公开(公告)号：WO2022243832A1

公开(公告)日：2022-11-24

申请号：PCT/IB2022/054519

申请日：2022-05-16

申请人： AQUAFIL S.P.A.

发明人： CECCHETTO, Michele ,  BERTOLLA, Maddalena ,  DAL MORO, Anacleto ,  MODESTI, Michele ,  GUERRA, Stefano

IPC分类号： C08J11/24 ,  C07C67/00 ,  C07C69/82

摘要： The present invention relates to a process for depolymerizing a material comprising polyethylene terephthalate (PET) by glycolysis with ethylene glycol (EG), comprising reacting the material comprising PET with EG in the presence of at least one catalyst so as to obtain a glycolized product containing bis (2- hydroxyethyl ) terephthalate (BHET) and/ or oligomers thereof, wherein said catalyst comprises an acetate salt of a metal chosen from : calcium, magnesium, aluminium and mixtures thereof. The catalyst can be prepared in situ by a reaction between acetic acid and a compound containing the metal.

公开(公告)号：WO2022171029A1

公开(公告)日：2022-08-18

申请号：PCT/CN2022/074943

申请日：2022-01-29

申请人： 上海科技大学

发明人： 李智 ,  孙嘉寅 ,  罗雨季

IPC分类号： C07C27/00 ,  C07C29/00 ,  C07C51/00 ,  C07C53/00 ,  C07C63/00 ,  C07C67/00 ,  C07C69/00 ,  C07C51/09 ,  C07C63/26 ,  C07C31/20

摘要： 本发明公开了一种聚酯的降解方法。具体地，本发明公开的聚酯的降解方法包括以下步骤：在羧酸和催化剂的作用下，将聚酯进行降解，即可；所述的聚酯包含二元羧酸与二元醇形成的重复单元；所述的催化剂为路易斯酸和/或磺酸类有机酸。本发明的降解方法适用范围广，所得的产物二羧酸分离简单且可用于聚酯的再合成，催化剂可回收再利用；所得的产物二醇二羧酸酯可经氢化还原后形成羧酸，与降解液中的催化剂反复用于聚酯的降解，有利于实现聚酯降解的工业效益最大化。

公开(公告)号：WO2022166540A1

公开(公告)日：2022-08-11

申请号：PCT/CN2022/071265

申请日：2022-01-11

申请人： 窦和瑞

发明人： 窦和瑞 DOU, Herui

IPC分类号： C07C67/00 ,  C07C67/08 ,  C07C69/60

摘要： 本发明公开了一种制备马来酸二醇酯的工艺方法，其特征在于包括有以下步骤：(1)将顺酐和低级脂肪醇在预酯化反应器中进行预酯化反应，得到相应水、醇、马来酸单醇酯、马来酸二醇酯以及少量顺酐的混合物；(2)将预酯化反应产生的反应混合物先进行闪蒸和精馏，再在酸性树脂的催化下和相应的低级脂肪醇通过反应精馏完成酯化，得到所需的马来酸二醇酯。与现有技术相比，本发明的制备马来酸二醇酯的工艺方法工艺污染小、能耗低和产品收率高，整个工艺操作平稳，避免了反应精馏塔塔盘上的超温，延长了催化剂的使用寿命。

公开(公告)号：WO2021190569A1

公开(公告)日：2021-09-30

申请号：PCT/CN2021/082762

申请日：2021-03-24

申请人： 曾裕峰

发明人： 曾裕峰 ,  魏海涛

IPC分类号： C07C69/66 ,  C07C69/73 ,  C07C69/732 ,  C07C67/00 ,  C07C67/03 ,  C08K5/134 ,  C08K5/13 ,  C08K5/04 ,  C08L23/02

摘要： 本发明公开了一种低迁移受阻酚抗氧化合物、制备方法及组合物，聚合物在生产加工或使用中，会受到光、氧、热等因素的影响而发生降解。往往通过添加一种或多种常用抗氧剂来增加其抗氧化能力，以此抑制和延缓其氧化降解速率。传统受阻酚类抗氧化合物结构，在聚合物中会有迁移现象。本发明受阻酚类抗氧化合物，具有更多单元受阻酚，可实现低萃取、低迁移的目标。

公开(公告)号：WO2020245724A1

公开(公告)日：2020-12-10

申请号：PCT/IB2020/055202

申请日：2020-06-02

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： HIRSCHBERG, Markus E. ,  HINTZER, Klaus ,  RÖSCHENTHALER, Gerd-Volker ,  TVERDOMED, Sergey N. ,  PAJKERT, Romana

IPC分类号： C07F7/18 ,  C07C67/00 ,  C08F220/24 ,  C08G65/00

摘要： The multifunctional compound is represented by formula X-C(R)RF-Y, in which X and Y are each independently -C(O)-O-M, -C(O)-HAL, -C(O)-NR 1 2 , -C≡N, -C(O)NR 1 -SO 2 -R f 1 -W, or a fluorinated alkenyl group that is optionally interrupted by one or more -O- groups. HAL is -F, -Cl, or -Br. R f 1 is a fluorinated alkylene group that is optionally interrupted by one or more -O- groups. W is -F, -SO 2 Z, -CF=CF 2 , -O-CF=CF 2 , or -O-CF 2 -CF=CF 2 . Z is -F, - Cl, -NR 1 2 , or -OM. Each R 1 is a hydrogen atom or alkyl having up to four carbon atoms. M is an alkyl group, a trimethylsilyl group, a hydrogen atom, a metallic cation, or a quaternary ammonium cation. R is a bromine, chloride, fluorine or hydrogen atom; and RF is a fluorinated alkenyl group that is unsubstituted or substituted by at least one chlorine atom, aryl group, or a combination thereof or RF is a fluorinated alkyl group or arylalkylenyl group that is substituted by bromine or iodine and uninterrupted or interrupted by at least one -O- group. A process for making the compound is also disclosed. A fluoropolymer made from the compound and a method of making the fluoropolymer are also disclosed.

