The invention relates to a hydrocarbon polymer comprising two exo-vinylene cyclic carbonate terminal groups, of formula (1), production method thereof and use of same for the production of coating, mastic and adhesive compositions.

The present disclosure provides processes to convert heavy hydrocarbons to light distillates. The present disclosure further provides compositions including light distillates. In an embodiment, a process for upgrading a hydrocarbon feed includes dehydrogenating a C.sub.3-C.sub.50 cyclic alkane and an C.sub.2-C.sub.50 acyclic alkane in the presence of a dehydrogenation catalyst to form a C.sub.3-C.sub.50 cyclic olefin and a C.sub.2-C.sub.50 acyclic olefin. The process includes reacting the C.sub.3-C.sub.50 cyclic olefin and the C.sub.2-C.sub.50 acyclic olefin in the presence of a group 6 or group 8 transition metal catalysts to form a C.sub.5-C.sub.200 olefin. The process further includes hydrogenating the C.sub.5-C.sub.200 olefin in the presence of a hydrogenation catalyst to form a C.sub.5-C.sub.200 hydrogenated product. Processes of the present disclosure may further include hydroisomerizing the C.sub.5-C.sub.200 hydrogenated product in the presence of a hydroisomerization catalyst to form a C.sub.5-C.sub.200 hydroisomerized product.

The present invention relates to a process for producing cycloalkenamer-containing compositions and to such cycloalkenamer-containing compositions. The invention further relates to the use of these cycloalkenamer-containing compositions in the field of packaging materials, especially for food and drink.

Polymer of formula (1) bearing an alkoxysilane end group: ##STR00001## in which: is a double or single bond; each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is H, a halo, an alkoxycarbonyl or an alkyl, m and p are each from 0 to 5, each of R and R is an alkyl, Z is an alkylene, optionally interrupted with COO, q is 0 or 1, r is 0, 1 or 2, and n is such that the number-average molar mass of the polymer (1) is from 400 to 50 000 g/mol, and the polydispersity index of the polymer (1) is from 1.0 to 2.0. Preparation by ring-opening metathesis polymerization. Use as an adhesion promoter or a reactive plasticizer.

A process for producing cycloalkenamer-containing compositions involves converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture. The product mixture is worked up to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO.sub.2. The extraction involves at least two stages: an extraction with liquid CO.sub.2 under the supercritical conditions, and then an extraction with supercritical CO.sub.2. Such cycloalkenamer-containing compositions can be used, for example, in the field of packaging materials, especially for food and drink.

A superconducting coil device (10) includes: a coil case (20) housing a superconducting coil (30); a superconducting coil (30) housed in the coil case (20); and a resin part (50) formed of a polymer (51) filled in a gap between an inner wall of the coil case (20) and the superconducting coil (30). The resin part (50) is formed of a polymer (51) obtained by polymerizing a polymerizable composition containing a first monomer having a norbornene ring structure.

A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl-cis-cyclooctene, and optionally cis-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefin pre-polymer is provided.

Gem-dialkyl cyclooctene monomers, telechelic prepolymers prepared by ring opening metathesis polymerization of the monomers, and polymers such as polyurethanes comprising the reaction product of the prepolymer and a co-monomer such as a polyisocyanate.

Hydrocarbon-based polymer of formula (1) bearing alkoxysilane end groups:

##STR00001## in which: is a double or single bond; each of R.sub.2, R.sub.3, R.sub.4 and R.sub.5 is H, a halo, an alkoxycarbonyl or an alkyl, m and p are each from 0 to 5, each of R and R is an alkyl, Z is an alkylene, optionally interrupted with COO, q is 0 or 1, r is 0, 1 or 2, and n is an integer such that the number-average molar mass Mn of the polymer is from 400 to 50 000 g/mol, and its polydispersity index (PDI) is from 1.0 to 2.0.

Preparation by ring-opening metathesis polymerization for 2 hours to 24 hours.

Adhesive composition comprising polymer (1) and crosslinking catalyst. Bonding by assembly of two substrates using this adhesive composition.

The present invention relates to a process for producing cycloalkenamer-containing compositions, comprising the steps of: a) converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and b) working up the product mixture to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO.sub.2, whereby the polyalkenamers are polymers of cycloalkenes which comprise at least five cycloalkane monomer units, wherein the extraction comprises at least two stages: b0) an extraction with liquid CO.sub.2, then b1) an extraction with supercritical CO.sub.2, then b2) an extraction with gaseous CO.sub.2, then b0) an extraction with liquid CO.sub.2, then and then b3) an extraction with supercritical CO.sub.2.