Title:
フェノール−ホルムアルデヒドレゾール基バインダを用いたミネラルウール製品の製造方法
Document Type and Number:
Japanese Patent JP6845315
Kind Code:
B2
Abstract:
The invention relates to a method for the manufacture of mineral wool, comprising reacting an aqueous phenolformaldehyde 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 10-40 wt.% relative to the sum of the dry weight of the phenolformaldehyde resole and the total amount of urea, and the second amount of urea used is at least 40 wt.-% of the total amount of urea. The invention also relates to a mineral wool product with reduced emissions of formaldehyde obtained by the method.
Inventors:
Molinero Arenas Alejandro
Asnar Eshiha Ana Isabel
Kerol Pinault Millea
Casa Dominguez Arturo Lewis
Asnar Eshiha Ana Isabel
Kerol Pinault Millea
Casa Dominguez Arturo Lewis
Application Number:
JP2019519655A
Publication Date:
March 17, 2021
Filing Date:
October 26, 2017
Export Citation:
Assignee:
Ursa Insturion Sociedad Anonima
International Classes:
C08G14/08; C03C25/34; D06M13/432; D06M15/41
Domestic Patent References:
| JP2015527431A | ||||
| JP60139715A |
Foreign References:
| US5538761 | ||||
| US20070191574 | ||||
| EP2657266A1 | ||||
| WO2013057432A1 |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes