Abstract:
A process including the steps of: providing a planetary roller extruder having a plurality of compounding sections including a main spindle surrounded by and intermeshed with a plurality of planetary spindles; introducing monomers and initiator into a first compounding section; producing a homogeneous composition; heating the composition to initiate free-radical polymerization; introducing monomers and initiator into one or more of the remaining compounding sections and continuing the polymerization; discharging the polymerized composition; and optionally, taking a portion of the composition discharged from the planetary roller extruder and returning it to the first compounding section.
Abstract:
processos de polimerização. processo para produzir polímero e mais particularmente adesivo, usando um reator de circuito de recirculação. numa modalidade, o reator inclui uma ou mais misturadores para misturar carga com o material polimerizado recirculando no reator. noutra modalidade, um extrusor de rolo planetário (pre) pode ser usado para este fim. ainda noutra modalidade, pode ser usada uma combinação de um ou mais misturadores estáticos e um ou mais pres.
Abstract:
Disclosed is a tape including a substrate having an adhesive layer applied thereto and an edge coating. The substrate and the adhesive together provide at least one masking edge where the edge coating is applied. The edge coating includes a lipophilic agent, a flocculating agent, or combinations thereof. The edge coating provides the tape with enhanced masking ability by preventing paints, varnishes, paint strippers, and other coating compositions from infiltrating the tape substrate or the interface between the tape and an adherend.
Abstract:
Disclosed is a tape including a substrate having an adhesive layer applied thereto and an edge coating The substrate and the adhesive together provide at least one masking edge where the edge coating is applied The edge coating includes a flocculating agent, wherein the flocculating agent is an ionic polymer. The edge coating provides the tape with enhanced masking ability by preventing paints, varnishes, paint strippers, and other coating compositions from infiltrating the tape substrate or the interface between the tape and an adherend
Abstract:
A process for producing polymer and more particularly adhesive using a recirculating loop reactor. In one embodiment the reactor includes one or more mixers to mix feed stock with the polymerized material recirculating in the reactor. In another embodiment a planetary roller extruder (PRE) may be used for this purpose. In still another embodiment, a combination of one or more static mixers and one or more PREs may be used.
Abstract:
A process for producing polymer and more particularly adhesive using a re circulating loop reactor. In one embodiment the reactor includes one or more mixers to mix feed stock with the polymerized material recirculating in the reactor. In another embodiment a planetary roller extruder (PRE) may be use d for this purpose. In still another embodiment, a combination of one or mor e static mixers and one or more PREs may be used.
Abstract:
A process including the steps of: providing a planetary roller extruder having a plurality of compounding sections including a main spindle surrounded by and intermeshed with a plurality of planetary spindles; introducing monomers and initiator into a first compounding section; producing a homogeneous composition; heating the composition to initiate free-radical polymerization; introducing monomers and initiator into one or more of the remaining compounding sections and continuing the polymerization; discharging the polymerized composition; and optionally, taking a portion of the composition discharged from the planetary roller extruder and returning it to the first compounding section.
Abstract:
Una cinta que comprende: un sustrato que tiene una capa adhesiva aplicada al mismo, el sustrato y el adhesivo, juntos, proporcionando al menos un borde de enmascaramiento; y un revestimiento de borde aplicado al al menos un borde de enmascaramiento, el revestimiento de borde incluyendo un agente floculante; en donde el agente floculante es un polímero iónico; y en el que el revestimiento de borde incluye además un aditivo de curado seleccionado del grupo que consiste en un oligómero de acrilato ácido, dimetacrilato de etilenglicol, hexametoximetilmelamina, n-metilol acrilamida y oligómero de acrilato de poliéster.
Abstract:
Disclosed is a tape including a substrate having an adhesive layer applied thereto and an edge coating. The substrate and the adhesive together provide at least one masking edge where the edge coating is applied. The edge coating includes a lipophilic agent, a flocculating agent, or combinations thereof. The edge coating provides the tape with enhanced masking ability by preventing paints, varnishes, paint strippers, and other coating compositions from infiltrating the tape substrate or the interface between the tape and an adherend.
Abstract:
Una cinta resistente al agua marina y sensible a la presión que comprende un tejido de base, una capa de filamentos LCP sobre una superficie del tejido de base y una capa adhesiva sensible a la presión que recubre los filamentos y los une al tejido de base.