Abstract:
Particulate expanded ethylene or propylene polymers having a particle diameter of 3 to 50 mm. and a bulk density of 5 to 200 grams/liter and a gel content of 10 to 85 percent by weight; and a method for the production of such expanded ethylene or propylene polymer particles in which the particles are treated with high energy radiation.
Abstract:
Thermally insulating and transparent laminated glass consisting of at least two superimposed sheets of glass with an interlayer of a solid aqueous alkali metal silicate between each two sheets of glass.
Abstract:
A reflector containing a light-reflecting layer, particularly for affixation to road edge marker posts, for warning traffic of the existence of icing conditions. The reflector consists of a transparent capsular container located in front of a lightreflecting layer and filled with a liquid which extends over the surface of the layer, and which as a result of a change of state loses the transparency it possesses at higher temperatures when temperatures just above the freezing point of water prevail.
Abstract:
A process for the production of sheet material having reversible absorptivity for moisture vapor by applying polymers containing at least 5% by weight of esters of ethylenically unsaturated carboxylic acids with tertiary alcohols having four to eight carbon atoms as polymerized units to substrate materials and heating to a temperature higher than the decomposition temperature of the polymer to thereby eliminate an olefin and form free carboxylic groups in the polymer.
Abstract:
PRODUCTION OF EXPANDED MATERIAL BY MIXING COPOLYMERS OF ETHYLENE WITH POLYISOCYANATES AND EXPANDING AGENTS UNDER PRESSURE AND DECOMPRESSING THE HOMOGENEOUS MIXTURES.
Abstract:
A FIRE-RESISTING DOOR HAVING STIFFENING MEMBERS INSIDE A DOOR FRAME. BOTH THE FRAME AND THE STIFFENING MEMBERS ARE COVERED WITH AN INSULATING LAYER AND A METALLIC OUTER LAYER, THE LAYERS BEING JOINED IN SUCH A WAY THAT THE UNION IS DESTROYED BY THE ACTION OF HEAT.