Low density oriented strand boards
A method of producing a strand board having an average density of between 450 and 550 Km/m by providing a first set of strands having a moisture content of between 25 and 45% based on the dry weight of said strands and a second set of strand having a moisture content of between 5 and 7% based on the...
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creator | SEAN SY TREK BRUNETTE GILLES |
description | A method of producing a strand board having an average density of between 450 and 550 Km/m by providing a first set of strands having a moisture content of between 25 and 45% based on the dry weight of said strands and a second set of strand having a moisture content of between 5 and 7% based on the dry weight of said strands and forming a lay-up having a core layer formed of strands from the second set of strands sandwiched between a pair of surfaces layers each formed from strands of the first set. The lay-up is then pressed between heated platens into a consolidated panel having an average density of between 450 and 550 Km/m by closing the platens to the thickness of said consolidated panel in less than 30 seconds and raising temperature the said core layer to 100° C. in less than 35 seconds without increasing the core gas pressure above 0.17 MPa. |
format | Patent |
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The lay-up is then pressed between heated platens into a consolidated panel having an average density of between 450 and 550 Km/m by closing the platens to the thickness of said consolidated panel in less than 30 seconds and raising temperature the said core layer to 100° C. in less than 35 seconds without increasing the core gas pressure above 0.17 MPa.</description><edition>7</edition><language>eng</language><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL ; NAILING OR STAPLING MACHINES IN GENERAL ; PERFORMING OPERATIONS ; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TRANSPORTING ; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040727&DB=EPODOC&CC=US&NR=6767490B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040727&DB=EPODOC&CC=US&NR=6767490B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SEAN SY TREK</creatorcontrib><creatorcontrib>BRUNETTE GILLES</creatorcontrib><title>Low density oriented strand boards</title><description>A method of producing a strand board having an average density of between 450 and 550 Km/m by providing a first set of strands having a moisture content of between 25 and 45% based on the dry weight of said strands and a second set of strand having a moisture content of between 5 and 7% based on the dry weight of said strands and forming a lay-up having a core layer formed of strands from the second set of strands sandwiched between a pair of surfaces layers each formed from strands of the first set. The lay-up is then pressed between heated platens into a consolidated panel having an average density of between 450 and 550 Km/m by closing the platens to the thickness of said consolidated panel in less than 30 seconds and raising temperature the said core layer to 100° C. in less than 35 seconds without increasing the core gas pressure above 0.17 MPa.</description><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL</subject><subject>NAILING OR STAPLING MACHINES IN GENERAL</subject><subject>PERFORMING OPERATIONS</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TRANSPORTING</subject><subject>WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDyyS9XSEnNK84sqVTIL8pMzStJTVEoLilKzEtRSMpPLEop5mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8aHBZuZm5iaWBk5GxkQoAQB5ICX8</recordid><startdate>20040727</startdate><enddate>20040727</enddate><creator>SEAN SY TREK</creator><creator>BRUNETTE GILLES</creator><scope>EVB</scope></search><sort><creationdate>20040727</creationdate><title>Low density oriented strand boards</title><author>SEAN SY TREK ; BRUNETTE GILLES</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6767490B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL</topic><topic>NAILING OR STAPLING MACHINES IN GENERAL</topic><topic>PERFORMING OPERATIONS</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TRANSPORTING</topic><topic>WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL</topic><toplevel>online_resources</toplevel><creatorcontrib>SEAN SY TREK</creatorcontrib><creatorcontrib>BRUNETTE GILLES</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SEAN SY TREK</au><au>BRUNETTE GILLES</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Low density oriented strand boards</title><date>2004-07-27</date><risdate>2004</risdate><abstract>A method of producing a strand board having an average density of between 450 and 550 Km/m by providing a first set of strands having a moisture content of between 25 and 45% based on the dry weight of said strands and a second set of strand having a moisture content of between 5 and 7% based on the dry weight of said strands and forming a lay-up having a core layer formed of strands from the second set of strands sandwiched between a pair of surfaces layers each formed from strands of the first set. The lay-up is then pressed between heated platens into a consolidated panel having an average density of between 450 and 550 Km/m by closing the platens to the thickness of said consolidated panel in less than 30 seconds and raising temperature the said core layer to 100° C. in less than 35 seconds without increasing the core gas pressure above 0.17 MPa.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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subjects | GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL |
title | Low density oriented strand boards |
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