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1.发明申请公开(公告)号：US20210395428A1
公开(公告)日：2021-12-23
申请号：US17288755
申请日：2019-10-28
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Kenichi YANAGISAWA
Abstract: Provided are a polyester resin modifying agent, a method for producing the same, and a polyester resin composition including the modifying agent, the polyester resin modifying agent including a polycarbodiimide compound, being capable of improving hydrolysis resistance of a polyester resin, having a small content of a carbodiimidizing catalyst having been used in producing the polyester resin modifying agent, and having suppressed yellowness. Provided are a polyester resin modifying agent in which a polycarbodiimide compound obtained by reacting an aliphatic diisocyanate, an isocyanate-terminal capping agent, and a carbodiimidizing catalyst is included, a content of the carbodiimidizing catalyst falls within a predetermined range, and a yellowness index (YI) is less than 20; a method for producing the polyester resin modifying agent; and a polyester resin composition.
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公开(公告)号：US20210061756A1
公开(公告)日：2021-03-04
申请号：US16979321
申请日：2019-03-12
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Nobuyuki MATSUMOTO , Kenichi YANAGISAWA
IPC: C07C267/00
Abstract: A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an inorganic alkali metal compound (B) and at least one of a phase transfer catalyst (C), a compound (D-1) represented by general formula (2-1), and a compound (D-2) represented by general formula (2-2).
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公开(公告)号：US20210009512A1
公开(公告)日：2021-01-14
申请号：US16979484
申请日：2019-03-12
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Nobuyuki MATSUMOTO , Kenichi YANAGISAWA
IPC: C07C267/00 , B01J31/04 , B01J31/08 , B01J31/12 , C08G18/02
Abstract: A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an organic alkali metal compound (B) having Lewis basicity.
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4.发明申请公开(公告)号：US20200017628A1
公开(公告)日：2020-01-16
申请号：US16465391
申请日：2017-11-22
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Kimiyo BANNO , Kenichi YANAGISAWA
Abstract: Disclosed is a carboxy group-containing aqueous resin composition containing a carboxy group-containing aqueous resin and a polycarbodiimide compound (X) represented by the following general formula (1): wherein R1 represents a residue obtained by removing a functional group capable of reacting with an isocyanate from a hydrophilic compound having the functional group capable of reacting with an isocyanate; R2 represents a divalent residue obtained by removing isocyanate groups from a diisocyanate compound; R3 represents a divalent residue obtained by removing hydroxy groups from a glycol compound; X represents a group to be formed through a reaction between the hydrophilic compound and the diisocyanate compound; n1 represents a number of 1 to 10; n2 represents a number of 1 to 10; m represents a number of 1 to 5; and plural R1's may be the same or different and plural R2's may be the same or different.
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Patent Agency Ranking
公开(公告)号：US20210395486A1
公开(公告)日：2021-12-23
申请号：US17288763
申请日：2019-10-28
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Kenichi YANAGISAWA , Takahiro SASAKI , Saori KOTANI
IPC: C08K5/29 , C08L67/00 , C07C267/00
Abstract: Provided are a polycarbodiimide compound and a polyester resin composition and polyester resin modifier using the polycarbodiimide compound, the polycarbodiimide compound having a small amount of residual amine and having good processability when the polycarbodiimide compound is added to the polyester resin while keeping hydrolysis resistance of polyester resin imparted thereto through addition of the polycarbodiimide compound. A polycarbodiimide compound represented by the following general formula (1): RmNH2-m—CO—NH—Z—(N═C═N—Z)n—NH—CO—NH2-mRm (1) is used, wherein Rm is a hydrocarbon residue of an amine compound which is represented by RmNH3-m and has a boiling point at 1 atm of 150° C. or lower; m is 1 or 2; Z is a residue obtained by removing two isocyanate groups from an aliphatic diisocyanate compound; and n is any integer of 2 to 7.
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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)
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公开(公告)号：US20210032454A1
公开(公告)日：2021-02-04
申请号：US16971993
申请日：2019-02-13
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Shinichi NAKASHIMA , Kenichi YANAGISAWA , Masako KURAMOCHI , Sho-go TANAZAWA
Abstract: A resin composition including a resin having an alcoholic hydroxy group and/or a carboxy group as a crosslinkable group, which exhibits excellent crosslinking reactivity to a polycarbodiimide compound and a polyoxazoline compound even at a low reaction temperature where the resin does not cause discoloration or thermal decomposition; a resin material including the resin composition; and a resin crosslinked body that is a reaction product of the resin composition are provided. The resin composition includes at least one resin (A) containing at least an alcoholic hydroxy group and a carboxy group; at least one crosslinking agent (B) selected from a polycarbodiimide compound and a polyoxazoline compound; and a specific organometallic compound (C). The resin material including the resin composition and the resin crosslinked body are provided.
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公开(公告)号：US20200377645A1
公开(公告)日：2020-12-03
申请号：US16970831
申请日：2019-01-18
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Shunsuke IIZUKA , Kenichi YANAGISAWA
IPC: C08G18/80 , C09D175/08 , C09D11/102
Abstract: The present invention provides a method for producing an aqueous carbodiimide having excellent crosslinking reactivity with a crosslinking group, such as an alcoholic hydroxy group of an aqueous resin. The method for producing an aqueous carbodiimide-containing liquid includes a step (1) of mixing an isocyanate group-containing carbodiimide (A), a terminal blocking agent, and at least one organic metal compound selected from an organic titanium compound, an organic zirconium compound, and an organic aluminum compound and allowing them to react with each other, to obtain a terminal-blocked carbodiimide (B) in which the isocyanate group is blocked with the terminal blocking agent; and a step (2) of dissolving or dispersing the terminal-blocked carbodiimide (B) in an aqueous solvent, to obtain an aqueous carbodiimide-containing liquid, wherein the terminal blocking agent contains a hydrophilic compound (X) having a functional group having reactivity with the isocyanate group and a hydrophilic group other than the functional group.
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公开(公告)号：US20220153912A1
公开(公告)日：2022-05-19
申请号：US17440419
申请日：2020-03-16
Applicant: NISSHINBO CHEMICAL INC.
Inventor： Nobuyuki MATSUMOTO , Kenichi YANAGISAWA
Abstract: The present invention provides a powdered polycarbodiimide compound which can improve the hydrolytic resistance of an ester resin, hardly causes an increase in viscosity when added to and mixed with the ester resin, and has high handling properties, and an ester resin composition comprising the same. The powdered polycarbodiimide compound according to the present invention is represented by the following formula (1), and has a melting point of 50° C. or more: wherein R1 and R2 each represent a residue of an organic compound (excluding ethanol) having one functional group reactive with an isocyanate group, wherein the functional group is removed from the organic compound; R3 represents a divalent residue of a diisocyanate compound from which two isocyanate groups are removed; the diisocyanate compound has a hydrocarbon group which directly bonds to the two isocyanate groups; R4 represents a divalent residue of a diol compound from which two hydroxyl groups are removed; X1 and X2 each represent a bond formed by a reaction of the functional group with the isocyanate group; m and n each represent a number of 1 to 20; and p represents a number of 2 to 20.
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