公开(公告)号：US20220145122A1

公开(公告)日：2022-05-12

申请号：US17435880

申请日：2020-03-04

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nami TSUKAMOTO

IPC: C09D175/04 ,  C08G18/02 ,  C08G18/83 ,  C08L75/04 ,  C08L33/08 ,  C08L67/00 ,  C08L63/00 ,  C09D5/00 ,  C09D7/20

Abstract: Provided is a carbodiimide-based, waterborne resin crosslinking agent that can improve the storage stability of a waterborne resin composition including a waterborne resin together with the crosslinking agent and further also improve the water resistance and the solvent resistance of a cured product of the waterborne resin. A waterborne resin crosslinking agent-containing liquid and a waterborne resin composition are prepared using a waterborne resin crosslinking agent comprising a hydrophobic polycarbodiimide compound and a water-soluble organic compound as blending components, wherein the water-soluble organic compound is one or more selected from the group consisting of an alkylene glycol-based compound, a water-soluble polymer other than the alkylene glycol-based compound, and a surfactant other than the alkylene glycol-based compound or the water-soluble polymer.

公开(公告)号：US20230323004A1

公开(公告)日：2023-10-12

申请号：US18022281

申请日：2021-08-20

Applicant: Nisshinbo Chemical Inc.

Inventor： Nami TSUKAMOTO ,  Naoki NISHIKAWA

IPC: C08G18/02 ,  C08G18/79 ,  C08L79/00

CPC classification number: C08G18/025 ,  C08L79/00 ,  C08G18/79

Abstract: Provided is a waterborne resin crosslinking agent, as well as a waterborne resin crosslinking agent-containing liquid and a waterborne resin composition, including the waterborne resin crosslinking agent. The waterborne resin crosslinking agent of the present invention includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which the isocyanate groups at both terminals are each capped with a predetermined hydrophilic organic compound; the polycarbodiimide compound (B) has, as a structural unit, a diisocyanate compound having one cyclohexyl ring or one benzene ring, and has a structure in which the isocyanate groups at both terminals are each capped with a predetermined organic compound, and the polycarbodiimide compound (A) is in an amount of 5 to 90 parts by mass per 100 parts by mass in total of the polycarbodiimide compounds (A) and (B).

公开(公告)号：US20180371237A1

公开(公告)日：2018-12-27

申请号：US15739843

申请日：2016-07-06

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nami TSUKAMOTO ,  Nobuyuki MATSUMOTO ,  Ikuo TAKAHASHI ,  Takahiko ITOH

IPC: C08L75/02 ,  C08G18/75 ,  C08G18/09

Abstract: A carbodiimide-based aqueous resin crosslinking agent excellent in the storage stability in the coexistence of an aqueous resin, comprising a polycarbodiimide (A) having substituents derived from hydrophilic organic compounds at both terminals thereof, at least one of the substituents being a substituent derived from a hydrophilic organic compound having a molecular weight of 340 or more, and a polycarbodiimide (B) having substituents derived from organic compounds having a molecular weight of 300 or less at both terminals thereof, wherein the mass ratio [(B)/(A)] of the polycarbodiimide (B) to the polycarbodiimide (A) is from 20/80 to 95/5.

公开(公告)号：US20230348716A1

公开(公告)日：2023-11-02

申请号：US18022426

申请日：2021-08-20

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nami TSUKAMOTO ,  Naoki NISHIKAWA

IPC: C08L79/08 ,  C09D11/107 ,  C09D11/033 ,  C09J11/08 ,  C09J133/08

CPC classification number: C08L79/08 ,  C09D11/107 ,  C09D11/033 ,  C09J11/08 ,  C09J133/08

Abstract: Provided is a waterborne resin crosslinking agent and the like capable of obtaining a waterborne resin crosslinking agent-containing liquid excellent in storage stability and the like as well as a cured film (waterborne resin coating film) with sufficiently high gloss (relative-specular glossiness). The waterborne resin crosslinking agent including a polycarbodiimide compound (A) and a polycarbodiimide compound (B), wherein the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of more than 350, the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a compound having a molecular weight of 250 or less, represented by the following formula (1):


R1(OCHR2CH2)mOH  (1)

wherein R1 is an alkyl group, cycloalkyl group, or aryl group having 1 to 13 carbon atoms, R2 is a hydrogen atom, a methyl group, an ethyl group, or a propyl group, and m is a numeral of 1 to 4, and the polycarbodiimide compound (A) is in an amount of 5 to 95 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B).

