公开(公告)号：US20190177533A1

公开(公告)日：2019-06-13

申请号：US16302800

申请日：2017-06-06

Applicant: DEXERIALS CORPORATION

Inventor： Kazunobu KAMIYA

IPC: C08L63/00 ,  C08J7/04

Abstract: Provided is a latent curing agent, including: porous particles formed of a polyurea resin and supporting an aluminum chelate and an aryl silanol compound; and a coating film over the surface of the porous particles, the coating film being formed of a cured product of an alicyclic epoxy resin.

公开(公告)号：US20230279217A1

公开(公告)日：2023-09-07

申请号：US18007335

申请日：2022-02-02

Applicant: DEXERIALS CORPORATION

Inventor： Takeshi NISHIO ,  Shunsuke TSUDA ,  Kazunobu KAMIYA

IPC: C08L63/00 ,  C08G59/24 ,  C08G59/06 ,  C08G59/70

CPC classification number: C08L63/00 ,  C08G59/24 ,  C08G59/06 ,  C08G59/70

Abstract: Provided is a cationic curing agent including porous particles and a mixture carried on the porous particles. The mixture includes a compound represented by Formula (1) below in which R1 to R3 are identical and R1 to R6 are identical and a compound represented by Formula (1) below in which at least one of R1 to R6 is different.




In Formula (1), R1 to R3 are each an optionally branched alkyl group having from 1 to 18 carbon atoms, or a phenyl group that may have a substituent, and R4 to R6 are each a hydrogen atom, an optionally branched alkyl group having from 1 to 4 carbon atoms, a halogenoalkyl group, an alkoxy group, or a phenoxy group that may have a substituent.

公开(公告)号：US20240026149A1

公开(公告)日：2024-01-25

申请号：US18256487

申请日：2021-12-07

Applicant: DEXERIALS CORPORATION

Inventor： Kazunobu KAMIYA

IPC: C08L63/00 ,  C08G59/70 ,  C08G59/40 ,  C08K5/5419

CPC classification number: C08L63/00 ,  C08G59/70 ,  C08G59/4007 ,  C08K5/5419

Abstract: Provided is a curing agent that includes a curing catalyst, and an aliphatic cyclic polyolefin resin disposed on a surface of the curing catalyst. The curing catalyst includes porous polyurea particles each bearing an aluminum chelating compound, or a water-insoluble catalyst powder having a solubility of 5% by mass or less relative to water.

公开(公告)号：US20210214489A1

公开(公告)日：2021-07-15

申请号：US17055350

申请日：2019-06-07

Applicant: Dexerials Corporation

Inventor： Kazunobu KAMIYA ,  Hiroki SHIBUYA

IPC: C08G59/70 ,  C08G59/40 ,  C08J3/24 ,  C08J3/28 ,  C08K7/22

Abstract: A cationic curable composition that generates a silanol group by light irradiation and is cured by heat, the cationic curable composition including: a cationic curable component; porous particles holding an aluminum chelate; and a photodegradable silicon compound that generates a silanol group by photodegradation.

公开(公告)号：US20170253694A1

公开(公告)日：2017-09-07

申请号：US15509025

申请日：2015-08-31

Applicant: DEXERIALS CORPORATION

Inventor： Kazunobu KAMIYA

IPC: C08G59/70 ,  C08G59/24 ,  C08K5/5415 ,  C08G59/18

CPC classification number: C08G59/70 ,  C08G59/188 ,  C08G59/245 ,  C08G59/40 ,  C08K5/5415

Abstract: An aluminum chelate-based latent curing agent for curing a thermosetting epoxy resin, in which an aluminum chelate-based curing agent is held in a porous resin obtained by, at the same time, subjecting a polyfunctional isocyanate compound to interfacial polymerization and subjecting a radical polymerizable compound to radical polymerization in the presence of a radical polymerization initiator, and the surface of the aluminum chelate-based latent curing agent has been subjected to inactivation treatment with an alkoxysilane coupling agent. An alkylalkoxysilane is preferred as the alkoxysilane coupling agent. The radical polymerizable compound preferably contains a polyfunctional radical polymerizable compound.

公开(公告)号：US20250011582A1

公开(公告)日：2025-01-09

申请号：US18710406

申请日：2022-11-08

Applicant: DEXERIALS CORPORATION

Inventor： Kazunobu KAMIYA

IPC: C08K9/10 ,  B01J13/04 ,  C08G59/40 ,  C08G59/70 ,  C08K5/00 ,  C08K5/5415

Abstract: A latent curing agent includes porous particles retaining an aluminum chelate compound; and a coating on a surface of the porous particles, the coating containing a polyolefin resin, and a silane coupling agent having an isocyanate group.

公开(公告)号：US20220098357A1

公开(公告)日：2022-03-31

申请号：US17429984

申请日：2020-01-31

Applicant: DEXERIALS CORPORATION

Inventor： Kazunobu KAMIYA

IPC: C08G18/38 ,  C08G18/76 ,  C09D175/04

Abstract: Provided is a latent curing agent, including: porous particles supporting an aluminum chelate compound; and a coating film over surfaces of the porous particles, the coating film containing an aluminum chelate compound and a polymer that contains at least one of a urea bond and an urethane bond, wherein a content of an active aluminum chelate compound is 20% by mass or greater.

公开(公告)号：US20180371155A1

公开(公告)日：2018-12-27

申请号：US16061153

申请日：2016-10-12

Applicant: DEXERIALS CORPORATION

Inventor： Kazunobu KAMIYA

IPC: C08G59/70 ,  C08G59/18 ,  C08G59/24 ,  C08G59/40 ,  C08K5/5415

Abstract: An aluminum-chelate-based latent curing agent is capable of showing excellent solvent resistance and excellent storage stability at room temperature without impairing low temperature rapid curability of resin composition, when preparing one-pack type thermosetting epoxy resin composition by blending aluminum-chelate-based latent curing agent holding aluminum-chelating agent on porous resin particles obtained by subjecting polyfunctional isocyanate compound to interfacial polymerization into alicyclic epoxy resin showing extremely high cationic polymerizability. Aluminum-chelate-based latent curing agent for curing thermosetting epoxy resin is configured such that aluminum-chelating agent is held on porous resin obtained by subjecting polyfunctional isocyanate compound to interfacial polymerization, and that surface activity inhibition treatment is performed by epoxy-alkoxy-silane coupling agent.