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1. 发明公开

EP1492923A1 SWOLLEN STARCH-LATEX COMPOSITIONS FOR USE IN PAPERMAKING 有权
标题翻译： PUFFY强度橡胶组合物用于造纸
公开(公告)号：EP1492923A1
公开(公告)日：2005-01-05
申请号：EP03711757.9
申请日：2003-04-07
申请人： Pulp and PaperResearch Institute of Canada
发明人： LALEG, Makhlouf
IPC分类号： D21H17/71 , D21H17/69
CPC分类号： C08L3/00 , D21H17/29 , D21H17/42 , D21H17/43 , D21H17/675 , D21H17/69 , D21H17/71 , D21H21/52
摘要： A filler treatment comprising the preparation of swollen starch-latex compositions, prepared in the presence or absence of co-additives, and the addition of the said composition to a filler suspension, has been developed. Use of the treated filler during papermaking improves filler retention and produces filled papers where addition of the filler has only a minimal negative effect on strength properties. The swollen starch-latex compositions can be prepared in a batch or jet cooker, or by mixing (7) with hot water under controlled conditions (i.e., temperature, pH, mixing, mixing time) in order to make the starch granules swell sufficiently to improve their properties as a filler additive but avoiding excess swelling leading to their rupture. The swollen starch-latex composition is then rapidly mixed with the filler slurry (5), preferably in a static mixer (6), and added to the papermaking furnish (1) at a point prior to the headbox (3) of the paper machine. The starch-latex composition can be used with wood-free or wood-containing furnishes. The treated filler is easily retained in the web during papermaking, improves drainage, and gives sheets having good formation. Sheets made with the treated fillers have higher bonding and tensile strengths than sheets produced using filler treated with either swollen starch alone or latex alone.

2. 发明公开

EP1356156A2 HEAT TREATMENT OF POLYSULPHIDE CONTAINING WHITE LIQUORS 无效
标题翻译：多硫化物热处理，内含白色碱
公开(公告)号：EP1356156A2
公开(公告)日：2003-10-29
申请号：EP02709938.1
申请日：2002-01-23
申请人： Pulp and PaperResearch Institute of Canada
发明人： VAN HEEK, Ronald, Peter , DORRIS, Gilles, Marcel , ULOTH, Victor, Charles , PAGE, Natalie , HU, Thomas, Qiuxiong , LECLERC, Denys, Francois
IPC分类号： D21C11/00
CPC分类号： D21C11/0057
摘要： Oxidized white liquor is heat treated to increase the concentration of PSUV measured at 285 or 286 nm or PSVIS measured at 416 nm and the PSUV/PSGR or PSVIS/PSGR ratio, whereby the content of active polysulphide in the total polysulphide is increased which active polysulphide can be exploited to increase pulp yield in Kraft pulping.

3. 发明公开

EP1185736A1 RETENTION AGENT COMPRISING PEO 有权
标题翻译：保持剂含PEO
公开(公告)号：EP1185736A1
公开(公告)日：2002-03-13
申请号：EP00910457.1
申请日：2000-03-15
申请人： Pulp and PaperResearch Institute of Canada
发明人： LAIVINS, Gunar, V. , POLVERARI, Marco
IPC分类号： D21H21/10
CPC分类号： D21H21/10 , D21H17/48 , D21H17/53
摘要： A process is disclosed for the production of paper and paper-like products from a suspension of papermaking materials to which poly(ethylene oxide) and a phenolic type cofactor which may be produced by a Williamson synthesis from a resin, are added to improve the retention of fibres, of fines, of dispersed extractives and of fillers during the processes of water removal for the manufacturing of paper.

