1. WO2026085655 - IMPROVED POLYESTER HARD COATED SUBSTRATE

Publication Number WO/2026/085655

Publication Date 30.04.2026

International Application No. PCT/CN2024/126059

International Filing Date 21.10.2024

IPC

C08G 63/199 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
63	Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02	Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
12	derived from polycarboxylic acids and polyhydroxy compounds
16	Dicarboxylic acids and dihydroxy compounds
18	the acids or hydroxy compounds containing carbocyclic rings
199	Acids or hydroxy compounds containing cycloaliphatic rings

C08J 7/046 2020.1

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
7	Chemical treatment or coating of shaped articles made of macromolecular substances
04	Coating
046	Forming abrasion-resistant coatings; Forming surface-hardening coatings

C08L 67/02 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L	COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67	Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
02	Polyesters derived from dicarboxylic acids and dihydroxy compounds

C08G 63/199 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
63	Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02	Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
12	derived from polycarboxylic acids and polyhydroxy compounds
16	Dicarboxylic acids and dihydroxy compounds
18	the acids or hydroxy compounds containing carbocyclic rings
199	Acids or hydroxy compounds containing cycloaliphatic rings

C08J 7/046 2020.1

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
7	Chemical treatment or coating of shaped articles made of macromolecular substances
04	Coating
046	Forming abrasion-resistant coatings; Forming surface-hardening coatings

C08L 67/02 2006.1

C	CHEMISTRY; METALLURGY
08	ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L	COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67	Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
02	Polyesters derived from dicarboxylic acids and dihydroxy compounds

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Applicants

• EASTMAN CHEMICAL (CHINA) CO., LTD. [CN]/[CN]

Inventors

• WANG, Yong
• WU, Tianyi

Agents

• BEIJING WANHUIDA LAW FIRM

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, 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) IMPROVED POLYESTER HARD COATED SUBSTRATE

(FR) SUBSTRAT À REVÊTEMENT DUR EN POLYESTER AMÉLIORÉ

Abstract

(EN) A transparent article comprising a polymeric substrate and a hard coat layer, wherein said polymeric substrate comprises a copolyester composition comprising a copolyester providing resistance to cracking under stress and having a Tg of at least 95℃.

(FR) L'invention concerne un article transparent comprenant un substrat polymère et une couche de revêtement dur, ledit substrat polymère comprenant une composition de copolyester comprenant un copolyester conférant une résistance à la fissuration sous contrainte et ayant une Tg d'au moins 95 °C.

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.