Binder for inorganic fibers and inorganic fiber mat
US12234336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Sep 9, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2435/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a binder that is for inorganic fibers and that is characterized by containing (A) 100 parts by mass of a polyvinyl alcohol resin having a degree of polymerization of 100-3500, (B) 1-50 parts by mass of colloidal silica having an average particle size of 100 nm or less, and (C) 3 parts by mass or more of an ammonia-modified copolymer containing maleic anhydride. By using the binder for inorganic fibers according to the present invention, an inorganic fiber mat having resiliency comparable to that of phenolic resins can be fabricated, and the amount of volatile organic compounds released from the inorganic fiber mat is very small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.