4. 发明公开

EP1149174A1 METHOD FOR PREDICTING FIBER LENGTH USING QTL'S AND MOLECULAR MARKERS 审中-公开
标题翻译：预支方法参见纤维长度，带个QTL与分子标记一起使用
公开(公告)号：EP1149174A1
公开(公告)日：2001-10-31
申请号：EP00901454.9
申请日：2000-01-31
申请人： Pulp and PaperResearch Institute of Canada
发明人： POTTER, Simon , WATSON, Paul, A.
IPC分类号： C12Q1/68 , A01H1/04
CPC分类号： C12Q1/6895 , C12Q1/683 , C12Q2600/13 , C12Q2600/156
摘要： The present invention relates to a novel method for the prediction of fiber length and the selection of superior trees using genetic marker loci. The method comprises comparing genotypic survey data to phenotypic data collected from the same trees used to create the genotypic survey and identifying particular genetic marker loci or quantitative trait loci (QTL's) that are associated with fiber length. The method allows superior trees to be identified, from both plantations and natural populations, and selected for in tree improvement breeding programs by genotyping with identified genetic marker loci.

5. 发明公开

EP1326999A2 A NUCLEIC ACID-BASED METHOD FOR TREE PHENOTYPE PREDICTION 审中-公开
标题翻译：程序对于核酸BASIS预测TREE表型
公开(公告)号：EP1326999A2
公开(公告)日：2003-07-16
申请号：EP01949143.0
申请日：2001-06-21
申请人： Pulp and PaperResearch Institute of Canada
发明人： POTTER, Simon , WATSON, Paul, A.
IPC分类号： C12Q1/68
CPC分类号： A01H1/04 , A01H7/00 , C12Q1/683 , C12Q1/6895 , C12Q2600/13 , C12Q2600/156
摘要： The present invention relates to a novel method for the prediction of fibre length and the rapid selection of superior trees for given pulp and paper product lines using a DNA probe. The method comprises the isolation of tree genomic DNA from a hybrid spruce live tissue source, hybridization of the spruce DNA probe to that genomic DNA and the densitometric assessment of the intensity of the hybridization pattern obtained. This determines the precise degree of genetic admixing (or introgression) of the two parent species within the hybrid population. Due to the linear relationship - in the hybrid spruce population examined - between degree of genetic introgression and fibre length (discovered in this method), the intensity of the DNA probe hybridization pattern can be used to directly, accurately and reproducibly predict the fibre length found (for a given tree age) within an individual hybrid spruce within the population.

6. 发明公开

EP1264043A1 REFINER FORCE SENSOR 有权
标题翻译：功率传感器在精磨机
公开(公告)号：EP1264043A1
公开(公告)日：2002-12-11
申请号：EP01914879.0
申请日：2001-03-15
申请人： Pulp and PaperResearch Institute of Canada , QUEEN'S UNIVERSITY AT KINGSTON
发明人： BANKES, Alan, Henry , WILD, Peter, Martin , OUELLET, Daniel
IPC分类号： D21D1/30 , D21D1/00
CPC分类号： D21D1/002 , D21D1/30 , D21D1/306
摘要： This invention relates to a refiner force sensor for refiners used in the pulp and paper industry, to a refining apparatus, and to a method of measuring force acting on a refiner bar in a refiner.

7. 发明公开

EP1240511A1 DETERMINATION OF KAPPA NUMBER IN CHEMICAL PULPS BY RAMAN SPECTROMETRY 有权
标题翻译：卡伯值的化学制浆用拉曼光谱测定
公开(公告)号：EP1240511A1
公开(公告)日：2002-09-18
申请号：EP00988530.2
申请日：2000-12-20
申请人： Pulp and PaperResearch Institute of Canada
发明人： TRUNG, Thanh P. , LECLERC, Denys Francois
IPC分类号： G01N33/34
CPC分类号： G01N33/343 , G01N21/65
摘要： A rapid method is provided for the on-line spectroscopic determination of lignin content and/or kappa number in wood pulps. Unlike currently available commercial instrumentation, the method enables one to measure lignin content independently of species variations and pulp consistency. The method includes the steps of: (1) withdrawing high-consistency samples of wood pulp from a chemical pulp manufacturing process; (2) subjecting these samples to a monochromatic visible-light source; (3) recording the resulting scattered light and its Raman spectrum over a predetermined range of wave numbers so as to produce Raman-scattered light intensity measurements; (4) determining either the uncorrected, baseline-corrected and/or integrated Raman-scattered light intensity of the samples over a predetermined range of wavenumbers shown by different combinations of lignin content, cellulose content, and consistency; (5) correlating by either univariate or multivariate calibration the relationships between the Raman-scattered light intensity measurements of unknown samples and the Raman-scattered light intensity shown by known combinations of lignin content, cellulose content, and consistency so that the lignin content and/or kappa number in wood pulps can be accurately determined over a Kappa range of 5 to 110 and preferably 5 to 20, for any levels of sample cellulose content or pulp consistency.

