Abstract: Polymerizable isocyanurate monomers and dental compositions are described. A hardenable dental composition is described comprising at least one isocyanurate monomer that is a stable liquid at about 25° C. The isocyanurate monomer comprises at least one divalent linking group bonded to a nitrogen atom of a trivalent isocyanuric acid ring, wherein the divalent linking group comprises a moiety selected from ester, thioester, ether, or thioether, and combinations of such moieties and a terminal ethylenically unsaturated polymerizable group.

Abstract: A compound having the formula: X?N+(CH3)(CH2CH2OH)2[(CH2)n—COO—R1]. R1 is an ester protecting group, X is a halide, and n is a positive integer. A method of reacting N-methyldiethanolamine with an ?-halo-n-alkanoate ester to form the compound.

Abstract: The present invention provides an optical material, an optical lens, and a production process for making the same. The production process includes a step of obtaining a first liquid by dissolving a compound (b) in compound (a); a step of obtaining a second liquid by adding a compound (e) mixed with a portion of a compound (d) to the first liquid and mixing; a step of obtaining a reaction mixture by adding a compound (c) to the second liquid and reacting the resulting mixture under reduced pressure; a step of obtaining a resin composition for an optical material by adding the remainder of the compound (d) to the reaction mixture and mixing; and a step of obtaining an optical material by casting and polymerizing the resin composition.

Abstract: The invention provides a thermoplastic polyurethane with at least one plasticizer, where at least one first plasticizer (i) is based on glycerol, and at least one hydroxy group of the glycerol has been esterified with a monocarboxylic acid (ii) which comprises 1, 2, 3, 4, 5, or 6 carbon atoms, more preferably 2, 3, or 4 carbon atoms, and very particularly preferably 2 carbon atoms. The invention further comprises a process for producing the thermoplastic polyurethane with the plasticizer (i), a process for coating products with said thermoplastic polyurethane, the use of the thermoplastic polyurethane, and also the use of plasticizers based on glycerol for thermoplastic polyurethane.

Abstract: Dry-to-the-touch compositions containing a polymeric matrix and a anaerobically curable component present within the polymeric matrix are disclosed. In a particularly desirable form, the compositions are moisture curable. The compositions are non-flowable, at high temperatures, and have an improved solvent resistance once cured.

Abstract: A hyper-branched polymer, which is a product obtained by performing condensation polymerization reaction of a hyper-branched polymer composition including a diisocyanate-based compound and a dihydroxyamine-based compound, a cross-linked hyper-branched polymer, an electrode and electrolyte membrane for a fuel cell including the hyper-branched polymer or the cross-linked hyper-branched polymer, and a fuel cell including the electrode and the electrolyte membrane.

Abstract: The present invention relates to a process for preparing polyurethanes, which comprise at least three hydrophilic sections, at least four hydrophobic sections, optionally allophanate segments and/or isocyanurate segments and which are prepared in the presence of alkali(ne earth) metal carboxylates. The process may comprise using at least one carboxylic acid salt of at least one metal selected from the group consisting of the alkali metals, the alkaline earth metals and mixtures thereof Furthermore, the present invention relates to the polyurethanes per se obtainable in this way, to the use thereof as thickeners for aqueous preparations, and to preparations comprising polyurethanes of this type.

Abstract: The invention relates to methods for the preparation of polyether polyols by DMC-catalysed alkylene oxide addition to starter compounds comprising acidic sulfuric acid salts, to the use thereof for the preparation of polyurethanes, and to polyurethanes comprising the polyether polyols according to the invention.

Abstract: A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl dii

Abstract: A compound having the formula: X?N+(CH3)(CH2CH2OH)2[(CH2)n—COO—R1] and a polymer having the repeat unit: X?{—OCH2CH2—N+(CH3)[(CH2)n—CO—Y]—CH2CH2O—CO—NH—R2—NH—CO—}. R1 is an ester protecting group, R2 is an organic group, X is a halide, and n is a positive integer. Each Y is O?Z+ or O—R1, where Z+ is a cation from an aqueous base. A method of reacting N-methyldiethanolamine with an ?-halo-n-alkanoate ester to form the above compound.

Abstract: The present invention relates to a compound with the following formula (I) where: R1 is particularly a straight or branched alkyl group, a is a single or double bond; R2 is particularly a hydrogen atom; R3 and R5 are a hydrogen atom when a is a single bond, and absent when a is a double bond; R4 is a hydrogen atom or an ORb group, where Rb is a hydrogen atom or an alkyl group including 1 to 12 atoms of carbon, and A1 is a divalent alkylene radical.

