38results about How to "Low Odor Properties" patented technology

The invention relates to low-odor, low-emission, high abrasion-resistant and high-temperature-resistant nylon and a preparing method thereof. The material is prepared by the steps of stirring and mixing 90-98 parts of high-temperature-resistant nylon, 1-5 parts of a hydrophobic high-temperature-resistant odor-adsorption masterbatch, 1-5 parts of surface treated nano silicon carbide, 0.1-0.5 part of a solid lubricant, 0.2-1.0 part of a lubricant and 0.1-1 part of an antioxidant and then carrying out melting extrusion granulation through a twin-screw extruder. Tetraethoxysilane and a coupling agent are used for composite surface treatment of the nano silicon carbide, the dispersity of the nano silicon carbide as a wear-resisting agent in matrix resin is increased, and thus the cohesive property of the wear-resisting agent and the high-temperature-resistant nylon matrix is improved, the prepared high-temperature-resistant nylon has significant improvement in wear resistance; at the same time, with use of the hydrophobic high-temperature-resistant odor-adsorption masterbatch, the product is kept a low-odor characteristic in processing and application processes.

The invention relates to a PC / ABS alloy material with low odor and low total carbon transpiration, ingredients (weight percentage) of which are that: 50-80 percent of polycarbonate, 10-45 percent of ABS / PP graft, 0.1-5.0 percent of odor master batch, 0.1-1.0 percent of antioxidant, 0.1-1.0 percent of lubricant and 0-5.0 percent of other addition agent. Compositions (weight percentage) of odor master batch in the method are 20-70 percent of matrix resin ABS and 30-80 percent of odor inhibitor. The preparation method thereof is that: the matrix resin and the odor inhibitor are put into a twin-screw extruder; odor master batch of high concentration is made by melting, extruding and pelleting; finally, when the PC / ABS alloy material is formed, the PC / ABS alloy material is mixed evenly with alloy material for forming. The method has the advantage that forming and processing of the composite material are not impacted and comprehensive physical and chemical properties are excellent and odor characteristic is good.

The invention discloses a novel low-odor and low-emission ABS resin compound which contains the following materials by weight proportion: 100 ABS, 1.0-5.0 hydrophobic odor adsorption master batch, 0.1-1.0 antioxidant and 0-5.0 other auxiliaries. The invention has the advantages that a hydrophobic odor adsorption system is adopted, so the low-odor and low-emission ABS resin compound prepared through the method can ensure the characteristic of low odor of the material, the processing of the material is not affected and the physical mechanical properties of the material are not affected.

The invention provides a crumb of block copolymer and an adhesive composition. The crumb of a block copolymer has excellent transportability and is capable of forming an adhesive composition that has excellent solubility, low melt viscosity characteristics and low odor characteristics, with an excellent balance among these characteristics, in cases where the crumb of a block copolymer is used in the adhesive composition. The present invention relates to a crumb of a block copolymer, which contains a polymer block mainly composed of at least one vinyl aromatic hydrocarbon monomer unit and a polymer block mainly composed of at least one conjugated diene compound monomer unit and has a weight average molecular weight of 20,000-1,000,000, while having a specific surface area, a cumulative pore volume of pores having pore radii of 1-100 [mu]m and an average pore radius respectively within specific ranges.

The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane comprising a polyurethane polymer and two different aldimines as blocked amine hardeners in a specific ratio range. The membrane has a low odour, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing membrane is particularly suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor wheathering conditions in a broad temperature range.

The invention discloses low odor and distribute nylon 6 combination which comprises the following components in proportion by weight: 55 to 99% of nylon 6, 0 to 6% of polypropylene grafted with maleic anhydride, 0 to 30% of inorganic filler, 0.5 to 3.5 of hydrophobic odor adsorbent, 0.1 to 1% of antioxidant, 0 to 2% of lubricant and 0 to 3% of other accessory ingredient. The invention has the advantages that a hydrophobic odor adsorbent system is used, when the low odor characteristics of the materials are ensured by the low odor and distribute nylon 6 combinations, various physical mechanics capabilities of the materials are not influenced, and the contour machining property of the materials is not influenced.

The invention discloses a polyphenylene sulfide modified PET composition and a preparation method thereof. The preparation method comprises: pouring PET, odor adsorption master batch, a silicon nitride and silicon carbide complex, a lubricant and an antioxidant into a high-speed stirrer, stirring, uniformly mixing, and adding into a double-screw extruder; and adding polyphenylene sulfide modifiedglass fiber from the glass fiber port of the extruder, carrying out melt extrusion, and granulating to obtain the polyphenylene sulfide modified PET composition. According to the invention, the glassfiber is subjected to impregnating treatment by using the special polyphenylene sulfide dispersion liquid, so that the dispersity of the glass fibers in the PET matrix is greatly improved, the wear resistance of the prepared PET is remarkably improved, and the excellent mechanical properties are maintained.

The invention relates to novel low odor polypropylene composite material and a preparation method thereof. The low odor polypropylene composite material comprises the following components by weight percentage: 50 to 95 percent of polypropylene, 0 to 45 percent of inorganic filler, 0 to 20 percent of flexibilizer POE, 1.0 to 5.0 percent of hydrophobic type odor agglomerate, and 0.1 to 5.0 percent of other additives. The preparation method comprises the following steps: firstly mixing 20 to 70 percent basal body resin and 30 to 80 percent attapulgite which is modified by a quaternary ammonium salt surfactant, and carrying out extrusion and granulation to form the high concentration hydrophobic type odor agglomerate; and then mixing the high concentration hydrophobic type odor agglomerate with the polypropylene, the inorganic filler, the flexibilizer POE and the other additives, placing the mixture in a double screw extruder, and obtaining the low odor polypropylene composite material after melted extrusion and granulation. The method is characterized in that the method can make the forming and processing of the composite material be free of any impact, and make the composite material have excellent comprehensive physical and chemical properties and a good odor characteristic.

The invention relates to a low-odor polypropylene compound and a preparation method thereof. A low-odor polypropylene composite material incorporating a three-component stabilizer system formulated from the following raw materials in weight percent (%): polypropylene 55-95, talc 0-40, fatty acid ester compound 0.5-3, nano zinc oxide 0.5-3, nano titanium dioxide 0.5-3, heat stabilizer DSTP 0.1-1.0, heat stabilizer 31140.1-1.0, heat stabilizer 6180.1-0.5, wherein the fatty acid ester compound is carbon Long-chain fatty acid esters with carbon atoms in the chain between 25-45; the heat stabilizer DSTP is octadecyl thiodipropionate; the heat stabilizer 3114 is 3,5-di-tert-butyl-4 -Diethyl hydroxybenzyl phosphate; heat stabilizer 618 is dioctadecyl pentaerythritol bisphosphite. The invention has the characteristics of simple preparation process, low cost, excellent physical and chemical comprehensive properties, excellent odor characteristics and the like.

Dimethicone copolyol sulfosuccinate surfactant compounds having low-odor characteristics are disclosed. The low-odor dimethicone copolyol sulfosuccinate is substantially free from propionaldehyde and acid-releasable precursors of propionaldehyde, thereby substantially eliminating the cosmetically undesirable odor characteristic of conventional dimethicone copolyol sulfosuccinate surfactants. The low-odor dimethicone copolyol sulfosuccinates are suitable for use as surfactants in household or personal care products and applications.