公开(公告)号：US10544158B1

公开(公告)日：2020-01-28

申请号：US16373885

申请日：2019-04-03

申请人： COVESTRO LLC

发明人： Anthony R. Loveday ,  Jack R. Reese ,  Rick L. Adkins ,  David P. Zielinski

IPC分类号： C07D493/04 ,  C07C41/03 ,  B01J27/26 ,  C08G18/48

摘要： Processes are described for producing a polycyclic polyether polyol having a hydroxyl functionality of 1.5 to 6 and a number average molecular weight of 200 to 12,000 Da. The processes comprise alkoxylating a polyol starter comprising predominantly a polycyclic polyol with an alkylene oxide in the presence of a DMC catalyst.

公开(公告)号：US11566145B2

公开(公告)日：2023-01-31

申请号：US16373929

申请日：2019-04-03

申请人： COVESTRO LLC

发明人： Anthony R. Loveday ,  Jack R. Reese ,  Rick L. Adkins ,  David P. Zielinski ,  James A. Thompson-Colón ,  Alan D. Bushmire ,  Liang Chen ,  Chen Xu

IPC分类号： C08G18/73 ,  C09D175/04 ,  C08G18/32 ,  B29C37/00 ,  B29C70/28 ,  C08J5/04 ,  C08J7/04 ,  B29K309/08

摘要： Polyurethane coating compositions are disclosed that include an isocyanate-reactive component that includes a polycyclic polyether polyol that is the reaction product of a reaction mixture that includes a polycyclic polyol starter, and an alkylene oxide, as well as an isocyanate-functional component that includes a non-aromatic polyisocyanate. The polyurethane coating compositions may be particularly useful as a gel coat in the manufacture of glass fiber reinforced plastics.

公开(公告)号：US20170121225A1

公开(公告)日：2017-05-04

申请号：US14928108

申请日：2015-10-30

申请人： Covestro LLC

发明人： David P. Zielinski ,  Michael K. Jeffries

IPC分类号： C04B24/28 ,  C09K8/44

CPC分类号： C04B24/282 ,  C09K8/44 ,  C09K8/508

摘要： The present invention provides an oil or gas wellbore polymeric cement comprising the reaction product of an aliphatic isocyanate, a trimerization catalyst, and a catalyst retarder, wherein the reaction occurs in the wellbore at a temperature of at least 250° F. (121° C.). Also provided is a method of reducing fluid loss from an oil or gas well, comprising producing a polyisocyanurate cement by combining an aliphatic isocyanate, a trimerization catalyst, and a catalyst retarder within a wellbore at a temperature of at least 250° F. (121° C.). The various embodiments of the invention meet the controllability and minimized toxicity needed for this application. Standard aliphatic polyisocyanates reduce handling concerns while providing the reactivity response that fits this temperature range.

公开(公告)号：US20160200857A1

公开(公告)日：2016-07-14

申请号：US14926656

申请日：2015-10-29

申请人： Covestro LLC

发明人： Charles Todd Williams ,  Joseph G. Pierce ,  David P. Zielinski

IPC分类号： C08G18/79 ,  C08G18/34

CPC分类号： C08F124/00 ,  C08G18/3206 ,  C08G18/3215 ,  C08G18/341 ,  C08G18/672 ,  C08G18/7837 ,  C08G18/798 ,  C08J3/243 ,  C08J5/24 ,  C08J2375/04 ,  C08J2375/16 ,  C08K7/02 ,  C08K7/06 ,  C08K7/10 ,  C08L37/00 ,  C08L45/00 ,  C08L67/00 ,  C09D4/00 ,  C09D133/14 ,  C09D175/04 ,  C09D175/16 ,  C08F220/10

摘要： The present invention provides a dual-cure composition containing multifunctional polyols, uretdiones, peroxide curable monomers containing unsaturation and crosslinking agents. The dual-cure composition may be used to form a high modulus material useful as the matrix in a prepreg material and in composites. The present invention also relates to methods for the production of the dual-cure composition, prepreg materials comprising the dual-cure composition and a fibrous support, and composites made from the prepreg material.

