature, and the s-PB has a melting point of 60° C. to 130° C. with an extremely low gel content or even no gelation.

The present disclosure relates to the technical field of preparation of syndiotactic 1,2-polybutadiene (s-PB), in particular to a catalytic system and use thereof, and a preparation method of s-PB. In the present disclosure, the catalytic system includes an iron-containing organic compound, an azodicyano compound, an organoaluminum compound, and a free radical scavenger; where an iron element in the iron-containing organic compound, the azodicyano compound, the organoaluminum compound, and the free radical scavenger have a molar ratio of 1:(0.5-10):(5-100):(1-1000); and the free radical scavenger is selected from the group consisting of a sterically hindered phenol, a sterically hindered amine, and a phosphorus-containing antioxidant. The catalytic system can prepare the s-PB with a high activity at a high temperature, and the s-PB has a melting point of 60° C. to 130° C. with an extremely low gel content or even no gelation.