As a method for producing a copolymer with a high oil absorption rate by separating a solvent from a copolymer solution containing a copolymer in a simple manner with a less energy consumption, the present invention relates to a production method for obtaining a copolymer by separating a solvent from a copolymer solution, the method including the following Steps A to C. Step A: a step of regulating a solid component concentration (Ts) of the copolymer solution to a range of (5≦Ts≦60) in terms of a mass %, Step B: a step of heating the copolymer (P) solution obtained in the Step A such that a temperature T (° C.) is in a specified range, and Step C: a step of discharging the copolymer solution heated in the Step B from a specified nozzle at a linear velocity of 1 to 100 m/sec to separate the solvent in an inert gas stream at 0 to 200° C.

As a method for producing a copolymer with a high oil absorption rate by separating a solvent from a copolymer solution containing a copolymer in a simple manner with a less energy consumption, the present invention relates to a production method for obtaining a copolymer by separating a solvent from a copolymer solution, the method including the following Steps A to C. Step A: a step of regulating a solid component concentration (Ts) of the copolymer solution to a range of (5≦Ts≦60) in terms of a mass %, Step B: a step of heating the copolymer (P) solution obtained in the Step A such that a temperature T (° C.) is in a specified range, and Step C: a step of discharging the copolymer solution heated in the Step B from a specified nozzle at a linear velocity of 1 to 100 m/sec to separate the solvent in an inert gas stream at 0 to 200° C.

The invention relates to a composition containing at least one catalyst (C1) containing at least one atom of an element (M1) chosen from: Al, Sc, Ti, Mg, Mn, Fe, Co, Ni, Cu, Zn, Zr, Sn, Hf, Pb, Si, Sb and In; a catalyst (C2) comprising at least one atom of an element (M2) chosen from alkali metals and alkaline-earth metals; a thermosetting resin and/or a hardener for a thermosetting resin. The invention also relates to the use of this composition for rendering a resin which is in the thermoset state hot-deformable and nevertheless free of any residual stress after the deformation thereof; such a resin will advantageously retain its shape even if it is subsequently subjected to high temperatures. The invention relates, moreover, to kits for preparing the composition, to a thermoset-resin-based object obtained from a composition of the invention, to a process for manufacturing objects, to a process for hot-deformation of objects and to various possible uses of the compositions and objects of the invention.

This invention relates to processes for forming hydrogen mediated saline hydride initiated anionic polystyrene distributions via novel polymerization conditions. This invention also relates to novel hydrocarbon soluble super active saline hydride catalyst and reagent compositions useful in conducting the hydrogen mediated saline hydride initiated polymerizations of this invention. This invention also relates to novel low molecular weight polystyrene polymer composition formed exclusively from styrene and molecular hydrogen as the monomers.

The present invention relates to the use of N,N′,N″-substituted hexahydro-1,3,5-triazine in the anionic polymerization of conjugated diene monomer and vinylaromatic monomer. Use of this polar additive produces copolymers having both high vinylaromatic and low vinyl contents, while the blockiness of the vinylaromatic unit can be tailored.

The present invention relates to the use of N,N′,N″-substituted hexahydro-1,3,5-triazine in the anionic polymerization of conjugated diene monomer and vinylaromatic monomer. Use of this polar additive produces copolymers having both high vinylaromatic and low vinyl contents, while the blockiness of the vinylaromatic unit can be tailored.

An ethylenically unsaturated polymer includes at a terminus the radical of an allylic compound that includes a functional group free of active hydrogen atoms that is bonded to the allylic C atom through a S, P, Si or Sn atom and a vinyl aromatic compound. The polymer can be used as a component of a variety of elastomeric compounds used in the production of vulcanizates.

An ethylenically unsaturated polymer includes at a terminus the radical of an allylic compound that includes a functional group free of active hydrogen atoms that is bonded to the allylic C atom through a S, P, Si or Sn atom and a vinyl aromatic compound. The polymer can be used as a component of a variety of elastomeric compounds used in the production of vulcanizates.

This invention relates to processes for forming hydrogen mediated saline hydride initiated anionic polystyrene distributions via novel polymerization conditions. This invention also relates to novel hydrocarbon soluble super active saline hydride catalyst and reagent compositions useful in conducting the hydrogen mediated saline hydride initiated polymerizations of this invention. This invention also relates to novel low molecular weight polystyrene polymer composition formed exclusively from styrene and molecular hydrogen as the monomers.

The invention relates to a method of polymerizing at least one monomer comprising a vinylidene fluoride monomer, the method comprising putting in contact the at least one monomer with a polymerization initiator -and an oxidizing agent, the polymerization initiator having the formula (I):

##STR00001##

wherein R.sub.f is a fluoroalkyl group comprising from 1 to 3 carbon atoms; and M.sup.x+ is chosen from a monovalent cation, or a divalent cation, or a trivalent cation, or a tetravalent cation.