Abstract: A process of coating a substrate such as aluminum by the steps of (a) applying thereon a powder coating composition prepared by (i) blending a mix containing a poly(vinylidene fluoride) resin, a thermoplastic resin, a pigment, and a vinylidene fluoride/tetrafluoroethylene/hexafluoropropylene terpolymer, (ii) pelletizing the blend from (i), and (iii) cryogenically grinding the pellets from (ii); (b) heating the powder coating composition above its melt temperature; and (c) cooling the coated substrate.

Abstract: A novel process for coupling living polymers containing terminal (meth)acrylic units, which enables an increase in molecular weight and/or a defined multisequencing and/or a star structure with a defined number of branches, is disclosed. The disclosed process comprises the steps of: (i) anionic polymerization using an initiator system consisting of a functional initiator and a ligand to obtain a living polymer containing living terminal (meth)acrylics units; (ii) reacting it with an aldehyde compound of formula R--(CHO).sub.r in which r.gtoreq.2; and (iii) recovering the final polycondensate by means known per se.

Abstract: A process for the preparation of octadienols, comprising the hydrodimerization reaction of 1,3-butadiene with water in the presence of a transition metal in the metal form or in the form of a compound of the said metal, of a water-soluble tertiary or quaternary phosphorus-containing compound and of at least one nitrogen-containing compound selected from the group consisting of a tertiary amine and a quaternary ammonium salt of general formula (I) or (II): ##STR1## in which R.sub.p, R.sub.q and R.sub.s are identical or different and each is a methyl or ethyl group; R.sub.r is an alkyl group containing from 6 to 22 carbon atoms; X is a counter-anion selected from the group consisting ofHCO.sub.3.sup.-, CO.sub.3.sup.2-, HSO.sub.3.sup.-, SO.sub.3.sup.2-, SiO.sub.3.sup.2-,PO.sub.4.sup.3-, HPO.sub.3.sup.2-, AsO.sub.4.sup.3-, SO.sub.4.sup.2-, HSO.sub.4.sup.-, RSO.sub.3.sup.-, RCO.sub.2.sup.-, and OH.sup.-, R being an alkyl group; the said reaction being carried out in the presence of carbon dioxide.

Abstract: The present invention relates to a process for preparing acrylic polymers by means of aqueous suspension polymerization in the presence of 0.05-1% by weight, calculated on the suspension, of a stabilizer consisting of a polymer prepared by polymerization of: 60-100% by weight of a salt of a sulphoacrylamide of general formula: ##STR1## 0-40% by weight of at least an acrylic monomer.

Abstract: The invention concerns films or plates of acrylic polymers, in particular polymethylmethacrylate, rendered no drop by coating with a monomeric composition, polymerized and reticulated by ultraviolet light, consisting of:a) from 50 to 70% by weight of acrylates or methacrylates of C.sub.1 -C.sub.12 alkyls, C.sub.4 -C.sub.12 cycloalkyl, polycycloalkyl or alkylidene having from 7 to 14 C atoms;b) from 10 to 30% of acrylate or methacrylate of C.sub.2 -C.sub.6 hydroxyalkyl;c) from 10 to 30% by weight of acrylic or methacrylic acid or their salts;d) from 1 to 10% by weight of a reticulation agent consisting of a polyfunctional acrylic monomer;e) from 0.01 to 3% by weight of hydrophilic colloidal metal oxides;f) from 0 to 0.06% by weight of a U.V. polymerization initiator,being 100 the sum of the a)+b)+c)+d)+e)+f) amounts.

Abstract: Novel graft copolymers, well adopted for compatibilizing at least two normally incompatible thermoplastic polymers, include the copolymerizates of at least one monoamino-substituted polyamide oligomer and an .alpha.-monoolefin polymer or copolymer having grafted thereon a monomer which is reactive with the amine functional group of the monoamino-substituted polyamide oligomer.

Abstract: Improved stabilizer compositions are provided which impart significant long-term stabilization to halogen containing polymers such as polyvinyl chloride. The improved stabilizer compositions incorporate an alkali-metal hydrogen phosphate compound, such as anhydrous disodium hydrogen phosphate, of a predetermined surface area. The novel inorganic phosphate enables a reduction in the amount of organmetallic stabilizer, if desired, while still yielding long-term stability in the resultant polymer, or the ability to raise process temperature and reduce cycle times of molding operations.

Abstract: Imidation-modified MMA (co)polymers, characteristically having a Tg from 20.degree. to 30.degree. C. higher than the Tg of the corresponding unmodified MMA (co)polymer, are produced by reacting an amine, e.g., methylamine or cyclohexylamine, with a suspension, in a hydrophobic nonsolvent reaction medium, of beads of such MMA polymer/copolymer.

Abstract: A process is disclosed for the removal of dissolved heavy metals from aqueous solution contaminated therewith wherein at least one of said heavy metals is reacted with a water-soluble inorganic sulfide or hydrosulfide at a defined elevated temperature and a controlled pH of between about 2 to about 3.5 to thereby precipitate heavy metal sulfide, and thereafter separating the precipitate from the filtrate.

