The Dow Chemical Company

Other

Ernest L Ecker

Eric R Larsen

Eric S Moyer

Edward W Rutter, Jr

Pamela S Foster

John C Schultz

James P Godschalx

Robert A Devries

Ming-Biann Liu

Edmund J Stark

Mark R Christy

Alfred Caldecourt

A photocurable formulation containing a partially polymerized DVS resin formed by heating DVS monomer (1,3-bis(2-bicyclo�4.2.0!octa-1,3,5-trien-3-ylethenyl)-1,1,3,3-tetramethyl disiloxane) in a solvent at an initial concentration of DVS monomer in the solvent of from about 12 to about 32 weight percent. This photocurable formulation may be used as an interlayer dielectric to fabricate thin film multichip modules.

Photocurable formulation containing a partially polymerized

A process for forming a partially polymerized DVS resin comprising heating DVS monomer (1,3-bis(2-bicyclo�4.2.0!octa-1,3,5-trien-3-ylethenyl)-1,1,3,3-tetramethyl disiloxane) in a solvent at a concentration of DVS monomer in the solvent such that:

Partially polymerized divinylsiloxane linked bisbenzocyclobutene resins

An anti-car-theft system incorporating solenoid locking devices and relays for disabling or locking a plurality of critical components of an automobile (such as the ignition, the steering, the brakes, the transmission and the hood), unless and until the system is deactivated by the entry of a security code into a control unit. To deactivate the system in a preferred embodiment, the owner first unlocks the driver's door by means of a keyless remote entry device. Once inside the automobile, the owner enters his or her security code into a keypad on the control unit, which is located inside the automobile. Upon proper entry of the security code, the system enables the car components previously disabled by the relays. After the proper entry of the security code, the system also allows the owner to enable the car components that had been locked by solenoids; these components may then be enabled by further action by the owner, such as, in a preferred embodiment, the unlocking of the passenger doors by the keyless remote entry device or by the passenger-door-unlock button on the inside of the driver's door.

Automotive theft-prevention system using a key pad and a remote

A crude vinylically unsaturated product formed from a palladium-complex-catalyzed reaction of a reactant halide selected from the group consisting of aryl, allyl, vinyl, and benzyl halides, and a reactant olefin having a vinylic hydrogen, wherein the reaction is carried out in the presence of a hydrogen halide acceptor, is purified by first contacting the crude product with a base that is stronger than the hydrogen halide acceptor, then heating the stronger base-contacted product. The purified product shows a marked reduction in concentration bromine and palladium impurities. The product can then be further purified by such methods as chromatography, crystallization, or distillation to achieve a product that is more suitable for applications where very low levels of inorganic impurities are required.

Process for purifying vinylically unsaturated compounds prepared using a

Poly(vinylbenzyl ethers) of polyphenols are prepared by reacting an alkali metal, alkaline earth metal, or ammonium salt of a polyphenol with a vinylbenzyl halide in a liquid reaction medium consisting essentially or a monohydric alcohol or glycol having less than 12 carbons, a polyglycol having a weight average molecular weight ranging from about 200 to about 4000, or glycerol. Halide ion content of poly(vinylbenzyl ethers) of polyphenols prepared by the method of this invention and other methods are reduced by dissolving the ether in a solvent that dissolves no more than about 1.0 weight percent of an alkali metal, alkaline earth metal, or ammonium halide; separating the ether solution from the halide salt; and then recovering the ether from the solution.

Process for preparing poly (vinylbenzyl ethers) of polyphenols

The novel compositions of this invention are ignition resistant thermoplastic compositions comprising in admixture a thermoplastic resin and an ignition resistant additive selected from the group consisting of: at least one unsymmetrical carbonic acid ester of the general formula ##STR1## at least one unsymmetrical ether of the general formula

Ultraviolet light-stable ignition resistant thermoplastic molding

The compound 1,1,2-trichloro-2,2-difluoroethane is prepared in high yield by contacting 1,1-difluoroethylene and chlorine in the presence of a free radical initiator in a liquid reaction medium.

Process for the production of 1,1,2-trichloro-2,2-difluoroethane

Unsaturated esters can be prepared from dicarboxylic acids and dibromoneopentyl glycol with improved resin color in a shorter reaction time with minimal corrosion of metallic reaction vessels and with a net energy saving by the process using an aryl sulfonic acid as the esterification catalyst and following completion of the reaction neutralizing the acid catalyst.

Unsaturated polyesters prepared from a dicarboxylic acid and

This invention relates to a method for recovering hydrogen bromide gas from a gaseous stream. The method comprises contacting the gaseous stream with a nonaqeous hydrogen bromide absorbent containing acetic acid to absorb at least a portion of the hydrogen bromide. The hydrogen bromide containing absorbent is then heated to desorb at least a portion of the hydrogen bromide.

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Midland, MI, United States of America

Ernest L Ecker