Abstract: The present disclosure relates to a process for controlling particle size distribution of a Ziegler-Natta catalyst composition. In order to control the particle size distribution, magnesium metal is reacted with a mixture comprising a first alcohol and a second alcohol to obtain a slurry which includes a mixture of magnesium alkoxides and unreacted alcohol. The unreacted alcohol is separated from the slurry to obtain the mixture of magnesium alkoxides having reduced methoxy content less than 2 wt %. The mixture of magnesium alkoxides is chlorinated to obtain a Ziegler-Natta pro-catalyst. The Ziegler-Natta pro-catalyst is mixed with a co-catalyst to obtain a Ziegler-Natta catalyst composition with controlled particle size distribution in the range of 5 ?m to 15 ?m.

Abstract: Compression blow formed articles having improved barrier properties and methods of making the same are provided herein.

Abstract: A chain transfer agent composition comprises at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations thereof. The chain transfer agent composition can be a component of an emulsion polymerization mixture and can be used in a process for emulsion polymerization for the production of polymers, for example, via free-radical polymerization.

Abstract: This disclosure relates to a composition comprising (a) a blend; (b) one or more fillers comprising at least one of carbon black, ferrite magnet powder, calcium carbonate, alumina trihydrate, magnesium hydroxide, talc, titanium dioxide, fibers, marble dust, cement dust, clay, feldspar, silica or glass, fumed silica, alumina, magnesium oxide, antimony oxide, zinc oxide, barium sulfate, calcium sulfate, aluminum silicate, calcium silicate, titanium dioxide, titanates, clay, nanoclay, organo-modified clay or nanoclay, glass microspheres, chalk, or any combination thereof. The cross-linking agents comprise organic peroxide, and the coagents comprise at least one of di- and tri-allyl cyanurates and isocyanurates, liquid and metallic multifunctional acrylates and methacrylates, zinc-based dimethacrylates and diacrylates, and functionalized polybutadiene resins and optionally (c) a cross-linking pack including cross-linking agents and coagents.

Abstract: Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a different hydrogen to ethylene ratio. At least one catalyst generates a higher molecular weight polymer and another catalyst generates a lower molecular weight polymer. A molecular weight for each polymer is measured. The relationship between the molecular weight of the polymers generated by each of the catalysts and the ratio of hydrogen to ethylene is determined. A family of bPDI curves for polymers that would be made using a number of ratios of a blend of the at least two catalysts for each of a number of ratios of hydrogen to ethylene.

Abstract: The invention provides a process to form a polymer composition comprising at least one ethylene/?-olefin/non-conjugated polyene interpolymer, and wherein the polymer composition has at least the following properties: a) a Mw/V0.1 ratio greater than, or equal to, 1.80 (g/mol)/(Pa·s); said process comprising polymerizing one or more mixture(s) comprising ethylene, an ?-olefin and a non-conjugated polyene in the presence of a catalyst system comprising a metal-ligand complex of Formula (I), as described herein.

Abstract: The present application is directed to a crosslinkable copolymer comprising styrene and 4-vinyl benzocyclobutene monomers and at least one alkoxysilane group, a method for generating an ultrathin copolymer film, which contains at least one crosslinked copolymer as defined herein, on a silicon-containing substrate, a composition or film comprising at least one copolymer as defined herein, as well as the use of this copolymer or composition containing it for electrical insulation and/or bonding of silicon-containing substrates.

Abstract: Metal-containing polymeric materials and metal complex-containing polymeric materials are provided. The polymeric materials are divinylbenzene/maleic anhydride polymers, partially hydrolyzed divinylbenzene/maleic anhydride polymers, or fully hydrolyzed divinylbenzene/maleic anhydride polymers. Additionally, methods of making the metal-containing polymeric materials, methods of using the metal-containing polymeric materials to capture volatile, basic, nitrogen-containing compounds, and methods of using a zinc-containing polymeric material to detect the presence of water vapor are provided.

