The Dow Chemical Company

Dennis L Steele

Michael B Cavitt

David J Duncan

Jody R Berman

Chun S Wang

Marvin L Dettloff

Avis L McCrary

Ross C Whiteside, Jr

Zeng-Kun Liao

Michael P Kubisiak

An improved system of generating renewable energy is comprised of a specific configuration of mechanisms, materials, and processes that all function together as a single symbiotic system. In accordance with a preferred embodiment, the system cultivates aquatic biomass, then extracts triglycerides from said biomass. The extracted triglycerides are converted into biodiesel through transesterification. During the operation of the system, a continuous output of biofuel, thermal energy, steam, and electricity, is efficiently produced. These yields are precisely measured and repurposed as energy input at various points throughout system processes, thus resulting in a surplus output. Any embodiment of the disclosed system will generate a continuously renewable final product of biofuel and power.

System of biomimetic energy synthesis

Epoxy-containing compounds are prepared by dehydrohalogenating the reaction product of an epihalohydrin with the reaction product of a compound containing an average of more than one aromatic hydroxyl group per molecule with an alkylene oxide wherein the ratio of moles of epihalohydrin to hydroxyl groups is at least about 1.2:1. When these epoxy containing compounds are formulated into coatings, the resultant products have improved chemical resistance to acids.

Epoxy resin compositions based alkoxylated phenols

Epoxy resin compositions based on alkoxylated phenols

Compositions comprising (A) a halogenated phenoxy resin and (B) an advanced epoxy resin are useful in the preparation of electrical laminates when admixed with a suitable curing agent such as dicyandiamide.

Epoxy resin laminating varnish and laminates prepared therefrom

Monomers and oligomers containing a plurality of vinylbenzyl ether groups are prepared by reacting a material containing a plurality of aromatic hydroxyl groups such as tetramethyltetrabromobisphenol A with a vinylbenzyl halide such as vinylbenzyl chloride in the presence of a polar aprotic solvent such as dimethylformamide. The monomers and oligomers prepared by this process have an improvement in one or more properties selected from dielectric constant (before and/or after moisture absorption) or thermal stability. Also disclosed are new monomers and oligomers containing a plurality of vinylbenzyl ether groups such as bis(vinylbenzyl)ether of dicyclopentadienyl bisdimethylphenol.

Monomers and oligomers containing a plurality of vinylbenzyl ether

Curable compositions are disclosed which comprise a multiglycidyl ether such as the triglycidylether of tris(hydroxyphenyl)methane and an amine substituted sulfonic acid amide such as sulfanilamide. These compositions can be cured by heating in the presence or absence of an accelerator such as 2-methyl imidazole. These compositions are particularly useful in the preparation of electrical laminates.

Curable compositions containing multiglycidyl ethers and a sulfonic acid

Disclosed are thermosettable compositions comprising (A) an epoxy resin such as the diglycidyl ether of bisphenol A; (B) boron trifluoride complexed with a primary, secondary or tertiary amine such as monoethanolamine and (C) at least one cyclic or acyclic phosphazene having at least one pendant ##STR1## group wherein Z is an alkyl or an aryl group such as hexa(n-propylamino)cyclotriphosphazene. When cured, these compositions have an increased glass transition temperature (Tg) value as compared to a similar composition without the phosphazene compound. These compositions are useful in potting compositions, wet lay-up and pre-impregnated laminate, adhesive, molding, coating, casting, encapsulation, filament winding and transfer molding applications.

Growing community of inventors

Freeport, TX, United States of America

Dennis L Steele