317 results about "Composition B" patented technology

Two lubricating polyurea-ester compositions with high stability and extreme-pressure antiwear performance contain proportionally basic oil, urea-based thickening agent, Ca-based thickening agent and extreme-pressure agent for composition A, or the composition A plus inorganic Ca salt for composition B.

The present invention provides an ink composition set comprising an ink composition A comprising at least a colorant and an interior curable photopolymerization initiator, and an ink composition B comprising at least a polymerizable compound, a surface curable photopolymerization initiator and a polymerization accelerator, and an ink-jet recording method using the ink composition set.

A photocurable ink composition set includes ink composition A and ink composition B. Ink composition A contains a dendritic polymer and an monomer expressed by general formula (1): CH₂═CR¹—COO—R²—O—CH═CH—R³. Ink composition B contains a coloring agent and a monomer expressed by general formula (1). In the formula (1), R¹ represents a hydrogen atom or a methyl group, R² represents an organic moiety having a carbon number in the range of 2 to 20, and R³ represents a hydrogen atom or an organic moiety having a carbon number in the range of 1 to 11.

The invention discloses a high-moisture filling material and a preparation method thereof. The high-moisture filling material comprises a composition A and a composition B, wherein the composition A comprises 52.4 to 95 by weight percent of sulfo-aluminate cement clinkers, 2.7 to 39 by weight percent of aluminate cement clinkers, 0.3 to 2 by weight percent of setting retarder, and 1.5 to 8 by weight percent of suspending agent; the composition B comprises the following ingredients: 40 to 80 by weight percent of anhydrite, 10 to 30 by weight percent of lime, and 10 to 36 by weight percent of compound additives. The high-moisture filling material has the advantages of easily-available raw materials, low price, good stability, high long-term strength and no risk of surface efforescence.

A photo curable ink composition set, comprising: an ink composition A that includes at least a color material, a polymerizable compound, and a radical polymerization photoinitiator; and an ink composition B that includes at least a radical polymerizable compound and does not include the color material and the radical polymerization photoinitiator, wherein the ink composition A and/or B includes a sensitizer.

The invention provides a conductive plastic and a preparation method thereof. The conductive plastic comprises the following blended compositions: a, thermoplastic resin; b, rubber particle with a crosslinking structure; c, a conductive filter; and d, a low-melting-point metal. The gel content of the composition b is 60% by weight or more, and the average particle size of the composition b is 0.02-1 mu m; the composition c is not fused at a thermoplastic-resin processing temperature; the composition d is at least one of a single-composition metal or metal alloy, the melting point of the composition d is 20-480 DEG C and is lower than the thermoplastic-resin processing temperature; and the weight ratio of the composition b to the composition a is 0.1:99.9-30:70. The conductive plastic is low in filling content of the conductive filler and the metal, is relatively low in conductive performance, can be prepared by using a common melt blending method, and can be used to prepare antistatic electromagnetic-wave-interference-resisting electron production equipment and tools with dust-free requirements, and electronic apparatuses, instrument housings and decoration materials of dust-free production workshops.

A process for the production of multi-layer coatings comprising the successive steps: 1) applying an 8 to 20 μm thick coating layer from an aqueous coating composition A onto a substrate provided with an EDC primer, 2) applying a 5 to 15 μm thick base coat layer from an aqueous coating composition B onto the previously applied coating layer, 3) applying a clear coat layer onto the base coat layer, 4) jointly curing the three coating layers, wherein coating compositions A and B being different from each other and wherein the coating composition A contains at least one metal platelet pigment having a thickness from 10 to 100 nm in a proportion corresponding to a pigment/resin solids ratio by weight from 0.06:1 to 0.2:1.

