Polyurethane Dispersion And Ink Composition

Abstract: This polyurethane dispersion is obtained by dispersing a polyurethane resin in water. The polyurethane resin is a reaction product between a chain extender and an isocyanate group-terminated prepolymer. The isocyanate group-terminated prepolymer is a reaction product between a polyisocyanate component and a polyol component including a macropolyol and a hydrophilic group-containing active hydrogen compound. The macropolyol is an aromatic ring-containing polyester polyol. The polyurethane resin has an acid value of 7.0-14.0 mgKOH/g. The total of the urea group concentration and the urethane group concentration in the polyurethane resin is 20.0 mass% or less. The aromatic ring concentration in the polyurethane resin is 5.0-15.0 mass%.

Patent Information

Application #

Filing Date

06 August 2024

Publication Number

51/2024

Publication Type

INA

Invention Field

POLYMER TECHNOLOGY

Status

Email

Parent Application

Applicants

MITSUI CHEMICALS, INC.

2-1, Yaesu 2-chome, Chuo-ku, Tokyo 1040028

Inventors

1. YAMASHITA, Tatsuya

c/o MITSUI CHEMICALS, INC., 580-32, Nagaura, Sodegaura-shi, Chiba 2990265

2. KOUDA, Chikako

c/o MITSUI CHEMICALS, INC., 580-32, Nagaura, Sodegaura-shi, Chiba 2990265

3. FUKUDA, Kazuyuki

c/o MITSUI CHEMICALS, INC., 580-32, Nagaura, Sodegaura-shi, Chiba 2990265

Specification

Documents

Application Documents

#	Name	Date
1	202417059317-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [06-08-2024(online)].pdf	2024-08-06
2	202417059317-STATEMENT OF UNDERTAKING (FORM 3) [06-08-2024(online)].pdf	2024-08-06
3	202417059317-REQUEST FOR EXAMINATION (FORM-18) [06-08-2024(online)].pdf	2024-08-06
4	202417059317-PROOF OF RIGHT [06-08-2024(online)].pdf	2024-08-06
5	202417059317-PRIORITY DOCUMENTS [06-08-2024(online)].pdf	2024-08-06
6	202417059317-FORM 18 [06-08-2024(online)].pdf	2024-08-06
7	202417059317-FORM 1 [06-08-2024(online)].pdf	2024-08-06
8	202417059317-DRAWINGS [06-08-2024(online)].pdf	2024-08-06
9	202417059317-DECLARATION OF INVENTORSHIP (FORM 5) [06-08-2024(online)].pdf	2024-08-06
10	202417059317-COMPLETE SPECIFICATION [06-08-2024(online)].pdf	2024-08-06
11	202417059317-FORM-26 [08-08-2024(online)].pdf	2024-08-08
12	202417059317-GPA-220824.pdf	2024-08-27
13	202417059317-Correspondence-220824.pdf	2024-08-27
14	202417059317-Others-300824.pdf	2024-09-02
15	202417059317-Correspondence-300824.pdf	2024-09-02
16	202417059317-FORM 3 [28-01-2025(online)].pdf	2025-01-28