The conjugated diene-based polymer of the invention comprises an aromatic vinyl unit based on an aromatic vinyl compound and a conjugated diene unit based on a conjugated diene compound, is modified with a compound containing a heteroatom, and has an SP value of 16.80 MPa.sup.1/2 to 17.10 MPa.sup.12.

An amino silane-based compound, methods of preparing the same, and a modified conjugated diene-based polymer including an amino silane-based functional group are disclosed herein. In an embodiment, amino silane-based compound is represented by Formula 1;

##STR00001## wherein, in Formula 1, R.sup.1 and R.sup.2 are each independently a hydrocarbon group having 1 to 30 carbon atoms, or a glycol unit represented by

##STR00002##

R.sup.3 is a divalent hydrocarbon group having 1 to 30 carbon atoms, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are each independently a monovalent hydrocarbon group having 1 to 30 carbon atoms, R.sup.8 is a divalent hydrocarbon group having 1 to 10 carbon atoms, j and k are each independently 0 or 1, n is an integer selected from 1 to 10, wherein at least one of R.sup.1 or R.sup.2 is the glycol unit.

A high-conductivity sulfur-based positive electrode material for a secondary battery and a secondary battery are provided. The sulfur-based positive electrode material is formed by evenly mixing highly isotactic polyacrylonitrile as a precursor with elemental sulfur and then heating to undergo a chemical reaction. The highly isotactic polyacrylonitrile is synthesized from an acrylonitrile monomer by means of a free radical polymerization or inclusion polymerization reaction under the action of a template agent.

A method for method for preparing a functionalized polymer, the method comprising the steps of preparing an active polymerization mixture including a reactive polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst; introducing a heterocyclic nitrile compound with the reactive polymer to form a functionalized polymer within the polymerization mixture; introducing a quenching agent to the polymerization mixture including the functionalized polymer, where the ratio of water or protic hydrogen atoms in the quenching agent to the lanthanide atoms in the lanthanide-based catalyst is less than 1500 to 1.

The invention is related to a process for producing modified polyethylene having decreased melt flow rate (5 kg, 190 C.) (MFR). In particular, the present invention is directed to a process in a controlled manner for producing modified polyethylene recyclates having low MFR and low gel content directly by reactive extrusion processing.

A glass run for guiding a door glass in a frame includes: a body including an outer-cabin side wall, an inner-cabin side wall, and a connecting wall which connects the side walls and forms a channel; an outer-cabin side lip which extends toward an inside of the channel from the outer-cabin side wall and is slidably brought into contact with an outer-cabin side surface of the door glass; an inner-cabin side lip which extends toward the inside of the channel from the inner-cabin side wall and is slidably brought into contact with an inner-cabin side surface of the door glass. The outer-cabin side lip and the inner-cabin side lip include an ethylene--olefin copolymer to which a silane crosslinking is applied. The body includes a thermoplastic resin to which the silane crosslinking is not applied.

This invention relates to processes for forming hydrogen mediated saline hydride initiated anionic polymer distributions via novel polymerization conditions in which molecular hydrogen is a chain transfer agent and a Lithium Aminoalkoxide Complexed Saline Hydride (LOXSH) forms an anionic polymer chain initiating species by addition of saline hydride to an anionically polymerizable hydrocarbon monomer. This invention further relates to polystyrene compositions having greatly improved microstructures free of co-product polymer chain distributions. This invention also relates to novel hydrocarbon soluble saline hydride catalyst and reagent compositions useful in conducting the hydrogen mediated saline hydride initiated polymerizations of this invention. This invention further relates to hydrocarbon soluble lithium hydride catalysts and reagent compositions formed from dimethylaminoethanol, an alkyllithium reagent and molecular hydrogen. It also relates to the catalyst forming processes, the use of the catalyst in hydrogen mediated anionic polymerization of styrene (HMAPS) and the resulting low molecular weight polystyrene distributions of low asymmetry and high head to tail microstructure.

The present invention relates to a modified conjugated diene-based polymer, more particularly, a modified conjugated diene-based polymer prepared by continuous polymerization and accordingly, having specific polymer structure, molecular weight distribution and shape, excellent processability and narrow molecular weight distribution, a unimodal shape molecular weight distribution curve by gel permeation chromatography (GPC), and molecular weight distribution (PDI; MWD) of 1.0 to less than 1.7, and including a functional group derived from a modifier represented by Formula 1 at one terminal and a functional group derived from a modification initiator at the other terminal.

A method for producing a sheet of paper or cardboard from a fibrous suspension includes injection of a polymer P2 into a suspension of cellulosic fibers, forming of a sheet of paper or cardboard, and drying of the sheet of paper or cardboard. The polymer P2 is prepared, before the injection, from a water-soluble polymer P1 in inverse emulsion form. P1 consists of at least one nonionic monomer selected from acrylamide, methacrylamide, N,N-dimethylacrylamide, and acrylonitrile. The polymer P1 is subjected to a reaction Re to yield a polymer P2. The reaction Re includes adding the polymer P1 in inverse emulsion form to an aqueous solution M1 of an alkali hydroxide and/or an alkaline earth hydroxide, and an alkali hypohalide and/or an alkaline earth hypohalide, prior to a reaction time of 10 seconds to 5 hours.

Polyolefins incorporating hindered phenol groups covalently bound thereto are disclosed. The hindered phenols are covalently bound to the polyolefin through a residue of an alkenyl compound having a carboxylic acid and/or anhydride on the polyolefin. Such polyolefins can be prepared by reacting the following components together under heat: (a) a polyolefin; (b) an alkenyl compound having a carboxylic acid and/or anhydride; and (c) a hindered phenol reagent that can react with the carboxylic acid and/or anhydride of the alkenyl compound; to produce a polyolefin having hindered phenol groups covalently bound thereto. Reactive compounding of such components allows preparation of such polyolefins in a continuous process and in a single reaction step.