Abstract: In the state where a tire valve cap body has been fixedly screwed onto a valve mouthpiece, a top cover is pushed to open a tire valve, allowing introduction of a tire air pressure. A piston is slidably incorporated in a cylinder chamber defined within the top cover and is urged by a return spring. Upon the introduction of the tire air pressure, the piston is displaced to a position at which the biasing force of the return spring balances with the force of the introduced air pressure. An indication mechanism is provided to indicate, through an indication window formed in a cylinder member, a position of the piston member displaced by the tire air pressure introduced, thereby indicating a measurement value of the tire air pressure.

Abstract: Moisture-curable urethane resin compositions comprising: (a) a urethane prepolymer having two or more terminal isocyanate groups, (b) a blocked amine compound which is essentially nonreactive with an isocyanate group and generates a primary or a secondary amino group upon contact with water, and (c) an inorganic filler treated with an organic compound, are disclosed. More particularly, the urethane resin compositions comprise a hydrophilic urethane prepolymer having oxyethylene moieties, and a blocked amine compound having two or more oxazolidine rings.

Abstract: The invention relates to a method of improving the electric conductivity of resin. The method comprises compounding (A) a macromolecular compound obtained by crosslinking a polyether polyol and (B) a soluble electrolyte salt into matrix resin. The invention insures a marked improvement in the electric conductivity of resin without affecting its physical characteristics or causing an objectionable coloration.

Abstract: An antistatic and ionically conductive resin composition comprises:(A) 100 parts by weight of a resin,(B) 0.1 to 70 parts by weight of a high-molecular compound having an average molecular weight of not less than 10,000 prepared by reacting a polyoxyalkylene glycol with at least one of the polycarboxylic acids, polycarboxylic acid lower alkyl esters, polycarboxylic acid anhydrides and organic polyisocyanates, and(C) 0.1 to 30 parts by weight of an electrically conductive filler.

Abstract: A process for producing sheets or other shaped articles which includes applying a solution or dispersion of a hydrophilic urethane prepolymer in a large excess of water, optionally containing an inert binder polymer, to vegetable particulate materials, shaping the resulting mass, curing and drying the shaped articles.

Abstract: A method of forming a protective coating on concrete or mortar construction which comprises coating said construction with a polyurethane coating composition comprising(A) a polyol component having an average hydroxyl number from 30 to 450 mg KOH/g, or a mixture of a polyol component and a polyamine component having the sum of average hydroxyl number and average amine number of from 30 to 450 mg KOH/g; and(B) an organic polyisocyanate curing agent, the proportion of said component (B) in terms of the NCO equivalent thereof relative to the active hydrogen equivalent of said component (A) being from 0.6 to 1.5.

Abstract: An anti-corrosive polyurethane coating composition which has excellent metal corrosion inhibiting property, water resistance, adhesion property to metals, impact resistance and other properties required for anti-corrosive paints, and can be coated thick with one coating operation, containing as an essential component a polyurethane resin having a density of crosslinking of 1.10 to 2.00 per 1,000 atomic weight of the resin and produced by reaction of (A) a polyol component having a hydroxyl value of 160 to 350 mgKOH/g and being composed of a castor oil polyol alone or a mixture of a castor oil polyol and a low molecular polyol having a functionality of at least 2, preferably at least 3, and (B) a polyisocyanate component in an NCO/active hydrogen ratio of 0.85-1.151 by equivalent.

Abstract: An anti-corrosive polyurethane coating composition which has excellent anti-corrosive property, water resistance, adhesive property to metals and impact resistance and can be coated thick in one coating operation, comprising (1) a polyol mixture of castor oil or a polyol derived from castor oil and an amine polyol produced by addition reaction of an alkylene oxide to a nitrogen-containing compound having at least 2 active hydrogen atoms such as ammonia, an aliphatic amine or an aromatic amine, the amine polyol having at least 2 hydroxyl groups and a hydroxyl value of at least 150 mgKOH/g, (2) a polyisocyanate compound, and optionally coal tar, an aromatic hydrocarbon oil or resin, or usual paint additives.

Abstract: A flame-retardant polymer composition comprising a flame-retardant polymer and a different kind of a polymer, the amount incorporated of the flame-retardant polymer being 2 to 50 percent by weight based on the different polymer and said flame-retardant polymer being prepared by copolymerizing 2 to 100 percent by weight of a monomer represented by the following general formula (A) ##SPC1##wherein R.sup.1 and R.sup.2 stand for H or CH.sub.3, R.sup.3 is a linear or branched alkylene group having 2 to 6 carbon atoms, which may be substituted by a hydroxyl group, X designates Br or Cl, n is a number of from 3 to 5, and m is a number of from 0 to 1,With 98 to 0 percent by weight of at least one unsaturated compound copolymerizable with the monomer (A).