Volume 13, Number 1 (1967)

Original Articles

Atsuo TANAKA, Kiyomine TAKASHIMA
Studies on the Powdered-Dry Bonding Process in the Manufacture of Plywood. V. On the Effects of Hardner and Wood on the Exothermic Behaviour of Urea-Resin Adhesive     1

Atsuo TANAKA, Kiyomine TAKASHIMA
Studies on the Powdered-Dry Bonding Process in the Manufacture of Plywood. VI. On the Effects of Urea and Melamine Addition on the Exothermic Behaviour of the Urea Resin Adhesive     6

Nobue TANAKA, Moritami YASUE, Hiroyuki IMAMURA
The Chemistry of Wood Extractives. XVI. Constituents of Mansonia altissima (II)     12

Nobue TANAKA, Moritami YASUE, Hiroyuki IMAMURA
The Chemistry of Wood Extractives. XVII. Constituents of Mansonia altissima (III)     16

Bunichiro TOMITA, Yoshiyuki HIROSE, Tomoichiro NAKATSUKA
Terpenoids. X. Effects of γ-Ray Radiation on α-Pinene     20

Akira HAYASHI, Yoshifumi NAKAMURA
Studies on Lignosulfonate. XXVI. Demethylation Lignin during the Pulping Process     24

Notes

Junzo NAKANO, Chiyoko TAKATSUKA, YoshikoTANIGUCHI, Nobuhiko MIGITA
On the Structure of Aromatic Nuclei of Leaf Lignin from Hardwood     28

Abstracts

Proceedings of the Society     30


Volume 13, Number 2 (1967)

Original Articles

Hiroshi SAIKI, Kanji NAKATO
On the Relation between Shrinkage of Latewood and Cel-1 Wall Maturation     31

Takanori ARIMA
The Influence of High Temperature on Compressive Creep of Wood     36

Takesi SADOH
The Dimensional Changes of Wood during Polyethylene Glycol Treatment and Some Elastic Properties of the Treated Wood     41

Yoshiro MATAKI, Motoi OTA
Studies on the Mechanism of Thermal Coversion in the Pulp Sheet during Hot Pressing of Fiberboard. IV. Effects of the Dimensions of Wood Fibers on the Temperature Transition and the Moisture Distribution m the Wet Pulp Sheet     46

Shuji ENOMOTO, Keigo KOJIMA
Studies on the Mechanism of Dry Process Board Formation. III. Consideration of the Mechanism of Dry Process Board Formation     52

Shuji ENOMOTO, Keigo KOJlMA
Studies on the Mechanism of Dry Process Board Formation. IV. Experimental Proofs on the Theory of Dry Process Board Formation (I)     56

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
On the Condensation Manner of Phenol in Phenol Modified Thiolignin by Using the Infrared Spectrum     60

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
On the Dispersing Effect of Lignosulfonate and Carbohydrate Sulfonate in Sulfite Pulping Waste Liquor (Part 1)     65

Notes

Toyonobu SUGAWA
Contributions to the Knowledge on the Wood Anatomy of Dipterocarpaceae. Occurrence of Horizontal Intercellular Canals m Rays of the Secondary Xylem of Shorea kalunti MERR.     71

Proceedings of the Society     76


Volume 13, Number 3 (1967)

Original Articles

Tomio TAKEMURA
Plastic Properties of Wood in Relation to the Non-Equilibrium States of Moisture Content (continued)     77

Shuji ENOMOTO, Keigo KOJIMA
Studies on the Mechanism of Dry Process Board Formation. V. Experimental Proofs on the Theory of Dry Process Boad Formation (Part II)     82

Shuji ENOMOTO, Keigo KOJIMA
Studies on the Mechanism of Dry Process Board Formation. VI. Density Distribution of Board at Thickness Direction and Essence of “Rock-like Structure”     87

Kyoji MlNAMI, Motoki KONDO, Tomotake YOSHlMOTO
Photo-degradation of Wood. I. Imperfect Hardening of Cement Caused by Moulding with Wood Board Exposed to Sunlight     91

Tomotaka YOSHIMOTO, Kyoji MINAMI, Motoki KONDO
Photo-degradation of Wood. II. Imperfect Hardeninga of Cement Caused with Reducing Substances Produced in Wooden Moulding Board Exposed to Sunlight     96

Seika TAY, Masao NAGATA, Junzo NAKANO, Nobuhiko MIGITA
Studies on Utilization of Lignin. IV. Epoxidation of Thiolignin     102

Junzo NAKAO, Shokun KA, Kunio KATO, Nobuhiko MIGITA
Studies on Arylglycero 1-β-Arylether Structure in Hardwood Lignin     108

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
On the Dispersing Effect of Lignosulfonate and Carbohydrate Sulfonate in Sulfite Pulping Waste Liquor (Part 2)     113

