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    Polyurethane with improved tear strength
    94.
    发明授权
    Polyurethane with improved tear strength 有权

    公开(公告)号：US11447596B2

    公开(公告)日：2022-09-20

    申请号：US16462977

    申请日：2017-12-22

    申请人： BASF SE

    发明人： Sebastian Richter ,  Zeljko Tomovic ,  Kathrin Cohen

    IPC分类号： C08G18/66 ,  C08G18/32 ,  C08G18/42 ,  C08G18/73 ,  C08G18/76 ,  B29C45/00 ,  C08G18/75 ,  B29K67/00

    摘要： The present invention relates to a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition, a chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 1500 to 2500 g/mol and has at least one aromatic polyester block (B1). The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.

    PROCESS FOR PRODUCING MICROPARTICLES LADEN WITH A VOLATILE ORGANIC ACTIVE
    95.
    发明申请
    PROCESS FOR PRODUCING MICROPARTICLES LADEN WITH A VOLATILE ORGANIC ACTIVE 有权

    公开(公告)号：US20220288549A1

    公开(公告)日：2022-09-15

    申请号：US17626134

    申请日：2020-07-10

    申请人： BASF SE

    发明人： OSCHMANN Dieter Bernd ,  Dominik GARELLA ,  Miika FRANCK ,  Wolfgang KRAUSE ,  Thorsten MOHR

    IPC分类号： B01J13/12 ,  B01J13/20

    摘要： The present invention relates to a process for producing microparticles laden with at least one active, wherein the microparticles are formed from a thermoplastic organic, polymeric material and in the unladen state, in their interior, have at least one cavity connected via pores to the surface of the microparticles, wherein (a) a composition of unladen microparticles are impregnated with a liquid comprising the active, whereby laden microparticles are obtained, which contain in the interior cavity the liquid, and (b) subjecting the laden microparticles to thermal treatment by passing a stream of free flowing laden microparticles in a carrier gas through a heated zone at a temperature of at least 20 K, in particular at least 40 K, e.g. 20 to 250 K especially 40 to 200 K above the softening temperature of the thermoplastic organic polymeric material, where the average residence time of the laden microparticles in the heated zone is not more than 60 s, in particular not more than 30 s, especially not more than 20 s or not more than 10 s, e.g. in the range of 0.1 to 60 s, in particular in the range of 0.1 to 30 s, more particularly in the range of 0.5 to 20 s and especially in the range of 1 to 10 s. The present invention further relates to compositions of microparticles filled with at least one active, in particular with at least volatile organic active, which is obtainable by a process of the invention, and to the use thereof, especially in a product selected from perfumes, washing and cleaning compositions, cosmetic compositions, personal care compositions, hygiene articles, foods, food supplements, fragrance dispensers and fragrances. The present invention further relates to products comprising an inventive composition of microparticles filled with at least one active, in particular with at least one volatile organic active, and to the use thereof, especially for controlled release of actives of low molecular weight and specifically for controlled release of aroma chemicals.

    ALLOPHANATE BASED DISPERSING AGENT
    99.
    发明申请
    ALLOPHANATE BASED DISPERSING AGENT 有权

    公开(公告)号：US20220275146A1

    公开(公告)日：2022-09-01

    申请号：US17626842

    申请日：2020-07-17

    申请人： BASF SE

    发明人： Andreas GERNANDT ,  Huiguang KOU ,  Steffen ONCLIN ,  Clemens AUSCHRA ,  Johannes Hermann WILLENBACHER

    IPC分类号： C08G18/78 ,  C08G18/81 ,  C08G18/83 ,  C09D175/04

    摘要： The presently claimed invention is directed to a copolymer obtained by reacting at least one isocyanate (A) comprising at least one allophanate group and at least one active double bond with at least one isocyanate reactive component (B) to form an intermediate product (C); and reacting the intermediate product (C) with at least one active double bond reactive component (D) to obtain the copolymer which can be used as dispersant. The at least one isocyanate reactive component (B) is selected from the group consisting of monofunctional polyether amine (B1), monofunctional polyether alcohol (B2), C6-C30 monofunctional alcohol (B3) and monofunctional polyester alcohol (B4).