WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2001032375) ACID TREATMENT OF NON-WOODY LIGNOCELLULOSIC MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/032375 International Application No.: PCT/CA2000/001299
Publication Date: 10.05.2001 International Filing Date: 01.11.2000
IPC:
B27N 1/00 (2006.01) ,B27N 3/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
N
MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
1
Pretreatment of moulding material
B PERFORMING OPERATIONS; TRANSPORTING
27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
N
MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
3
Manufacture of substantially flat articles, e.g. boards, from particles or fibres
Applicants: WASYLCIW, Wayne[CA/CA]; CA (UsOnly)
STOCKMANN, Volker[CA/CA]; CA (UsOnly)
HATHAWAY, Doug[CA/CA]; CA (UsOnly)
KOSTIW, Darren[CA/CA]; CA (UsOnly)
ALBERTA RESEARCH COUNCIL INC.[CA/CA]; 250 Karl Clark Road Edmonton, Alberta T6N 1E4, CA (AllExceptUS)
Inventors: WASYLCIW, Wayne; CA
STOCKMANN, Volker; CA
HATHAWAY, Doug; CA
KOSTIW, Darren; CA
Agent: BENNETT JONES LLP; 1000 ATCO Centre 10035 - 105 Street Edmonton, Alberta T5J 3T2, CA
Priority Data:
2,287,83001.11.1999CA
60/163,26003.11.1999US
Title (EN) ACID TREATMENT OF NON-WOODY LIGNOCELLULOSIC MATERIAL
(FR) TRAITEMENT ACIDE DE MATERIAU LIGNOCELLULOSIQUE NON-LIGNEUX
Abstract:
(EN) The bonding of cereal straw in a panel is carried out with urea formaldehyde (UF) resin or melamine urea formaldehyde (MUF) resin in combination with an acid treatment of the straw. The treatment consists of applying either a strong or weak acid to straw. This results in a drop in straw pH and straw buffering capacity which facilitates the bonding of the straw with UF or MUF in a heated platen press. The treatment allows straw-based composite panels to achieve properties in excess of commercial standards without using isocyanate resins exclusively. The acid can be applied to the straw at various stages of comminution before resin addition panel pressing.
(FR) L'invention concerne la liaison de paille céréalière dans un panneau réalisée grâce à une résine d'urée-formaldéhyde (UF) ou résine d'urée-formaldéhyde mélamine (MUF) associée avec un traitement acide de la paille. Ce traitement consiste à appliquer un acide fort ou faible à la paille. En conséquence, le pH et le pouvoir tampon de la paille chutent, ce qui facilite la liaison de cette paille avec UF ou MUF dans une presse à plateaux chauffée. Ce traitement permet à des panneaux composites à base de paille de présenter des propriétés supérieures à celles des produits classiques du commerce, sans utiliser uniquement les résines isocyanate. On peut appliquer cet acide à la paille à divers stades de broyage avant le pressage du panneau avec addition de résine.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)