Paper making and fiber liberation inventions 02/09

20090050281 - Sanitary sheets made of waste paper and a process of preparing sanitary sheet from waste paper: This invention relates to an improved smudge free sanitary sheet made of waste paper and a process of preparing the same through processing the surplus newsprint and more precisely processing used/recycled paper. The sanitary sheets are prepared by the process steps of collecting pre-consumer overprint or post consumer read newspapers;... Agent: Sanjiv Agarwal

20090050282 - Process for the manufacture of paper and board, corresponding novel retention and drainage aids, and paper and board thus obtained: i

20090050283 - Press belt and shoe press roll: A press belt 2 comprises both end corresponding regions B positioned so as to correspond to both ends of a press roll 1 or a pressing shoe 3 in the width direction and a center region A positioned between the both end corresponding regions B. The center region A has... Agent: Ditthavong Mori & Steiner, P.C.

20090044921 - Bentonite for binding impurities during paper production: P

20090044922 - Cationic crosslinked waxy starch products, a method for producing the starch products, and use in paper products: There are disclosed cationic crosslinked waxy starch products having a Brookfield viscosity of about 700 cps to about 2500 cps and a method for preparing the starch products. Also disclosed is the use of the cationic crosslinked waxy starch products having a Brookfield viscosity of about 700 cps to about... Agent: Perkins Coie LLP/cargill, Inc.

20090038767 - Method and system for semi-chemical pulping: Method and apparatus for minimizing adherence of lignin to an extraction screen in a semi-chemical pulping process. The method and apparatus generally relate to supplying white liquor and NaOH to as to increase the pH of cooking liquor at or near an extraction screen.... Agent: Nixon & Vanderhye, PC

20090038768 - Process for producing absorbent sheet: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying... Agent: Patent Group Ga030-43 Georgia-pacific LLC

20090038769 - Arrangement in connection with screening apparatuses: An arrangement in screening apparatuses of the pulp and paper industry, including a conduit for removing reject formed in a screening process. The circulation of material is arranged between the reject removal conduit and the interior of the screening apparatus from the removal conduit into the interior of the screening... Agent: Nixon & Vanderhye, PC

20090038770 - Belt for papermaking machine: The belt for a papermaking machine of the present invention is a belt for a papermaking machine having an outer peripheral surface stacked on the felt side of a substrate, characterized in that the outer peripheral surface comprises an intermediate layer in contact with the substrate and an outermost layer... Agent: Buchanan, Ingersoll & Rooney PC

20090032206 - Processes used in the manufacture of paper products: Surfactant penetrant treating solutions and their use in the manufacture of paper products. The surfactant penetrant treating solutions include two types. The first type is an enzymatic surfactant penetrant treating solution, and the second type is a defoaming surfactant penetrant treating solution. The solutions may be used to break down... Agent: Michael Best & Friedrich LLP

20090032207 - Process for producing mechanical pulp suitable for paper or cardboard making: Method for the production of mechanical or chemi-mechanical pulp as raw material for paper or cardboard. According to this method, the pulp is fibrillated and the fibrillated pulp is bleached in alkaline conditions. According to the present invention, the pulp is screened to separate the reject from the accept, at... Agent: Kubovcik & Kubovcik

20090032208 - Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone: Process for bleaching of pulps following cooking of the lignocellulosic material with soda and anthraquinone. The process may produce a whiteness on par with the bleaching of kraft pulp when using a similar bleaching sequence. In some instances, the bleaching sequence may be O-A-Do-Eop-D, O-A-ZDo-Eop-D, A-Do, or A-ZDO.... Agent: Nixon & Vanderhye, PC