Abstract: A method of inerting pipelines, or buried tanks or wellbores consisting of preparing a composition including at least one superabsorbent (co)polymer partially or fully swollen in the presence of water, then injecting the composition directly into the pipelines or buried tank or well.

Abstract: A method of inerting pipelines, or buried tanks or wellbores consisting of preparing a composition including at least one superabsorbent (co)polymer partially or fully swollen in the presence of water, then injecting the composition directly into the pipelines or buried tank or well.

Abstract: The present invention relates to compositions including organic and/or inorganic fillers and at least one comb-structured bead-from polymer. The bead-form polymer has: an apparent specific gravity higher than 0.5 and preferably higher than 0.7, a spherical shape and physical properties such as greater flowability, a better particle size distribution whereby a high fine particle content is averted, and a lower specific surface area whereby the moisture regain rate is lowered and caking is reduced as a result of which an overall improvement in the use conditions is achieved when the polymer is used as a plasticizer, a superplasticizer or a dispersing agent, in comparison with the conditions observed during the use of the same materials marketed in solid form (e.g. as a fine powder prepared by spray drying), particularly by virtue of the very fast availability of the polymer in the medium.

Abstract: The invention relates to a cosmetic, dermatological, pharmaceutical, veterinary, or detergent composition comprising at least one conditioning cationic copolymer of diallyl dimethyl ammonium chloride (also called DADMAC) and acrylamide, obtained by polymerisation in inverse suspension. The polymer has a ratio (effective ionic character/theoretical ionic character) greater than 50% and a viscosity greater than 1000 cP (mpa·s) at a concentration of 8% at 25° C. and, in a surprising manne conditioning characteristics significantly better than those observed for the same product as available in other physical forms. The above is of use as a conditioning and film-forming agent for cationic copolymers made from DADMAC and acrylamide in the form of beads (also called pearls), produced by the technique of inverse suspension polymerisation.

Abstract: This invention relates to a process for preparation of cationic polymers of high molecular weight based on salts of diallyl dialkyl ammonium, in the form of beads, by the method of reverse suspension polymerization.