公开(公告)号：US20150240122A1

公开(公告)日：2015-08-27

申请号：US14708314

申请日：2015-05-11

Applicant: PRC-DeSoto International, Inc.

Inventor： Chandra Rao ,  Juexiao Cai ,  Renhe Lin

IPC: C09D181/02 ,  C08G75/02 ,  C07C317/04

CPC classification number: C09D181/02 ,  C07C317/04 ,  C07C317/18 ,  C08F228/04 ,  C08G75/00 ,  C08G75/02 ,  C08G75/20 ,  C08G75/23 ,  C08L81/00 ,  C08L81/02 ,  C08L81/04

Abstract: Sulfone-containing polythioethers, compositions containing sulfone-containing polythioethers, methods of synthesizing sulfone-containing polythioethers and the use of sulfone-containing polythioethers in aerospace sealant applications are disclosed. The sulfone-containing polythioethers have sulfone groups incorporated into the backbone of the polythioether. Cured sealant compositions comprising the sulfone-containing polythioethers exhibit enhanced thermal resistance.

Abstract translation: 公开了含有砜的聚硫醚，含有砜的聚硫醚的组合物，含有砜的聚硫醚的合成方法和含有砜的聚硫醚在航天密封剂中的应用。 含砜的聚硫醚具有并入聚硫醚的主链中的砜基。 包含含砜聚硫醚的固化密封剂组合物表现出增强的耐热性。

公开(公告)号：US09062162B2

公开(公告)日：2015-06-23

申请号：US14065554

申请日：2013-10-29

Applicant: PRC-DeSoto International, Inc.

Inventor： Chandra Rao ,  Jun Deng ,  Renhe Lin

IPC: C08G18/28 ,  C08G75/04

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

Abstract: Metal ligand-containing prepolymers, compositions containing metal ligand-containing prepolymers, methods of synthesizing metal ligand-containing prepolymers and the use of metal ligand-containing prepolymers in aerospace sealant applications are disclosed. The metal ligand-containing prepolymers have metal ligands incorporated into the backbone of the prepolymer. Cured sealant compositions comprising the metal ligand-containing prepolymers exhibit enhanced properties suitable for aerospace sealant applications.

Abstract translation: 公开了含金属配体的预聚物，含有金属配体的预聚物的组合物，含金属配体的预聚物的合成方法以及在航天密封剂应用中使用含金属配体的预聚物。 含金属配体的预聚物具有掺入预聚物主链中的金属配体。 包含含金属配体的预聚物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。

公开(公告)号：US20150119549A1

公开(公告)日：2015-04-30

申请号：US14065499

申请日：2013-10-29

Applicant: PRC-DeSoto International, Inc.

Inventor： Chandra Rao ,  Renhe Lin

IPC: C08G75/04 ,  C09K3/10

CPC classification number: C08G75/045 ,  C08G75/12 ,  C08G2190/00 ,  C08L81/00 ,  C09K3/1012

Abstract: Sulfur-containing polymer adducts such as polythioethers, polysulfides, and sulfur-containing polyformals having terminal maleimide groups, and in particular, sulfur-containing polymers and sulfur containing adducts having terminal 1,1′-(methylenedi-4,1-phenylene)bismaleimide groups are disclosed. The adducts provide cured sealants having improved tensile strength and elongation and are useful as aerospace sealants.

Abstract translation: 具有末端马来酰亚胺基团的含硫聚合物加合物如聚硫醚，多硫化物和含硫聚合物，特别是含有1,1' - （亚甲基二亚甲基）双马来酰亚胺酯的含硫聚合物和含硫加合物 群体被公开。 加合物提供具有改善的拉伸强度和伸长率的固化密封剂，并且可用作航空密封剂。

公开(公告)号：US20140295088A1

公开(公告)日：2014-10-02

申请号：US14307548

申请日：2014-06-18

Applicant: PRC-DeSoto International, Inc.

Inventor： Stephen J. Hobbs ,  Marfi Ito ,  Juexiao Cai ,  Chandra Rao ,  Renhe Lin

IPC: C09K3/10

CPC classification number: C09K3/1021 ,  C08G4/00 ,  C08G18/10 ,  C08G18/3868 ,  C08G18/5072 ,  C08G18/755 ,  C08G18/758 ,  C08G18/798 ,  C08G18/8108 ,  C08G18/8116 ,  C08G2190/00 ,  C08L81/02 ,  C09K2003/1034 ,  C08G18/12 ,  C08G18/6685

Abstract: Disclosed are flexible polyamines, flexible amine-terminated polyformal adducts, flexible-amine-terminated polythioether adducts, compositions comprising flexible polyamines and isocyanate-terminated prepolymers, and compositions comprising flexible amine-terminated adducts and isocyanate-terminated prepolymers. Uses of the compositions as sealants, and particularly as aerospace sealants, are also disclosed.

Abstract translation: 公开了柔性多胺，柔性胺封端的聚甲醛加合物，柔性胺封端的聚硫醚加合物，包含柔性多胺和异氰酸酯封端的预聚物的组合物，以及包含柔性胺封端的加合物和异氰酸酯封端的预聚物的组合物。 还公开了组合物作为密封剂，特别是作为航空密封剂的用途。

公开(公告)号：US20140275461A1

公开(公告)日：2014-09-18

申请号：US13833827

申请日：2013-03-15

Applicant: PRC-DESOTO INTERNATIONAL, INC.