摘要翻译： 本发明提供了含有多官能多元醇，脲二酮，含有不饱和键的过氧化物可固化单体和交联剂的双重固化组合物。 双重固化组合物可用于形成用作预浸料材料和复合材料中的基体的高模量材料。 本发明还涉及双重固化组合物的制备方法，包括双重固化组合物和纤维状载体的预浸料材料以及由预浸料材料制成的复合材料。

公开(公告)号：US20190203097A1

公开(公告)日：2019-07-04

申请号：US16037400

申请日：2018-07-17

申请人： Covestro LLC

发明人： David P. Zielinski ,  Michael Jeffries ,  Amy Maxin

IPC分类号： C09K8/44 ,  C09K8/508 ,  C09K8/035 ,  C09K8/54 ,  C08G18/73 ,  C08G18/48 ,  C08G18/22 ,  C08G18/18 ,  C08G18/16 ,  E21B33/138

CPC分类号： C09K8/44 ,  C08G18/161 ,  C08G18/1808 ,  C08G18/227 ,  C08G18/3206 ,  C08G18/4829 ,  C08G18/73 ,  C08G18/7831 ,  C08G18/7837 ,  C09K8/035 ,  C09K8/508 ,  C09K8/5086 ,  C09K8/516 ,  C09K8/54 ,  C09K8/5751 ,  E21B33/138

摘要： The present invention provides methods and materials for treating an oil and gas well by introducing a polyurethane composition into the well to plug perforations and other non-productive zones of an oil and gas well to greatly reduce or prevent the ingress of formation water during production. These methods include: (a) preparing a polyurethane composition by mixing a polyol-containing component and a polyisocyanate-containing component; and (b) introducing the polyurethane composition into the well. The polyol-containing component includes a polymeric polyol having a viscosity at 25° C. of no more than 1000 mPa·s and the isocyanate-containing component includes an unblocked (cyclo)aliphatic polyisocyanate polymer, optionally including allophanate groups, and having a viscosity at 25° C. of no more than 1000 mPa·s and at least 99% solids content.

公开(公告)号：US10000686B2

公开(公告)日：2018-06-19

申请号：US14132236

申请日：2013-12-18

申请人： Covestro LLC ,  Ecolab USA Inc.

发明人： David P. Zielinski ,  Alan Ekin ,  Michael K. Jeffries ,  Mario Roberto Rojas

IPC分类号： E21B33/138 ,  C09K8/518 ,  C09K8/516 ,  C09K8/035

CPC分类号： C09K8/516 ,  C09K8/035

摘要： Methods of treating a well bore within an underground formation are disclosed. These methods include: (a) preparing a treatment composition by mixing a polyol-containing component and a polyisocyanate-containing component; and (b) introducing the treatment composition into the well bore. The polyol-containing component includes a polymeric polyol having a viscosity at 25° C. of no more than 1000 mPa·s and the isocyanate-containing component includes an unblocked (cyclo)aliphatic polyisocyanate polymer including allophanate groups and having a viscosity at 25° C. and at least 99% solids of no more than 1000 mPa·s.

公开(公告)号：US20180118972A1

公开(公告)日：2018-05-03

申请号：US15472391

申请日：2017-03-29

申请人： Covestro LLC

发明人： David P. Zielinski ,  Mark D. Conner ,  William Ethan Allen Blanchard ,  Natalee Jo-Ann Smith

IPC分类号： C09D175/06 ,  C09D175/04 ,  C09D175/08 ,  C09K8/80 ,  C09K8/62 ,  E21B43/26 ,  E21B43/267

CPC分类号： C09D175/06 ,  C08G18/0819 ,  C08G18/722 ,  C08G18/73 ,  C08G18/755 ,  C09D7/20 ,  C09D175/04 ,  C09D175/08 ,  C09K8/62 ,  C09K8/805 ,  E21B43/26 ,  E21B43/267 ,  C08L71/02

摘要： The present invention provides compositions, methods, and systems for reducing the abrasive effect of proppants on pumping and transfer equipment. Slurries containing proppants coated with the composition of the present invention comprising a resin-containing dispersion comprising a resin-containing dispersion and at least one of a glycol and a cosolvent have a Miller number or SAR number as determined by ASTM G 75 of less than about 75 of less than about 50.