Akio KOBAYASHI, Tadaaki HAGA, Isao YAMAKAWA, Koichiro SATO
On the Dispersing and Air Entraining Effect of Lignosulfonate     118

Notes

Yoshiyuki HIROSE, Tomoichiro NAKATSUKA
Terpenoids. XII. The Occurrence of Nezukone in the Wood of Thuja plicata DONN     123

Short Communications

Kenji IIYAMA, Junzo NAKANO, Nobuhiko MIGITA
The Resolution of Electronic Spectra of Milled Wood Lignin and Thiolignin     125

Kinji SHIMADA, Moritami YASUE, Hiroyuki IMAMURA
The structure of Mansonone I, a New Pigment from Mansonia altissima     126

Abstracts

Proceedings of the Society     130


Volume 13, Number 4 (1967)

Original Articles

Motoi OTA, Yoshiyuki TSUBOTA
Studies on the Fatigue of 2-Ply Laminated Wood. IV. Several Investigations on the Fatigue of 2-ply Laminated Wood Subjected to Repeated Bending Load     131

Motoaki OKUMA, Masaki SHlNOZUKAI
Studies on Mechanical Properties of Plywood. VI. Effect of Adhesives on Young’s Modulus in Bending of Plywood     138

Shuji ENOMOTO, Keigo KOJIMA
Studies on the Mechanism of Dry Process Board Formation. VII. Board Manufacturing Process and Structure of it     144

Shuji ENOMOTO, Keigo KOJIMA
Studies on the Mechanism of Dry Process Board Formation. VIII. On the Process of Board Formation during Hot-pressing     150

Jenn-Yang PENG, Kyoji MlNAMI, Tomotaka YOSHIMOTO
Photo-degradation of Wood. III. Photo-degradation of Hemicellulose     155

Takuma YANAGAWA, Yoshiyuki HlROSE, Tomoichiso NAKATSUKA
Terpenoids. XIII. Constituents of the Wood of Thujopsis dolabrata SIEB. et ZUCC.     160

Makoto USUDA,Atsushi STAITO, Tokio YAMAURA, Nobuhiko MIGITA
Effect of Morphological Factors on the Reactivity of Pulp in Emulsion Xanthation     165

Abstracts

The plan of Activities of the Society

Proceedings of the Society     175


Volume 13, Number 5 (1967)

Original Articles

Haruto WATANABE, Tsutomu MATSUMOTO, Nobuyuki KINOSHITA, Hiroya HAYASHI
Acoustical Study of Wood Products. I. On the Normal Absorption Coefficient of Wood     177

Shuji ENOMOTO
Studies on the Mechanism of Dry Process Board Formation. IX. Improvement of Dry Process Hardboard (Part I)     183

Yoshiso MATAKI, Motoi OTA
Studies on the Mechanism of Thermal Conversion in the Pulp Sheet during Hot Pressing of Fiberboard. V. Effects of Hot Pressing Condition on the Structure of Fiberboard     188

Akira HAYASHI, Yoshifumi NAMURA, Tadayuki UEKITA
Studies on Lignosulfonate. XXVII. Demethylation of Lignosulfonate during the Gelling Reaction with Dichromate     194

Akira HAYASHI, Hiroshi MINARl
Studies on Lignosulfonate. XXVIII. Darkening of Lignosulfonate with Heavy Metalic Ions     198

Saisei MlYAO, Junzo NAKANO, Chiyoko TAKATSUKA, Nobuhiko MIGITA
Studies on Polysulfide Cooking. V. Stabilization of Hemicellulose to Hot Alkaline Solution by Treatment with Polysulfide     202

Junzo NAKANO, Migaku SUZUKI, Setsuo SAHEKI, Mobuhiko MIGITA
Effect of Alkaline Cooking on Lignin. IX. Model Experiments on the Cleavage of Arylalkyl-β-arylether     208

Akio KOBAYASHl, Tadaaki HAGA, Isao YAMAKAWA, Koichiro SATO
On the Air Entraining Effect of Lignosulfonate     213

Abstracts of Discussions at the Symposia in the 17th Conference of Japan Wood Research Society

Abstracts

Proceedings of the Society     224


Volume 13, Number 6 (1967)

Original Articles

Tokuo YOKOTA
Diffusion of Non-Swelling Gas through Wood     225

Genichi NAKAMURA
Effect of Rotation of Saw Spindle to Cutting Force in Circullar Sawing     232

Motoaki OKUMA, Kenzo TERUl
Studies on the Mechanical Properties of Plywood. VII. Properties of the Core Veneer and Rolling Shear Strength of Plywood     238

Haruo YAMADA
On the Changes of the Properties of Hardwood during Hot Pressing Process. II. The Changes of Board Crystallinity with the Hot Pressing Temperature     242