Inventor： Chandra Rao ,  Juexiao Cai ,  Renhe Lin

IPC: C08F228/04 ,  C07C317/18

CPC classification number: C09D181/02 ,  C07C317/04 ,  C07C317/18 ,  C08F228/04 ,  C08G75/00 ,  C08G75/02 ,  C08G75/20 ,  C08G75/23 ,  C08L81/00 ,  C08L81/02 ,  C08L81/04

Abstract: Sulfone-containing polythioethers, compositions containing sulfone-containing polythioethers, methods of synthesizing sulfone-containing polythioethers and the use of sulfone-containing polythioethers in aerospace sealant applications are disclosed. The sulfone-containing polythioethers have sulfone groups incorporated into the backbone of the polythioether. Cured sealant compositions comprising the sulfone-containing polythioethers exhibit enhanced thermal resistance.

Abstract translation: 公开了含有砜的聚硫醚，含有砜的聚硫醚的组合物，含有砜的聚硫醚的合成方法和含有砜的聚硫醚在航天密封剂中的应用。 含砜的聚硫醚具有并入聚硫醚的主链中的砜基。 包含含砜聚硫醚的固化密封剂组合物表现出增强的耐热性。

公开(公告)号：US20200317917A1

公开(公告)日：2020-10-08

申请号：US16373668

申请日：2019-04-03

Applicant: PRC-DeSoto International, Inc.

Inventor： Chandra Rao ,  Renhe Lin

IPC: C08L81/02 ,  C08K5/55 ,  C08L71/02 ,  C08K5/19 ,  C09K3/10

Abstract: Dual cure compositions include a combination of an organoborane complex and a radical oxidizing agent as co-catalysts. The compositions are curable under dark conditions and can be used to catalyze thiol-ene reactions. The compositions are useful as sealants.

公开(公告)号：US09777139B2

公开(公告)日：2017-10-03

申请号：US14922280

申请日：2015-10-26

Applicant: PRC-DeSoto International, Inc.

Inventor： Chandra Rao ,  Juexiao Cai ,  Renhe Lin

IPC: C08G63/02 ,  C08K5/375 ,  C08K5/378 ,  C09J181/02 ,  C09J5/00

CPC classification number: C08K5/375 ,  C07C323/16 ,  C07D251/34 ,  C08G75/06 ,  C08K5/378 ,  C08K7/00 ,  C08L81/02 ,  C08L81/04 ,  C09J5/00 ,  C09J181/02 ,  C09J2481/00

Abstract: Reactive antioxidants, antioxidant-containing prepolymers, compositions containing reactive antioxidants and antioxidant-containing prepolymers, methods of synthesizing reactive antioxidants and reactive antioxidant-containing prepolymers and the use of reactive antioxidants and antioxidant-containing prepolymers in aerospace sealant applications are disclosed. Reactive antioxidants and antioxidant-containing prepolymers can be added to a curable composition and react with a curing agent to become incorporated into the cured polymer network. Antioxidant-containing prepolymers have antioxidants incorporated into the backbone of the prepolymer. Cured sealant compositions comprising reactive antioxidants and antioxidant-containing prepolymers exhibit enhanced thermal resistance.

公开(公告)号：US20160304759A9

公开(公告)日：2016-10-20

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: C09J181/02 ,  C08G75/02

CPC classification number: C09J181/02 ,  C08G75/02 ,  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：US09422467B2

公开(公告)日：2016-08-23

申请号：US14307548

申请日：2014-06-18

Applicant: PRC-DeSoto International, Inc.

Inventor： Stephen J. Hobbs ,  Marfi Ito ,  Juexiao Cai ,  Chandra Rao ,  Renhe Lin

IPC: C08G18/28 ,  C09K3/10 ,  C08G75/12 ,  C08G18/10 ,  C08G4/00 ,  C08G18/50 ,  C08G18/75 ,  C08G18/79 ,  C08G18/81 ,  C08G18/38 ,  C08L81/02

CPC classification number: C09K3/1021 ,  C08G4/00 ,  C08G18/10 ,  C08G18/3868 ,  C08G18/5072 ,  C08G18/755 ,  C08G18/758 ,  C08G18/798 ,  C08G18/8108 ,  C08G18/8116 ,  C08G2190/00 ,  C08L81/02 ,  C09K2003/1034 ,  C08G18/12 ,  C08G18/6685

Abstract: Disclosed are flexible polyamines, flexible amine-terminated polyformal adducts, flexible-amine-terminated polythioether adducts, compositions comprising flexible polyamines and isocyanate-terminated prepolymers, and compositions comprising flexible amine-terminated adducts and isocyanate-terminated prepolymers. Uses of the compositions as sealants, and particularly as aerospace sealants, are also disclosed.

Abstract translation: 公开了柔性多胺，柔性胺封端的聚甲醛加合物，柔性胺封端的聚硫醚加合物，包含柔性多胺和异氰酸酯封端的预聚物的组合物，以及包含柔性胺封端的加合物和异氰酸酯封端的预聚物的组合物。 还公开了组合物作为密封剂，特别是作为航空密封剂的用途。

公开(公告)号：US20160208137A1

公开(公告)日：2016-07-21

申请号：US14593069

申请日：2015-01-09

Applicant: PRC-DeSoto International, Inc.

Inventor： Chandra Rao ,  Marfi Ito ,  Renhe Lin

IPC: C09D181/02 ,  B60K15/03 ,  C09D163/00

CPC classification number: C09D181/02 ,  B60K15/03 ,  B60K2015/03493 ,  C08G75/00 ,  C08G75/02 ,  C08L81/00 ,  C08L81/02 ,  C09D163/00

Abstract: Low-density compositions and sealants prepared from sulfur-containing prepolymer compositions that exhibit enhanced fuel resistance are disclosed. The low density and enhanced fuel resistance is realized by using polyphenylene sulfide fillers.

Abstract translation: 公开了由显示出增强的耐燃性的含硫预聚物组合物制备的低密度组合物和密封剂。 通过使用聚苯硫醚填料实现低密度和增强的耐燃料性。