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
Priority claimed from US12/417,904external-prioritypatent/US7867359B2/en
Application filed by Xyleco IncfiledCriticalXyleco Inc
Publication of AR071669A1publicationCriticalpatent/AR071669A1/en
Metodos para producir materiales celulosicos o lignocelulosicos para utilizar en la fabricacion de papel que incluyen tratar una materia prima celulosica o lignocelulosica seca con un primer peso molecular promedio con radiacion ionizante, y controlar la dosis de radiacion ionizante de tal manera de reducir el peso molecular promedio de la materia prima hasta un nivel predeterminado. Un metodo para producir un producto de papel irradiado incluye tratar con radiacion ionizante un producto de papel que incluye un primer material que contiene carbohidratos con un primer peso molecular, y controlar la dosis de radiacion ionizante de tal manera de proveer un producto de papel irradiado con un segundo material que contiene carbohidratos con un segundo peso molecular mayor que el primer peso molecular. Se producen pulpa y productos de papel.Methods for producing cellulosic or lignocellulosic materials for use in papermaking that include treating a dry cellulosic or lignocellulosic raw material with a first average molecular weight with ionizing radiation, and controlling the dose of ionizing radiation in such a way to reduce the average molecular weight of the raw material up to a predetermined level. One method of producing an irradiated paper product includes treating a paper product that includes a first carbohydrate-containing material with a first molecular weight with ionizing radiation, and controlling the dose of ionizing radiation in such a way to provide an irradiated paper product with a second material containing carbohydrates with a second molecular weight greater than the first molecular weight. Pulp and paper products are produced.
ARP0901015542008-04-302009-04-29
PAPER PRODUCTS AND METHODS AND SYSTEMS FOR MANUFACTURING SUCH PRODUCTS
AR071669A1
(en)
A method for improving retention and drainage in a papermaking process comprising adding microparticles to the pulp, a promoter that includes a modified polymer and optionally a flocculant; method of activating a microparticle in a paper pulp; and composition.
dry cellulosic fibrous material impregnated with a bioflavonoid composition, process for impregnating a cellulosic fibrous material, method of reducing bacterial load on a surface and packaged product
Process for the production of bleached wood particles that comprises grinding crushed raw material containing cellulose, optionally pretreated in a refiner, to deliver wood particles, removing the particles from the refiner and bleaching them with a bleaching solution comprising hydrosulfite salts, sulfite and a or more basic salts, or a bleach consisting of sulfinic acids and their salts; process to produce off-white to white wood-based materials.