FUSIBLE BICOMPONENT SPANDEX
    28.
    发明申请

    公开(公告)号:US20160122907A1

    公开(公告)日:2016-05-05

    申请号:US14952192

    申请日:2014-05-29

    Abstract: Included are segmented polyurethane elastic fibers or spandex fibers, capable of bonding to polymer fiber such as nylon or polyamide fibers, in addition to bonding to itself, for apparel textile applications. More particularly the invention relates to bicomponent spandex fibers, with a heat resistant core and a heat sensitive sheath, spun from polymer solutions. The nylon fabrics containing such spandex fibers have enhanced stretch performance and improved surface appearance after heat treatment to activate the fusing and bonding between nylon fibers and spandex fibers.

    Abstract translation: 包括的是分段聚氨酯弹性纤维或氨纶纤维,除了结合自身之外,还可以粘合到诸如尼龙或聚酰胺纤维的聚合物纤维上,用于服装纺织品应用。 更具体地,本发明涉及由聚合物溶液纺丝的双组分氨纶纤维,其具有耐热芯和热敏护套。 含有这种氨纶纤维的尼龙织物在热处理后具有增强的拉伸性能和改善的表面外观,以激活尼龙纤维和氨纶纤维之间的熔合和粘合。

    PROCESS FOR PRODUCING PENTENENITRILES
    29.
    发明申请
    PROCESS FOR PRODUCING PENTENENITRILES 有权
    生产苯胺的方法

    公开(公告)号:US20150314279A1

    公开(公告)日:2015-11-05

    申请号:US14649593

    申请日:2013-12-05

    Inventor: Thomas E. VOS

    Abstract: The invention provides methods useful in the industrial scale process for hydrocyanation of butadiene to adiponitrile for recycle of unwanted byproduct 2-methyl-3-butenenitrile (2M3BN) by conversion to process intermediate pentenenitrile. The invention provides a process for generating catalysts useful for carrying out the hydrocyanation of butadiene to adiponitrile, the process comprising contacting the 2M3BN and a solution of a nickel-ligand catalyst in cis-2-pentenenitrile (cis-2PN), trans-2-pentenenitrile (trans-2PN), or a mixture thereof. The improved methods of the invention can provide improved catalyst solubility for bidentate ligands without a requirement for a Lewis acid catalyst promoter such as zinc chloride to be present.

    Abstract translation: 本发明提供了用于将丁二烯氢化成己二腈的工业规模工艺中用于通过转化为中间体戊烯腈再循环不需要的副产物2-甲基-3-丁烯腈(2M 3 BN)的方法。 本发明提供了一种用于产生用于进行丁二烯至己二腈的氢氰化的催化剂的方法,该方法包括使2M3BN与镍 - 配位体催化剂在顺式-2-戊烯腈(顺式-2PN),反式-2- 戊烯腈(反式-2PN)或其混合物。 本发明的改进方法可以提供改进的二齿配体的催化剂溶解度,而不需要存在路易斯酸催化剂促进剂如氯化锌。

    PROCESS FOR STABILIZING HYDROCYANATION CATALYST
    30.
    发明申请
    PROCESS FOR STABILIZING HYDROCYANATION CATALYST 有权
    稳定化学催化剂的方法

    公开(公告)号:US20150148556A1

    公开(公告)日:2015-05-28

    申请号:US14404037

    申请日:2013-05-24

    Abstract: The invention provides a method of forming a phosphonate diester compound from a ligand hydrolysis product (LHP) of a phosphite ligand used in a nickel-phosphite hydrocyanation catalyst, such as for conversion of 3-pentenenitrile to adiponitrile, which serves to climinate acidic LHP compound for a hydrocyanation reaction milieu where the acidic LHP can catalyze further catalyst ligand destruction. The invention further provides phosphonate disester compounds prepared by alkylation of diarylphosphite LHP in the presence of a nickel-phosphite catalyst comprising a bidentate ligand, and a continuous hydrocyanation process for production of adiponitrile wherein catalyst ligand breakdown is inhibited through inactivation of ligand hydrolysis products towards further breakdown. A method of stabilizing a hydrocyanation catalyst is provided.

    Abstract translation: 本发明提供了一种由亚磷酸氢氰化催化剂中使用的亚磷酸酯配位体的配位体水解产物(LHP)形成膦酸二酯化合物的方法,例如将3-戊烯腈转化成己二腈,其用于酸化LHP化合物 对于氢化反应环境,其中酸性LHP可以催化另外的催化剂配体破坏。 本发明还提供了在含有二齿配位体的亚磷酸二氢镍催化剂的存在下烷基化亚磷酸二氢钠LHP制备的膦酸酯二酯化合物,以及用于生产己二腈的连续氢氰化方法,其中通过使配体水解产物失活而进一步抑制催化剂配体分解 分解。 提供了一种稳定氢氰化催化剂的方法。

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