34results about How to "Excellent heat discoloration resistance" patented technology

This resin composition for welding using a laser beam is characterized by containing: (A) a thermoplastic polyester resin material containing a polybutylene terephthalate homopolymer and at least oneof a polybutylene terephthalate copolymer, a polyethylene terephthalate resin, and a polycarbonate resin; and, relative to 100 parts by mass of the thermoplastic polyester resin material, (B) 0.0005-0.5 parts by mass of nigrosine, and (C) 0.01-2 parts by mass of a colorant containing an anthraquinone dye C1 having a maximum absorption wavelength in the range of 590-635 nm, a perinone dye C2 havinga maximum absorption wavelength in the range of 460-480 nm, and an anthraquinone dye C3 having a maximum absorption wavelength in the range of 435-455 nm, in a proportion of C1:C2:C3=24-41:24-39:22-46 relative to a total of 100 parts by mass of C1, C2, and C3.

Disclosed is a photocurable coating material which is cured by ultraviolet light, electron beam, radiation or the like. This coating material is excellent in thermal discoloration resistance, adhesion to a base, abrasion resistance, water resistance and impact resistance. Specifically disclosed is a photocurable coating material characterized by containing 5-95 parts by weight of a urethane acrylate (U), 5-95 parts by weight of an acrylate compound (M) and 0.1-15 parts by weight of a photoinitiator (C) per 100 parts by weight of the total of the components (U) and (M). This photocurable coating material is also characterized in that the urethane acrylate (U) contains at least one or more diisocyanates (a) selected from the group consisting of hydrogenated xylylenediisocyanate and hydrogenated methylene bisphenylene diisocyanate, and a compound (b) containing a hydroxyl group and a (meth)acrylate group. The photocurable coating material is further characterized in that the acrylate compound (M) has two or more acrylate groups in a molecule with an acrylate group content of 5-12 mmol / g, while containing no aromatic ring structure.

Disclosed is a curable resin composition containing a copolymer having a monomer unit (A) containing an alkali-soluble group and a monomer unit (B) corresponding to a curable group-containing polymerizable unsaturated compound, and an organic solvent having a boiling point at atmospheric pressure of not less than 180 DEG C. The ratio of the monomer unit (B) relative to the total monomer units constituting the copolymer is 5-95% by weight, and not less than 30% by weight of the monomer unit (B) is composed of a monomer unit corresponding to at least one compound selected from 3,4-epoxytricyclo[5.2.1.0]decane ring-containing compounds. This curable resin composition enables to form a coating film excellent in transparency, heat resistance and the like. In particular, no partial variations in coating thickness or coating defects occur when a coating film is formed by a slit coating method or inkjet method by using this curable resin composition.

A radiation-sensitive resin composition which comprises an alicyclic olefin resin to which groups having aromatic groups and polar groups are attached, an acid generator, a crosslinking agent, and a solvent and which exhibits low permittivity and excellent flatness, transparency and solvent resistance and is excellent in resolution, retention of film thickness, pattern shape, and thermal discoloration resistance; a method for the formation of patterned resin films by the use of the composition; patterned resin films made by the method; and use of the films in electronic components.

The present invention provides an antirust coating composition comprising a binder (a), zinc powder and / or zinc alloy powder (b), and glass powder (c) having a softening point of 400 to 700°C. The antirust coating composition provided by the present invention can form an antirust coating film with excellent weldability, and the antirust coating film can also prevent the oxidation of zinc after being heated at a high temperature of, for example, 400 to 900° C., thereby forming an antirust coating. Antirust coating film with excellent antirust properties, and further by adjusting the mass ratio of the glass powder (c) relative to the zinc alloy powder (b), an antirust coating film with excellent heat discoloration resistance can be formed. In addition, it is possible to provide Use of rust coating compositions.

Disclosed is a surface-treating composition having excellent corrosion resistance, thermal discoloration resistance, blackening resistance, scratch resistance, and post-processing adhesion to an organic resin layer that is formed thereon. The surface-treating composition comprises (A) an aqueous titanium-containing solution produced by mixing at least one titanium compound selected from a hydrolysable titanium compound, a low-condensed product of a hydrolysable titanium compound, titanium hydroxide and a low-condensed product of titanium hydroxide with aqueous hydrogen peroxide, (B) a zirconium carbonate compound, (C) an organic phosphoric acid compound, (D) a metal phosphate salt, (E) silicon oxide, and (F) a water-soluble organic resin and / or a water-dispersible organic resin at a specified proportion.

The aluminum-zinc plated steel sheet according to the present invention includes a plated steel sheet and a covering film that covers the plated steel sheet. The covering film contains a basic compound of transition metal other than cobalt and chromium, and metallic cobalt, or metallic cobalt and a cobalt compound. An amount of the covering film per one side is within a range of 0.01 to 0.8 g / m2. An amount in terms of mass of transition metal other than cobalt in the covering film per one side of the plated steel sheet is within a range of 4 to 400 mg / m2. An amount in terms of mass of cobalt in the covering film per one side of the plated steel sheet is within a range of 0.1 to 20 mg / m2.

The invention belongs to the field of photovoltaics, and specifically relates to a co-extruded solar module backplane and a preparation method thereof. The whole solar module backplane of the present invention consists of an EVA coating, a first support layer, an EVA partition layer, a filling Adhesive layer, metal coating, second support layer, weather-resistant layer, filled with a number of glass beads fixed between the adhesive layer and the metal coating; the solar module backsheet has excellent impact resistance, heat resistance, heat discoloration resistance At the same time, the reflective layer can concentrate and reflect the incoming sunlight to provide secondary irradiation for the photovoltaic panel, which can improve the conversion efficiency of the photovoltaic panel.

Disclosed is a surface-treating composition having excellent corrosion resistance, thermal discoloration resistance, blackening resistance, scratch resistance, post-processing adhesion to an organic resin layer that is formed thereon, and adhesion under high-temperature high-humidity environments. The surface-treating composition comprises (A) an aqueous titanium-containing solution produced by mixing at least one titanium compound selected from a hydrolysable titanium compound, a low-condensed product of a hydrolysable titanium compound, titanium hydroxide and a low-condensed product of titanium hydroxide with aqueous hydrogen peroxide, (B) a zirconium carbonate compound, (C) an organic phosphoric acid compound, (D) a metal phosphate salt, (E) silicon oxide, (F) a water-soluble organic resin and / or a water-dispersible organic resin, and (G) a silane coupling agent at a specified proportion.