Abstract: A heat-activable powder adhesive composition for use in bonding a component to a surface such as glass is disclosed. The composition of the disclosed invention includes at least two polymers, at least one solid di- or poly-isocyanate in powder form, and a catalyst. Each of the two polymers has a melting point above 40° C. The two polymers are selected from the group consisting of di-functional polymers and multi-functional polymers. The preferred method of preparing the composition of the disclosed invention includes first forming three parts, including a first melted part comprising the polymers, a second melted part comprising the polymers and a catalyst, and a third part comprising the isocyanate. Once cooled, each of the first and second parts forms solid blocks which are fragmented and sieved. The three dry parts are then brought together to form the adhesive powder of the disclosed invention. The adhesive powder can be pre-applied to the attachment surface of a component to be bonded.

Abstract: A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a weight of (B). The polymer polyol of the present invention contains polymer particles having sufficiently small particle diameters, has a low viscosity, and has excellent handleability. A polyurethane resin obtained by using the polymer polyol of the present invention has excellent mechanical strengths such as elongation at break.

Abstract: The present invention provides two methods for synthesizing novel titania-polyurethane (nTiO2-PU) nanocomposites for self-cleaning coatings, one a polymer functionalization method (“grafting to”) and the other, a monomer functionalization method (“grafting from”). Here, 2,2 bis(hydroxymethyl) propionic acid (HMPA) was used as the coordination agent, which was reacted with n-TiO2 (50:50 anatase/rutile) to form nTiO2-HMPA, then polymerized in the monomer functionalization method. In the polymer functionalization method, HMPA was reacted with a pre-polymer to form the PU, and then subsequently reacted with n-TiO2 to form the polymer nanocomposite. The photocatalytic cleanability of the nanocomposites was investigated when exposed to ultraviolet radiation using additional unreacted HMPA or stearic acid as the model “dirt” compounds. Nanocomposites prepared using both strategies showed similar self-cleaning behavior, although the monomer technique gave less substrate degradation.

Abstract: A rubber composition capable of improving all of processability, abrasion resistance, rolling resistance property and wet skid performance and a pneumatic tire using the same are provided. A rubber composition comprising 25 to 100 parts by weight of a surface-treated silica based on 100 parts by weight of a rubber component comprising a natural rubber and/or a diene synthetic rubber, the surface-treated silica being obtainable by mixing a silica and a sulfur-containing organic silicon compound represented by the general formula (1): or the general formula (2): in an amount of 1 to 20 parts by weight of the sulfur-containing organic silicon compound on the basis of 100 parts by weight of the silica under a temperature of 130° to 180° C.

Abstract: Processes are described for preparing polyurethane polymers by reacting an isocyanate with an alcohol using a non-tin based catalyst having the formula where R1, which are identical or different, are a fluoroalkyl, monovalent alkyl, cycloalkyl, (cycloalkyl)alkyl, or the ring of the cycloalkyl group that optionally comprises at least one heteroatom, R2 represents a hydrogen atom, an aromatic, arylalkyl, fluoroalkyl, alkylamine, alkylguanidine, monovalent alkyl, cycloalkyl or an alkyl group substituted by an optionally substituted ring, which optionally comprises at least one heteroatom, and R3 represents an arylalkyl, fluoroalkyl, alkylamine, alkylguanidine, monovalent alkyl, cylcoalkyl, or alkyl group substituted by an optionally substituted ring which optionally comprises at least one heteroatom, when the R2 radical is not a hydrogen atom, the R2 and R3 radicals optionally being linked to form a 3 to 7 membered optionally substituted aliphatic ring, and the R1, R2 and R3 radicals do not comprise a silico

Abstract: A radiation-curable rheological assistant which comprises a compound comprising at least one (meth)acrylate group and at least one urea group of the formula —NH—(CO)—NR1R2 connected thereto wherein R1 and R2 each independently of one another are hydrogen, alkyl, aryl, cycloalkyl or aralkyl, with the proviso that at least one of the radicals is other than hydrogen, a process for preparing the rheological assistant by reacting at least one compound which has at least one isocyanate-reactive group and at least one (meth)acrylate group with at least one di- or polyisocyanate, use of the rheological assistant in radiation-curable coating compositions, such radiation-curable coating compositions, and the use of such radiation-curable coating compositions.

Abstract: The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures of ?130° C. A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation, (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one tetrasubstituted ammonium or phosphonium salt of an aliphatic or cycloaliphatic carboxylic acid, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention.

Abstract: A process for producing a rubber composition which includes mixing a silica and a sulfur-containing organic silicon compound represented by general formula (1): or the general formula (2): under a temperature of 130° to 180° C. to produce a surface-treated silica; and combining the surface-treated silica with a rubber component.

Abstract: An optical lens element resin composition including: dicyclohexylmethane diisocyanate; a polythiol compound having 3 or 4 thiol groups; and a thermal catalyst.