The Dow Chemical Company

Sumitomo Chemical Company, Limited

Dow Global Technolgoies LLC

National Cheng-Kung University

Chun S Wang

Abel Mendoza

Zeng-Kun Liao

Zeng K Liao

Robert L Bowden

Michael Inbasekaran

Yang Cheng

Jody R Berman

Wuu N Chen

Louis L Walker

Michelle L Hudack

David B Fritz

David R Wilson

Ravi B Shankar

James L Bertram

John L Burba, Iii

Weishi W Wu

Daniel J Murray

William Gerald Stobby

Wanglin Yu

Ted A Morgan

William J Kruper

Dean M Welsh

Ha Q Pham

Scott G Gaynor

Steven P Crain

Pen-Chung Wang

Bruce A King

Mark William Beach

Stanley D McGregor

Terry J Nestrick

Dennis L Steele

Gary W Bogan

Inken Beulich

Eric E Bancroft

John M Wassick

Douglas G Kleweno

Chi Yi Lin

Wan Jung Hsieh

Kyle B Benkendorfer

Kalyanmoy Deb

Yashesh Deepakkumer Dhebar

Erik David Goodman

Vicki Rothhaar

Mark W Beach

Ing Feng Hu

Jeng Yueh Shieh

An embodiment involves a hybrid machine learning classifier that uses a random forest of decision tree classifiers to predict a tariff code prefix, and uses a plurality of expert trees to predict a tariff code suffix from properties related to chemical components associated with the respective tariff code prefixes. The embodiment also involves: determining a proportion of a dominant chemical component in comparison to other chemical components in a new set of chemical components; calculating similarity scores for the new set of chemical components and words associated with the tariff code prefixes; generating a feature vector from the proportion and the similarity scores; and obtaining a predicted tariff code including a predicted tariff code prefix determined by applying the random forest to the feature vector, and a predicted tariff code suffix determined by traversing a particular expert tree in accordance with properties related to the new set of chemical components.

Hybrid machine learning model for code classification

A conjugated or partially conjugated polymer including a structural unit of Formula I in the backbone: (Formula I), wherein Arl, Arare each independently a substituted or unsubstituted arylene or hetero arylene group with two or more aromatic rings fused together and Ar3 is an aryl or heteroaryl group of C4 to C40 or substituted aryl or heteroaryl group of C4 to C40 and devices containing such polymer. In addition, a composition of: (Formula V), wherein Ar, Arare arylene or heteroaryl groups and Ar3 is an aryl or heteroaryl group and wherein X is a leaving group such as halogen, boronic acid or boronate ester. 

Triarylamine containing polymers and electronic devices

Phosphorus-sulfur compounds have flame retardant activity in organic polymer systems. The phosphorus-sulfur compounds can be represented by the structure: wherein X is oxygen or sulfur, T is a covalent bond, oxygen, sulfur or nitrogen, provided that at least one of X and T is sulfur, each X' is independently oxygen or sulfur, each m is independently zero or 1 when X&#x2032; is oxygen and zero, 1 or 2 when X&#x2032; is sulfur, n is at least 1 and preferably at least 2, each R is independently an unsubstituted or inertly substituted hydrocarbyl group or the R groups together form an unsubstituted or inertly substituted divalent organic group and A is an organic linking group.

Phosphorus-sulfur FR additives and polymer systems containing same

A compound having a structural unit of Formula: (I). A polymer having a structural unit of Formula: (II). A conjugated polymer having one or more side groups of the following Formula: (III). Additionally, compositions, polymer blends, films, coatings, and electronic devices prepared from such polymers. 

Salicylate substituted conjugated polymers and devices

A series of novel phosphorus-containing cured benzoxazine resins, which are synthesized from dihydrobenzoxazine resins with reactive phosphorus-containing compounds. The cured benzoxazine resins have desired flame retardancy and high glass transition temperature, and are suitable for the fabrication of printed circuit board and the semiconductor encapsulant applications.

Phosphorus-containing cured benzoxazine resins and preparation thereof

A composition comprising a polymer comprising a repeat unit of Formula I:wherein Ris independently in each occurrence H, Chydrocarbyl or Chydrocarbyl containing one or more S, N, O, P or Si atoms, or both of Rtogether with the 9-carbon on the fluorene, may form a Cring structure which may contain one or more S, N, or O atoms;

Tricyclic arylamine containing polymers and electronic devices therefrom

Compounds are prepared which have at least one aromatic cyanate group and at least one organosiloxane moiety per molecule. These compounds when cured possess excellent thermal stability, moisture resistance properties and a low dielectric constant.

Aromatic cyanate-siloxane

Blends containing (1) at least one compound containing an average of more than one vicinal aromatic cyanate group per molecule and at least one organosiloxane moiety per molecule and (2) at least one compound containing an average of more than one vicinal aromatic cyanate group per molecule which is substantially free of organosiloxane moieties. The compositions are useful as a component in adhesives, coatings, laminates, composites, encapsulants, filament winding, and molding.

Blends containing cyanate-siloxanes

Curable compositions containing a compound containing an average of more than one vicinal aromatic cyanate group per molecule and at least one organosiloxane moiety per molecule and a curing catalyst therefor. The compositions are useful as a component in adhesives, coatings, laminates, composites, encapsulants, filament winding, and molding.

Compounds are prepared which contain both an organosiloxane moiety and either a phenolic hydroxyl group or an epoxide group. Also disclosed are curable and cured compositions.

Aromatic hydroxyl-containing compounds containing organosiloxane

Epoxy resins have been reacted with a copolymer of a diunsaturated aliphatic compound and acrylonitrile or methacrylonitrile and a siloxane-containing polymer resulting in a rubber modified epoxy resin suitable for use in electrical and electronic component encapsulation formulations which provide such components with improved thermal shock performance. The rubber modified epoxy resins have improved flexural properties with minimal reduction in glass transition temperature.

Rubber modified epoxy resins

Adducts of metabrominated monophenols such as 3,5-dibromo-2,4,6-trimethylphenol and multifunctional epoxides such as cresol-formaldehyde epoxy novolac resins are disclosed to be useful in formulations for encapsulating electronic components.

Adducts of metabrominated phenols and polyfunctional epoxides

Epoxy resins which are relatively low in total bound halide are prepared by concurrently and continuously adding a mixture of (1) a mixture of an epihalohydrin, a compound containing an average of more than one group reactive with a vicinal epoxide group and a solvent and (2) an aqueous or organic solution of an alkali or alkaline earth metal hydroxide; to (3) a mixture of epihalohydrin and a solvent.

Concurrent addition process for preparing high purity epoxy resins

Growing community of inventors

Lake Jackson, TX, United States of America

Chun S Wang