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    Enhanced process for the production of expanded PVC and plastic materials based on expanded PVC obtained therewith
    2.
    发明授权
    Enhanced process for the production of expanded PVC and plastic materials based on expanded PVC obtained therewith 有权
    用于生产基于由其获得的膨胀PVC的膨胀PVC和塑料材料的增强方法

    公开(公告)号：US08492446B2

    公开(公告)日：2013-07-23

    申请号：US13697516

    申请日：2011-06-07

    申请人： Leone Lauri ,  Eva-Lotta Magdalena Petersson ,  Raffaela Bressan ,  Samia Mariam Hamed

    发明人： Leone Lauri ,  Eva-Lotta Magdalena Petersson ,  Raffaela Bressan ,  Samia Mariam Hamed

    IPC分类号： C08J9/32 ,  B29C44/02

    CPC分类号： C08J3/246 ,  B29C44/02 ,  B29C44/0415 ,  B29C44/3411 ,  B29K2027/06 ,  B29K2105/04 ,  B29K2105/165 ,  C08J9/0061 ,  C08J9/04 ,  C08J9/32 ,  C08J2327/06 ,  C08J2375/00 ,  C08J2427/06

    摘要： A process for the production of expanded PVC of the type includes heating a mass of polymeric mixture inside a closed mold; controlling the expansion of the mass in an environment having a constant volume defined by the closed mold, control being performed by the presence, in the mass of polymeric mixture, of microparticles of a compressible material, suitable for being contracted, under the action of the pressure generated by the formation and expansion of microcells of expanding gas in the same mass, from an initial form having a larger volume, to a form having a smaller volume; and expanding the microparticles, from their configuration to the initial configuration, the density of the expanded material thus obtained being determined by the contemporary presence of both microcells of expanding gas and the microparticles in their configuration having a larger volume.

    摘要翻译： 用于生产这种类型的膨胀PVC的方法包括在封闭模具内加热聚合物混合物; 在由闭合模具限定的具有恒定体积的环境中控制质量的膨胀，控制是通过在聚合物混合物的质量下存在适合于收缩的可压缩材料的微粒， 由具有较大体积的初始形式的相同质量的膨胀气体的微细胞的形成和膨胀产生的压力形成具有较小体积的形式; 并且将微粒从其构型扩展到初始构型，由此获得的膨胀材料的密度由发泡气体的微细胞和具有较大体积的微结构的当前存在来确定。

    Process for producing a foamed polymer endowed with high resistance to solvents and high temperature resistance
    7.
    发明授权
    Process for producing a foamed polymer endowed with high resistance to solvents and high temperature resistance 失效
    制造具有高耐溶剂性和耐高温性的发泡聚合物的方法

    公开(公告)号：US5216039A

    公开(公告)日：1993-06-01

    申请号：US810501

    申请日：1991-12-19

    申请人： Leone Lauri

    发明人： Leone Lauri

    IPC分类号： C08G18/63 ,  C08G18/67 ,  C08J9/10 ,  C08L75/00

    CPC分类号： C08J9/102 ,  C08G18/637 ,  C08G18/6755 ,  C08L75/00 ,  C08G2101/00 ,  C08J2375/04

    摘要： A process for producing a foamed polymer comprises the steps of: mixing, in a dissolver, a mixture constituted by at least one isocyanate and a first unsaturated anhydride, which is charged to the dissolver in the liquid state and at a relatively high temperature; progressively cooling said mixture, with continued stirring, until a temperature not higher than 22.degree. C. is reached; adding to the mixture, with the latter being still kept with continuous stirring, a second unsaturated anhydride, at least one foaming agent, a vinylidene compound, poly(vinyl chloride) and a heat stabilizer; maintaining the mixture with continuous stirring, at said temperature, until a paste is obtained which is poured, after being preliminarily filtered, into a mould or container; curing said paste by charging the container to an oven at atmospheric pressure, and at a temperature not higher than 80.degree. C.; completing the curing of the paste-like mixture under pressure, by increasing temperature up to 180.degree. C. and subsequent cooling, until partially foamed germs are obtained; and completing the germ foaming process, by heating.

