Urea Derivatives thereof

Industry

CPC
C08K5/21

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

CCHEMISTRY METALLURGY C08Organic compounds C08KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS C08K5/00Use of organic ingredients

Current Industry

C08K5/21Urea Derivatives thereof

Industries

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Thermally curable film-forming compositions providing benefits in a...
- Patent number 12,173,172
- Issue date Dec 24, 2024
- PPG Industries Ohio, Inc.
- Daniel F. Moyano
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Adhesive mixture used for the purpose of creating water activated s...
- Patent number 12,098,542
- Issue date Sep 24, 2024
- Johns Manville
- Thomas John Fellinger
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Three dimensional porous siloxanes using leachable porogen particles
- Patent number 12,077,672
- Issue date Sep 3, 2024
- Lawrence Livermore National Security, LLC
- Lemuel Perez Perez
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
High-modulus rubber composition comprising a vulcanization ultra-ac...
- Patent number 12,071,545
- Issue date Aug 27, 2024
- Compagnie Generale des Etablissements Michelin
- Xavier Deparis
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Coating compositions, dielectric coatings formed therefrom, and met...
- Patent number 12,060,495
- Issue date Aug 13, 2024
- PPG Industries Ohio, Inc.
- Anthony Michael Chasser
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dendritic macroporous hydrogels prepared by crystal templating
- Patent number 12,031,008
- Issue date Jul 9, 2024
- Board of Regents, The University of Texas System
- Scott Zawko
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Fire-retardant resins and composite materials
- Patent number 12,006,430
- Issue date Jun 11, 2024
- Gurit (UK) Ltd.
- Laura-Jane Slade
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Formaldehyde scavenger for binder systems
- Patent number 11,981,770
- Issue date May 14, 2024
- HÜTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG
- Annika Klose
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyurethane and UV-moisture dual cure PU reactive hotmelt comprisi...
- Patent number 11,912,867
- Issue date Feb 27, 2024
- BASF SE
- Xuyuan Peng-Poehler
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Heat-curing epoxy resin composition having high storage stability
- Patent number 11,866,544
- Issue date Jan 9, 2024
- Sika Technology AG
- Noah Munzinger
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Fluoroelastomer composition
- Patent number 11,851,556
- Issue date Dec 26, 2023
- Solvay Specialty Polymers Italy S.p.A.
- Stefano Bossolo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Non-skid, textured protective coating compositions for vehicle surf...
- Patent number 11,787,969
- Issue date Oct 17, 2023
- The Sherwin-Williams Company
- Julie Manka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Binders containing an aldehyde-based resin and an isocyanate-based...
- Patent number 11,780,112
- Issue date Oct 10, 2023
- BAKELITE CHEMICALS LLC
- Juan José Joaquin Valenzuela Valdés
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Polymerizable composition for optical member
- Patent number 11,760,831
- Issue date Sep 19, 2023
- HOYA LENS THAILAND LTD.
- Yukio Kageyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coating compositions including a sag control agent and wax
- Patent number 11,760,897
- Issue date Sep 19, 2023
- Axalta Coating Systems IP Co., LLC
- Yongqing Huang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Dendritic macroporous hydrogels prepared by crystal templating
- Patent number 11,760,858
- Issue date Sep 19, 2023
- Board of Regents, The University of Texas System
- Scott Zawko
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Inhibition of crystallization in polyurethane resins
- Patent number 11,713,367
- Issue date Aug 1, 2023
- Carbon, Inc.
- Jie Lu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Aqueous reaction liquid
- Patent number 11,674,046
- Issue date Jun 13, 2023
- CANON PRODUCTION PRINTING HOLDING B.V.
- Marcel J. H. M. Haenen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Thermoreversible bituminous composition