公开(公告)号：US20230323007A1

公开(公告)日：2023-10-12

申请号：US18022299

申请日：2021-08-20

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nami TSUKAMOTO ,  Naoki NISHIKAWA

IPC: C08G18/28 ,  C08G18/02 ,  C09D5/02 ,  C09D7/47 ,  C09D11/03 ,  C09D11/102 ,  C09J11/06 ,  C09J175/12

CPC classification number: C08G18/282 ,  C08G18/025 ,  C09D5/022 ,  C09D7/47 ,  C09D11/03 ,  C09D11/102 ,  C09J11/06 ,  C09J175/12

Abstract: Provided is a waterborne resin crosslinking agent and the like capable of inhibiting lowering of gloss (relative specular glossiness) of cured films (waterborne resin coating films) after heating. The waterborne resin crosslinking agent includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of 340 or more; the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a monool compound having 3 to 18 carbon atoms; when the monool compound has 3 to 17 carbon atoms, the polycarbodiimide compound (A) is in an amount of 5 to 95 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B); and when the monool compound has 18 carbon atoms, the polycarbodiimide compound (A) is in an amount of 30 to 70 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B).

公开(公告)号：US20230323005A1

公开(公告)日：2023-10-12

申请号：US18022393

申请日：2021-08-20

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nami TSUKAMOTO ,  Naoki NISHIKAWA

IPC: C08G18/02 ,  C08G18/79 ,  C08L79/08 ,  C09D5/02 ,  C09D11/102 ,  C09J11/06 ,  C09J201/02

CPC classification number: C08G18/025 ,  C08G18/797 ,  C08L79/08 ,  C09D5/022 ,  C09D11/102 ,  C09J11/06 ,  C09J201/025

Abstract: A waterborne resin crosslinking agent is provided, wherein the waterborne resin crosslinking agent of the present invention includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which the isocyanate groups at both terminals are each capped with a predetermined hydrophilic organic compound; the polycarbodiimide compound (B) has a chain diisocyanate compound as a structural unit, and has a structure in which the isocyanate groups at both terminals are each capped with a predetermined organic compound, and the polycarbodiimide compound (A) is in an amount of 5 to 90 parts by mass per 100 parts by mass in total of the polycarbodiimide compounds (A) and (B).

公开(公告)号：US20220135770A1

公开(公告)日：2022-05-05

申请号：US17435741

申请日：2020-03-04

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nami TSUKAMOTO

IPC: C08K5/29 ,  C08K5/00 ,  C08G18/09 ,  C08G18/02 ,  C08G18/75 ,  C08G18/16 ,  C08G18/28 ,  C08G18/38 ,  C08K5/42

Abstract: Provided are a carbodiimide-based, waterborne resin crosslinking agent that not only is excellent in the storage stability when the crosslinking agent and a waterborne resin are caused to coexist, but also can improve physical properties such as solvent resistance and water resistance of a cured product of the waterborne resin, and a waterborne resin crosslinking agent-containing liquid and a waterborne resin composition comprising the same. The waterborne resin crosslinking agent of the present invention comprises a predetermined polycarbodiimide compound (A) having an oxyalkylene group, a predetermined polycarbodiimide compound (B), and a surfactant (C), each polycarbodiimide compound has a structure in which an isocyanate group is capped with a predetermined end-capping compound at each of both terminals, a total content of the oxyalkylene group in (A) is 15% by mass or more, a total content of the oxyalkylene group in (A) and (B) based on a total amount of (A) and (B) is 10% by mass or less, and a content of (C) is 0.1 to 20 parts by mass based on a total content of (A) and (B) of 100 parts by mass.

公开(公告)号：US20210139632A1

公开(公告)日：2021-05-13

申请号：US16605990

申请日：2018-04-18

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Naoki NISHIKAWA ,  Nami TSUKAMOTO ,  Kenichi YANAGISAWA ,  Yoshihiro YAMAZAKI

IPC: C08G18/09 ,  C08G18/08 ,  C08G18/10 ,  C08G18/28 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  C08L75/04 ,  C08L33/08 ,  C08L67/00

Abstract: There are provided a carbodiimide compound excellent in storage stability, and performance as a crosslinking agent, and a method for producing the same, and a resin composition excellent in the film forming properties and solvent resistance of a coating made at low temperature. A polycarbodiimide compound derived from an aliphatic diisocyanate compound having at least one primary isocyanate group, the polycarbodiimide compound having a structure in which all ends are capped with an organic compound having a functional group that reacts with an isocyanate group, carbodiimide group concentration A (%) and weight average molecular weight Mw satisfying the following formula (1), and a resin composition comprising the carbodiimide compound and an aqueous resin having a predetermined acid value at a predetermined ratio. (A/Mw)×1000≥0.55  (1)