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Application filed by Ostergaard Hans HorgenfiledCriticalOstergaard Hans Horgen
Priority to MX1231288ApriorityCriticalpatent/MX171607B/en
Publication of MX171607BpublicationCriticalpatent/MX171607B/en
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products
(AREA)
Abstract
La presente invención se refiere a metodo para espumar un compuesto plástico para producir una espuma de plástico, caracterizado porque comprende hacer ebullir a temperatura ambiente y a presión atmosferica, un agente de soplado en una mezcla líquida del mismo con el compuesto; el agente de soplado comprende como primer componente cuando menos uno de 1,1,1-tricloroetano y percloroetileno; y un segundo componente que es cuando menos uno de difluoromonoclorometano, butano, propano o pentano o una substancia similar que tenga un punto de ebullición que es menor que la del primer componente, pero diferente de la temperatura ambiente; el segundo componente es miscible con el primer componente.The present invention relates to a method for foaming a plastic compound to produce a plastic foam, characterized in that it comprises boiling at room temperature and at atmospheric pressure, a blowing agent in a liquid mixture thereof with the compound; the blowing agent comprises as a first component at least one of 1,1,1-trichloroethane and perchlorethylene; and a second component that is at least one of difluoromonochloromethane, butane, propane, or pentane or a similar substance that has a boiling point that is less than that of the first component, but different from room temperature; the second component is miscible with the first component.
MX1231288A1988-07-181988-07-18
COMPOSITE METHOD AND BLOWING AGENT TO MANUFACTURE PLASTIC FOAM
MX171607B
(en)
FORMULATION OF ADDITIVE FOR RUBBER CONTAINING AT LEAST ONE ADDITIVE FOR MICROENCAPSULATED RUBBER, A PROCEDURE FOR ITS PREPARATION, ITS USE IN THE PREPARATION OF RUBBER AND RUBBER MIXTURES AND THE MIXTURES AND PRODUCTS OF RUBBER PRODUCED WITH.
Mixtures of 1, 1, 1-trifluoroethane, perfluoropropane and propane and their use as refrigerants, aerosol propellants or blowing agents for foaming plastics