- Patent number 11,639,440
- Issue date May 2, 2023
- Total Marketing Services
- Manuel Merce
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Air curable ethylene/alpha-olefin/diene interpolymer composition
- Patent number 11,634,568
- Issue date Apr 25, 2023
- Dow Global Technologies LLC
- Bo Lyu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal aligning agent composition, method for preparing liq...
- Patent number 11,592,713
- Issue date Feb 28, 2023
- LG Chem, Ltd.
- Hyeongseuk Yun
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polyvinyl alcohol composition, preparation method thereof, and poly...
- Patent number 11,572,456
- Issue date Feb 7, 2023
- Xiamen Sibikon New Material Co., Ltd.
- Shaoyong Chen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Coating system having high surface roughness
- Patent number 11,560,492
- Issue date Jan 24, 2023
- Sika Technology AG
- Benjamin Stöhr
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Cellulose resin composition, molded body and product using same, an...
- Patent number 11,434,350
- Issue date Sep 6, 2022
- NEC Corporation
- Midori Shimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coating materials generating structured surfaces
- Patent number 11,427,729
- Issue date Aug 30, 2022
- BASF Coatings GmbH
- Elke Wegener
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fiber-reinforced molding material and molded article using same
- Patent number 11,390,716
- Issue date Jul 19, 2022
- DIC Corporation
- Chikara Yoshioka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for modifying a casting resin and/or coating composition
- Patent number 11,345,823
- Issue date May 31, 2022
- CLIQ SWISSTECH B.V.
- Detlef Van Pey
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Epoxy resin composition, prepreg, and fiber-reinforced composite ma...
- Patent number 11,345,808
- Issue date May 31, 2022
- Toray Industries, Inc.
- Eiki Takahashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic polyurethane film and preparation method thereof
- Patent number 11,299,624
- Issue date Apr 12, 2022
- LG Chem, Ltd.
- Sang Yool Lee
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thixotropic composition that can be used as an anti-running agent f...
- Patent number 11,261,352
- Issue date Mar 1, 2022
- BOSTIK SA
- Federico Sanz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
EPOXY STRUCTURAL ADHESIVES RESISTANT TO UNCURED AND CURED HUMIDITY...
- Publication number 20240417605
- Publication date Dec 19, 2024
- Henkel AG & Co. KGaA
- Bryan James Siegert
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
THERMALLY EXPANDABLE RUBBER COMPOSITION
- Publication number 20240392116
- Publication date Nov 28, 2024
- SIKA TECHNOLOGY AG
- Björn FUNKE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Dendritic Macroporous Hydrogels Prepared By Crystal Templating
- Publication number 20240360290
- Publication date Oct 31, 2024
- Board of Regents, The University of Texas System
- Scott Zawko
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
COATING COMPOSITIONS, DIELECTRIC COATINGS FORMED THEREFROM, AND MET...
- Publication number 20240279506
- Publication date Aug 22, 2024
- PPG INDUSTRIES OHIO, INC.
- Anthony Michael Chasser
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION CONTAINING...
- Publication number 20240262982
- Publication date Aug 8, 2024
- ENEOS Corporation
- Makoto ASHIURA
- B60 - VEHICLES IN GENERAL
Information Patent Application
THREE-DIMENSIONAL PRINTING KITS
- Publication number 20240240050
- Publication date Jul 18, 2024
- Hewlett-Packard Development Company, L.P.
- Emre Hiro Discekici
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYMERIZATION INITIATOR-CONTAINING COMPOSITION AND DENTAL POLYMERI...
- Publication number 20240180789
- Publication date Jun 6, 2024
- SUN MEDICAL CO., LTD.
- Chidzuru INAMI
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
EUTECTIC MIXTURE AND LIQUID COMPOSITION
- Publication number 20240174862
- Publication date May 30, 2024
- Daicel Corporation
- Takashi WATANABE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
GREASE COMPOSITION AND ROLLING BEARING
- Publication number 20240101825
- Publication date Mar 28, 2024
- JTEKT CORPORATION
- Yurie HAGINO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
