40results about How to "Low weight loss" patented technology

Cardanol based dimers are provided. The cardanol dimers are formed by hydrosylylation with silanes. Cardanol based dimers may be further reacted to form epoxy curing agents and epoxies which can be used as anti-fouling coatings on ship hulls and marine structures. The cardanol dimers may also be used to produce friction particles or phenolic resins. Methods of synthesizing the cardanol based dimers, the epoxy curing agents and the epoxies are also provided.

The present invention relates to ester mixtures comprising trimethylolalkane esters of aromatic carboxylic acids, trimethylolalkane esters of aliphatic carboxylic acids and trimethylolalkane esters both of aromatic and aliphatic carboxylic acids, to a process for their preparation, and to their use as plasticizers for polymers.

The present invention discloses composition and methods for reducing the weight loss and / or preserving the natural gloss of post-harvest edible plant matter. In particular, the methods comprising applying to the surface of the plant matter a composition comprising an edible wax having a melting temperature below 70° C.; a hydrocolloid; a fatty acid; an emulsifier; and water, wherein said edible wax is present in a weight percent ranging from about 10% to about 25% of the total weight of the composition.

A composition and process for manufacturing a camouflaged aircraft component. The process includes providing an aircraft component; applying an uncured coating onto the aircraft component wherein the uncured coating comprises polysilazane resin, at least one pigment, at least one matting agent, and at least one diluent; allowing the diluent to evaporate; curing the coating to provided a cured coating that comprises cured polysilazane, at least one pigment, and at least one matting agent.

The invention discloses a refrigerant-resistant adhesive which is mainly prepared by mixing modified epoxy glue and polyurethane glue in a mass ratio of (0.01:1)-(0.6:1), wherein the modified epoxy glue is mainly prepared from the following raw materials: plant oil, acid anhydride, amide resin, epoxy resin, a solvent and an accelerant. The invention further discloses a preparation method of the refrigerant-resistant adhesive, a refrigerant-resistant soft composite material prepared from the refrigerant-resistant adhesive, and a preparation method of the refrigerant-resistant soft composite material. As the epoxy glue is adopted to modify polyurethane glue to prepare the refrigerant-resistant adhesive, the polyurethane glue of a high thermal resistant grade is adopted as a main body component, and the product thermal resistant grade of UL (Underwriter Laboratories Inc.) certification can be greater than grade 180. The refrigerant-resistant soft composite material disclosed by the invention is free of physical or chemical damage such as layering, bubbling and gumming in the testing and application process, is low in weight loss rate and free of conspicuous change of appearance, and results of refrigerant resistance tests show that properties such as tensile strength and breakdown voltage can be maintained to be greater than 85%.

Cardanol based dimers are provided. The cardanol dimers are formed by hydrosilylation with silanes. Cardanol based dimers may be further reacted to form epoxy curing agents and epoxies which can be used as anti-fouling coatings on ship hulls and marine structures. The cardanol dimers may also be used to produce friction particles or phenolic resins. Methods of synthesizing the cardanol based dimers, the epoxy curing agents and the epoxies are also provided.

Provided are: a resin composition for sealing electronic components which comprises a phenol resin curing agent, an epoxy resin, and a mold releasing agent with a 5% weight loss temperature of 240°C or more; a resin composition for sealing electronic components which comprises an epoxy resin and a mold releasing agent with a 5% weight loss temperature of 240°C or more; a sealing resin composition for sealing electronic components which comprises a phenol resin curing agent, an epoxy resin, and a mold releasing agent with a 5% weight loss temperature of 240°C or more, the glass transition temperature (Tg) of a cured product of the sealing resin composition being 200°C or more, and the weight loss rate of the cured product when heated in an ambient atmosphere at 200°C for 1,000 hours is 0.3% or less; and an electronic device which comprises electronic components that are sealed with said resin composition.

