Inventor

WANG PEN-CHUNG

US69 patents

⚠️ This page may combine multiple inventors who share the name “WANG PEN-CHUNG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WANG PEN-CHUNG

SHELL OIL CO

Cyclic polycarbonate oligomer containing spiro diLactam moieties

Aqueous dispersions of epoxy resins

Spirolactonelactams

Partial oxidation of polyoxyalkylene polyol compositions to polycarboxylic acid compositions

Spirodilactam bisimides

Curable resin compositions

Fuel compositions

Fuel compositions

Trisepoxy resin compositions

Cyclohexanenorbornane epoxy resin with curing agent

Epoxy resins with cyclohexenenorbornene moieties

Poly(ether-bis-imide-spiro dilactam) polymer

Polycarbonate polymer having spirodilactam moieties

Preparation of polyarylate polymers of hydroxyaryl-substituted 1,6-diaza [4.] spirodilactams

Thermosetting resin compositions

Aqueous epoxy resin system with curing agent from reacting acid-terminated polyalkylene glycol with epoxy-amine adduct

Epoxy resin curing agent-reacting acid-terminated polyalkylene glycol with excess amine-terminated polyamine-epoxy resin adduct

Fuel compositions

Fuel compositions

Aqueous polymer emulsion

Phenolic allyl ethers

Polyketone polymers

Ketocarboxylated polymers

Novel polyaryl ethers

Spirodilactam derivatives

Arylcyclobutene carboxylate esters

Novel thermoplastic polymers

Aqueous polymer emulsion

Water soluble polyketones

Method of separating lignin derived compounds from pyrolysis oil

Phenolic allyl ethers

Cyanate resins

Cured arylcyclobutene carboxylate ester compositions

Sulfonamide substituted spirodilactams

Cyano- and carboxy-substituted spirodilactams

Spirodilactams

DOW CHEMICAL CO

Silylation of organic compounds

Process for preparing (2,2,2-trihalo-1, 1-dihydrocarbyl-ethoxy) trihydrocarbylsilanes

Preparation of 1,3-bis(aryloxy)-2-propanols

Preparation of trichloromethyl carbinols

Polyepoxy aromatic hydantoins

Process for preparing ethylenically unsaturated heterocyclic thiocarbonyl compounds and their organo-oxylated precursors

Process for preparing methyl ethers or thioethers of aryl compounds

Process for forming ethers

N-(amidoalkyl)hydantoins

RESOLUTION PERFORMANCE PRODUCT

Water dispersible epoxy resins

Water dispersible epoxy resins

(unassigned)

Epoxy-functional amidoamine reacted with excess polyamine and monoepoxy as epoxy curative

Polyamine/epoxy-functional amidoamine product with epoxy resin

HEXION SPECIALTY CHEMICALS INC

Epoxy resin curing agent of epoxy resin-liquid amine adduct and polyamidoamine