    摘要翻译： 发泡聚合物的制造方法包括以下步骤：在溶解器中混合由至少一种异氰酸酯和第一不饱和酸酐组成的混合物，其以液态和相对高的温度加入到溶解器中; 逐渐冷却所述混合物，继续搅拌，直到达到不高于22℃的温度; 加入到混合物中，后者保持连续搅拌，第二不饱和酸酐，至少一种发泡剂，亚乙烯基化合物，聚（氯乙烯）和热稳定剂; 在所述温度下，在连续搅拌下保持混合物，直到得到糊状物，将其预先过滤后，倒入模具或容器中; 通过在大气压下将容器装入烘箱中并在不高于80℃的温度下固化所述糊状物; 在压力下完成糊状混合物的固化，通过将温度升高至180℃并随后冷却，直到获得部分发泡的细菌; 并通过加热完成胚芽发泡过程。

    Expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity
    8.
    发明授权
    Expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity 失效
    膨胀聚合物产品具有高变形温度，高阻燃性和低烟雾毒性和不透明度

    公开(公告)号：US5336694A

    公开(公告)日：1994-08-09

    申请号：US980426

    申请日：1992-11-23

    申请人： Leone Lauri

    发明人： Leone Lauri

    IPC分类号： C08G18/62 ,  C08J9/00 ,  C08J9/10

    CPC分类号： C08J9/0061 ,  C08G18/625 ,  C08G2101/00 ,  C08J2375/04 ,  C08J2427/00

    摘要： An expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity comprises, in combination:between 18% and 25% of a mixture of at least two isocyanates;between 8% and 11% of a styrene and maleic anhydride mixture;between 19% and 42% of a PVC resin in emulsion form;between 4% and 7% of at least one expanding agent;between 0.5% and 1% of at least one temperature stabilizer;between 16% and 40% of TiO.sub.2.Said product is used particularly in sea, ground and air transport, and in numerous constructional applications in which the materials must combine high technical characteristics with adequate lightness.

    摘要翻译： 具有高变形温度，高阻燃性和低烟毒性和不透明度的膨胀聚合物产物组合包含至少两种异氰酸酯的混合物的18％至25％; 8％至11％的苯乙烯和马来酸酐混合物; 19％至42％的乳液形式的PVC树脂; 4％至7％的至少一种发泡剂; 至少一种温度稳定剂的0.5％至1％之间; 介于16％至40％之间的TiO2。 所述产品特别用于海运，地面和空运，以及许多建筑应用中，材料必须结合高技术特性和足够的亮度。

    Neither toxic nor environmentally noxious foamed-polymer products
    9.
    发明授权
    Neither toxic nor environmentally noxious foamed-polymer products 失效
    无毒或无环境有害泡沫聚合物产品

    公开(公告)号：US5352710A

    公开(公告)日：1994-10-04

    申请号：US884737

    申请日：1992-05-15

    申请人： Leone Lauri

    发明人： Leone Lauri

    IPC分类号： C08J9/06 ,  C08G18/08 ,  C08G101/00 ,  C08J9/10 ,  C08K3/22 ,  C08K5/09 ,  C08L27/06 ,  C08F14/06

    CPC分类号： C08J9/10 ,  C08J2201/026 ,  C08J2327/06 ,  C08J2351/00

    摘要： A cellular, foamed-polymer product is disclosed, which is constituted by a mixture comprising: at least one isocyanate, at least one anhydride, at least one vinylidene compound, poly-(vinyl chloride), at least one foaming agent, a heat stabilizer, calcium stearate and zinc stearate.The product production scraps and processing wastes and residues are not riskful for health and environment, and can be disposed of as "waste similar to solid municipal waste".

    摘要翻译： 公开了一种细胞泡沫聚合物产品，其由包含以下物质的混合物构成：包含至少一种异氰酸酯，至少一种酸酐，至少一种亚乙烯基化合物，聚（氯乙烯），至少一种发泡剂，热稳定剂 ，硬脂酸钙和硬脂酸锌。 产品生产废料和加工废物和残留物对健康和环境不具危害性，可以作为“与固体城市垃圾相似的废物”处理。