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Urethane Prepolymer, Polyurethane Resin Raw Material, Conjugate Material, And Method For Producing Conjugate Material

Abstract: This urethane prepolymer is a product of a reaction between a polyisocyanate component, a macropolyol component and a compound component having a hydrophilic group. The urethane prepolymer has an isocyanate group and a hydrophilic group. The polyisocyanate component includes an aromatic polyisocyanate. The aromatic polyisocyanate includes at least one type selected from the group consisting of diphenylmethane diisocyanate and a polymethylene polyphenyl polyisocyanate. The macropolyol component includes a polyether polyol having a number average molecular weight of 400-10,000. The compound component having a hydrophilic group includes a compound having a hydrophilic group and an active hydrogen group having an oxygen atom.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
24 July 2025
Publication Number
41/2025
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. ITO, Takeshi
c/o MITSUI CHEMICALS, INC., 580-32, Nagaura, Sodegaura-shi, Chiba 2990265
2. KANAZAWA, Yuki
c/o MITSUI CHEMICALS, INC., 580-32, Nagaura, Sodegaura-shi, Chiba 2990265

Specification

Documents

Application Documents

# Name Date
1 202517070502-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [24-07-2025(online)].pdf 2025-07-24
2 202517070502-STATEMENT OF UNDERTAKING (FORM 3) [24-07-2025(online)].pdf 2025-07-24
3 202517070502-REQUEST FOR EXAMINATION (FORM-18) [24-07-2025(online)].pdf 2025-07-24
4 202517070502-PROOF OF RIGHT [24-07-2025(online)].pdf 2025-07-24
5 202517070502-PRIORITY DOCUMENTS [24-07-2025(online)].pdf 2025-07-24
6 202517070502-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [24-07-2025(online)].pdf 2025-07-24
7 202517070502-FORM 18 [24-07-2025(online)].pdf 2025-07-24
8 202517070502-FORM 1 [24-07-2025(online)].pdf 2025-07-24
9 202517070502-DECLARATION OF INVENTORSHIP (FORM 5) [24-07-2025(online)].pdf 2025-07-24
10 202517070502-COMPLETE SPECIFICATION [24-07-2025(online)].pdf 2025-07-24
11 202517070502-FORM-26 [28-07-2025(online)].pdf 2025-07-28
12 202517070502-GPA-290725.pdf 2025-08-05
13 202517070502-Correspondence-290725.pdf 2025-08-05
14 202517070502-MARKED COPIES OF AMENDEMENTS [08-08-2025(online)].pdf 2025-08-08
15 202517070502-FORM 13 [08-08-2025(online)].pdf 2025-08-08
16 202517070502-AMMENDED DOCUMENTS [08-08-2025(online)].pdf 2025-08-08
17 202517070502-Others-070825.pdf 2025-08-12
18 202517070502-Correspondence-070825.pdf 2025-08-12
19 202517070502-FORM-5 [30-08-2025(online)].pdf 2025-08-30