Polycarboxy/polyol fiberglass binder of low pH
US6331350A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 2, 1998 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Oct 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/252
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is a fiberglass binder which contains a polycarboxy polymer and a polyol, with a pH of the binder being no greater than 3.5. It is further preferred that the polycarboxy polymer has a molecular weight of less than 10,000, and more preferably about 5000 or less. The binder also preferably includes a catalyst which is an alkali metal salt of a phosphorus polyol is preferably triethanolamine. The binder also preferably includes a catalyst which is an alkali metal salt of a phosphorus-containing organic acid. The resultant binder, particularly when used in preparing fiberglass products, provides minimal processing difficulties and a product with excellent recovery and rigidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.