公开(公告)号：US09896620B2

公开(公告)日：2018-02-20

申请号：US15047108

申请日：2016-02-18

申请人： Covestro LLC

发明人： David P. Zielinski ,  Emery Yuhas ,  Yanan Chen ,  Derick Henderson ,  Mark Connor

IPC分类号： C09K8/80 ,  B05D7/00 ,  E21B43/267

CPC分类号： C09K8/805 ,  B05D7/00 ,  E21B43/267

摘要： The present invention provides for coating proppants, such as sand, with a resin-containing dispersion which dramatically reduces the dust generated during handling, for example in hydraulic fracturing, by protecting the surface of the particle from abrasion and degradation. Such resin-containing dispersion coated-sand may also reduce the wear on metal parts used in transporting such proppants.

公开(公告)号：US09580527B2

公开(公告)日：2017-02-28

申请号：US14926656

申请日：2015-10-29

申请人： Covestro LLC

发明人： Charles Todd Williams ,  Joseph G. Pierce ,  David P. Zielinski

IPC分类号： C08G18/32 ,  C08G18/62 ,  C08G18/74 ,  C08L75/04 ,  C08F124/00 ,  C08K7/02 ,  C08K7/06 ,  C08K7/10 ,  C08L37/00 ,  C08L45/00 ,  C08L67/00 ,  C08G18/34 ,  C09D133/14 ,  C09D175/04 ,  C08G18/67 ,  C08G18/78 ,  C08G18/79 ,  C09D175/16 ,  C09D4/00 ,  C08J3/24 ,  C08J5/24

CPC分类号： C08F124/00 ,  C08G18/3206 ,  C08G18/3215 ,  C08G18/341 ,  C08G18/672 ,  C08G18/7837 ,  C08G18/798 ,  C08J3/243 ,  C08J5/24 ,  C08J2375/04 ,  C08J2375/16 ,  C08K7/02 ,  C08K7/06 ,  C08K7/10 ,  C08L37/00 ,  C08L45/00 ,  C08L67/00 ,  C09D4/00 ,  C09D133/14 ,  C09D175/04 ,  C09D175/16 ,  C08F220/10

摘要： The present invention provides a dual-cure composition containing multifunctional polyols, uretdiones, peroxide curable monomers containing unsaturation and crosslinking agents. The dual-cure composition may be used to form a high modulus material useful as the matrix in a prepreg material and in composites. The present invention also relates to methods for the production of the dual-cure composition, prepreg materials comprising the dual-cure composition and a fibrous support, and composites made from the prepreg material.

摘要翻译： 本发明提供了含有多官能多元醇，脲二酮，含有不饱和键的过氧化物可固化单体和交联剂的双重固化组合物。 双重固化组合物可用于形成用作预浸料材料和复合材料中的基体的高模量材料。 本发明还涉及双重固化组合物的制备方法，包括双重固化组合物和纤维状载体的预浸料材料以及由预浸料材料制成的复合材料。

公开(公告)号：US20210253772A1

公开(公告)日：2021-08-19

申请号：US16792939

申请日：2020-02-18

申请人： Covestro LLC

发明人： Alan Ekin ,  David P. Zielinski

IPC分类号： C08G18/00 ,  C09D175/00 ,  C08G18/73

摘要： A polyoxazolidinone composition can include a reaction product of 1,5-pentamethylene diisocyanate-based polyisocyanate and poly-functional epoxide, wherein the 1,5-pentamethylene diisocyanate-based polyisocyanate and the poly-functional epoxide are combined at an equivalent ratio of from about 0.5:1 to about 1.5:1 isocyanate equivalents to epoxide equivalents in the presence of a reaction catalyst.