Dispersant and cement admixture
    2.
    发明授权
    Dispersant and cement admixture 失效
    分散剂和水泥外加剂

    公开(公告)号:US5179170A

    公开(公告)日:1993-01-12

    申请号:US381632

    申请日:1989-06-30

    摘要: The dispersant composed of a water-soluble salt of either a copolymer of a component in naphtha oil and maleic anhydride or a partial esterification product of said copolymer has improved dispersing ability and the dispersion containing this dispersant will experience only small changes with time.The cement admixture which is a salt of a copolymer of a component in naphtha oil and an unsaturated dicarboxylic acid anhydride or which has further contains a salt of the product of condensation between formaldehyde and a sulfonated aromatic hydrocarbon containing oil is an effective plasticizer and the cement mix incorporating this admixture has a satisfactory initial flow and will experience only small decrease in flowability over time.

    摘要翻译: PCT No.PCT / JP89 / 00412 Sec。 371日期1989年6月30日第 102(e)日期1989年6月30日PCT提交1989年4月17日PCT公布。 出版物WO90 / 12642 1990年11月1日。由石脑油中的组分的共聚物和马来酸酐的共聚物或所述共聚物的部分酯化产物的水溶性盐组成的分散剂具有改善的分散能力,并且含有该分散剂的分散体将仅经历 小的变化随着时间的流逝。 作为石脑油中的成分和不饱和二羧酸酐的共聚物的盐的水泥混合物,或者还含有甲醛与含磺化芳香烃的油之间的缩合物的盐的盐是一种有效的增塑剂和水泥 掺入这种混合物的混合物具有令人满意的初始流动,并且随着时间的推移,流动性将仅经历微小的降低。

    Vulcanization accelerator- and sulfur-free elastomer rubber glove for clean rooms
    8.
    发明授权
    Vulcanization accelerator- and sulfur-free elastomer rubber glove for clean rooms 有权
    用于洁净室的硫化促进剂和无硫弹性体橡胶手套

    公开(公告)号:US09326557B2

    公开(公告)日:2016-05-03

    申请号:US13877054

    申请日:2011-09-30

    摘要: A glove is formed from elastomer having Mooney viscosity, ML(1+4)(100° C.) of 100-220, that contains 25-30 weight % of acrylonitrile, 62-71 weight % of butadiene and 4-8 weight % of unsaturated carboxylic acid, and does not contain sulfur crosslinking agents or vulcanization accelerators. The unsaturated carboxylic acid comprises a first fraction of substituents and a second fraction of substituents, the first fraction of substituents forming cross-links via bonds with each other, and the second fraction of substituents forming cross-links via bonds with a bivalent metal. Glove properties include thickness 0.05-0.15 mm, swelling ratio 240-320, tensile stress 22-35 MPa, elongation to break 480-620%, and tensile stress at 500% elongation 15-35 MPa. By chlorine treatment of both inner and outer surfaces of the glove, the inner surface has decreased tackiness and the outer surface has increased smoothness. Content of metal and metallic salt impurities and an anion contained in the glove is decreased.

    摘要翻译: 手套由具有门尼粘度ML(1 + 4)(100℃)为100-220的弹性体形成,其含有25-30重量%的丙烯腈,62-71重量%的丁二烯和4-8重量% 的不饱和羧酸,不含硫交联剂或硫化促进剂。 不饱和羧酸包含第一部分取代基和第二部分取代基,第一部分取代基通过键彼此形成交联,第二部分取代基通过与二价金属的键经交联。 手套性能包括厚度0.05-0.15mm,溶胀比240-320,拉伸应力22-35MPa,断裂伸长率480-620%,拉伸应力在500%伸长率15-35MPa。 通过手套的内表面和外表面的氯处理,内表面具有降低的粘性,并且外表面具有增加的平滑度。 金属和金属盐杂质和手套中含有的阴离子的含量降低。