Abstract: Provided is a curable composition in which the solubility in a solvent (in particular, water) is high and in which properties of a cured film obtained using the curable composition stored for a predetermined time are superior. The curable composition includes: a compound A represented by Formula (A) and at least one compound X selected from the group consisting of compounds represented by Formulae (X1) to (X4), in which a content of the compound X is 0.01 to 2.0 mass % with respect to a total mass of the compound A and the compound X; or a compound B represented by Formula (B) and a compound Y represented by Formula (Y), in which a content of the compound Y is 0.01 to 2.0 mass % with respect to a total mass of the compound B and the compound Y.

Abstract: A process for synthesizing a copolymer bearing imidazole pendant groups is provided. The process comprises the radical copolymerization of a monomer mixture comprising a terminal olefin and a functional monomer bearing a (meth)acryloyl group and an imidazole group.

Abstract: An elastomeric composition and method incorporating a hydrocarbon polymer modifier with improved permanence. The composition comprises elastomer, filler and silane-functionalized hydrocarbon polymer modifier (Si-HPM) made in a pre-reaction adapted to couple the Si-HPM to the elastomer, filler or both, wherein the Si-HPM comprises an interpolymer of monomers chosen from piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof.

Abstract: In order to provide a curing agent (alkoxylated resole-type phenolic resin) with which a coating film having high hot-water resistance, high workability, and high adhesion to metals may be formed without limiting the main agent to be a bisphenol-A-type epoxy resin, the present invention provides a method for producing an alkoxylated resole-type phenolic resin. The method includes reacting a phenol (a1) including meta-cresol with an aldehyde (a2) in the presence of a basic compound to prepare a resole-type phenolic resin (A); and reacting the resole-type phenolic resin (A) with an alcohol (B) in the presence of an acidic compound having an acid dissociation constant (pKa) of 0 or less.

Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to closed-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a non-amine catalyst used alone or in combination with an amine catalyst.

Abstract: The present invention relates to a polyol premix composition for rigid polyurethane foams comprising a hydrohaloolefin as foaming agent, an amine catalyst and an aliphatic dicarboxylic acid. The polyol premix composition has a high initial reaction rate when it is reacted with isocyanate and shows smaller deterioration of reactivity over time.

Abstract: A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

Abstract: The present invention is a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a melting point of 280° C. or higher and a syndiotacticity of higher than 90%, and a syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, and a formed article, and a method for producing the formed article. One aspect of the invention provides a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a high melting point of 280° C. or higher, and a syndiotacticity of higher than 90%.

Abstract: The present invention relates to thiadiazolopyridine polymers, their synthesis and their use. The present invention further relates to organic electronic devices comprising such thiadiazolopyridine polymers.

Abstract: Provided herein are methods that comprise providing polymer chains comprising a plurality of reactive groups onto the surface of beads and covalent attachment of functionalized biomolecules, such as primers.

Abstract: This invention relates to compositions and methods for increasing the crystallization rate and/or processing speed of polyhydroxyalkanoate (PHA) polymers. PHA polymers are notorious for slow crystallization rates, reducing the practicality for using PHA for consumer products. Compounds that have similar crystal structures to PHA and have a melting point higher than that of the PHA, such as pentaerythritol, as well as compounds that undergo a crystal structure change at or below the melting point of the polymer, such as sulfur or selenium, act as good crystal nucleators for PHA.

Abstract: Disclosed are aliphatic polyester resins containing specific molar quantities of 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and solvent borne, thermosetting monocoating compositions prepared therefrom. The aliphatic polyesters exhibit good hardness and flexibility when formulated into thermosetting coatings compositions.

Abstract: [Problem] Provided is a crystalline wholly aromatic polyester which is a polycondensate of an aromatic dicarboxylic acid and an aromatic diol and method for manufacture thereof.

Abstract: Controlled biodegradable smart responsive scaffold (SRS) materials enhance attachment and viability of cells, i.e. actively guiding their expansion, proliferation and in some cases differentiation, while increasing their biomechanical functionality is an important key issue for tissue regeneration. Chemically build-in functionality in these biodegradable SRS materials is achieved by varying structural functionalization with biocompatible liquid crystal motifs and general polymer composition allowing for regulation and alteration of tensile strength, surface ordering, bioadhesion and biodegradability, bulk liquid crystal phase behavior, porosity, and cell response to external stimuli. Liquid crystal modification of such polymeric scaffolds is an ideal tool to induce macroscopic ordering events through external stimuli.