RHEOLOGY CONTROL AGENT
- Publication number 20240002582
- Publication date Jan 4, 2024
- BYK-Chemie GmbH
- Dominika Chajda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ACRYLATE-EPOXY RESIN COMPOSITIONS
- Publication number 20230416522
- Publication date Dec 28, 2023
- LYONDELLBASELL COMPOSITES LLC
- KRISHNAN KARUNAKARAN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
THIXOTROPIC DIUREA-DIURETHANE COMPOSITION
- Publication number 20230406991
- Publication date Dec 21, 2023
- Arkema France
- Dmitri COLESNIC
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Dendritic Macroporous Hydrogels Prepared By Crystal Templating
- Publication number 20230383086
- Publication date Nov 30, 2023
- Board of Regents, The University of Texas System
- Scott Zawko
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING...
- Publication number 20230340230
- Publication date Oct 26, 2023
- ENEOS Corporation
- Makoto ASHIURA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING...
- Publication number 20230312879
- Publication date Oct 5, 2023
- ENEOS Corporation
- Makoto ASHIURA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PREPARATION OF A NUCLEATED POLYPROPYLENE MASTERBATCH US...
- Publication number 20230312843
- Publication date Oct 5, 2023
- Hindustan Petroleum Corporation Limited
- Srinivas Rao PADADA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PREPREG, MOLDED ARTICLE AND EPOXY RESIN COMPOSITION
- Publication number 20230295389
- Publication date Sep 21, 2023
- MITSUBISHI CHEMICAL CORPORATION
- Nao KAWAMURA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
AQUEOUS BINDER COMPOSITION
- Publication number 20230174731
- Publication date Jun 8, 2023
- ROCKWOOL A/S
- Dorte BARTNIK JOHANSSON
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING...
- Publication number 20230174747
- Publication date Jun 8, 2023
- ENEOS Corporation
- Makoto ASHIURA
- B60 - VEHICLES IN GENERAL
Information Patent Application
MODIFIED LIGNIN PRODUCTS FOR RIGID FOAMS
- Publication number 20230025729
- Publication date Jan 26, 2023
- Thomas M. GARRETT
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
INHIBITION OF CRYSTALLIZATION IN POLYURETHANE RESINS
- Publication number 20230007999
- Publication date Jan 12, 2023
- Carbon, Inc.
- Jie Lu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
SILANE COUPLING AGENT COMPOSITION COMPRISING SILANE COMPOUND AND PR...
- Publication number 20220363873
- Publication date Nov 17, 2022
- ENEOS Corporation
- Keisuke CHINO
- B60 - VEHICLES IN GENERAL
Information Patent Application
AQUEOUS DISPERSION OF POLYMER PARTICLES AND USES THEREOF AS AN ADHE...
- Publication number 20220332866
- Publication date Oct 20, 2022
- Arkema France
- Hua Zhou
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ZWITTERIONIC CROSSLINKERS, HYDROGELS COMPRISING ZWITTERIONIC CROSSL...
- Publication number 20220325072
- Publication date Oct 13, 2022
- University of Idaho
- Matthew Bernards
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ADDITIVE FOR TEMPERATURE ADAPTIVE RHEOLOGY PROFILE
- Publication number 20220289896
- Publication date Sep 15, 2022
- BYK-Chemie GmbH
- Alan L. Steinmetz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CELLULOSE RESIN COMPOSITION, MOLDED BODY AND PRODUCT USING SAME
- Publication number 20220243033
- Publication date Aug 4, 2022
- NEC Corporation
- Shukichi TANAKA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CELLULOSE RESIN COMPOSITION, MOLDED BODY AND PRODUCT USING SAME
- Publication number 20220235202
- Publication date Jul 28, 2022
- NEC Corporation
- Kiyohiko TOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPDM ROOFING MEMBRANES MADE BY PROCESSES EMPLOYING A EUTECTIC MIXTURE
- Publication number 20220220277
- Publication date Jul 14, 2022
- Hao WANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
FORMALDEHYDE SCAVENGER FOR BINDER SYSTEMS
- Publication number 20220169780
- Publication date Jun 2, 2022
- Huttenes-Albertus Chemische Werke GmbH
- Annika KLOSE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyisocyanate Trimerization Catalyst Composition
- Publication number 20220134322
- Publication date May 5, 2022
- Huntsman International LLC
- Christian Esbelin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Urea Derivatives thereof

