Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR THE MANUFACTURE OF MINERAL WOOL PRODUCTS
The invention relates to a method for the manufacture of mineral wool, comprising reacting an aqueous phenol-formaldehyde resole with free formaldehyde with a first amount of urea, thereby preparing a prereact; contacting the prereact with a second amount of urea; applying the resulting mixture of prereact and second amount of urea, as part of a binder, optionally with additives, to the surface of mineral fibers; and curing the binder on the surface of the mineral fibers. The total amount of urea used ranges 10-60 wt.% relative to the sum of the dry weight of the phenol-formaldehyde resole and the total amount of urea, provided that when Ut is between 10-40 wt. %, the second amount of urea (U2) used in c) is between 10-39 wt.% of the total amount of urea (Ut), and when Ut is between 41-60 wt.%, the second amount of urea (U2) used in c) is at least 10 wt.% of the total amount of urea (Ut). The invention also relates to a mineral wool product with reduced emissions of formaldehyde obtained by the method of the invention.
METHOD FOR THE MANUFACTURE OF MINERAL WOOL PRODUCTS
The invention relates to a method for the manufacture of mineral wool, comprising reacting an aqueous phenol-formaldehyde resole with free formaldehyde with a first amount of urea, thereby preparing a prereact; contacting the prereact with a second amount of urea; applying the resulting mixture of prereact and second amount of urea, as part of a binder, optionally with additives, to the surface of mineral fibers; and curing the binder on the surface of the mineral fibers. The total amount of urea used ranges 10-60 wt.% relative to the sum of the dry weight of the phenol-formaldehyde resole and the total amount of urea, provided that when Ut is between 10-40 wt. %, the second amount of urea (U2) used in c) is between 10-39 wt.% of the total amount of urea (Ut), and when Ut is between 41-60 wt.%, the second amount of urea (U2) used in c) is at least 10 wt.% of the total amount of urea (Ut). The invention also relates to a mineral wool product with reduced emissions of formaldehyde obtained by the method of the invention.
METHOD FOR THE MANUFACTURE OF MINERAL WOOL PRODUCTS
VERFAHREN ZUR HERSTELLUNG VON MINERALWOLLPRODUKTEN
PROCÉDÉ DE FABRICATION DE PRODUITS EN LAINE MINÉRALE
MOLINERO ARENAS ALEJANDRO (Autor:in) / AZNAR ÉCIJA ANA ISABEL (Autor:in) / QUEROL PIÑOT MIREIA (Autor:in) / CASADO DOMÍNGUEZ ARTURO LUÍS (Autor:in)
07.04.2021
Patent
Elektronische Ressource
Englisch
IPC:
D04H
Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material
,
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
/
C03C
Chemische Zusammensetzungen für Gläser, Glasuren oder Emails
,
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
/
C09J
ADHESIVES
,
Klebstoffe
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
| Europäisches Patentamt | 2018
Evaluation of Durability of Mineral Wool Products
| Trans Tech Publications | 2014