Abstract: The invention relates to aromatic polycarbonates which comprise dioxydiarylcycloalkane structural units, and which have improved optical and thermal properties. It also relates to an improved process to produce the said polycarbonates from dihydroxydiphenylcycloalkanes, and also to mixtures of these polycarbonates with polymers, with fillers, with dyes and with conventional additives.

Abstract: The invention relates to polycarbonates with extremely low residual levels of volatile constituents and thermal degradation products, and also improved optical properties, especially Yellowness Index (YI) and good thermal stability, from solvent-containing polymer melts. The invention further relates to an apparatus and a process for preparing these polycarbonates with the aid of a devolatilizing extruder with at least three devolatilizing zones, and zones for introducing entraining agent into dispersion are present upstream of at least three devolatilizing zones.

Abstract: A process for producing a perfluoropolyether acyl fluoride which includes reducing a peroxyperfluoropolyether by using a formyl group-containing compound in the presence of a transition metal catalyst.

Abstract: Disclosed herein are inkjet ink compositions comprising a polymer comprising the repeat units (A), (B), and (C), wherein: (A) is selected from —N+(R1)(R2)— and —N(R1)—; (B) is selected from C1-C10 alkylene; C3-C20 cycloalkylene; C3-C20 heterocycloalkylene; arylene; heteroarylene; C2-C20 ether; C2-C20 thioether; C2-C20 ester; C2-C20 acetal; C2-C20 amide; bisphenols; and oligomer and polymer moieties selected from polyether, polyester, polyamines, polycarbonate, polyacetal, polythioether, polyester amide, polyurethane, polyacrylate, polyolefin, and polyalkylsiloxane, and (C) comprises at least one group selected from: (i) —C(R3) (R4)—C(R5)(OH)—(C(R6)(R7))m-, (ii) —C(R3)(R4)—C(R5)(H)—C(O)—, and (iii) C(R3)(R4) C(R5)(H) S(O)(O); and (A) is bonded to the —C(R3)(R4)— group of (C), and (B) is bonded to (C).

Abstract: The invention provides a radically polymerizable compound wherein an acid group is joined via a spacer group to a polyethyleneimine group. The polyethyleneimine group has at least one radically polymerizable group in the side chain and/or terminally. The invention relates further to a process for preparing such compounds by cationic polymerization of oxazolines, to the use of such compounds as constituents of a dental material, and to a dental material comprising the compounds of the invention.

Abstract: A polyamide acid composition and a polyimide composition are obtained from a tetracarboxylic acid compound containing an aromatic tetracarboxylic acid compound having a naphthalene skeleton and a diamine compound containing an aromatic diamine compound having a biphenyl skeleton.

Abstract: Sulfur copolymers having high sulfur content for use as raw materials in 3D printing. The sulfur copolymers are prepared by melting and copolymerizing one or more comonomers with cyclic selenium sulfide, elemental sulfur, elemental selenium, or a combination thereof. Optical substrates, such as films and lenses, are constructed from the sulfur copolymer via 3D printing and are substantially transparent in the visible and infrared spectrum. The optical substrates can have refractive indices of about 1.75-2.6 at a wavelength in a range of about 500 nm to about 8 ?m.

Abstract: The present disclosure relates to a polymerization process wherein the emulsifier is introduced in an initial batch as well as during a continuous feed to provide improved mechanical stability of the generated latex. Improved soap coverage can also be achieved during the polymerization process.

Abstract: A method for producing a wet rubber comprises a step (I) of dispersing the filler into the dispersing solvent, and adding, at the time of the dispersing, at least one portion of the rubber latex solution to the dispersing solvent to produce a slurry solution containing the filler to which particles of the rubber latex adhere, a step (II) of mixing the slurry solution containing the filler, to which the rubber latex particles adhere, with the rest of the rubber latex solution to produce a rubber latex solution containing the filler, to which the rubber latex particles adhere, and a step (III) of solidifying and drying the rubber latex solution containing the filler. About the filler, the ratio of the nitrogen adsorption specific surface area (N2SA) thereof to the iodine adsorption amount (IA) thereof ((N2SA)/(IA)) is 1.00 or more.

