51results about How to "Low moisture resistance" patented technology

A thermosetting resin composition comprising (1) a copolymer resin comprising (a) a monomer unit and (b) a monomer unit respectively represented by the following general formulae (I) and (II): <CHEM> wherein R<1> represents hydrogen, a halogen, or a C1-C5 hydrocarbon group; R<2> represents a halogen or a C1-C5 hydrocarbon group; x is 0 to 3; and each of m and n is a natural number, and (2) a cyanate resin having at least two cyanate groups per molecule. To provide a printed wiring board material and a printed wiring board for electronic appliance, having a low dielectric constant and a low dielectric dissipation factor as well as improved heat resistance.

The invention discloses a production process of a knitted sportswear fabric. The production process comprises a step of selecting and pretreating the knitted sportswear fabric, a step of preparing a waterproof auxiliary agent, a step of soaking the knitted sportswear fabric with the waterproof auxiliary agent, a step of leaching the soaked knitted sportswear fabric through a padder, a step of drying the leached knitted sportswear fabric in a drying oven and a step of baking the dried knitted sportswear fabric in a sizing machine. On the basis of the knitted sportswear fabric, the knitted sportswear fabric is endowed with high waterproofness, ventilation performance and water vapor permeability; the waterproofness is at the level of 4 to 5; and the permeation volume is greater than 1200, and the wet resistance value is less than 1.5 m<2>.Pa / W. The production process can fill the blank that nearly no knitwear is sold on the Sports and Outdoor market and the waterproof, breathable and permeable fabric market, can meet the market requirement and is high in economic benefit.

A curable coating composition comprising: (a) a silicate, such as sodium silicate, potassium silicate or lithium silicate; (b) a phosphate, such calcium phosphate, magnesium phosphate or sodium phosphate; and (c) a metal oxide, such as magnesium oxide, aluminum (III) oxide, scandium (III) oxide, yttrium (III) oxide, or zirconium oxide. Such curable coating compositions may be used as non-thermochromic (tailored based on expected operating environment) thermal control coating compositions for application to spacecraft and components thereof. As an alternative metal oxide component, for use in lower temperature applications, or in applications for which thermochromism at elevated temperatures is not a concern, the metal oxide may comprise zinc oxide. Also provided is a curable coating composition comprising: (a) a silicate (e.g. as above); (b) a phosphate (e.g. as above); and (c) a metal sulphate, such as a barium sulphate. Cured coatings are also provided, as are thermal control coatings, thermal control paints, and processes for making coated substrates.

It is an object of the present invention to provide a thermal transfer sheet which has a high transfer sensitivity in thermal transfer printing to obtain a high density print, has a high sharpness of thermal transfer images, can prevent an abnormal transfer in printing even after being stored at high temperature and high humidity, and can provide a sufficiently satisfactory printed matter.The above object is achieved by a thermal transfer sheet comprising: a substrate; a heat resistant slip layer provided on one side of the substrate; an undercoat layer and a dye layer provided in that order on the other side of the substrate, wherein the undercoat layer is formed by applying and drying a coating liquid which contains, as main components, a water soluble self cross-linking resin and colloidal inorganic pigment ultrafine particles, and cross-linking polymerizing the water soluble self cross-linking resin, or wherein the undercoat layer is formed by using colloidal inorganic pigment ultrafine particles and a copolymer resin of vinyl pyrrolidone and vinyl acetate as main components.