The invention discloses a novel de-alcoholized organosilicon potting adhesive, taking hydroxy-terminated dimethyl silicone polymer as the principal raw material, comprising composition A and composition B. Composition A includes (calculated by weight percent) 107 silicone rubber + base 100, plasticizer (5 to 15), filler (0 to 20), and solidifying accelerator (0.1 to 1). Composition B includes (calculated by weight percent) hydroxylamine catalyst (0.8), crosslinking agent (1 to 10), coupling agent (0.1 to 0.5) and plasticizer (3 to 5). The base adopts preprocessed 107 silicon rubber (107 silicon rubber: base = 30:70 to 50:50). The potting adhesive has excellent heat-resistance and electric performance; the volume resistance is as high as 1.0*1015 Omega question mark cm, and the dielectric coefficient reaches 25kv/question mark mm-1.

The invention discloses an industrial preparation method for calcium carbonate nanometer beads, which is an industrial preparation method for nanometer calcium carbonate with a bead-shaped structure, and comprises the following steps that: (1) natural limestone is crushed and calcined, then is added with hot water for digestion, and passes through a sieve for refining to be prepared into a refined calcium hydroxide material liquid; (2) the calcium hydroxide slurry is sent into a reactor system, proper kiln gas is aerated for carbonization reaction, the concentration of carbon dioxide in the kiln gas is between 10 and 50 percent, and a crystal control agent composition A and a crystal control agent composition B are added before the carbonization or at an initial carbonization stage; and (3) an obtained product is filtered, dried and crushed to obtain the bead-shaped nanometer calcium carbonate. The diameter of the bead-shaped nanometer calcium carbonate is between 20 and 50nm, the slenderness ratio is between 10 and 30, and the BET specific surface area is larger than 30m/g. The bead-shaped nanometer calcium carbonate has good dispersivity, improves the mechanical property of materials, and improves the barrier property of the materials to various gases and liquids, so the bead-shaped nanometer calcium carbonate can be widely applied to industries such as rubber, plastic, coating, printing ink, paper making, sealing gum and the like.

The invention relates to a wear-resistant epoxy resin coating material modified by high dispersibility of molybdenum disulfide and a preparation method thereof. The coating material comprises composition A and composition B, wherein the composition B is a curing agent, and the mass of the composition B is 5 to 30 percent of that of the composition A; and the composition A comprises the following components in percentage by mass: 25 to 45 percent of epoxy resin, 20 to 36 percent of solid lubricant, 1 to 4 percent of coupling agent, and 25 to 55 percent of organic solvent. The coating material improves the compatibility of the solid lubricant, namely the molybdenum disulfide and a bisphenol-A epoxy resin solution, solves the problem that the solid lubricant has poor dispersivity in the resin solution, and overcomes the defects that a polymeric solid lubricant coating has non-uniform concentration, more difficult thickness control, flawed coatings and so on. The preparation method for the coating material is simple and easy to operate.

The invention relates to a resin used for polyurethane cold-resistant flexible middle/low-density shoes and a preparation method of the resin, and belongs to the technical field of polyurethane resin preparation. The method comprises the following steps of: mixing compositions A and B, foaming the mixture with a polyurethane low-pressure foaming machine, injecting into a shoe mould and molding. The composition A is a mixture of polyester polyol A1, polyester polyol A2, a diol chain extender, a catalyst, an organic silicon foam stabilizer and water; the composition B is a prepolymer obtained by chemical reaction of polyisocyanate, polyester polyol A1, polyether glycol B1, polyether glycol B2 and a secondary reaction inhibitor. The product provided by the invention can maintain flexible and cold-resistant properties in case of low density, so that the shoe is flexible and the sole is not liable to break in winter. The invention has the advantages of easily-accessible raw materials, simple process, good product reproducibility and low cost, and can achieve mass production. The foaming process adopts only water, so that the whole production process is environment-friendly.

The invention belongs to the field of polyurethane, and concretely relates to a polyurethane combined material for furniture sponge and a preparation method thereof. The combined material is prepared by mixing a composition A and a composition B, the composition A is prepared from polyether polyol, polymer polyol, a cross-linking agent, a foaming agent, a foam stabilizer , a pore-opening agent and a catalyst, and the composition B is prepared from polyether polyol, an isocyanate and a pore-opening agent. When the combined material is used, the composition A and the composition B are mixed according to the weight ratio of 100:75-110 and injected into a die, so that high-bearing low-density furniture sponge is prepared. The combined material employs low-volatilization low-atomization raw materials, and possesses advantages of low smell, good fluidity, wide applicable temperature scope and the like. The furniture sponge prepared from the combined material possesses the advantages of being basically odorless, safe, nontoxic, free of defects on the surface, good in elasticity, excellent in handfeel, low in density, good in bearing property and the like. The invention also provides a preparation method for the combined material, and the technology is reasonable.

