Low temperature process for the preparation of an asphalt mix composition

    公开(公告)号:AU2021209790A1

    公开(公告)日:2022-08-11

    申请号:AU2021209790

    申请日:2021-01-15

    Applicant: BASF SE

    Abstract: The present invention relates to a process for the preparation of an asphalt mix composition, said process comprising: (1) providing an asphalt composition and heating said composition to a temperature in the range of from 150 to 175 °C; (2) providing a granular material and heating said material to a temperature in the range of from 130 to 170 °C; (3) providing one or more thermosetting reactive compounds; (4) adding the one or more thermosetting reactive compounds provided in (3) to the asphalt composition obtained in (1) and homogenizing the mixture for a duration in the range of from 2 to 180 s; (5) adding the mixture obtained in (4) to the granular material obtained in (2) and homogenizing the slurry for a duration in the range of from 5 to 180 s, wherein the temperature of the resulting asphalt mix composition is in the range of from 130 to 155°C. Further, the present invention relates to an asphalt mix composition obtained or obtainable by said process and its use as well as a process for asphalting at reduced laydown temperatures.

    Compuesto de poliuretano-poliisocianurato con excelentes propiedades mecánicas

    公开(公告)号:ES2837253T3

    公开(公告)日:2021-06-29

    申请号:ES16723122

    申请日:2016-05-18

    Applicant: BASF SE

    Abstract: Un procedimiento para la preparacion de compuestos de poliuretano-poliisocianurato, en el que se mezcla a) poliisocianato con b) una mezcla obtenible mediante la introduccion de una sal de metal alcalino o alcalinoterreo en un compuesto que contiene grupos uretano R-NH-CO-O-R', donde R no es igual a hidrogeno y no es igual a COR", c) uno o mas compuestos que contienen grupos epoxido y d) uno o mas compuestos con al menos dos grupos reactivos con isocianato, que contienen compuestos con NH2 y/o grupos OH primarios y opcionalmente e) materiales de carga y otros aditivos para obtener una mezcla de reaccion y se deja reaccionar para obtener el compuesto de poliuretano poliisocianurato, en cuyo caso el contenido molar de iones de metales alcalinos y/o alcalinoterreos en la mezcla de reaccion por mol de grupo uretano en el compuesto (b) es de 0,0001 a 3,5 y el indice de isocianato es superior a 150

    LOW-EMISSION, STABILIZED POLYURETHANE

    公开(公告)号:MY170697A

    公开(公告)日:2019-08-26

    申请号:MYPI2015003000

    申请日:2014-06-10

    Applicant: BASF SE

    Abstract: The present invention relates to a process for preparing polyurethanes, in which (a) polyisocyanate, (b) polymeric compounds with groups that are reactive towards isocyanates, (c) catalysts, (d) 0.01 to 1 % by weight of an aliphatic hydrocarbon (d1) having 2 to 15 carbon atoms which comprise at least one heteroatom selected from the group consisting of oxygen, nitrogen and sulfur, and at least one chlorine or bromine atom, and/or phosphoric acid ester (d2), (e) antioxidants and/or light stabilizers and optionally (f) blowing agents, (g) chain extenders and/or crosslinking agents and (h) auxiliaries and/or additives are mixed to give a reaction mixture and the reaction mixture is allowed to fully react to give the polyurethane, where the phosphoric acid ester corresponds to the general formula (R1-0)3-P=O, where the three radicals R1, independently of one another, are organic radicals which comprise one or more phenyl groups, one or more phosphoric acid groups (polyalkyl phosphate with ethylene oxide) or esters thereof and/or one or more atoms selected from the group consisting of nitrogen, oxygen, fluorine, chlorine and bromine. Furthermore. the present invention relates to polyurethanes obtainable by a process according to the invention and to the use of these polyurethanes in the interior of means of transport.

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