Abstract: Provided is a method for producing a tire member that can give a vulcanized rubber high in fatigue resistance. The method includes: (i) mixing carbon black, a dispersing solvent and a rubber latex solution with each other to produce a rubber latex solution including the carbon black; (ii) solidifying the resultant rubber latex solution including the carbon black to produce a rubber solidified product including the carbon black; (iii) adding, to the resultant rubber solidified product including the carbon black, a compound represented by the following formula (I): and dispersing the compound represented by the formula (I) into the rubber solidified product including the carbon black, this product containing water, while dehydrating the rubber solidified product including the carbon black to produce a wet rubber masterbatch; and (iv) adding, to the resultant wet rubber masterbatch, silica and a silane coupling agent, and dry-mixing these substances with each other.

Abstract: Provided is a resin additive masterbatch in which a low-melting-point resin additive is masterbatched and blocking is suppressed such that blocking does not occur even when the masterbatch is placed in an environment having large temperature fluctuations. The resin additive masterbatch contains, with respect to 100 parts by mass of (A) a polyolefin resin: 60 to 150 parts by mass of (B) a resin additive having a melting point of 100° C. or lower; 0.01 to 3 parts by mass of (C) an organic acid metal salt; and 0.1 to 5 parts by mass of (D) a fatty acid metal salt.

Abstract: A method for producing a tire member yielded using at least a filler, a dispersing solvent and a rubber latex solution as raw materials comprises at least a step (iii) of dehydrating the rubber solidified product containing the filler to produce the tire member. The step (iii) is a step of adding, to the rubber solidified product containing the filler, a peptizer and a compound represented by the following formula (I): and dispersing the compound represented by the formula (I) in the rubber solidified product containing the filler, this product containing water, while dehydrating the rubber solidified product containing the filler.

Abstract: Provided is a process for producing aqueous-liquid absorbing resin particles which, even after transportation or a diaper production step, are capable of combining the property of enabling liquid passing through interstices among the swollen gel particles with absorption performance under load. The present invention is: a process for producing aqueous-liquid absorbing resin articles (P), characterized by subjecting resin particles (B) that comprise a crosslinked polymer (A) comprising essential constituent units derived from a water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) which become a water-soluble vinyl monomer (al) upon hydrolysis and from a crosslinking agent (b), to surface treatment by a specific method using a C4 or lower polyhydric alcohol (c), a polyvalent metal salt (d), and a polyglycidyl compound (e); and the aqueous-liquid absorbing resin articles (P).

Abstract: The invention relates to a method for producing thermoplastic fibre composites made from a thermoplastic matrix (M) comprising a thermoplastic moulding compound (A) and reinforcing fibres (B). Said method has technical advantages when it comprises the following steps: i) a flat structure (F) made of reinforcing fibres (B) is provided, ii) the flat structure (F) is introduced into a matrix M, iii) functional groups of the matrix are reacted with polar groups of the reinforcing fibres (B), iv) the fibre composite materials is consolidated.

Abstract: The present application provides a polyimide film having low gloss and a process of fabricating the same. The process includes forming a polyimide precursor solution by reacting diamine monomers with dianhydride monomers in a solvent, forming a wet polyimide film on a support with the polyimide precursor solution, pressing the wet film with an embossing roller at a temperature equal to or higher than 100° C. and an applied pressure equal to or higher than 1 kg, thereby causing the wet film to exhibit an uneven surface, and heating the wet film to form a polyimide film.

Abstract: The embodiment relates to a quantum dot-polymer composite and a method for producing the same, wherein the quantum dot-polymer composite includes: a first phase made of a matrix resin; a second phase dispersed and distributed in the first phase, comprising a quantum dot, and having a spherical shape; and a micro scattering agent distributed in an interface between the first phase and the second phase along a surface of the second phase.

