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    • 3. 发明申请
    • DIP Forming Latex Composition and DIP Formed Article
    • DIP形成乳胶组合物和DIP形成物品
    • US20090105424A1
    • 2009-04-23
    • US11920635
    • 2006-05-18
    • Kazumi KodamaShinji Kato
    • Kazumi KodamaShinji Kato
    • C08L9/10C08F136/04
    • B29C41/14C08K5/14C08L21/02C08L13/02
    • A dip-forming latex composition comprising a conjugated diene rubber latex and an organic peroxide, wherein the residual effective activity of organic peroxide defined as the ratio of organic peroxide retaining reactivity to the whole organic peroxide contained in the latex composition is 35% or higher. The invention provides a dip-formed article, which exhibits good softness of touch and comfortable fittingness and excellent in tensile strength and resistance to flexing fatigue; which itself hardly suffers coloration especially when the article thereof is worn as a glove for continuous operation for a long time and is hard to reduce adhesiveness and following characteristics to hand while wearing it; and a dip-forming latex composition capable to give such an article by dip-forming thereof.
    • 包含共轭二烯橡胶胶乳和有机过氧化物的浸渍形成胶乳组合物,其中定义为有机过氧化物保留反应性与胶乳组合物中所含全部有机过氧化物的比例的有机过氧化物的残留有效活性为35%或更高。 本发明提供了一种浸渍成型制品,其具有良好的触感和舒适的贴合性,并且拉伸强度和抗挠曲疲劳性能优异。 其本身几乎不会着色,特别是当其制品作为长时间连续操作的手套而磨损时,并且在穿着时难以降低粘合性和手感特性; 以及能够通过其浸渍形成得到这种制品的浸渍形成胶乳组合物。
    • 5. 发明申请
    • Dip-Forming Composition and Dip-Formed Article
    • 浸蘸成分和浸成型
    • US20080051498A1
    • 2008-02-28
    • US11791662
    • 2005-11-28
    • Kazumi Kodama
    • Kazumi Kodama
    • C08K5/04
    • C08J5/02B29C41/14C08J2313/02C08J2321/00C08K5/14C08L13/02C08L21/02
    • A dip-forming composition is provided, which can give a dip-formed article that exhibits good softness of touch and comfortable fittingness, an excellent tensile strength and a high flexural fatigue resistance, and which is less likely to color even when worn and subjected to working for a long time period. The above problem is solved by the dip-forming composition which is obtained by converting an organic peroxide, which is solid at 30° C. under normal pressure, to an aqueous dispersion in the presence of a surfactant and a polymeric protective colloid, adding the dispersion to a conjugated diene rubber latex, and aging the mixture. The organic peroxide is preferably dibenzoyl peroxide or dilauroyl peroxide.
    • 提供了一种浸渍成型组合物,其可以形成具有良好的触感柔软度和舒适贴合性,优异的拉伸强度和高抗弯曲疲劳性的浸渍成型制品,并且即使在磨损时也不太可能着色并经受 工作了很长时间。 上述问题是通过在表面活性剂和聚合物保护胶体存在下将在常压下在30℃下固体的有机过氧化物转化成水性分散体而获得的浸渍形成组合物来解决的, 分散到共轭二烯橡胶胶乳中,并使混合物老化。 有机过氧化物优选为过氧化苯甲酰或过氧化二月桂酰。
    • 8. 发明申请
    • Dip-forming latex, dip-forming composition and dip-formed article
    • 浸渍成型胶乳,浸渍成型组合物和浸渍成型制品
    • US20080255314A1
    • 2008-10-16
    • US11882742
    • 2007-08-03
    • Hisanori OtaShunjin AiharaKazumi Kodama
    • Hisanori OtaShunjin AiharaKazumi Kodama
    • C08F236/08C08F236/06C08F220/42C08F220/04
    • C08L13/02A61B42/00C08F236/12C08F2/22
    • A dip-forming latex obtained by copolymerization of (a) 50-89.5 weight parts of a conjugated diene monomer, (b) 10-40 weight parts of an ethylenically unsaturated nitrile monomer, (c) 0.5-10 weight parts of an ethylenically unsaturated acid monomer and (d) 0-20 weight parts of other copolymerizable ethylenically unsaturated monomer (the total of these monomers is 100 weight parts), wherein the copolymerization is initiated with a monomer mixture comprising at least 80 wt. % of (a), at least 50 wt. % of (b), 10-90 wt. % of (c) and least 80 wt. % of (d), and thereafter, the remainders of monomers are added to a polymerization system to continue copolymerization. This latex gives a dip-formed article exhibiting good softness of touch, high tensile strength and good retention of close fittingness.