Abstract: A process for preparing chemithermomechanical pulp comprising subjecting a lignocellulosic substance from which said pulp is to be formed to the simultaneous action of a sulfite and a reducing agent that is more electronegative than the sulfite ion during a nondestructive cooking operation at a temperature of about 100.degree. C. or above under saturated steam pressure; said simultaneous action taking place at an initial pH of between 7 and 12.5.

Abstract: Malodorous sewage sludges are deodorized by treating same with an effective deodorizing amount of at least one alkyl or polyoxyalkylene ester of undecylenic acid.

Abstract: N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazides contain a light stabilizing group, a heat stabilizing group and an amic acid hydrazide functionality in the same molecule. The amic acid hydrazide functionality in the compounds enhances the photooxidative stabilizing properties of the hindered amine groups and contributes thermal and oxidative stabilizing and metal complexing properties to the compounds. The novel compounds are excellent light stabilizers for polyolefins, have low volatility and are not readily lost from polymeric systems via volatilization, migration or extraction.

Abstract: Stampable reinforced thermoplastic sheet, at least one face of which comprises, from the outside to the inside, at least three successive layers abc, in which:a is a matrix comprising a thermoplastic resin reinforced by at least two fillers of different nature and/or type chosen from fillers of the lamellar type and of the spherical or substantially spherical type,b is an interfacial binder chemically compatible with the thermoplastic resin of a and having, with respect to the latter, a lower viscosity at the temperatures at which the sheets are produced and used, andc is a reinforcement comprising a needled glass mat.Articles obtained from the sheets by stamping.

Abstract: The tetraphosphorus polysulfides of the formula P.sub.4 S.sub.x, wherein X is at least 3, especially tetraphosphorus decasulfide, P.sub.4 S.sub.10, are prepared by (a) establishing a continuously circulating closed loop of a liquid reaction mixture which comprises desired final product tetraphosphorus polysulfide, (b) continuously introducing liquid phosphorus and liquid sulfur into such continuously circulating reaction mixture and therein continuously reacting the liquid phosphorus with the liquid sulfur, and (c) continuously separating desired final product tetraphosphorus polysulfide, in gaseous state, from such continuously circulating reaction mixture.

Abstract: The present invention relates to electroactive compounds capable of undergoing a change in light absorption and refraction due to an applied electric field and a permanent change in refraction due to exposure to predetermined bands of optical radiation. The present invention also relates to electroactive compositions containing such electroactive compounds, electrooptical components comprised of such electroactive compositions and electrooptical devices comprised of such electrooptical components, as well as novel processes of making the same.

Abstract: Monomers of the formulae: ##STR1## as well as polymers and copolymers thereof wherein n=2-20; R=H, CH.sub.3 or CHOHR' where R'=straight-chain or branched alkyl, optionally substituted by hydroxyl, alkoxy or ester substituents, straight-chain, branched or cyclic alkenyl, aryl, optionally substituted by halogenated, nitro or alkoxy substituents, unsaturated heterocycle, alkylaryl and arylalkyl, R=CH.sub.3 in formula (I) in the case of monomers and homopolymers wherein n=2 and in the case of monomers wherein n=4.

Abstract: Acrylates of the formula ##STR1## in which: R is a radical chosen from alkyl radicals containing from 1 to 12 carbon atoms, cycloalkyl radicals containing from 5 to 12 carbon atoms, and aryl, arylalkyl and alkylaryl radicals,Z is a hydrocarbon radical containing at least two carbon atoms forming with the oxygen and the two adjacent carbons a ring containing from 4 to 8 members.

Abstract: Composition for the absorption of pollutants, comprising at least a norbornene polymer for 100 parts by weight of norbornene polymer: said composition comprising 5 to 250 parts by weight of at least one hydrosoluble oil aqueous emulsion breaking agent. Application: for a process of absorption of hydrosoluble oil contained in a cutting fluid.

Abstract: A catalytic system based on oxygen, vanadium, phosphorus, and molybdenum corresponding to the formula H.sub.m X.sub.n Me.sub.p PMo.sub.12-x V.sub.x O.sub.40, wherein X represents the VO.sup.2+ cation with 0<n.ltoreq.2, H represents protons with 0.ltoreq.m<4, 0.ltoreq.x.ltoreq.3, Me is a metal ion, especially an ion of a transition metal, with 0.ltoreq.p.ltoreq.t, t depending on the charge of the corresponding ion, is useful for the oxydehydrogenation of saturated carboxylic acids to .alpha.,.beta.-unsaturated acids and for oxidizing aldehydes to acids.

Abstract: Fire resistant hydraulic fluid compositions comprising (a) one or more esters of polyhaloaromatic acids per se or in combination with (b) one or more hydraulic fluids independently selected from mineral oil, poly-.alpha.-olefins, alkylated aromatics, cycloaliphatics, esters of dibasic acids, polyol esters, polyglycols, silicones, silicate esters, phosphate esters, and halogenated compositions other than (a); a method for imparting fire resistant properties to known hydraulic fluids by adding one or more esters of polyhaloaromatic acids alone or combined; and the use of the inventive compositions as fire resistant hydraulic fluids. The fire resistant compositions may, optionally, contain one or more shear-stable polymers which have been found to increase the fire resistance of the hydraulic fluid composition.