摘要:
A porous absorbent structure is disclosed which includes absorbent particles and a superabsorbent polymer material having less than about 1000 parts per million residual monoethylenically unsaturated monomer, the superabsorbent polymer material substantially coating the absorbent particles and connecting the particles into a porous network to form the porous absorbent structure.
摘要:
Le matériau est un stratifié contenant dans l'ordre spécifié, a) une couche extérieure d'un tissu textile préformé (1) (tel qu'un tissu touffeté) ayant une base (2) et des touffes (3); b) une couche de liaison continue (5) d'adhésif hydrophobe thermofusible (5) qui encapsule la partie en forme de faisceau (6) des touffes (3) ainsi que la base (2) et laisse seulement les extrémités libres des touffes dépasser de la surface de manière à ce que le stratifié soit imperméable aux liquides; et c) une couche de support (4).
摘要:
The invention concerns a method consisting in: a) generating a suspension of fine droplets of a binder dispersion in a given volume (9) above a fibre lap (2); b) spraying the particles (1) in said volume (9), whereby said particles (1) are coated by the binder dispersion (11) and drop on the fibre lap (2); c) and subjecting the assembly fibre lap /particle coated with the dispersion to a treatment, in particular thermal, for fixing the binder on the fibres of the lap (2). The installation comprises: a) an endless belt (5) provided with driving means; b) means for atomising (8) a binder dispersion (11) for generating a suspension of fine droplets of said dispersion in a given volume (9) above the endless belt; c) means (10) for spraying the particles (1) towards said volume (9); and d) a treating chamber (7) arranged on the path of the endless belt (5), downstream of the atomising (8) and spraying (10) means.
摘要:
A slot die for producing a fibrous web of adhesive material includes a segmented shim having a plurality of fingers in said slot dividing adhesive material into a plurality of adhesive streams. The fingers have tapered ends which are flush with or extend slightly beyond the slot nozzle outlet. Separate material streams emanate from the slot nozzle outlet where they merge and are engaged by air flow producing a fibrous web of adhesive material. The adhesive and air flow are started and stopped at intervals to produce discrete fibrous webs having square, sharp leading and trailing edges.
摘要:
A porous absorbent structure is disclosed which includes absorbent particles and a superabsorbent polymer material having less than about 1000 parts per million residual monoethylenically unsaturated monomer, the superabsorbent polymer material substantially coating the absorbent particles and connecting the particles into a porous network to form the porous absorbent structure.
摘要:
The invention relates to a method and a device for producing construction elements, in which a reactive polyurethane (PUR) mixture and solid particles are applied to a nonwoven fabric, a density of 0.01 to 10.0 g of solid particles per cm2 of coated nonwoven fabric surface being set, whereupon the nonwoven fabric that has been coated with the not yet fully reacted reactive polyurethane mixture and contains solid particles is pressed and cures.
摘要:
In a carpet manufacturing method respective webs 12, 13 of material are provided to form an upper and a base layer respectively. The webs 12, 13 are advanced and brought together into superimposed relationship. A hot-melt adhesive is applied between the layers by nozzles 19 immediately before the webs 12, 13 are brought together. The webs 12, 13 are subsequently pressed together and then cooled to cause them to adhere together.
摘要:
The present invention is directed to a method for applying an aqueous polymer dispersion to a substrate involving forming a polymer dispersion having a viscosity of from 10 to 5,000 m.Pas, and applying the dispersion to a substrate at a pressure of from 100 to 1500 psi. The method is useful with porous substrates, and especially in non-woven materials. The process provides a precise means of coating a polymer dispersion on the surface of a substrate, or with controlled penetration into the substrate.