Patents Assigned to FIBRIA CELULOSE S/A
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Publication number: 20190301094Abstract: The present invention refers to the separation of cellulose pulp into distinct fractions with different draining and morphological characteristics, as well as the use of part of these fractions for the production of nanocellulose. The process in reference combines the unitary operations of fiber separation, thickening to a certain consistency, draining and drying of the cellulosic pulp with the high drainage ability and production of nanocellulose from high primary fines content pulp. The process may consider any cellulosic pulp fiber derived from short or long fiber woods such as Eucalyptus, Corymbia, Birch, Aspen, Pinus, recycled fibers, etc., their residues such as bark, sawdust, etc.Type: ApplicationFiled: November 23, 2017Publication date: October 3, 2019Applicant: FIBRIA CELULOSE S.A.Inventors: Heloisa Ogushi Romeiro RAMIRES, Braz José DEMUNER
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Patent number: 9828728Abstract: The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starches chemically modified by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources.Type: GrantFiled: July 13, 2015Date of Patent: November 28, 2017Assignee: Fibria Celulose S/AInventors: Romolo Ranocchia, Ademilson Massoquete, Danilo Oyakawa
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Patent number: 9267146Abstract: Modulating in planta expression of a gene encoding WALLDOF, a transcription factor involved in plant cell wall biogenesis, results in increased cell wall deposition and higher plant biomass density.Type: GrantFiled: August 21, 2009Date of Patent: February 23, 2016Assignee: FIBRIA CELULOSE S.A.Inventors: Paulo Arruda, Isabel Rodrigues Gerhardt
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Patent number: 9228182Abstract: In angiosperm and gymnosperm plants, overexpressing a SAMdc nucleotide sequence can decrease lignin content and, for plants with woody tissue, increase wood density.Type: GrantFiled: December 22, 2011Date of Patent: January 5, 2016Assignee: Fibria Celulose S.A.Inventors: Fabio Papes, Paulo Arruda, Isabel Rodrigues Gerhardt
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Patent number: 9096974Abstract: The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starch by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources.Type: GrantFiled: March 21, 2011Date of Patent: August 4, 2015Assignee: Fibria Celulose S/AInventors: Romolo Ranocchia, Ademilson Massoquete, Danilo Oyakawa
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Patent number: 9090893Abstract: The present invention relates to nucleic acid molecules corresponding to regulatory portions of genes whose expression is constitutive. The invention also relates to compositions and methods of using the same to regulate the expression, in a constitutive manner, of genes and/or any kind of nucleotide sequences in a plant. Nucleic acid molecules and its compositions include novel nucleotide sequences for constitutive promoter identified in and isolated from poplar (Populus spp). Methods for expressing genes and/or any kind of nucleotide sequences in a plant using the promoter sequences disclosed herein are provided. The methods comprise stably incorporating into the genome of a plant cell a nucleotide sequence operably linked to one or more of the constitutive promoters of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequence.Type: GrantFiled: December 13, 2012Date of Patent: July 28, 2015Assignee: FIBRIA CELULOSE S.A.Inventors: Fabio Papes, Paulo Arruda
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Patent number: 9080181Abstract: Nucleic acid constructs and methods are disclosed for modifying fiber length, plant height, and/or plant biomass in plant tissues. Plants are genetically engineered with constructs encoding an Arabidopsis thaliana wall-associated kinase gene, which alters fiber length and/or plant height when overexpressed under the control of a cambium/xylem preferred promoter. Plant transformants harboring a wall-associated kinase gene show increased fiber length, a trait that is thought to improve woody trees for pulping and papermaking.Type: GrantFiled: December 20, 2007Date of Patent: July 14, 2015Assignee: FIBRIA CELULOSE S.A.Inventors: Paulo Arruda, Isabel Rodrigues Gerhardt
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Patent number: 9029637Abstract: The present invention relates to nucleic acid molecules corresponding to regulatory portions of genes whose expression is predominant in cambium and/or xylem. The invention also relates to compositions and methods of using the same to regulate the expression, in a cambium/xylem-preferred manner, of genes and/or any kind of nucleotide sequences in a plant. Nucleic acid molecules and its compositions include novel nucleotide sequences for cambium/xylem-preferred promoters identified and isolated from poplar (Populus spp). Methods for expressing genes and/or any kind of nucleotide sequences in a plant using the promoter sequences disclosed herein are provided. The methods comprise stably incorporating into the genome of a plant cell a nucleotide sequence operably linked to a cambium/xylem-preferred promoter of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequence.Type: GrantFiled: March 28, 2005Date of Patent: May 12, 2015Assignee: Fibria Celulose S.A.Inventors: Fabio Papes, Isabel Rodrigues Gerhardt, Paulo Arruda
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Publication number: 20130228297Abstract: The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starch by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources.Type: ApplicationFiled: March 21, 2011Publication date: September 5, 2013Applicant: FIBRIA CELULOSE S/AInventors: Romolo Ranocchia, Ademilson Massoquete, Danilo Oyakawa