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Patent Searching and Data


Matches 701 - 750 out of 2,242

Document Document Title
WO/1982/001568A1
A method for manufacturing wood pulp which comprises pulping wood with a mixture of ethanol and sodium hydroxide and wood pulp manufactured in accordance with the method.  
WO/1982/001019A1
A process to produce pulp from vegetable, cellulose-containing fibrous material such as coniferous wood, hardwood, straw, bagasse etc., the fibrous material being treated in several stages. In a first stage the fibrous material is impreg...  
WO/1982/000483A1
A high yield of a high quality pulp is obtained by cooking fragmented lignocellulose material at a temperature of 180 to 240 C with a mixture of methanol or ethanol and water containing 80 to 98 percent by volume of the alcohol, the mixt...  
WO/1981/003505A1
Method for selectively defiberizing and delignifying lignocellulose employing a novel alkaline pulping system. The subject pulping system includes a pulping liquor comprising water, a water-miscible organic reagent, and a sulfide or bisu...  
WO/1981/000267A1
A process for making defibered pulp material comprising the steps of treating fibrous ligno-cellulosic material with aqueous nitric acid or nitrate salts having a nitrate ion concentration of about 0.001 to 9.0 wt.% and containing at lea...  
WO/1980/002574A1
A method of utilizing kraft black liquor by converting the black liquor to "green liquor" and then oxidizing the green liquor with air in the presence of a quinone compound or spent liquor from the kraft process, the soda semi-chemical p...  
WO/1980/000159A1
The process comprises the attacking of a cellulosic plant material, by separation of binding substances, such as lignin, by using amino organic compounds. In most of the known processes which use aqueous solutions or dispersions of the a...  
WO/1979/000152A1
Shelf life of silica based defoamer composition is improved by adding oil soluble resins and optionally aliphatic fatty acids to retard separation and to inhibit settling. The composition is useful in preventing foaming or in defoaming a...  
WO/1979/000119A1
Minced lignocellulose, such as wood, straw, bamboos, bagasse or any other structured vegetal material, is treated in a discontinuous or continuous process. The process consists in boiling this material in an acidified mixture of solvents...  
JP2014525519A  
JP5585882B2  
JP5563447B2  
JP5543015B2  
JP5544490B2  
JP2014514471A  
JP2014514468A  
JP5520822B2  
JP5491687B2  
JP5491477B2  
JP2014074261A
To provide lyocell fibers having pebbled surfaces and variations in cross section and diameter along and between the fibers.The lyocell fibers can be produced by centrifugal spinning, meltblowing, or its spunbonding variation, and produc...  
JP2014074251A
To provide a technology for efficiently manufacturing a molten kraft pulp having a high α-cellulose content from a coniferous tree material.There is provided a method for manufacturing a molten kraft pulp including (a) a process of hydr...  
JP2014074252A
To provide a technology for efficiently manufacturing a high quality molten kraft pulp from a coniferous tree material.A molten kraft pulp is manufactured by processes including (a) a process of hydrolyzing hemicellulose part contained i...  
JP2014508867A  
JP5467041B2  
JP2014034744A
To provide a method for producing dissolving pulp while performing stable hydrolysis to efficiently remove hemicellulose, in a method for producing dissolving pulp by pre-hydrolysis treatment.In a method for producing dissolving pulp, wh...  
JP2014504151A  
JP2014029044A
To provide a technique for efficiently producing dissolving kraft pulp having a high α-cellulose content.A method for producing dissolving kraft pulp comprises the steps of: kraft digesting wood chips which have been treated with pre-hy...  
JP2014001488A
To provide a kraft cooking method which can notably improve a pulp yield without requiring large-scale equipment changes, and a pulp yield improver used for the method.In a kraft cooking method where pulp material is cooked in black liqu...  
JP2014001471A
To provide a technique for manufacturing dissolving pulp having high quality by a kraft pulping method using hardwood materials as raw materials.There is provided a method for manufacturing dissolving pulp from hardwood materials includi...  
JP2014001470A
To provide a technique for manufacturing dissolving pulp having high quality by a kraft pulping method using conifer materials as raw materials.There is provided a method for manufacturing dissolving pulp from conifer materials including...  
JP5383805B2  
JP5360546B2  
JP2013227705A
To provide a method for producing dissolving pulp from a lignocellulose material in which pulp is adjusted to have a desired viscosity and a desired ash content in a one-stage treatment after a bleaching step at the end.The dissolving pu...  
JP2013213287A
To provide a method for manufacturing kraft pulp at a high yield by using wood chips made of a back plate of a Cryptomeria japonica as a raw material.A method for manufacturing kraft pulp by using wood chips made of a back plate of a Cry...  
JP2013213288A
To provide a method for manufacturing kraft pulp at a high yield by using wood chips made of a broadleaf tree as a raw material.A method for manufacturing kraft pulp by using wood chips made of a broadleaf tree as a raw material, include...  
JP2013198424A
To efficiently obtain plant fibers from a plant-based raw material, that is difficult to delignify, by oxidizing a lignin component contained in the plant-based raw material under mild conditions, the fibers containing cellulose and hemi...  
JP5295231B2  
JP2013181258A
To provide a kraft cooking method capable of producing unbleached pulp that contains a small amount of residue and is easily bleached, with a high yield by using hardwood as a raw material.The unbleached pulp that has a Kappa number of 1...  
JP2013531139A  
JP5242834B1  
JP2013528715A  
JP5220391B2  
JP5212806B2  
JP5207191B2  
JP5193599B2  
JP2013067877A
To calculate an effect of the addition of an anthraquinone compound in a swift and accurate manner when a lignocellulose material as a raw material is subjected to alkali cooking using the anthraquinone compound.A method for calculating ...  
JP2013512350A  
JP5178317B2  
JP5174183B2  
JP5140405B2  

Matches 701 - 750 out of 2,242