    • 通过(a)50-89.5重量份的共轭二烯单体,(b)10-40重量份的烯键式不饱和腈单体,(c)0.5-10重量份的烯属不饱和腈单体共聚获得的浸渍形成胶乳 酸性单体和(d)0-20重量份的其它可共聚的烯属不饱和单体(这些单体的总量为100重量份),其中共聚合是由包含至少80重量% (a)的%,至少50重量% (b)的%,10-90重量% (c)%和最少80wt。 %的(d),然后将剩余的单体加入到聚合体系中以继续共聚。 该胶乳产生显示良好的触感柔软度,高拉伸强度和良好保持贴合性的浸渍成型制品。
    • 9. 发明授权
    • Dip-forming latex, dip-forming composition and dip-formed article
    • 浸渍成型胶乳,浸渍成型组合物和浸渍成型制品
    • US07273906B2
    • 2007-09-25
    • US10505734
    • 2003-02-27
    • Hisanori OtaShunjin AiharaKazumi Kodama
    • Hisanori OtaShunjin AiharaKazumi Kodama
    • C08L9/04C08L33/02C08L33/18
    • C08L13/02A61B42/00C08F236/12C08F2/22
    • A dip-forming latex obtained by copolymerization of (a) 50-89.5 weight parts of a conjugated diene monomer, (b) 10-40 weight parts of an ethylenically unsaturated nitrile monomer, (c) 0.5-10 weight parts of an ethylenically unsaturated acid monomer and (d) 0-20 weight parts of other copolymerizable ethylenically unsaturated monomer (the total of these monomers is 100 weight parts), wherein the copolymerization is initiated with a monomer mixture comprising at least 80 wt. % of (a), at least 50 wt. % of (b), 10-90 wt. % of (c) and least 80 wt. % of (d), and thereafter, the remainders of monomers are added to a polymerization system to continue copolymerization. This latex gives a dip-formed article exhibiting good softness of touch, high tensile strength and good retention of close fittingness.
    • 通过(a)50-89.5重量份的共轭二烯单体,(b)10-40重量份的烯键式不饱和腈单体,(c)0.5-10重量份的烯属不饱和腈单体共聚获得的浸渍形成胶乳 酸性单体和(d)0-20重量份的其它可共聚的烯属不饱和单体(这些单体的总量为100重量份),其中共聚合是由包含至少80重量% (a)的%,至少50重量% (b)的%,10-90重量% (c)%和最少80wt。 %的(d),然后将剩余的单体加入到聚合体系中以继续共聚。 该胶乳产生显示良好的触感柔软度,高拉伸强度和良好保持贴合性的浸渍成型制品。
    • 10. 发明申请
    • Dip-forming composition, dip-formed article and process for making same
    • 浸渍成型组合物,浸渍成型制品及其制造方法
    • US20070083013A1
    • 2007-04-12
    • US11634838
    • 2006-12-07
    • Hisanori OtaTomomi OnitakeKazumi Kodama
    • Hisanori OtaTomomi OnitakeKazumi Kodama
    • C08F236/00
    • C08L13/02C08F236/12C08F2/38
    • A dip-forming composition comprising a conjugated diene rubber latex prepared by copolymerizing 30-90 wt. % of a conjugated diene monomer, 0.1-20 wt. % of an ethylenically unsaturated acid monomer and 0-69.9 wt. % of other copolymerizable ethylenically unsaturated monomer, wherein a copolymer constituting the conjugated diene rubber latex exhibits a content insoluble in methyl ethyl ketone of not larger than 30 wt. % at a latex pH value of 10, and the dip-forming composition has a pH value of at least 8.5 and is substantially free from a sulfur-containing vulcanizer, a vulcanization accelerator for the sulfur-containing vulcanizer, and zinc oxide. A dip-formed article made therefrom, which has been crosslinked with a water-soluble polyvalent metal salt used as a coagulant for latex, has an extremely reduced number of pinholes, good softness to touch, high tensile strength and high fatigue resistance to repeated use.
    • 一种浸渍形成组合物,其包含通过共聚合30-90重量份的共轭二烯橡胶胶乳, %的共轭二烯单体,0.1-20wt。 %的烯属不饱和酸单体和0-69.9wt。 %的其它可共聚的烯键式不饱和单体,其中构成共轭二烯橡胶胶乳的共聚物表现出不溶于甲基乙基酮的含量不大于30wt。 %的胶乳pH值为10,并且浸渍形成组合物的pH值至少为8.5,并且基本上不含硫含硫硫化剂,含硫硫化剂的硫化促进剂和氧化锌。 由用作胶乳凝聚剂的水溶性多价金属盐交联的由其制成的浸渍制品具有极少数的针孔,良好的触感柔软性,高拉伸强度和高反复使用的耐疲劳性 。