公开(公告)号：US20140148572A1

公开(公告)日：2014-05-29

申请号：US14170038

申请日：2014-01-31

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

发明人： Zhendong Zhao ,  Yuxiang Chen ,  Liangwu Bi ,  Yan Gu ,  Dongmei Li ,  Jing Wang ,  Yanju Lu

IPC分类号： C08H99/00

CPC分类号： C08H99/00 ,  C07B41/08 ,  C07C2603/26 ,  C08H8/00

摘要： A method for preparing pimaric acid type resin acids includes: step (1) adding refined resin acid, turpentine, or rosin along with maleic anhydride at a mass ratio of 1:0.3-1.5 into a reaction bottle, dissolving the ingredients into a C1-C10 lower fatty acid solvent, the mass ratio of the C1-C10 low fatty acid to refined resin acid is 0.05-30:1, then carrying out additional reaction by heating directly or with assistance of a microwave, subsequently cooling, crystallizing, filtering, and washing; and step (2) combining the filtrates collected in step (1), stripping the solvent by vacuum distillation to obtain pimaric acid type resin acid coarse product, dissolving the resulting coarse product in NaOH aqueous solution to prepare aqueous solution of pimaric acid type resin acid salt, adjusting the pH to 6-14 with a mineral acid or an organic acid, and either directly purifying or acidifying followed by purifying to obtain the final product.

摘要翻译： 制备海松酸型树脂酸的方法包括：步骤（1）将质量比为1:0.3-1.5的精制树脂酸，松节油或松香与马来酸酐加入到反应瓶中，将成分溶解在C1- C10低级脂肪酸溶剂，C1-C10低级脂肪酸与精制树脂酸的质量比为0.05-30:1，然后直接加热或在微波辅助下进行附加反应，随后冷却，结晶，过滤， 洗涤; 和步骤（2）将步骤（1）中收集的滤液合并，通过真空蒸馏除去溶剂，得到海松酸型树脂酸粗产物，将所得粗产物溶解在NaOH水溶液中，制备海松酸型树脂酸水溶液 盐，用无机酸或有机酸将pH调节至6-14，直接纯化或酸化，然后纯化，得到最终产物。

公开(公告)号：US11802169B2

公开(公告)日：2023-10-31

申请号：US16960895

申请日：2019-08-16

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

发明人： Kui Wang ,  Jianchun Jiang ,  Yanyan Liu ,  Junming Xu ,  Min Wei ,  Linshan Wei ,  Ruizhen Wang

IPC分类号： C08B37/00

CPC分类号： C08B37/0057

摘要： The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.

公开(公告)号：US20220127402A1

公开(公告)日：2022-04-28

申请号：US17423118

申请日：2020-05-26

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS CAF

发明人： Fuxiang CHU ,  Jifu WANG ,  Chuanwei LU ,  Chunpeng WANG

IPC分类号： C08F251/02 ,  B33Y70/10 ,  C08G18/63 ,  C08J3/075 ,  B29C64/129 ,  B33Y10/00 ,  B33Y40/20

摘要： A method for preparing a biomass-based conductive hydrogel by 3D printing is provided. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70° C. Then, diisocyanate in an amount of 5-10 wt % of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt % alkaline solution at 5-60° C. for 0.1-10 hours to obtain the biomass-based conductive hydrogel.

公开(公告)号：US20220002446A1

公开(公告)日：2022-01-06

申请号：US16960895

申请日：2019-08-16

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

发明人： Kui Wang ,  Jianchun Jiang ,  Yanyan Liu ,  Junming Xu ,  Min Wei ,  Linshan Wei ,  Ruizhen Wang

IPC分类号： C08B37/00

摘要： The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.

公开(公告)号：US10674723B2

公开(公告)日：2020-06-09

申请号：US15793995

申请日：2017-10-26

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

发明人： Zhendong Zhao ,  Shichao Xu ,  Shouji Zhu ,  Jing Wang ,  Liangwu Bi ,  Yuxiang Chen ,  Yanju Lu ,  Yan Gu

IPC分类号： A01N33/04 ,  C07C251/24 ,  A01N35/10 ,  C07C251/14 ,  C07C249/02 ,  C07C319/20 ,  G01R33/46

摘要： This invention discloses a type of 1,8-bis(Schiff base)-p-menthane derivatives as well as their preparation method and applications. The reaction of 1,8-diamino-p-menthane with a substituted benzaldehyde was carried out in a polar organic solvent at 0° C.-75° C. for 1-48 h. After the completion of the reaction, part of the solvent was distilled off to perform recrystallization to get a 1,8-bis(Schiff base)-p-menthane derivative, whose pre-emergence herbicidal activity against ryegrass was determined by using the Petri dish seed germination method. The 1,8-bis(Schiff base)-p-menthane derivatives, obtained with this method in high yield and mild reaction conditions, have a good inhibitory effect on the growth of annual ryegrass, and low toxicity.

公开(公告)号：US11492435B2

公开(公告)日：2022-11-08

申请号：US17423118

申请日：2020-05-26

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS CAF

发明人： Fuxiang Chu ,  Jifu Wang ,  Chuanwei Lu ,  Chunpeng Wang

IPC分类号： C08F251/02 ,  B33Y10/00 ,  B29C64/129 ,  B29C64/30 ,  B33Y40/20 ,  B33Y70/10 ,  C08G18/63 ,  C08J3/075

摘要： A method for preparing a biomass-based conductive hydrogel by 3D printing is provided. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70° C. Then, diisocyanate in an amount of 5-10 wt % of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt % alkaline solution at 5-60° C. for 0.1-10 hours to obtain the biomass-based conductive hydrogel.

公开(公告)号：US20180110219A1

公开(公告)日：2018-04-26

申请号：US15793995

申请日：2017-10-26

申请人： INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF

发明人： Zhendong ZHAO ,  Shichao XU ,  Shouji ZHU ,  Jing WANG ,  Liangwu BI ,  Yuxiang CHEN ,  Yanju LU ,  Yan GU

IPC分类号： A01N33/04 ,  C07C251/14

摘要： This invention discloses a type of 1,8-bis(Schiffbase)-p-menthane derivatives as well as their preparation method and applications. The reaction of 1,8-diamino-p-menthane with a substituted benzaldehyde was carried out in a polar organic solvent at 0° C.-75° C. for 1-48 h. After the completion of the reaction, part of the solvent was distilled off to perform recrystallization to get a 1,8-bis(Schiff base)-p-menthane derivative, whose pre-emergence herbicidal activity against ryegrass was determined by using the Petri dish seed germination method. The 1,8-bis(Schiff base)-p-menthane derivatives, obtained with this method in high yield and mild reaction conditions, have a good inhibitory effect on the growth of annual ryegrass, and low toxicity.