The Dow Chemical Company

Dow Global Technolgoies LLC

Philip J Brondsema

Richard A Wolf

Edwin J Wilson

Michael J Mullins

Robert M Strom

Robert A Koster

William C Sumner

Tracy L Young

Susan E Vilmer

Willis J Pennington

One embodiment of the invention comprises a method of producing periodic peptides, which can have antimicrobial uses, and further comprises the peptides themselves. A preferred method comprises the synthesis of simple periodic peptides made from polymerizing identical monomer units of four or fewer amino acids, wherein the minimum length of active peptide is 15 or 16 residues and wherein the minimum percentage of cationic residues is at least 25%.

Periodic antimicrobial peptides

Anhydrous, liquid antimicrobial compositions comprising quaternaries 1-(benzyl)-3,5,7-triaza-1-azoniaadamantane chloride, 1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride and the cis- and cis/trans-isomers thereof, 1-(&agr;-(2-xylyl))-3,5,7-triaza-1-azoniaadamantane chloride and methyl 1-(3,5,7-triaza-1-azoniaadamantane chloride) acetate in admixture with an anhydrous carrier liquid and a thixotropic material are substantially stable to color changes, physical changes and/or chemical changes while under conventional storage conditions for extended time periods.

Stable liquid antimicrobial suspension compositions containing quarternaries prepared from hexamethylenetetramine and certain halohydrocarbons

Ortho-aromatic diaryl ethers, such as o-biphenylyl phenyl ether, are hydrolyzed to corresponding phenolic compounds, such as o-phenylphenol and phenol, when contacted with water in the presence of ceria or thoria at a temperature of between about 250.degree. C. and 700.degree. C.

Process for hydrolysis of ortho-aromatic di-aryl ethers

Azo compounds such as 2-ethyl-6-methyl-phenylazo-t-butane which contain an aromatic moiety bridged to one or more alkyl moieties by azo groups are useful blowing agents in a novel process for foaming compositions of polymers such as polycarbonates.

Process for foaming polymeric compositions with organic azo compounds

A novel method for preparing alpha-carbamatoacrylates by direct condensation is disclosed. The alpha-carbamatoacrylates are used as reactants in the preparation of alpha-isocyanatoacrylates and polymers of alpha-carbamatoacrylates. The foregoing methods may be used to produce novel compounds such as hydrocarboyl alpha-isocyanatoacrylate.

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Midland, MI, United States of America

Philip J Brondsema