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Thermally curable film-forming compositions providing benefits in a...

Adhesive mixture used for the purpose of creating water activated s...

Three dimensional porous siloxanes using leachable porogen particles

High-modulus rubber composition comprising a vulcanization ultra-ac...

Coating compositions, dielectric coatings formed therefrom, and met...

Dendritic macroporous hydrogels prepared by crystal templating

Fire-retardant resins and composite materials

Formaldehyde scavenger for binder systems

Polyurethane and UV-moisture dual cure PU reactive hotmelt comprisi...

Heat-curing epoxy resin composition having high storage stability

Fluoroelastomer composition

Non-skid, textured protective coating compositions for vehicle surf...

Binders containing an aldehyde-based resin and an isocyanate-based...

Polymerizable composition for optical member

Coating compositions including a sag control agent and wax

Dendritic macroporous hydrogels prepared by crystal templating

Inhibition of crystallization in polyurethane resins

Aqueous reaction liquid

Thermoreversible bituminous composition

Air curable ethylene/alpha-olefin/diene interpolymer composition

Liquid crystal aligning agent composition, method for preparing liq...

Polyvinyl alcohol composition, preparation method thereof, and poly...

Coating system having high surface roughness

Cellulose resin composition, molded body and product using same, an...

Coating materials generating structured surfaces

Fiber-reinforced molding material and molded article using same

Method for modifying a casting resin and/or coating composition

Epoxy resin composition, prepreg, and fiber-reinforced composite ma...

Thermoplastic polyurethane film and preparation method thereof

Thixotropic composition that can be used as an anti-running agent f...

Patents Applicationslast 30 patents

EPOXY STRUCTURAL ADHESIVES RESISTANT TO UNCURED AND CURED HUMIDITY...

THERMALLY EXPANDABLE RUBBER COMPOSITION

Dendritic Macroporous Hydrogels Prepared By Crystal Templating

COATING COMPOSITIONS, DIELECTRIC COATINGS FORMED THEREFROM, AND MET...

SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION CONTAINING...

THREE-DIMENSIONAL PRINTING KITS

POLYMERIZATION INITIATOR-CONTAINING COMPOSITION AND DENTAL POLYMERI...

EUTECTIC MIXTURE AND LIQUID COMPOSITION

GREASE COMPOSITION AND ROLLING BEARING

RHEOLOGY CONTROL AGENT

ACRYLATE-EPOXY RESIN COMPOSITIONS

THIXOTROPIC DIUREA-DIURETHANE COMPOSITION

Dendritic Macroporous Hydrogels Prepared By Crystal Templating

SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING...

SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING...

PROCESS FOR PREPARATION OF A NUCLEATED POLYPROPYLENE MASTERBATCH US...

PREPREG, MOLDED ARTICLE AND EPOXY RESIN COMPOSITION

AQUEOUS BINDER COMPOSITION

SILANE COUPLING AGENT COMPOSITION AND RUBBER COMPOSITION COMPRISING...

MODIFIED LIGNIN PRODUCTS FOR RIGID FOAMS

INHIBITION OF CRYSTALLIZATION IN POLYURETHANE RESINS

SILANE COUPLING AGENT COMPOSITION COMPRISING SILANE COMPOUND AND PR...

AQUEOUS DISPERSION OF POLYMER PARTICLES AND USES THEREOF AS AN ADHE...

ZWITTERIONIC CROSSLINKERS, HYDROGELS COMPRISING ZWITTERIONIC CROSSL...

ADDITIVE FOR TEMPERATURE ADAPTIVE RHEOLOGY PROFILE

CELLULOSE RESIN COMPOSITION, MOLDED BODY AND PRODUCT USING SAME

CELLULOSE RESIN COMPOSITION, MOLDED BODY AND PRODUCT USING SAME

EPDM ROOFING MEMBRANES MADE BY PROCESSES EMPLOYING A EUTECTIC MIXTURE

FORMALDEHYDE SCAVENGER FOR BINDER SYSTEMS

Polyisocyanate Trimerization Catalyst Composition