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
The Dispersing Effect of Lignosulfonates upon Aqueous Saspension of Barium Carbonates     246

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
The Properties of Hardwood Lignosulfonate as a Dispersing Agent     252

Seika TAI, Junzo NAKANO, Nobuhiko MIGITA
Studies on Utilization of Lignin. V. Adhesive from Lignin Epoxide     257

Notes

Akira HAYASHI, Yasutoshi KAKIZAWA, Terumasa HIRAYAMA
Milled Wood Hemicellulose. I.     263

Short Communications

Koji MURAKAMI
The Structure of Thujastadin, a New Lignin from Thuja standishii (GORD.) CARR     265

Research Materials

Abstracts

Proceedings of the Society     268


Volume 13, Number 7 (1967)

Original Articles

Takayoshi HIGUCHI, Mikio SHIMADA, Koji WATANABE
Studies on the Mechanism of Heartwood Formation. V. Change in the Pattern of Glucose Metabolism in Heartwood Formation     269

Takayoshi HIGUCHI, Mikio SHIMADA, Koji WATANABE
Studies on the Mechanism of Heartwood Formation. VI. On the Artificial Heartwood of Cryptomeria japonica and Pinus densiflora     274

Atsuo TANAKA, Masatoshi KAMITANl
Studies on the Dry Bonding Process with Powdered Urea Resin in the Manufacture of Plywood. VIII. On the Extracting Behaviours of Powdered Resin Adhesive in the Progressive Stage of the Condensation     279

Atsuo TANAKA, Masatoshi KAMITANl
Studies on the Dry Bonding Process with Powdered Urea Resin in the Manufacture of Plywood. IX. On the Relationship between the Degree of Cure of Powdered Urea Resin Adhesives and the Bond Strength of Plywood     284

Shuji ENOMOTO
Studies on the Mechanism of Dry Process Board Formation. X. Improvement of Dry Process Hard Board (Part II)     290

Hiroyuki IMAMURA, Hiroshi KUROSU, Toshio TAKAHASHI
The Chemistry of Wood Extractives. XVIII. The Heartwood Constituents of Rhus japonica L.     295

Murao SOGO, Katsumi HATA
Chemical Studies on the Bark. XV. On the Permanganate Oxidation of Bark Phenolic Acid, Tannin, and Björkman Lignin isolated from Bark of Some Tree Species     300

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
On the Properties of Thiolignin Modified with Phenol as a Raw Material of Phenolic Resin     306

Akio KOBAYASHI, Tadaaki HAGA, Koichiro SATO
On the Reaction between Phenol Medified Thiolignin and Hexamethylenetetramine     312

Note

Yoshiro KINOSHITA, Tae OKI, Hisao ISHIKAWA
On the Oxidative Degradation of Guaiacylglycerol with Peracetic Acid     319

Abstracts

Proceedings of the Society     322


Volume 13, Number 8 (1967)

Original Articles

Takesi SADOH, Hiroyuki URAKAMI
Rheological Properties of Wood Treated with Polyethylene Glycol. I. Comparison between the Rheological Properties of PEG-Treated Wood and of Water-Sorbed Wood     323

Takesi SADOH, Hiroyuki URAKAMI
Rheological Properties of Wood Treated with Polyethylene Glycol. II. Effect of Moisture Content and Moisture Content Change     327

Yoshihiro MATAKI, Motoi OTA
Studies on the Mechanism of Thermal Conversion in the Pulp Sheet during Hot pressing of Fiberboard. VI. On the Behaviour of Relaxation of Specific Pressure     331

Shuji ENOMOTO
Studies on the Mechanism of Dry Process Board Formation. XI. Preparation of Low Density Board (Part 1)     336

Shuji ENOMOTO
Studies on the Mechanism of Dry Process Board Formation. XII. Preparation of Low Density Board (Part 2)     341

Koichi OGlYAMA, Tamio KONDO
On the Pinoresinol Type of Structural Unit in Lignin Molecule. II. Synthesis of dl-Pinoresinol and dl-epipinoresinol     345

Kazuhiko SAMESHIMA, Daikichiro OKUMURA, Hiroshi KAWANO, Tamio KONDO
Studies on the Intermediate Zone of Sugi Wood. II. Some Physiological Activities of Xylem Tissue (2)     349

Tetsuo KOSHIJIMA, Einosuke MURAKI
Radial Grafting on Lignin (II). Grafting of styrene into Lignin by Initiators     355

Note

Yoshiyuki HIROSE, Yoshikatsu SAYAMA, Tomoko IGARASHI, Tomoichiro NAKATSUKA
Terpenoids. XIV. Composition of the Essential Oil from the Wood of Kapur (Dryobalanops sp.)     359

Abstracts

Proceeding of the Society