公开(公告)号：US20190169752A1

公开(公告)日：2019-06-06

申请号：US16324957

申请日：2017-08-14

Applicant: PRC-DeSoto International, Inc.

Inventor： Eric L. MORRIS

IPC: C23C22/78 ,  C23C22/56 ,  C23C22/66

Abstract: Disclosed is a conversion composition containing a trivalent chromium cation in an amount of 0.001 g/L to 20 g/L. Also disclosed is a system for treating a metal substrate that includes the conversion composition and a sealing composition comprising a lithium cation. Also disclosed is a method for treating a metal substrate that includes contacting at least a portion of a surface of the substrate with the conversion composition and then contacting at least a portion of the surface of the substrate with the sealing composition. Also disclosed is a substrate obtainable by treatment with the system and/or obtainable by the method of treating.

公开(公告)号：US20190169465A1

公开(公告)日：2019-06-06

申请号：US16324458

申请日：2017-08-08

Applicant: PRC-DeSoto International, Inc.

Inventor： Bruce Virnelson ,  Chandra Rao ,  Renhe Lin

IPC: C09D175/16 ,  C08G18/76 ,  C08G18/79 ,  C08G18/38 ,  C08G18/52 ,  C08G18/10

Abstract: Actinic radiation-curable compositions containing polythiols and urethane/urea-containing polyalkenyl prepolymers that can be used for aerospace coatings and sealants. The coatings can be applied to surfaces and rapidly cured.

公开(公告)号：US10047259B2

公开(公告)日：2018-08-14

申请号：US14560565

申请日：2014-12-04

Applicant: PRC-DeSoto International, Inc.

Inventor： Raquel Keledjian ,  Renhe Lin ,  Chandra Rao ,  Bruce Virnelson

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

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：US09988487B2

公开(公告)日：2018-06-05

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：US09683129B2

公开(公告)日：2017-06-20

申请号：US14560289

申请日：2014-12-04

Applicant: PRC-DeSoto International, Inc.

Inventor： Juexiao Cai ,  Renhe Lin

IPC: C09D181/02 ,  B32B27/00 ,  C08G75/02 ,  C09K3/10 ,  B01J13/00 ,  C09D181/00

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.

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：US09533798B2

公开(公告)日：2017-01-03

申请号：US13659074

申请日：2012-10-24

Applicant: PRC-DeSoto International, Inc.

Inventor： Bruce Virnelson ,  Raquel Keledjian ,  Renhe Lin ,  Chandra B. Rao

IPC: C08F2/48 ,  B65D41/00 ,  B32B37/12 ,  C08G75/02 ,  C08G75/12 ,  C09J181/02 ,  C08L81/02

CPC classification number: B65D41/005 ,  B32B37/1284 ,  C08G75/02 ,  C08G75/045 ,  C08G75/12 ,  C08L81/02 ,  C09J181/02

Abstract: UV curable sealants, method s for making the sealants, and method for using the sealants are disclosed. The UV curable sealants may be used in seal caps useful to seal fasteners in aerospace fuel tanks. The UV curable sealants may also be used to smooth defects in surfaces such as aerospace surfaces.

Abstract translation: 紫外线固化型密封剂，密封剂的制造方法以及密封剂的使用方法。 紫外线固化型密封剂可用于密封用于密封航空航天燃料箱中的紧固件的密封盖中。 UV可固化密封剂也可用于平滑表面如空间表面的缺陷。

公开(公告)号：US09518197B2

公开(公告)日：2016-12-13

申请号：US14964904

申请日：2015-12-10

Applicant: PRC-DeSoto International, Inc.

Inventor： Raquel Keledjian ,  Renhe Lin

IPC: C09D175/04 ,  C08G18/30 ,  C08G18/16 ,  C08G18/10 ,  C08G18/38 ,  C08G18/75 ,  C08G18/28 ,  C08G18/52 ,  C09J175/08 ,  C08L75/04 ,  C08G75/04 ,  C08L75/08 ,  C08G18/12

CPC classification number: C09D175/04 ,  C08G18/10 ,  C08G18/12 ,  C08G18/16 ,  C08G18/289 ,  C08G18/307 ,  C08G18/3868 ,  C08G18/3893 ,  C08G18/52 ,  C08G18/758 ,  C08G75/045 ,  C08G75/12 ,  C08G2190/00 ,  C08L75/04 ,  C08L75/08 ,  C09J175/08

Abstract: Cure-on-demand, moisture-curable, urethane-containing prepolymers having urethanes incorporated into a sulfur-containing prepolymer backbone and compositions thereof for use in sealant applications are disclosed. The cure-on-demand moisture-curable urethane-containing prepolymers are terminated with polyalkoxysilyl groups. The compositions contain a controlled-release moisture cure catalyst. Compositions containing the prepolymers provide cured sealants exhibiting improved tensile strength.

Abstract translation: 公开了具有并入到含硫预聚物主链中的聚氨酯的固化剂，可湿固化的，含氨基甲酸酯的预聚物，其用于密封剂应用中的组合物。 固化按需湿润固化的含氨基甲酸酯预聚物用聚烷氧基甲硅烷基封端。 组合物含有控释湿度固化催化剂。 含有预聚物的组合物提供表现出改善的拉伸强度的固化密封剂。

公开(公告)号：US20160257819A1

公开(公告)日：2016-09-08

申请号：US14640044

申请日：2015-03-06

Applicant: PRC-DeSoto International, Inc.

Inventor： Srikant Pathak ,  Chu Ran Zheng ,  Bruce Virnelson

IPC: C09D5/00 ,  B05D3/06 ,  C09K3/10 ,  C09D183/14 ,  C09D183/08

CPC classification number: C09D5/002 ,  B05D3/067 ,  B05D7/544 ,  C08G77/14 ,  C08G77/20 ,  C08G77/26 ,  C09D183/08 ,  C09D183/14 ,  C08L83/04

Abstract: Partially reacted alkoxysilane compositions, the use of partially reacted alkoxysilane compositions as adhesion-promoting primer coatings, and methods of using the partially reacted alkoxysilane compositions and coatings are disclosed.

Abstract translation: 公开了部分反应的烷氧基硅烷组合物，部分反应的烷氧基硅烷组合物用作粘合促进底漆涂层，以及使用部分反应的烷氧基硅烷组合物和涂料的方法。

公开(公告)号：US09382448B2

公开(公告)日：2016-07-05

申请号：US14472428

申请日：2014-08-29

Applicant: PRC-DeSoto International, Inc.

Inventor： Juexiao Cai ,  Emilia Serrano ,  Bruce Virnelson ,  Renhe Lin

IPC: C08G75/04 ,  C08G73/10 ,  C09D181/02 ,  C08K5/134 ,  C08K5/13 ,  C09D163/04 ,  C09D163/00

CPC classification number: C09D181/02 ,  C08G59/66 ,  C08G75/00 ,  C08K5/13 ,  C08K5/1345 ,  C08K5/49 ,  C08L63/04 ,  C08L81/00 ,  C08L81/02 ,  C09D163/00 ,  C09D163/04

Abstract: Thiol-terminated polythioether compositions and sealants prepared using the thiol-terminated polythioether compositions that exhibit enhanced retention of elongation following exposure to high temperature are disclosed. The enhanced retention of elongation is realized by incorporating certain phenolic antioxidants into the composition.

Abstract translation: 公开了硫醇封端的聚硫醚组合物和使用硫醇封端的聚硫醚组合物制备的密封剂，其在暴露于高温后表现出增强的伸长率的保留。 通过将某些酚类抗氧化剂掺入到组合物中来实现延长的增强保留。