The invention discloses formaldehyde-free cementing compound for a profiled artificial board and a preparation method thereof. The preparation method comprises the following steps that: a composition A is firstly prepared: appropriate water is added into a reaction kettle with a stirring device, polyvinyl alcohol is slowly added when the water is heated to 30 DEG C, and the temperature is increased to 90 DEG C, so the polyvinyl alcohol is completely dissolved, and the temperature is preserved for one hour; then the raw materials are cooled down to 50 DEG C; synthesized liquid is added, and dispersant, emulsifier, defoaming agent and anticorrosion sterilizing agent are then added and stirred for 10 to 15 minutes; then stuffing is added and is dispersed for 45 to 60 minutes at a high speed, so all raw materials are uniformly mixed, and the mixture is filtered to obtain the composition A; and when in use, the composition A is coated after being uniformly mixed with a composition B according to a stipulated weight part. The production technique is simple, the adhesion strength can be improved, the elasticity property can be guaranteed, the product quality can be improved, no toxic substance such as formaldehyde, benzene, methylbenzene, dimethylbenzene and the like is contained, and no toxicity, no harm and environmental friendliness can be completely realized.

A two-part curable ink composition set includes an ink composition A which contains at least a photopolymerization initiator and a polymerizable compound and which does not contain a coloring material, and an ink composition B which contains at least a coloring material and a polymerizable compound and which does not contain a photopolymerization initiator, wherein either one or each of the ink composition A and the ink composition B contains a resin emulsion dispersed in the polymerizable compound.

The invention discloses a polyurethane waterproof coating for building and a method for preparing the same. The polyurethane waterproof coating consists of a composition A and a composition B according to the weight ratio of 1.0:1.0-2.5, wherein the composition A comprises 50 to 130 portions of polyester oligomer with high crystallization degree, 18 to 45 portions of polyisocyanate, 5 to 15 portions of phthalate and 0.1 to 0.8 portion of a catalyst; the composition B comprises 3 to 15 portions of a curing agent, 10 to 25 portions of a reinforcing agent, 17 to 35 portions of a lubricant, 20 to 36 portions of a filler, and 5 to 18 portions of paint. The method selects linear polyester with stronger polarity and higher crystallization degree and the polyisocyanate for reaction to prepare the composition A; the composition A and the composition B have good matching performance; and a high-elasticity material formed through the mixing and curing of two compositions is subjected to rapid oriented crystallization under the action of drawing force, so that the material has high tensile strength.

The invention discloses a novel optical light-colored low-stress modified epoxy adhesive and a preparation method thereof. The adhesive consists of a composition A and a composition B, wherein the composition A comprises polyurethane modified epoxy resin (30 to 70 percent), novolac epoxy resin (20 to 40 percent), polyalcohol glycidol ether epoxy resin (10 to 30 percent), a mixed antiager (1 to 3 percent) and a plasticizer (5 to 20 percent), and the composition B comprises amine-terminated polyether (50 to 90 percent), a fatty amine epoxy hardener (10 to 50 percent), a silicane coupling agent (1 to 5 percent) and a curing accelerator (0 to 10 percent). The weight ratio of the composition A to the composition B is between 2.5 and 3.5 to 1, and the respective weight percentage of the two compositions is 100 percent. The epoxy adhesive prepared by the method has small shrinkage, good flexibility, small stress, strong bonding force, good weathering resistance and light color after cured, can be used for bonding a light path of an optical element with rigorous stress requirement and not high transmission requirement, and can be also used for bonding a non-light path of a precision optical instrument with rigorous stress requirement if a filler and a thixotropic agent are added.