The invention discloses palladium-free activated nickel-plated conductive cotton fabric and a preparation method thereof, and belongs to the field of functional materials. The preparation method of the palladium-free activated nickel-plated conductive cotton fabric comprises the following steps of performing oil removal, coarsening, ultrasonic activation and chemical nickel plating on cotton fabric to obtain the conductive cotton fabric, wherein an activating solution adopted in the ultrasonic activation step comprises the following components: a reducing agent, nickel sulfate hexahydrate andwater, and the mass ratio of reducing agent to nickel sulfate hexahydrate to water is 2:1.5:30. The preparation method of the palladium-free activated nickel-plated conductive cotton fabric is simpleto operate, short in process flow and low in production cost, and the palladium-free activated nickel-plated conductive cotton fabric is endowed with good conductivity on the premise of ensuring uniform nickel plating of the cotton fabric.

The invention discloses a method for quickly processing a surface oxidation layer of a rolled-state molybdenum product. The method comprises the following steps: at normal temperature and pressure, putting the molybdenum product in a mixed cleaning solution for soak cleaning, then rushing the molybdenum product with flowing water, and finally carrying out drying processing. At normal temperature and pressure, the method adopts a mixture of sodium hydroxide and hydrogen peroxide to clean the molybdenum product. Thus, the method has the advantages of being convenient to operate, quick, efficient and environmental-friendly, the surface of the processed molybdenum product is smooth, has no pit and is rich of metallic luster, and the weight loss ration of the product after being cleaned is smaller than 1 percent.

The invention is based on the discovery that adhesive compositions containing certain low-viscosity, mono-ethylenically unsaturated monomers have surprisingly good cure parameters, resulting in very little weight loss upon cure. Many of these monofunctional monomers used alone or in combination with other monofunctional monomers described herein have high glass transition temperatures when cured. Moreover, since these monomers are monofunctional the crosslink density of the adhesive composition does not increase (relative to multi-functional monomers), which in turns results in lower stress, lower modulus adhesive compositions. As such, these monomers are useful in a variety of thermoset adhesive compositions, such as for example, die attach adhesive compositions.

A composition and process for manufacturing a camouflaged aircraft component. The process includes providing an aircraft component; applying an uncured coating onto the aircraft component wherein the uncured coating comprises polysilazane resin, at least one pigment, at least one matting agent, and at least one diluent; allowing the diluent to evaporate; curing the coating to provided a cured coating that comprises cured polysilazane, at least one pigment, and at least one matting agent.

A polysilazane composition, formulated from a vinyl silazane and an organometallic accelerator, and associated methods thereof.

The invention relates to the field of composite fiber fabrics, and particularly discloses a high-air-permeability composite fiber fabric and a preparation method thereof.The high-air-permeability composite fiber fabric comprises base cloth, and the surface of one side or the surfaces of the two sides of the base cloth is coated with a wear-resistant coating; the wear-resistant coating comprises the following components in parts by weight: 25-45 parts of polyester resin, 15-25 parts of calcium silicate powder, 5-15 parts of polyacrylamide powder, 3-10 parts of nano silicon dioxide, 2-9 parts of titanium dioxide, 1-5 parts of sodium benzoate and 30-55 parts of ethanol; the high-air-permeability composite fiber fabric provided by the invention has relatively good wear resistance.

The invention discloses a refrigerant-resistant adhesive which is mainly prepared by mixing modified epoxy glue and polyurethane glue in a mass ratio of (0.01:1)-(0.6:1), wherein the modified epoxy glue is mainly prepared from the following raw materials: plant oil, acid anhydride, amide resin, epoxy resin, a solvent and an accelerant. The invention further discloses a preparation method of the refrigerant-resistant adhesive, a refrigerant-resistant soft composite material prepared from the refrigerant-resistant adhesive, and a preparation method of the refrigerant-resistant soft composite material. As the epoxy glue is adopted to modify polyurethane glue to prepare the refrigerant-resistant adhesive, the polyurethane glue of a high thermal resistant grade is adopted as a main body component, and the product thermal resistant grade of UL (Underwriter Laboratories Inc.) certification can be greater than grade 180. The refrigerant-resistant soft composite material disclosed by the invention is free of physical or chemical damage such as layering, bubbling and gumming in the testing and application process, is low in weight loss rate and free of conspicuous change of appearance, and results of refrigerant resistance tests show that properties such as tensile strength and breakdown voltage can be maintained to be greater than 85%.

Administration of a therapeutically effective amount of 3,5-diiodothyropropionic acid stimulates weight loss in patients, lowers triglyceride levels and reduces risk of death or progression of coronary heart disease in patients with metabolic syndrome.