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    • 31. 发明专利
    • CIGARRILLO DE BOQUILLA CON FILTRO VENTILADO.
    • ES244232U
    • 1980-07-16
    • ES244232
    • 1978-05-12
    • OLIN CORPORATION, (UNA CORPORACION DE VIRGINIA)
    • A24D1/04A24D1/02A24D3/04
    • 1.Cigarrillo de boquilla con filtro ventilado, caracterizado porque comprende, en combinación, un filtro encerrado por una capa uniformemente porosa, que tiene una permeabilidad al aire dentro de la gama de 300 a 4.000 unidades, una envoltura de emboquillado que encierra dicho filtro encerrado y que contiene una zona de microperforaciones, siendo el tamaño medio de cada una de dichas perforaciones inferior a 0,01 mm2 en área de las microperforaciones, para permitir que el aire ambiente circule a través de las perforaciones del emboquillado y de la capa porosa, con lo que la producción de monóxido de carbono en el humo precedente del cigarrillo se reduce selectivamente con respecto a los demás componentes del humano, dando como resultado una relación de selectividad de monóxido de carbono a nicotina de por lo menos 3. 2.Cigarrillo, según las reivindicaciones anteriores, caracterizado porque la permeabilidad al aire de la capa poros es de, aproximadamente 3.000 unidades. 3. Cigarrillo, segúnla reivindicación anteriores, caracterizado porque la relación de selectividad es superior a 5. 4.Cigarrillo, según las reivindicaciones anteriores, caracterizado porque la zona de microperforaciones en la envoltura de emboquillamiento comprende una banda de líneas diferentes adyacentes de perforaciones orientadas alrededor de la circunferencia de la boquilla del filtro, encontrándose espaciada dicha banda de perforaciones en una posición intermedia entre los bordes de la envoltura de emboquillado. 5.Cigarrillo, según las reivindicaciones anteriores, caracterizado porque la banda comprende de 4 a 10, líneas de perforaciones que contienen una porosidad de 1.000 a 1.400 unidades de permeabilidad al aire. 6. Cigarrillo, según las reivindicaciones anteriores, caracterizado porque el área de las superficies continuas entre la capa y la envoltura que se ha dejado exenta de adhesivo excede de la anchura de la banda en al menos 1 mm.
    • 32. 发明专利
    • DK135659C
    • 1977-12-05
    • DK634269
    • 1969-11-28
    • OLIN CORPORATION
    • GAMBARDELLA M A
    • B29B7/00B29C39/00B29C39/38B29C39/42C08J9/00C08J9/36
    • Process for preparing a flexible and densified polyurethane foam having a density comprised between approximately 24 and 240 g/l, by means of the steps of a) introducing a polyurethane foam-forming mixture having a free expansion density comprised between approximately 12, 8 and 64.1 g/l in a reaction zone and allow the mixture to expand, thus forming a partially cured honeycomb material; b) applying a compression force to the partially cured alveolar material in a period of time from 0 to about 10 minutes after the expansion is completed, in order to c) thereby reduce the volume of the partially cured alveolar material to the extent of 2/3 and 1/10 approximately of its original volume; and d) removing the compressive force and completing the healing of the compressed cellular material; with the proviso that when the period of time between the termination of the expansion and the application of the compressive force is between 0 and about 2.5 minutes, the partially cured honeycomb material is maintained at an ambient temperature comprised between approximately 7º. And 204ºC during said period; when said period of time is comprised between 2.5 and 5 minutes approximately, the partially cured honeycomb material maintained at a partially cured temperature is maintained at an ambient temperature comprised between approximately 7º and 93ºC during said period; and when said period is comprised between approximately 5 and 10 minutes, the partially cured honeycomb material is maintained at an ambient temperature comprised between approximately 7º and 38ºC during said period; thus forming a low density polyurethane foam; the method including the step comprising applying said compressive force to the partially cured honeycomb material for a period of time between about 0.1 and 10 minutes, whereby the thickness of the outer foam layer is controlled. (Machine-translation by Google Translate, not legally binding)
    • 33. 发明专利
    • DK135413C
    • 1977-09-26
    • DK634369
    • 1969-11-28
    • OLIN CORPORATION
    • ZOCCO N CCOHEN S I
    • C08J9/00
    • Flexible polyurethane foams of density 1.5-15 lb/ft3 are made by (1) allowing a polyurethane foam-forming mixture to rise and produce a partially cured foam of density 0.8-4 lb/ft3, (2) within 0-10 mm of the rise, compressing the foam and reducing it to between 2/3 and 1/10 of its original volume, and (3) removing the compressive force and completing the cure of the foam, the temperature of the foam during compression being maintained at (a) 45-400 degrees F when compression takes place within 0-2.5 min of the rise, (b) 45-200 degrees F when compression takes place within 2.5-5 min. of the rise, and (c) 45-110 degrees F when compression takes place within 5-10 min of the rise. The process gives uniformly densified foams which are suitable for backing carpets and floor tiles, and as packaging and insulating materials.
    • 35. 发明专利
    • ES196782Y
    • 1975-08-16
    • ES196782
    • 1971-07-31
    • OLIN CORPORATION
    • B29C44/08F42B7/08F42B
    • A one-piece plastic wad structure for use with a shotshell, the wad structure having a projectile-receiving pocket, an obturating pocket, and a transverse wall integral with the pockets and separating one pocket from the other. The projectile pocket and obturating pocket have side walls of solid plastic, and at least a portion of the transverse wall is foamed plastic. The transverse wall is of substantial thickness so as to cushion the shot charge when a cartridge containing the wad is fired. The wad structure is formed by injecting a molten mixture of a resinous material and a foaming agent into a mold cavity, cooling the injected mixture so as to partially solidify the mixture in the cavity, and then reducing pressure in the cavity by enlarging its volume to permit the transverse wall portion of the injected mixture to foam in situ.