Blow-molded foam and process for producing the same
    2.
    发明授权
    Blow-molded foam and process for producing the same 有权
    吹塑泡沫及其制造方法

    公开(公告)号:US06432525B1

    公开(公告)日:2002-08-13

    申请号:US09554514

    申请日:2000-05-17

    IPC分类号: B32B300

    摘要: In the present invention, for the production of a blow-molded foam, there is used a base resin which is mainly composed of a polypropylene resin and has, at 230° C., a melt tension (MT) of 10 gf or over and a melt flow rate (MFR) of 0.5 g/10 minutes or over. A foaming agent is added to the base resin, followed by melt kneading by means of an extruder under high temperature and high pressure conditions to provide a foamable melt. This melt is subjected to extrusion from a circular die 5 and expanded to form a cylindrical foamed parison 4. Thereafter, molds 6, 6 are clamped, and the parison 4 in a softened condition is placed in the molds 6, 6, and a pressurized gas is blown into the parison 4 from a gas blowing port 7 for blow molding in the form of a hollow shape conforming to the mold profile to produce a blow-molded foam.

    摘要翻译: 在本发明中,为了制造吹塑成型泡沫,使用主要由聚丙烯树脂构成的基础树脂,在230℃下,熔融张力(MT)为10gf以上, 熔体流动速率(MFR)为0.5g / 10分钟以上。 向基础树脂中添加发泡剂,然后在高温高压条件下用挤出机进行熔融混炼,得到发泡体。 将该熔体从圆形模具5中挤出并膨胀以形成圆筒形的发泡型坯4.此后,将模具6,6夹紧,将软化条件下的型坯4放置在模具6,6中, 将气体从用于吹塑成型的气体吹出口7吹入型坯4,其形状为符合模型轮廓的中空形状,以产生吹塑泡沫。

    Prevention of damages of construction materials by termites
    3.
    发明授权
    Prevention of damages of construction materials by termites 有权
    防止白蚁对建筑材料的损坏

    公开(公告)号:US06256937B1

    公开(公告)日:2001-07-10

    申请号:US09212399

    申请日:1998-12-16

    IPC分类号: A01K300

    摘要: Prevention of damage of wooden construction materials of a building by termites by laying one or more panels each having a polycarbonate resin foam layer on the ground on which the building is constructed or by arranging such panels on surfaces of continuous footing of the building or of vertical concrete walls of the building. The concrete wall may be formed using modular concrete form structure units each having a pair of opposing side panels, with each side panel having a polycarbonate foam layer.

    摘要翻译: 通过在建筑物的建筑物的地面上铺设一块或多块具有聚碳酸酯树脂泡沫层的地板,或通过在建筑物的连续基面或垂直的表面上布置这些面板来防止建筑物的木建筑材料受到白蚁的损坏 建筑物的混凝土墙壁。 可以使用具有一对相对侧板的模块化混凝土结构单元来形成混凝土壁,每个侧板具有聚碳酸酯泡沫层。