1. WO2026174411 - A2 POLYURETHANE INSULATING FOAMS

Publication Number WO/2026/174411

Publication Date 27.08.2026

International Application No. PCT/CN2025/077741

International Filing Date 18.02.2025

IPC

C08K 3/30 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K	USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3	Use of inorganic substances as compounding ingredients
30	Sulfur-, selenium-, or tellurium-containing compounds

C08G 18/18 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
08	Processes
16	Catalysts
18	containing secondary or tertiary amines or salts thereof

C08G 18/20 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
08	Processes
16	Catalysts
18	containing secondary or tertiary amines or salts thereof
20	Heterocyclic amines; Salts thereof

C08G 18/40 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
28	characterised by the compounds used containing active hydrogen
40	High-molecular-weight compounds

C08G 18/42 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
28	characterised by the compounds used containing active hydrogen
40	High-molecular-weight compounds
42	Polycondensates having carboxylic or carbonic ester groups in the main chain

C08G 18/48 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
28	characterised by the compounds used containing active hydrogen
40	High-molecular-weight compounds
48	Polyethers

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C08K 3/30 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K	USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3	Use of inorganic substances as compounding ingredients
30	Sulfur-, selenium-, or tellurium-containing compounds

C08G 18/18 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
08	Processes
16	Catalysts
18	containing secondary or tertiary amines or salts thereof

C08G 18/20 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
08	Processes
16	Catalysts
18	containing secondary or tertiary amines or salts thereof
20	Heterocyclic amines; Salts thereof

C08G 18/40 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
28	characterised by the compounds used containing active hydrogen
40	High-molecular-weight compounds

C08G 18/42 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
28	characterised by the compounds used containing active hydrogen
40	High-molecular-weight compounds
42	Polycondensates having carboxylic or carbonic ester groups in the main chain

C08G 18/48 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
28	characterised by the compounds used containing active hydrogen
40	High-molecular-weight compounds
48	Polyethers

C08G 18/76 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G	MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18	Polymeric products of isocyanates or isothiocyanates
06	with compounds having active hydrogen
70	characterised by the isocyanates or isothiocyanates used
72	Polyisocyanates or polyisothiocyanates
74	cyclic
76	aromatic

C08J 9/12 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J	WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9	Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
04	using blowing gases generated by a previously added blowing agent
12	by a physical blowing agent

C08J 9/14 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J	WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9	Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
04	using blowing gases generated by a previously added blowing agent
12	by a physical blowing agent
14	organic

B01J 8/00 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8	Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes

B01J 8/08 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8	Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
08	with moving particles

B01J 8/10 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8	Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
08	with moving particles
10	moved by stirrers or by rotary drums or rotary receptacles

B29C 44/34 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
29	WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C	SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
44	Shaping by internal pressure generated in the material, e.g. swelling or foaming
34	Component parts, details or accessories; Auxiliary operations

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Applicants

• HUNTSMAN INTERNATIONAL LLC [US]/[US]
• ZHONG, Hualiang [CN]/[CN](GM)

Inventors

• ZHONG, Hualiang
• XIE, Lujing
• ZHANG, Haoran
• YANG, Daqiang
• LUAN, Zhoulin

Agents

• CCPIT PATENT AND TRADEMARK LAW OFFICE

Priority Data

Publication Language English (en)

Filing Language English (en)

Designated States

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AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CV, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IQ, IR, IS, IT, JM, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, MG, MK, MN, MU, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UY, UZ, VC, VN, WS, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, CV, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

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Title

(EN) A2 POLYURETHANE INSULATING FOAMS

(FR) MOUSSES ISOLANTES POLYURÉTHANE A2

Abstract

(EN) Described herein is a method for preparing a polyurethane foam which meets the A2 insulation standard. Also described are equipment for manufacturing said foam.

(FR) L'invention concerne un procédé de préparation d'une mousse polyuréthane satisfaisant à la norme d'isolation A2. L'invention concerne également un équipement pour la fabrication de ladite mousse.

Latest bibliographic data on file with the International Bureau

The publication of an international application under the Patent Cooperation Treaty in PATENTSCOPE (which constitutes an element of the Gazette) does not imply the expression of any opinion whatsoever on the part of the International Bureau of WIPO concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.