公开(公告)号：US20170044399A1

公开(公告)日：2017-02-16

申请号：US14822123

申请日：2015-08-10

Applicant: PRC-DeSoto International, Inc.

Inventor： BRUCE VIRNELSON ,  RENHE LIN

IPC: C09D181/04 ,  C09D161/02 ,  B05D7/00 ,  C09D181/02

CPC classification number: C09D181/04 ,  B05D7/54 ,  B64G1/00 ,  C09D181/02 ,  F16B47/003

Abstract: Sealant systems that are pre-applied to a part to be sealed include a layer of an uncured moisture-curable sealant and a frangible barrier coating applied over the uncured moisture-curable sealant. During assembly, the barrier coating breaks to expose the moisture-curable sealant to moisture to initiate the curing reaction. The moisture-curable sealant systems are suitable for aerospace applications and include sulfur-containing prepolymers. Various curing chemistries can be used.

Abstract translation: 预先施加到要密封的部件上的密封剂系统包括未固化的可湿气固化的密封剂层和施加在未固化的可湿气固化的密封剂上的易碎的阻隔涂层。 在组装期间，阻隔涂层断裂以将湿气固化的密封剂暴露于水分以引发固化反应。 可湿固化的密封剂系统适用于航空航天应用，包括含硫预聚物。 可以使用各种固化化学物质。

公开(公告)号：US20150315416A1

公开(公告)日：2015-11-05

申请号：US14727672

申请日：2015-06-01

Applicant: PRC-DeSoto International, Inc.

Inventor： CHARLES M. KANIA ,  RENHE LIN ,  CHANDRA B. RAO

IPC: C09D181/02 ,  C08G75/02 ,  C07D251/30 ,  C09D163/00 ,  C09D163/04

CPC classification number: C09D181/02 ,  C07D251/30 ,  C08G75/02 ,  C08G75/045 ,  C08G75/12 ,  C08L81/02 ,  C09D163/00 ,  C09D163/04

Abstract: Disclosed are poilythioethers that are the reaction product of reactants that include: a) an isocyanurate-containing trithiol; b) a polythiol different from (a); and c) a diene. Also disclosed are compositions, such as sealant compositions, that include such polythioethers.

Abstract translation: 公开了作为反应物的反应产物的硫代醚，其包括：a）含异氰脲酸酯的三硫醇; b）不同于（a）的多硫醇; 和c）二烯。 还公开了包括这种聚硫醚的组合物，例如密封剂组合物。

公开(公告)号：US20150252233A1

公开(公告)日：2015-09-10

申请号：US14200630

申请日：2014-03-07

Applicant: PRC-DeSoto International, Inc.

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

IPC: C09J181/02

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：US20190382532A1

公开(公告)日：2019-12-19

申请号：US16347410

申请日：2017-11-03

Applicant: PRC-DeSoto International, Inc.

Inventor： WEIBIN CUI ,  RENHE LIN

IPC: C08G75/045 ,  C09K3/10 ,  C09D181/02

Abstract: Sulfur-containing poly(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 sulfur-containing poly(alkenyl) ether-containing polythioether prepolymers and/or sulfur-containing poly(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.

公开(公告)号：US20150183806A1

公开(公告)日：2015-07-02

申请号：US14656743

申请日：2015-03-13

Applicant: PRC-DeSoto International, Inc.

Inventor： Steven J. Hobbs ,  Gregory J. MCCOLLUM ,  JUEXIAO CAI ,  MARFI ITO ,  LAWRENCE G. ANDERSON ,  RENHE LIN

IPC: C07F7/08 ,  C09J159/00

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：US20150099858A1

公开(公告)日：2015-04-09

申请号：US14565482

申请日：2014-12-10

Applicant: PRC-DeSoto International, Inc.

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

IPC: C09J181/02

CPC classification number: C09J181/02 ,  C08G75/02 ,  C08G75/045 ,  C08G75/12 ,  C08L81/02

Abstract: Compositions comprising sulfur-containing polymers such as polythioethers, Michael acceptors, and controlled release amine catalysts employing Michael addition curing chemistries useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.

Abstract translation: 公开了包含含硫聚合物如聚硫醚，迈克尔受体和使用迈克尔加成固化化学物质的控制释放胺催化剂的组合物，其用于航空密封剂应用。 组合物具有延长的适用期，并且固化速率可以针对具体应用进行调整。

公开(公告)号：US20190211244A1

公开(公告)日：2019-07-11

申请号：US16355556

申请日：2019-03-15

Applicant: PRC-DeSoto International, Inc.

Inventor： RAQUEL KELEDJIAN ,  RENHE LIN ,  CHANDRA RAO ,  BRUCE VIRNELSON

IPC: C09J181/02 ,  C08G75/12 ,  C08G75/02 ,  C08G75/045 ,  C08L81/02

CPC classification number: C09J181/02 ,  C08G75/02 ,  C08G75/045 ,  C08G75/12 ,  C08L81/02

Abstract: Disclosed are methods for making a cured sealant. The methods include depositing an uncured sealant composition on a substrate and exposing the uncured sealant composition to actinic radiation to provide a cured sealant. The uncured sealant composition includes a thiol-terminated polythioether, a polyene comprising a polyvinyl ether and/or a polyallyl compound, and a hydroxy-functional vinyl ether. Related sealant compositions are also disclosed.

公开(公告)号：US20180194979A1

公开(公告)日：2018-07-12

申请号：US15403623

申请日：2017-01-11

Applicant: PRC-DESOTO INTERNATIONAL, INC.

Inventor： WEIBIN CUI ,  RENHE LIN

IPC: C09J181/02 ,  C08G75/02

CPC classification number: C09J181/02 ,  C08G75/02 ,  C08G75/12

Abstract: Thiol-terminated polythioether compositions and sealants exhibit an extended working time and rapidly cure at room temperature at the end of the working time are disclosed. The compositions comprise a combination of pyridine catalysts.

公开(公告)号：US20150344631A1

公开(公告)日：2015-12-03

申请号：US14794855

申请日：2015-07-09

Applicant: PRC-DeSoto International, Inc.

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

IPC: C08G75/10 ,  C07C265/04 ,  C09J181/02 ,  C07C265/12

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.

Abstract translation: 公开了多元官能的含硫聚合物，其是含硫二醇，每多元醇分子含有至少三个羟基的多元醇和醛，酮或其组合的反应产物。 还公开了包含多官能含硫聚合物的密封剂组合物。

公开(公告)号：US20180244966A1

公开(公告)日：2018-08-30

申请号：US15967608

申请日：2018-05-01

Applicant: PRC-DeSoto International, Inc.

Inventor： RAQUEL KELEDJIAN ,  RENHE LIN ,  CHANDRA RAO ,  BRUCE VIRNELSON

IPC: C09J181/02 ,  C08L81/02 ,  C08G75/02 ,  C08G75/12

CPC classification number: C09J181/02 ,  C08G75/02 ,  C08G75/045 ,  C08L81/02

Abstract: Disclosed are methods for making a cured sealant. The methods include depositing an uncured sealant composition on a substrate and exposing the uncured sealant composition to actinic radiation to provide a cured sealant. The uncured sealant composition includes a thiol-terminated polythioether, a polyene comprising a polyvinyl ether and/or a polyallyl compound, and a hydroxy-functional vinyl ether. Related sealant compositions are also disclosed.