摘要:
The present invention discloses polythiol compositions containing sulfur-containing compounds with carbamate groups, and to methods for producing such polythiol compositions. These polythiol compositions can be synthesized via the reaction of an isocyanate with an allyl ether alcohol, followed by thiolation with H2S, and these polythiol compositions are often used in formulations for adhesives, paints, and coatings.
摘要:
The invention relates to a polymer comprising alkoxysilane groups, obtained by polycondensation of a diisocyanate, of a difunctional compound, of an alkoxysilane and of a monofunctional compound. The invention also relates to a cosmetic composition comprising such a polymer and to a process for caring for or making up keratin materials by application of the composition to the keratin materials.
摘要:
The invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks, hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, to a process of their preparation, and to a method of use thereof.
摘要:
Die vorliegende Erfindung betrifft neue Schlagzähigkeitsmodifikatoren, welche auf durch Reaktion von amphiphilen Blockcopolymeren erhalten werden. Diese Schlagzähigkeitsmodifikatoren eignen sich insbesondere für den Einsatz in hitzehärtenden Epoxidharzklebstoffen.
摘要:
Disclosed is an ultraviolet-curable resin composition characterized by containing a urethane prepolymer (A) having a structure represented by the general formula (1) below and a cationic photopolymerization initiator (B). [Chemical formula 1] (1) (In the formula, R 1 and R 2 independently represent an alkylene group; R 3 , R 4 and R 5 independently represent an alkyl group or a hydrogen atom; R 6 and R 7 independently represent an alkylene group having 2-4 carbon atoms; a represents 0 or 1; and b and c independently represent an integer of 0-10.)
摘要翻译:公开了一种紫外线固化型树脂组合物,其特征在于含有具有下述通式(1)表示的结构的氨基甲酸酯预聚物(A)和阳离子光聚合引发剂(B)。 [化学式1](1)(式中,R 1和R 2分别代表亚烷基; R 3,R 3, R 4和R 5独立地表示烷基或氢原子; R 6和R 7独立地表示亚烷基 具有2-4个碳原子的基团; a表示0或1; b和c独立地表示0-10的整数。)
摘要:
A material suitable for use in a hot melt ink, having a melting point of at least 65 DEG C and obtainable by reacting an aliphatic or aromatic diisocyanate with an at least stoichiometric amount of: (i) a monohydric alcohol component; or (ii) a monohydric alcohol component followed by another different monohydric alcohol component; or (iii) a monohydric alcohol component, followed by a dihydric alcohol component followed by a monohydric alcohol component; the monohydric alcohol component(s) comprising a monohydric aliphatic alcohol or an etherified or esterified dihydric aliphatic alcohol or dihydric polyalkylene glycol; as the dihydric alcohol component comprising a dihydric aliphatic alcohol or a dihydric polyalkylene glycol and being used in an amount of not more than 50 % of the stoichiometric amount of hydroxyl groups required to react with the isocyanate groups on the diisocyanate.
摘要:
Coating composition containing an organic solvent, a mixture of a polyhydroxy component (A) and a polyisocyanate component (B) as well as a compound extending its pot life. The polyhydroxy component has an acid index of between 5 and 25 mg KOH/g and the pot life-extending compound is a mixture consisting of 0.1 to 4.0 % by weight, in relation to the total weight of the coating composition, of a compound with a tertiary amino group or an amide group (C) and 1 to 15 % by weight, in relation to the total weight of (A) and (B), of a tertiary monoalcohol. The tertiary alcohols exclude 2-methyl-2-propanol and 2-methyl-2-butanol. Also described is the use of coating compositions, in particular for paintwork in car repairs.
摘要:
An optical fiber coating composition that includes an acrylic copolymer. The acrylic copolymer is a block copolymer that includes two or more acrylic blocks. The two or more acrylic blocks differ in glass transition temperature (Tg). The acrylic copolymer may include an acrylic block with a Tg above 50 °C and an acrylic block with a Tg below 0 °C. Representative monomers from which the repeat units of the acrylic blocks are derived include alkyl(meth)acrylates. In one embodiment, the acrylic copolymer includes an acrylic block with repeat units derived from methylmethacrylate and an acrylic block derived from butylacrylate. The acrylic copolymer lacks urethane groups, lacks urea groups, lacks radiation-curable groups, and is otherwise unreactive with other components in the coating composition. The acrylic copolymer features high solubility in common acrylate-based radiation-curable coating compositions and can be provided at high concentrations in acrylate-based coating compositions.
摘要:
The present invention relates to a three component composition consisting of a polyol component (A) comprising at least two polyols, one with high and one with low molecular weight, and water, a polyisocyanate component (B) comprising a methylene diphenyl diisocyanate (MDI) product with an average NCO functionality of at least 2.5, or a methylene diphenyl diisocyanate (MDI) product with an average NCO functionality of at least 2 and at least one further polyol with an amount of between 1 % and 30% based on the weight of said polyisocyanate component (B), wherein said MDI product and said polyol have reacted at least partially, and a powder component (C) comprising at least one hydraulic binder, preferably cement and/or calcined paper sludge, preferably a calcium compound selected from calcium hydroxide and/or calcium oxide, and optionally one or more aggregates. Polyurethane cementitious hybrid flooring or coating systems having glossy/semiglossy surfaces, good workability and outstanding mechanical properties can be achieved. Blister formation can be avoided.