Abstract: A method of processing a protein in an acid solution is disclosed. The processed protein exhibits various optimized properties including crystallinity, thermal stability, bio-stability, and elastic modulus.

Abstract: An object of the present invention is to provide a method for preventing a thermal deformation of a molded article and a film produced by molding a structural protein, and the molded article and film prevented from thermal deformation. The thermal deformation of the molded article which is produced by molding the structural protein and has a birefringence of 1.0×10?5 to 10.0×10?5 can be prevented by keeping a water content of the molded article within a range from 0 to 8.5% by mass.

Abstract: Anti-condensation compositions and laminates comprising a cellulosic material selected from a cellulose ester and a cellulose ether and a polymer of an oxazoline, and processes for making such anti-condensation compositions without the need for saponification. Such compositions have now been shown to exhibit extremely desirable anti-condensation characteristics, with a low degree of hazing and increased hardness.

Abstract: A photocurable coating composition includes 50 to 150 parts by weight of a urethane acrylate oligomer having a number average molecular weight of 1300 to 1700 g/mol and 9 functional groups, 50 to 150 parts by weight of an acrylate monomer, 10 to 15 parts by weight of a photoinitiator, and 1 to 3 parts by weight of a surfactant.

Abstract: A film for use in a packaging structure, comprising a coating on the film surface which comprises a binder and a particulate protuberant component able to remove a volatile organic compound from an environment in contact with the film in the packaging structure. Also provided is a packaging structure comprising such a film and a package which comprises the packaging structure.

Abstract: A method for treating an extruded or molded building component, the building component formed of a substantially amorphous thermoplastic having a glass transition temperature above room temperature. The method includes heating the building component from room temperature to a treatment temperature between room temperature and the glass transition temperature, maintaining the building component at the treatment temperature for a treatment time while supporting the building component to prevent sagging, and cooling the building component from the treatment temperature. The building component does not reach the glass transition temperature after reaching the treatment temperature.

Abstract: A surface-modified polymer composition formed from an oligomeric or polymeric additive and a base polymer is disclosed. The surface-modified polymer provides non-fouling and/or non-thrombogenic properties. The composition is particularly useful in articles and materials for medical applications.

Abstract: A macroporous polymeric hydrogel microsphere that contains poly(ethylene glycol), chitosan, and water. The hydrogel microsphere, having a diameter of 50-250 gm and a mesh size of 5-100 nm, is capable of transporting biomolecules conjugated to it. Also disclosed is a method of fabricating the microsphere based on a micromolding technique utilizing surface tension-induced droplet formation followed by photo-induced polymerization.

Abstract: Monomodal foamed polymeric compositions containing clay nucleating agents are described. The clays are preferably sepiolite, palygorskite/attapulgite, or combinations thereof. Also described are processes for forming the foamed compositions.

Abstract: This invention provides methods to separate polycarbonates from plastic swarf. The present invention further provides methods of generating novel materials from post-processing polymers.

Abstract: Carbon-black-encapsulated polyamide microparticles are obtained by bringing a poor solvent of polyamide into contact with an emulsion to cause carbon-black-encapsulated polyamide to be precipitated, the emulsion being formed in a system that has separated into two solution phases when carbon black is mixed with a polymer solution prepared by dissolving a polyamide, a polymer (B) different from the polyamide, and an organic solvent (C), the polymer (B) being the main component in one of the phases, and, in the other of the phases, the polyamide being the main component and the carbon black being selectively distributed; wherein it is possible to obtain black polyamide microparticles having a number-average particle size of 1-200 ?m and a temperature difference between the melting temperature and the cooling crystallization temperature of 25° C. or more, the microparticles being suitable for use in powder bed fusion additive manufacturing.

Abstract: Magnesium hydroxide particles having a particle size of less than 200 nm and corrosion resisting properties are disclosed. Also disclosed are suspensions and powders that include the corrosion resisting particles. Coating compositions that include the corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties, and substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings, wherein at least one coating layer is deposited from such a coating composition, are also disclosed.