    ELASTOMER RUBBER WHICH DOES NOT USE SULFUR AND VULCANIZATION ACCELERATOR AND ELASTOMER RUBBER PRODUCT
    9.
    发明申请
    ELASTOMER RUBBER WHICH DOES NOT USE SULFUR AND VULCANIZATION ACCELERATOR AND ELASTOMER RUBBER PRODUCT 有权
    不使用硫磺和硫化剂加速器和弹性体橡胶制品的弹性橡胶

    公开(公告)号:US20130198933A1

    公开(公告)日:2013-08-08

    申请号:US13877066

    申请日:2011-09-30

    IPC分类号: C08L9/02 A41D19/00

    摘要: An elastomer composition comprising, an emulsion which comprises 25-30 weight % of acrylonitrile, 62-71 weight % of butadiene and 4-8 weight % of unsaturated carboxylic acid (total 100 weight %), wherein crosslink is formed by a bond through at least a part of substituent which is possessed by said unsaturated carboxylic acid, and residual substituent of at least one part of substituent which is possessed by said unsaturated carboxylic acid is left in state of free, further Mooney viscosity (ML(1+4)(100° C.)) of the crosslinked product is 100-220, wherein thin film gloves composed of said elastomer does not contain sulfur which is a crosslinking agent and sulfur composition which is a vulcanization accelerator, thickness is 0.05-0.15 mm, gloves swelling ratio at gloves formation is 240-320, tensile stress is 22-35 MPa, elongation to break is 480-620% and tensile stress at 500% elongation is 15-35 MPa.

    摘要翻译: 一种弹性体组合物,其包含乳液,其包含25-30重量%的丙烯腈,62-71重量%的丁二烯和4-8重量%的不饱和羧酸(总计100重量%),其中交联通过键 所述不饱和羧酸所具有的至少一部分取代基和所述不饱和羧酸所具有的至少一部分取代基的残留取代基保持游离状态,门尼粘度(ML(1 + 4)( 100℃))为100-220,其中由所述弹性体构成的薄膜手套不含作为交联剂的硫和作为硫化促进剂的硫组分,厚度为0.05〜0.15mm,手套膨胀 手套形成比为240-320,拉伸应力为22-35MPa,断裂伸长率为480-620%,拉伸应力在500%伸长率为15-35MPa。

    Elastomeric rubber and rubber products without the use of vulcanizing accelerators and sulfur
    10.
    发明授权
    Elastomeric rubber and rubber products without the use of vulcanizing accelerators and sulfur 有权
    弹性橡胶和橡胶制品不使用硫化促进剂和硫磺

    公开(公告)号:US09243117B2

    公开(公告)日:2016-01-26

    申请号:US13513242

    申请日:2009-12-01

    摘要: A composition for producing an elastomeric thin film comprising a carboxylated acrylonitrile polybutadiene latex which is vulcanized without the use of conventional sulphur and accelerators thereby reducing the possibility of contacting immediate Type I hypersensitivity and delay Type IV hypersensitivity caused by the presence of natural rubber latex proteins and accelerators respectively. The dipping process for making gloves by using a latex composition provided by: premixing carboxylated acrylonitrile polybutadiene latex with methacrylic acid, or alternatively using a self-crosslinked latex, adding zinc oxide, adjusted to 9 to 10 of the pH level, and diluted with water to obtain 18% to 30% by weight of total solid content; dipping the glove former into the composition to form a layer of thin film of the latex composition on the former; drying the thin latex film on the former and crosslinking the latex film on the former.

    摘要翻译: 用于生产弹性体薄膜的组合物,其包含羧化的丙烯腈聚丁二烯胶乳,其在不使用常规硫和促进剂的情况下硫化,从而降低由天然橡胶胶乳蛋白的存在引起的立即I型超敏反应和延迟IV型超敏反应的可能性, 加速器。 通过使用胶乳组合物制备手套的浸渍方法,其通过以下步骤提供:将羧化丙烯腈聚丁二烯胶乳与甲基丙烯酸预混合,或者使用自交联胶乳,加入调节至pH值为9至10的氧化锌,并用水稀释 得到总固体含量的18〜30重量% 将手套制剂浸入组合物中以在前者上形成一层胶乳组合物的薄膜; 干燥前者上的薄胶乳膜并交联前者上的胶乳膜。