Rubber products that shrink due to the application of energy and hypo-allergenic rubbery products
    41.
    发明授权
    Rubber products that shrink due to the application of energy and hypo-allergenic rubbery products 失效
    由于应用能量和低过敏橡胶产品而使橡胶制品收缩

    公开(公告)号:US06221447B1

    公开(公告)日:2001-04-24

    申请号:US08907100

    申请日:1997-08-06

    IPC分类号: A41D1900

    摘要: Rubbery products having a transition temperature that shrink from a second shape and size toward their original shape and size upon application of energy equivalent in result to raising the temperature of the rubbery product above the transition temperature. Also, hypo-allergenic rubbery products made from polybutadiene and its copolymers, trans-1,4-polybutadiene and its copolymers, synthetic isoprene and its copolymers, or synthetic cis-1,4-polyisoprene and its copolymers. Such rubbery products (not all of which need to be made to shrink) can be used in condoms, gloves, catheters, baby-bottle nipples, and dental dams, to name just a few.

    摘要翻译: 橡胶制品具有从第二形状和尺寸缩小到其原始形状和尺寸的转变温度,其应用能量相当于使橡胶产品的温度升高到转变温度以上。 此外,由聚丁二烯及其共聚物,反式-1,4-聚丁二烯及其共聚物,合成异戊二烯及其共聚物或合成的顺式-1,4-聚异戊二烯及其共聚物制成的低变应性橡胶产品。 这些橡胶制品(并非所有这些都需要收缩)可以用于避孕套,手套,导管,婴儿奶嘴和牙科水坝,仅举几例。

    Polymer blends
    45.
    发明授权
    Polymer blends 失效
    聚合物共混物

    公开(公告)号:US4167544A

    公开(公告)日:1979-09-11

    申请号:US936142

    申请日:1978-08-23

    IPC分类号: C08L9/00 C08L53/00

    摘要: Homogeneous blends are provided comprising a diblock copolymer of isoprene and butadiene and a homopolymer constituent which is polyisoprene, polybutadiene or mixtures of polyisoprene and polybutadiene.

    摘要翻译: 提供了包含异戊二烯和丁二烯的二嵌段共聚物和聚异戊二烯,聚丁二烯或聚异戊二烯和聚丁二烯的混合物的均聚物组分的均匀共混物。