公开(公告)号：US20160115350A1

公开(公告)日：2016-04-28

申请号：US14987806

申请日：2016-01-05

Applicant: PRC-DeSoto International, Inc.

Inventor： STEVEN J. HOBBS ,  GREGORY J. MCCOLLUM ,  JUEXIAO CAI ,  MARFI ITO ,  LAWRENCE G. ANDERSON ,  RENHE LIN

IPC: C09D175/08 ,  C09D175/10 ,  C09D5/34

CPC classification number: C09D175/08 ,  C07C265/04 ,  C07C265/12 ,  C07D251/30 ,  C08G18/006 ,  C08G18/3857 ,  C08G18/5072 ,  C08G65/336 ,  C08G65/34 ,  C08G75/02 ,  C08G75/10 ,  C08G75/12 ,  C08G77/00 ,  C09D5/34 ,  C09D175/10 ,  C09J181/02

Abstract: Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.

公开(公告)号：US20140378649A1

公开(公告)日：2014-12-25

申请号：US13923941

申请日：2013-06-21

Applicant: PRC-DeSoto International, Inc.

Inventor： JUEXIAO CAI ,  LAWRENCE G. ANDERSON ,  MARFI ITO ,  RENHE LIN

IPC: C08G75/12

CPC classification number: C08G75/02 ,  C07C317/18 ,  C08G75/12 ,  C08L81/02 ,  C09D181/02 ,  C09J181/02

Abstract: The use of Michael addition curing chemistries in compositions comprising sulfur-containing polymers such as polythioethers and polysulfides useful in aerospace sealant applications are disclosed. Sulfur-containing adducts comprising terminal Michael acceptor groups are also disclosed. In particular, sulfur-containing polymers and sulfur containing Michael acceptor adducts having terminal 1-(ethylenesulfonyl)-n-(vinylsulfonyl)alkanol groups are disclosed.

Abstract translation: 公开了在包含含硫聚合物如聚硫醚和聚硫化物的组合物中使用迈克尔加成固化化学物质，其用于航空密封剂应用。 还公开了包含末端迈克尔受体基团的含硫加成物。 特别地，公开了具有末端1-（乙基磺酰基） - （乙烯基磺酰基）烷醇基团的含硫聚合物和含硫的Michael受体加合物。

公开(公告)号：US20140314960A1

公开(公告)日：2014-10-23

申请号：US14319191

申请日：2014-06-30

Applicant: PRC-DeSoto International, Inc.

Inventor： NAGARAJAN SRIVATSAN ,  ALFREDO REYES ,  SEAN MANION ,  JUEXIAO CAI ,  MARFI ITO ,  RENHE LIN

IPC: C09K3/10

CPC classification number: C09K3/1006 ,  C08G18/10 ,  C08G18/52 ,  C08G18/56 ,  C08G18/755 ,  C08G18/758 ,  C08G18/798 ,  C08G2190/00 ,  C08G18/281 ,  C08G18/3868

Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.

Abstract translation: 公开了包含聚甲醛 - 异氰酸酯预聚物和包含胺的固化剂的反应产物的聚脲组合物。 该组合物可用作航空航天应用中的密封剂。

公开(公告)号：US20200283663A1

公开(公告)日：2020-09-10

申请号：US16293831

申请日：2019-03-06

Applicant: PRC-DeSoto International, Inc.

Inventor： WEIBIN CUI ,  JUEXIAO CAI ,  RENHE LIN

IPC: C09K3/10 ,  C08G81/00 ,  C08L87/00 ,  B64G1/22

Abstract: Chemically resistant sealant compositions include high equivalent weight sulfur-containing prepolymers. Upon exposure to chemicals the properties of sealants prepared using the prepolymers exhibit excellent fuel and phosphate ester resistance.

公开(公告)号：US20170369737A1

公开(公告)日：2017-12-28

申请号：US15194607

申请日：2016-06-28

Applicant: PRC-DeSoto International, Inc.

Inventor： WEIBIN CUI ,  RENHE LIN

IPC: C09D181/02 ,  C08G18/67 ,  C08G18/75 ,  C08G75/045

CPC classification number: C09D181/02 ,  C08G18/6715 ,  C08G18/755 ,  C08G59/00 ,  C08G75/045 ,  C08G2190/00 ,  C08L81/02 ,  C09K3/1012 ,  C09K3/1021

Abstract: Urethane/urea-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing urethane/urea-containing bis(alkenyl) ether-containing polythioether prepolymers and/or urethane/urea-containing bis(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.

公开(公告)号：US20170369432A1

公开(公告)日：2017-12-28

申请号：US15194617

申请日：2016-06-28

Applicant: PRC-DeSoto International, Inc.

Inventor： WEIBIN CUI ,  RENHE LIN

IPC: C07C323/12 ,  C08G75/045 ,  C09K3/10

CPC classification number: C07C323/12 ,  C08G75/02 ,  C08G75/045 ,  C08G75/12 ,  C08G2190/00 ,  C09K3/1012 ,  C09K2003/1059

Abstract: Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.