8. 发明公开

EP1070167A1 CHLORINE DIOXIDE BLEACHING WITH ADDITIVES 审中-公开
标题翻译：与添加剂二氧化氯
公开(公告)号：EP1070167A1
公开(公告)日：2001-01-24
申请号：EP99908707.5
申请日：1999-03-12
申请人： Pulp and PaperResearch Institute of Canada
发明人： JIANG, Zhi-Hua , VAN LIEROP, Barbara , BERRY, Richard, McK.
IPC分类号： D21C9/14
CPC分类号： D21C9/14 , D21C9/1036
摘要： A method has been developed which enhances the effectiveness of chlorine dioxide bleaching of lignocellulosic materials. It is effected by adding to the chlorine dioxide bleaching stage an aldehyde compound at a concentration of from about 0.01 % to about 20 %, by weight of the oven-dried lignocellulosic material.

9. 发明公开

EP1068391A1 METHOD FOR PRODUCING PULP AND PAPER WITH CALCIUM CARBONATE FILLER 审中-公开
标题翻译：纸浆和纸张生产与钙填料
公开(公告)号：EP1068391A1
公开(公告)日：2001-01-17
申请号：EP99907215.0
申请日：1999-03-17
申请人： Pulp and PaperResearch Institute of Canada
发明人： MIDDLETON, Steven, R. , DESMEULES, Josee , SCALLAN, Anthony, M.
IPC分类号： D21H17/67 , D21H17/64
CPC分类号： D21C9/002 , D21H17/675
摘要： A method is described for attaining high levels of loading of calcium carbonate fillers in the lumens of wood pulp fibres. The pulp is pretreated with a cationic polymer prior to being impregnated with the filler. Different conditions of pH and temperature are specified depending on whether the filler is a precipitated calcium carbonate or a ground calcium carbonate. The lumen-loaded pulps are used to make novel products with advantages in higher filler retention and sheet strength over conventionally made papers.

10. 发明公开

EP1031023A1 DETERMINATION OF ANIONIC SPECIES CONCENTRATION BY NEAR INFRARED SPECTROSCOPY 有权
标题翻译：浓度物质的由阴离子近红外光谱测定
公开(公告)号：EP1031023A1
公开(公告)日：2000-08-30
申请号：EP98952463.2
申请日：1998-11-03
申请人： Kvaerner Canada Inc. , Pulp and PaperResearch Institute of Canada
发明人： KESTER, Michael , LECLERC, Denys, F. , TRUNG, Thanh, P.
IPC分类号： G01N21/35
CPC分类号： G01N21/359 , G01N21/3577
摘要： A method for determining the concentration of anionic species selected from the group consisting of OH-, CO3?= and HS-¿ and of organic species in an aqueous sample solution, said method comprising subjecting said solution to near infrared radiation at a wavelength region of wave numbers selected from about 7,000 to 14,000 cm-1 through a solution path length of at least 3 mm to obtain spectral data for said solution; obtaining comparative spectral data for said anionic species at known concentrations in aqueous solutions; and correlating by multivariate calibration the relationships between said spectral data of said sample solution and said comparative spectral data to determine said concentration of said anionic species in said sample solution. The method is of particular value for use with pulp liquor determination and control in regards to the rapid and accurate determination of the OH-, HS- and CO¿3?= anionic species and of organic species present in pulp liquor.

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