GB1469934A - Bonding of solid lignocellulosic material - Google Patents

Bonding of solid lignocellulosic material

Info

Publication number
GB1469934A
GB1469934A GB808474A GB808474A GB1469934A GB 1469934 A GB1469934 A GB 1469934A GB 808474 A GB808474 A GB 808474A GB 808474 A GB808474 A GB 808474A GB 1469934 A GB1469934 A GB 1469934A
Authority
GB
United Kingdom
Prior art keywords
carbohydrate
bonding composition
starch
veneers
bonding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB808474A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHEMOTHERM BONDING Inc
Original Assignee
CHEMOTHERM BONDING Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHEMOTHERM BONDING Inc filed Critical CHEMOTHERM BONDING Inc
Priority to GB808474A priority Critical patent/GB1469934A/en
Priority to ES426097A priority patent/ES426097A1/en
Priority to FI750207A priority patent/FI750207A/fi
Priority to ZA00750551A priority patent/ZA75551B/en
Priority to BR7500880D priority patent/BR7500663A/en
Priority to AU77872/75A priority patent/AU492011B2/en
Priority to AU77871/75A priority patent/AU490135B2/en
Priority to CA219,659A priority patent/CA1058499A/en
Priority to DE2506346A priority patent/DE2506346C2/en
Priority to SE7501736A priority patent/SE416311B/en
Priority to JP1997875A priority patent/JPS5512146B2/ja
Priority to FR7505564A priority patent/FR2262097B1/fr
Priority to NL7502141A priority patent/NL7502141A/en
Priority to US05/767,261 priority patent/US4107379A/en
Publication of GB1469934A publication Critical patent/GB1469934A/en
Priority to US05/839,462 priority patent/US4183997A/en
Priority to OA57152A priority patent/OA06564A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
    • C09J103/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/28—Non-macromolecular organic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/54—Inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/14—Hemicellulose; Derivatives thereof

Abstract

1469934 Plywood CHEMOTHERM BONDING Inc 24 Jan 1975 [22 Feb 1974 8 May 1974] 8084/74 and 20227/74 Heading B5L [Also in Division C3] Wood veneers are bonded together by applying a bonding composition consisting essentially of a non-cellulosic carbohydrate, a liquid carrier and an acid capable of catalysing hydrolysis of the carbohydrate to a surface of the veneer(s) and pressing the veneers together at an elevated temperature. The carbohydrate may be cellulose, hemicellulose, a sugar, e.g. sucrose or glucose or a starch, e.g. starch contained in wheat or corn flour. A preferred bonding composition comprises substantially equal amounts of sugar and starch. The acid may be sulphuric, hydrochloric, phosphoric or acetic acid which may be used in an amount 1-20% by weight of the carbohydrate. The bonding composition, which may be heated, e.g. to 100-130‹ C., prior to application, may be applied in an amount to give 2-32 gms. of carbohydrate per 1000 cm.<SP>2</SP> of surface. The surfaces are preferably pressed together at 140-200‹ C. and at a pressure of 5-25 kg./cm.<SP>2</SP>. The lignocellulosic material may be heated after application of the bonding composition, e.g. to not more than 140‹ C., and before pressing. In Examples I and III 3 ply plywood is produced from Douglas fir veneers and an aqueous solution containing 25% sucrose, 25% starch (I) or wheat flour (III) and 1% sulphuric acid. In Example II the veneers covered with bonding composition are heated in an oven prior to pressing.
GB808474A 1974-02-22 1974-02-22 Bonding of solid lignocellulosic material Expired GB1469934A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
GB808474A GB1469934A (en) 1974-02-22 1974-02-22 Bonding of solid lignocellulosic material
ES426097A ES426097A1 (en) 1974-02-22 1974-05-08 Bonding of solid lignocellulosic material
FI750207A FI750207A (en) 1974-02-22 1975-01-27
ZA00750551A ZA75551B (en) 1974-02-22 1975-01-27 Bonding of solid lignocellulosic material
BR7500880D BR7500663A (en) 1974-02-22 1975-01-31 METHOD OF CONNECTING SOLID LIGNICELLULOTIC MATERIALS
AU77872/75A AU492011B2 (en) 1975-02-04 Bonding of solid lignocellulosic material
AU77871/75A AU490135B2 (en) 1974-02-22 1975-02-04 n BONDING OF SOLID LIGNOCELLULOSIC MATERIAL
CA219,659A CA1058499A (en) 1974-02-22 1975-02-10 Bonding of solid lignocellulosic material
DE2506346A DE2506346C2 (en) 1974-02-22 1975-02-14 Method for pressing solid wood pulp materials
SE7501736A SE416311B (en) 1974-02-22 1975-02-17 PROCEDURE FOR THE CONNECTION OF SOLID LIGNOCELLULO MATERIAL USING A COMPOSITION OF A CARBOHYDRATED AND ACID CATALYST
JP1997875A JPS5512146B2 (en) 1974-02-22 1975-02-19
FR7505564A FR2262097B1 (en) 1974-02-22 1975-02-21
NL7502141A NL7502141A (en) 1974-02-22 1975-02-21 METHOD OF JOINING SOLID LIGNO-CELLULOSE MATERIAL.
US05/767,261 US4107379A (en) 1974-02-22 1977-02-10 Bonding of solid lignocellulosic material
US05/839,462 US4183997A (en) 1974-02-22 1977-10-04 Bonding of solid lignocellulosic material
OA57152A OA06564A (en) 1974-02-22 1980-07-02 A method of bonding solid woody cellulogic materials.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB808474A GB1469934A (en) 1974-02-22 1974-02-22 Bonding of solid lignocellulosic material

