Method and apparatus for gluing wood particles
US9061437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Feb 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27N3/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and an apparatus for gluing wood particles, in particular wood strands, is described, as well as a method for the manufacturing of lignocellulosic products, in particular chip boards, oriented strand boards or fiber boards. Since the wood particles are blended in a blending device with a water-curable binder, in particular with polymeric diphenylmethane diisocyanate and moisture is added to the wood particles outside the blending apparatus, curing of the binder inside the blending apparatus, and as a consequence pollution thereof, can be avoided. Moreover, moisturizing outside the blending device can produce a particular even distribution of moisture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.