公开(公告)号：US20240301223A1

公开(公告)日：2024-09-12

申请号：US18283422

申请日：2022-01-27

Applicant: SAKATA INX CORPORATION

Inventor： Naoki OMI ,  Yuka YOKOYAMA ,  Kota SAITO

IPC: C09D11/105 ,  C08G63/21 ,  C09D11/101

CPC classification number: C09D11/105 ,  C08G63/21 ,  C09D11/101

Abstract: To provide a resin for ink compositions that is usable in the preparation of active energy ray-curable ink compositions and that can increase a proportion of biomass-derived ingredients.
A polyester resin that is a condensation polymer of an acid ingredient including a fatty acid containing an epoxy group and a polybasic acid, and a polyhydric alcohol is employed, wherein the fatty acid has a peroxide value of 1 meq/kg or more in terms of triglyceride. Such a resin is prepared by a process for producing the polyester resin through heating a mixture containing an epoxidized oil or fat, a polybasic acid, and a polyhydric alcohol to subject to a transesterification reaction and a polycondensation reaction, wherein the epoxidized oil or fat has a peroxide value of 1 meq/kg or more.

公开(公告)号：US20240228803A9

公开(公告)日：2024-07-11

申请号：US18547813

申请日：2022-04-04

Applicant: SAKATA INX CORPORATION

Inventor： Naoki OMI ,  Aika NISHIMOTO

IPC: C09D11/101 ,  B41M1/30 ,  C09D11/037

CPC classification number: C09D11/101 ,  B41M1/30 ,  C09D11/037 ,  B41P2200/13

Abstract: Provided is an active energy ray-curable offset printing ink composition, comprising an active energy ray-polymerizable compound having a (meth)acryloyl group, wherein a concentration of the (meth)acryloyl group is 2.2 to 4.5 mol/g, and wherein a glass transition temperature of a polymer obtained by polymerizing the active energy ray-polymerizable compound is −20 to 25° C.

公开(公告)号：US20220169871A1

公开(公告)日：2022-06-02

申请号：US17593541

申请日：2020-02-26

Applicant: SAKATA INX CORPORATION

Inventor： Keishiro HISHINUMA ,  Naoki OMI

IPC: C09D11/101 ,  C09D11/08 ,  C09D11/06 ,  B41M5/00

Abstract: To provide an active energy ray-curable ink composition that increase the content of raw materials derived from biomass and contains a material having superior pigment dispersibility, such as a rosin-modified phenol resin. An active energy ray-curable ink composition containing a compound having one or more ethylenically unsaturated bonds, a specific resin, and a specific liquid ingredient is provided, wherein the specific resin is at least one selected from the group consisting of rosin-modified phenol resins, rosin-modified maleic acid resins, rosin-modified alkyd resins, gilsonite resins, and asphalt resins, and the specific liquid ingredient is fat and oil that is derived from animals or vegetables or a modified product thereof having no ethylenically unsaturated bonds and a solubility parameter value (hereinafter referred to as sp value) of 9.0 (cal/cm3)1/2 to less than 11.0 (cal/cm3)1/2 as measured by turbidimetric titration.