1. Articles in category: Summarization

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    1. Ethylene-propylene copolymer rubber composition having high modulus

      An ethylene-propylene copolymer rubber composition having a high Young's modulus, which comprises 100 parts by weight of a mixture of the following ingredients (a) and (b) in a weight ratio of ingredient (a)/ingredient (b) of 67/33-50/50, said ingredient (a) being an ethylene-propylene copolymer having a Mooney viscosity of at least 75, said ingredient (b) being divinylbenzene, (c) 0.3-2.5 parts by weight of an organic peroxide, and (d) 0.01-0.25 part by weight of sulfur, and the homogeneous rubber composition cured at 120.degree.-180.degree.C having a Young's modulus of 200-500 ...
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    2. Method for producing webs, panels or sandwich elements of foam plastics reinforced with rovings

      Means for producing fiber-reinforced foam plastic webs, panels, sandwich panels and the like from continuous rovings and a foam reaction mixture. Rovings are incorporated into a foam product or core by means of an air nozzle coupled to and adjustable in its position to the nozzle of a mixing head for ejecting the foam reaction mixture.
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    3. Plastics stabilized against ultraviolet radiation

      Thermoplastic polymers are stabilized against ultra-violet radiation by incorporating therein as a stabilizer a stabilizing amount, e.g., 0.1 to 5% by weight of a tertiary phosphine oxide or sulfide of the general formula: ##EQU1## in which X is oxygen or sulfur and R.sub.1, R.sub.2 and R.sub.3 are each selected from hydroxyalkyl, haloalkyl, carbalkoxyalkyl, acyloxyalkyl, phenylhydroxyalkyl wherein the phenyl radical may be substituted by one or more halogens, and cyanoalkyl wherein the alkyl radical has 1 to 6 carbon atoms.
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      Mentions: Germany
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