公开(公告)号：WO2020148779A1

公开(公告)日：2020-07-23

申请号：PCT/IN2020/050041

申请日：2020-01-15

申请人： COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH

发明人： BOKADE, Vijay ,  NIPHADKAR, Prashant

IPC分类号： C07C67/00 ,  C13B40/00

摘要： The present invention relates to a process for the preparation of value added chemicals such as ethyl levulinate from a glucose or other sugars catalyzed by a mixture of a Lewis and a Bronsted acid catalyst.

公开(公告)号：WO2019027959A1

公开(公告)日：2019-02-07

申请号：PCT/US2018/044506

申请日：2018-07-31

申请人： EASTMAN CHEMICAL COMPANY

发明人： CHAKRABORTY, Sumit ,  ADAMS, Steven, J. ,  HEMBRE, Robert, Thomas ,  BARNICKI, Scott, Donald

IPC分类号： C07C67/00 ,  C07C69/06 ,  B01J31/18 ,  B01J31/20 ,  B01J31/02

摘要： Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of methanol to produce methyl formate and hydrogen. As both methanol and methyl formate are volatile materials, they can be readily separated from the catalyst by applying vacuum at room temperature. The hydrogen by-product of the reaction may be isolated and utilized as a feedstock in other chemical transformations.

公开(公告)号：WO2018112777A1

公开(公告)日：2018-06-28

申请号：PCT/CN2016/111223

申请日：2016-12-21

申请人： RHODIA OPERATIONS ,  LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE POITIERS

发明人： CHAPPAZ, Alban ,  JEROME, Francois ,  DE OLIVEIRA VIGIER, Karine ,  MULLER, Eric ,  LAI, Jonathan

IPC分类号： C07C67/00 ,  C07C69/716

CPC分类号： C07C67/00 ,  C07C69/716

摘要： The present invention is directed to a process for synthesizing at least one levulinate ester, said process comprising the reaction of furfuryl alcohol with at least one other alcohol in the presence of water and at least one catalyst, said furfuryl alcohol being present in a quantity of a least 5％by weight, based on the total weight of the alcohols, and said catalyst comprising at least one triflate ligand and at least one metal selected from bismuth, gallium, aluminum, tin and iron.

公开(公告)号：WO2018112776A1

公开(公告)日：2018-06-28

申请号：PCT/CN2016/111220

申请日：2016-12-21

申请人： RHODIA OPERATIONS ,  LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE POITIERS

发明人： CHAPPAZ, Alban ,  JEROME, Francois ,  DE OLIVEIRA VIGIER, Karine ,  MULLER, Eric ,  LAI, Jonathan

IPC分类号： C07C67/00 ,  C07C69/716

CPC分类号： C07C67/00 ,  C07C69/716

摘要： The present invention is directed to a process for synthesizing at least one levulinate ester, said process comprising the reaction of furfuryl alcohol with at least one other alcohol in the presence of water and at least one catalyst, said furfuryl alcohol being present in a quantity of a least 5％ by weight, based on the total weight of the alcohols, and said catalyst comprising at least one metal selected from bismuth and gallium.

公开(公告)号：WO2018009683A1

公开(公告)日：2018-01-11

申请号：PCT/US2017/040924

申请日：2017-07-06

申请人： EASTMAN CHEMICAL COMPANY

发明人： LESTER, Christopher Lee ,  GOETZ, Sarah Exley ,  BLAYNEY, Timothy Harold ,  ASHLEY, Gabrielle Rose ,  PAVLIN, Mark Stanley ,  ATKINS, Douglas Grant ,  LIU, Zhufang

IPC分类号： C09J133/06 ,  C08F120/14 ,  C08F120/18 ,  C08F120/20 ,  C07C67/00 ,  C08F2/38 ,  C08F8/04

摘要： The invention provides (meth)acrylic oligomers prepared from C1-C20 alkyl and C5-C20 cycloalkyl (meth)acrylates, wherein said oligomers have a Mn of about 300 g/mole to about 3,000 g/mole; a Mw of about 700 g/mole to about 6,000 g/mole; a Mz of about 900 g/mole to about 10,000 g/mole. The oligomers may have a Yellowness Index, according to ASTM E313 of less than 2. The oligomers of the invention are useful as tackifiers in adhesive compositions, but also are believed to be useful also in general polymer modification as plasticizers, leveling agents, viscosity reducers (i.e., rheology modifiers), and for increasing solids content in solvent-borne applications of all types with little detrimental impact on viscosity. The invention also provides adhesive compositions and laminate articles coated on at least one side with the adhesive compositions of the invention.

摘要翻译： 本发明提供由（甲基）丙烯酸C 1 -C 20烷基酯和C 5 -C 20环烷基酯制备的（甲基）丙烯酸低聚物，其中所述低聚物的Mn为约300克/摩尔至约3,000克/摩尔 ; 约700克/摩尔至约6,000克/摩尔的Mw; 约900克/摩尔至约10,000克/摩尔的Mz。 根据ASTM E313，低聚物可具有小于2的黄度指数。本发明的低聚物可用作粘合剂组合物中的增粘剂，但也被认为也可用于一般聚合物改性作为增塑剂，流平剂，降粘剂 （即流变改性剂）以及增加所有类型的溶剂型应用中的固体含量，而对粘度几乎没有不利影响。 本发明还提供了用本发明的粘合剂组合物在至少一面上涂覆的粘合剂组合物和层压制品。