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 curable resin composition is provided which uses a fumarate copolymer which is excellent in thermal discoloration resistance as a binder component and is capable of forming details of a color filter. The curable resin composition of the present invention is a photocurable resin composition for forming a protective layer, RGB pixels, a black matrix or a spacer of a color filter, and contains as a binder component a fumarate copolymer having at least a molecular structure wherein a constituent unit represented by the following Formula 1 and a constituent unit having an acidic functional group(s) are linked, preferably further having a constituent unit with an ethylenically unsaturated bond:wherein, each of R1 and R2 is independently a branched C3-8 alkyl group which may be substituted, or a C4-8 cycloalkyl group which may be substituted.

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.

The present invention relates to a negative photosensitive resin composition which is sensitive to long wavelength ultraviolet rays, and more specifically, to a negative photosensitive resin composition comprising: a) one or a mixture of copolymers selected from i) an acrylic copolymer, ii) a polyimide-based copolymer, and iii) a siloxane-based copolymer; b) a photoinitiator; and c) an acridine-based photosensitizer having a specific structure. According to the present invention, the negative photosensitive resin composition has excellent resolution, transmittance, thermochromism resistance, adhesive force and the like, particularly, has excellent sensitivity at long wavelength ultraviolet rays of 405-435 nm, and thus is appropriate for use in an exposure device for the exclusive use of GH-line or a next generation digital exposure device.

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 present invention provides a fluoroelastomer composition excellent in heat discoloration resistance and moldability, and a molded article, a crosslinked article, and a covered electric wire using the fluoroelastomer composition. A fluorine-containing elastomer composition, characterized in that it contains fluorine-containing rubber (a) and fluorine-containing copolymer (b), and the aforementioned fluorine-containing copolymer (b) contains tetrafluoroethylene-based units (A) and ethylene-based unit (B), the molar ratio [(A) / (B)] of the aforementioned unit (A) to the aforementioned unit (B) is 25 / 75 to 80 / 20, and the crystallization temperature of the aforementioned fluorine-containing copolymer (b) is 100-210°C, the melt flow rate is 0.1-1000g / 10min, and the mass ratio [(a) / (b)] of the aforementioned fluorine-containing rubber (a) to the aforementioned fluorine-containing copolymer (b) is 80 / 20- 20 / 80.

The present invention provides a resin composition for encapsulating an optical semiconductor element. The resin composition includes (A) a first organosilicon resin, having an unit containing a non-aromatic group which contains an epoxy group and an unit composed by a linear di-organopolysiloxane chain segment, (B) a second organosilicon resin, having an unit containing a non-aromatic group which contains an epoxy group and an unit containing a di-organosiloxygen unit, (C) a curing agent and (D) a curing catalyst. The composition has favorable curing performance and heat resistance color changing performance.

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.