33results about How to "Full heat resistance" patented technology

Provided is a combined piston ring having an excellent gas seal characteristic and comprising a special gap effective for countermeasures against blow-by, wherein a combustion chamber-side side surface is not locally deformed nor melted even when receiving combustion gas from the combustion chamber side. To this end, a combined piston ring comprises a piston ring body which is produced from a high-strength heat-resistant resin and has a gap part having a step shape when viewed from the upper and lower surfaces and the outer peripheral surface, and a spring which is mounted to the inner peripheral part of the piston ring body and presses the piston ring body radially outward, and the combustion chamber-side side surface of at least the piston ring body is coated with a heat-resistant film.

A junction structure is provided with: an electrode of a substrate; an electrode of a semiconductor element; and a junction section that joins the electrode of the substrate, and the electrode of the semiconductor element. Starting from the electrode of the substrate and progressing toward the electrode of the semiconductor element, the following layers are placed in the following sequence in the junction section: a first intermetallic compound layer that contains a CuSn-based intermetallic compound; a Bi layer; a second intermetallic compound layer that contains a CuSn-based intermetallic compound; a Cu layer; and a third intermetallic compound layer that contains a CuSn-based intermetallic compound.

Provided is an economical multilayered resin tube-shaped body that can be safely used in a high-temperature environment such as an engine compartment. A multilayered resin tube-shaped body (1) having excellent heat resistance is obtained by forming an outer layer (2) from a thermoplastic resin having a melting point of 190-300 C and forming an inner layer (3) from a thermoplastic resin having a melting point of 150-300 C and low liquid or gas permeability. The thermoplastic resin that forms the outer layer (2) is preferably a resin having a hoop stress of 10 MPa or greater in a 120 C atmosphere. Furthermore, the thermoplastic resin that forms the inner layer (3) is preferably a resin having a gasoline permeability of 1.0 g / m2day or less.

A laminate comprising a heat-resistant polymer film, an inorganic substrate, and a polyamine compound layer formed using a polyamine compound, wherein the polyamine compound layer is formed between the heat-resistant polymer film and the inorganic substrate.

The present invention pertains to a coated metal plate having a coating film on at least one surface thereof. Provided are the coated metal plate and a drawn-and-ironed can comprising the coated metal plate that have excellent can production workability without metal exposure even when exposed to harsh processing such as drawing and ironing, as a result of: the coating film containing polyester resin as a main component thereof and a beta-hydroxyalkyl amide compound as a curing agent; and the elongation of the coating film under test conditions of 90 degree being at least 200%.

The present invention addresses the problem of providing a novel ethylene / alpha-olefin / non-conjugated polyene copolymer which contains a specific non-conjugated polyene, e.g., VNB, as a comonomer ingredient and has a low long-chain branch content and which, when crosslinked with a peroxide, has excellent curability and satisfactory processability. The ethylene / alpha-olefin / non-conjugated polyene copolymer according to the present invention is characterized by comprising constituent units derived from ethylene (A), a C3-20 alpha-olefin (B), and a non-conjugated polyene (C) including two or morepartial structures in total in the molecule which are selected from the group consisting of those of general formulae (I) and (II), and by satisfying specific requirements.

The present invention relates to a thermoplastic resin composition, which is a thermoplastic resin composition comprising a thermoplastic resin (A) and a resin (B) having a reactive functional group, the composition of which is observed by transmission electron beam tomography In the form, a thermoplastic resin composition having a specific structure and containing a polyamide resin has a relaxation time T1C of the carbon core measured by solid NMR within a specific range, and the composition has an excellent balance of opposite properties such as impact resistance and heat resistance At the same time, it remarkably exhibits specific viscoelastic properties that have never been found in existing polymer materials, and is remarkably excellent in impact energy absorption performance and vibration energy absorption performance during high-speed deformation.

The present invention provides a hot-melt adhesive having a sufficiently long pot life and exhibiting good strength and heat resistance. The invention relates to a hot-melt adhesive composition containing hydrocarbon cyclic polymer, α-olefin polymer and tackifying resin.

[Problem] To provide a resin composition for display substrates which is capable of forming a useful polyimide film with an appropriate linear expansion coefficient and an appropriate flexibility. [Solution] This resin composition for display substrates contains a polyamic acid which includes a structural unit represented by formula (1) and a structural unit represented by formula (3), or a polyimide which includes a structural unit represented by formula (2) and a structural unit represented by formula (4). [In formulae 1 through 4, X1 represents a tetravalent organic group having an aromatic group and two carbonyl groups, Y1 represents a divalent aromatic group or aliphatic group, Y2 represents a divalent aromatic group having two or more nitrogen atoms, and n and m represent natural numbers.]

Provided are: a prepreg which makes it possible to obtain a fiber-reinforced composite material in which interlayer peeling during point impact is suppressed; a fiber-reinforced composite material having excellent resistance during point impact; and a method for producing the fiber-reinforced composite material. A cured product obtained by curing this prepreg under specific curing conditions has a projected area of a damaged part of 400 mm2 or less as measured by a specific test 1, and the maximum value of tan [delta] of the cured product as measured by a specific test 2 is observed at 100 DEG C or higher. This prepreg contains a reinforcing fiber base material, an epoxy resin composition, and a polymer (C2), the polymer (C2) being present on the outermost surface of the prepreg, and the polymer (C2) having a glass transition temperature of 10 DEG C or less as observed under specific measurement conditions. The manufacturing method of the fiber reinforced composite material comprises the step of heating and forming the prepreg.

Provided is a photosensitive resin composition which exhibits excellent photosensitivity, flexibility, adhesiveness, pencil hardness, solvent resistance, acid resistance, heat resistance, and plating resistance. Also provided is a cured product comprising the same. To this end, the photosensitive resin composition contains (A) an alkali aqueous solution-soluble resin, (B) a cross-linking agent, (C) a photopolymerization initiator, and (D) an epoxy resin represented by chemical formula 1. In the chemical formula 1, the value of (i) / (ii) is 1-3, and G represents a glycidyl group, whereas n is an average value of a repetition number ranging from 0 to 5.