公开(公告)号：US20170166689A1

公开(公告)日：2017-06-15

申请号：US14964785

申请日：2015-12-10

Applicant: PRC-DeSoto International, Inc.

Inventor： Hongying Zhou ,  JUEXIAO CAI ,  RENHE LIN

IPC: C08G59/68 ,  C09J5/06 ,  C09J163/00 ,  C09J163/04

CPC classification number: C08G59/686 ,  C08G16/00 ,  C08G75/02 ,  C08K5/00 ,  C08L81/00 ,  C08L81/02 ,  C09J5/06 ,  C09J163/00 ,  C09J163/04 ,  C09J2463/00

Abstract: Compositions comprising sulfur-containing prepolymers such as polythioether prepolymers, polyepoxides, and a blocked 1,8-diazabicyclo[5.4.0]undec-7-ene bicarbonate catalyst useful as aerospace sealants are disclosed. The compositions exhibit extended working time and the curing rate can be tailored for specific applications.

公开(公告)号：US20160186025A1

公开(公告)日：2016-06-30

申请号：US15060636

申请日：2016-03-04

Applicant: PRC-DeSoto International, Inc.

Inventor： LAWRENCE G. ANDERSON ,  JUEXIAO CAI ,  MARK P. BOWMAN ,  RENHE LIN

IPC: C09J181/02 ,  C09J5/00

CPC classification number: C09J181/02 ,  B05D5/00 ,  C08G75/00 ,  C08G75/02 ,  C08L63/04 ,  C08L81/00 ,  C08L81/02 ,  C09D4/00 ,  C09J5/00 ,  C09J181/00 ,  C09J2481/00

Abstract: Compositions comprising Michael acceptor-terminated sulfur-containing prepolymers, thiol-terminated sulfur-containing prepolymers, and e phosphine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life, cure rapidly following activation, and provide cured sealants having improved properties useful in aerospace sealant applications.

Abstract translation: 公开了包含Michael受体终止的含硫预聚物，硫醇封端的含硫预聚物和可用于航空航天密封剂应用的e膦催化剂的组合物。 组合物显示延长的使用期限，活化后快速固化，并提供具有改进的用于航空航天密封剂应用的性能的固化密封剂。

公开(公告)号：US20160160080A1

公开(公告)日：2016-06-09

申请号：US14560289

申请日：2014-12-04

Applicant: PRC-DeSoto International, Inc.

Inventor： JUEXIAO CAl ,  RENHE LIN

IPC: C09D181/02

CPC classification number: C09D181/02 ,  B32B27/00 ,  C08G75/02 ,  C09K3/1012

Abstract: Thiol-terminated polythioether compositions and sealants prepared using the thiol-terminated polythioether compositions that exhibit extended working time and that rapidly cures at room temperature at the end of the working time are disclosed.

Abstract translation: 公开了使用硫醇封端的聚硫醚组合物制备的硫醇封端的聚硫醚组合物和密封剂，该组合物显示出延长的工作时间并且在工作时间结束时在室温下快速固化。

公开(公告)号：US20140378650A1

公开(公告)日：2014-12-25

申请号：US13923903

申请日：2013-06-21

Applicant: PRC-DeSoto International, Inc.

Inventor： CHANDRA RAO ,  JUEXIAO CAI ,  RENHE LIN

IPC: C09K3/10 ,  C08G75/04

CPC classification number: C09K3/1012 ,  C07D251/34 ,  C08G75/00 ,  C08G75/045 ,  C08G75/06 ,  C08G75/12 ,  C08L81/02

Abstract: Bis(sulfonyl)alkanol-containing polythioethers, compositions containing bis(sulfonyl)alkanol-containing polythioethers, methods of synthesizing bis(sulfonyl)alkanol-containing polythioethers and the use of bis(sulfonyl)alkanol-containing polythioethers in aerospace sealant applications are disclosed. The bis(sulfonyl)alkanol-containing polythioethers have bis(sulfonyl)alkanol groups incorporated into the backbone of the polythioether. Cured sealant compositions comprising the bis(sulfonyl)alkanol-containing polythioethers exhibit enhanced properties suitable for aerospace sealant applications.

Abstract translation: 含有双（磺酰基）链烷醇的聚硫醚，含有双（磺酰基）链烷醇的聚硫醚的组合物，双（磺酰基）链烷醇的聚硫醚的合成方法和双（磺酰基）链烷醇的聚硫醚在航天密封剂中的应用。 含有（磺酰基）链烷醇的聚硫醚具有并入聚硫醚的主链中的双（磺酰基）链烷醇基团。 包含双（磺酰基）链烷醇的聚硫醚的固化密封剂组合物显示出适合于航空密封剂应用的增强的性能。