Publications (1)

Publication Number Publication Date
GB1469934A true GB1469934A (en) 1977-04-06

Family

ID=9845449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB808474A Expired GB1469934A (en) 1974-02-22 1974-02-22 Bonding of solid lignocellulosic material

Country Status (8)

Country Link
JP (1) JPS5512146B2 (en)
ES (1) ES426097A1 (en)
FI (1) FI750207A (en)
FR (1) FR2262097B1 (en)
GB (1) GB1469934A (en)
OA (1) OA06564A (en)
SE (1) SE416311B (en)
ZA (1) ZA75551B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096797A2 (en) * 1982-06-12 1983-12-28 BASF Aktiengesellschaft Method of manufacturing woodchip materials with a reduced emission of formaldehyde
CN113103380A (en) * 2021-04-13 2021-07-13 桃江县福丰木业有限公司 Environment-friendly wood veneer not easy to crack and preparation method thereof
CN114133913A (en) * 2021-12-24 2022-03-04 南京林业大学 Waste molasses-based high-strength environment-friendly formaldehyde-free adhesive and preparation method and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096797A2 (en) * 1982-06-12 1983-12-28 BASF Aktiengesellschaft Method of manufacturing woodchip materials with a reduced emission of formaldehyde
EP0096797A3 (en) * 1982-06-12 1984-07-18 Basf Aktiengesellschaft Method of manufacturing woodchip materials with a reduced emission of formaldehyde
CN113103380A (en) * 2021-04-13 2021-07-13 桃江县福丰木业有限公司 Environment-friendly wood veneer not easy to crack and preparation method thereof
CN114133913A (en) * 2021-12-24 2022-03-04 南京林业大学 Waste molasses-based high-strength environment-friendly formaldehyde-free adhesive and preparation method and application thereof
CN114133913B (en) * 2021-12-24 2022-09-30 南京林业大学 Waste molasses-based high-strength environment-friendly formaldehyde-free adhesive and preparation method and application thereof

Also Published As

Publication number Publication date
SE416311B (en) 1980-12-15
FR2262097B1 (en) 1978-10-06
FR2262097A1 (en) 1975-09-19
JPS5512146B2 (en) 1980-03-31
FI750207A (en) 1975-08-23
SE7501736L (en) 1975-08-25
OA06564A (en) 1981-07-31
JPS50145437A (en) 1975-11-21
ZA75551B (en) 1976-01-28
ES426097A1 (en) 1974-10-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee