James Allen Oswald

US Patent:

39961478, Dec 7, 1976

Filed:

Aug 8, 1973

Appl. No.:

5/386652

Inventors:

William J. Settineri - Midland MI
Wayne W. Frenier - Midland MI
James H. Oswald - Bay City MI

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C11D 700

US Classification:

252149

Abstract:

The corrosion of metal surfaces in contact with aqueous acid cleaning solutions is inhibited by sulfonium salt corresponding to the formula ##STR1## wherein n is 1 or 2; R. sub. 1 is an electron withdrawing group; R. sub. 2 is a hydrocarbyl radical or inertly-substituted hydrocarbyl radical of up to about 24 carbon atoms; R. sub. 3 is alkyl of from 1 to 4 carbon atoms, inertly-substituted alkyl of 2-4 carbon atoms, allyl, phenyl or inertly-substituted phenyl; or R. sub. 2 and R. sub. 3 are joined to form a 5- or 6-membered heterocyclic ring; and A. sup. - is a compatible anion. These sulfonium salts are effective corrosion inhibitors even in the presence of ferric ions.

US Patent:

45350981, Aug 13, 1985

Filed:

Mar 12, 1984

Appl. No.:

6/588483

Inventors:

Syamalarao Evani - Midland MI
James H. Oswald - Auburn MI
Thomas L. Staples - Midland MI
Brent T. Polak - Midland MI

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C08L 3102

US Classification:

521149

Abstract:

Water absorbent compositions comprise a water swellable polymer which contains polymerized water-soluble monomers, water-insoluble monomers having a pendant hydrophobic moiety, and optionally, a crosslinking monomer. The polymer can be blended with a colloidal support such as colloidal silica. The compositions exhibit good water absorbency rates and high gel strengths.

US Patent:

40791157, Mar 14, 1978

Filed:

Dec 31, 1975

Appl. No.:

5/645748

Inventors:

William J. Settineri - Midland MI
James H. Oswald - Bay City MI

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

B29B 304

US Classification:

264322

Abstract:

An improved process for preparing transparent shaped articles from a vinylidene chloride polymer, said articles having excellent barrier properties and a high degree of clarity, continuity and flexibility such process comprising (1) preparing a substantially homogeneous admixture from (A) a particulate vinylidene chloride polymer having crystalline melting peaks of at least about 175. degree. C. as determined by differential thermal analysis, and (B) a volatile material having dispersed or dissolved therein from about 3 to 20 percent based on vinylidene chloride polymer weight of a nitrile containing elastomer which is compatible with the vinylidene chloride polymer, and wherein the volatile material is a nonsolvent for the vinylidene chloride polymer, then (2) removing the volatile material from the admixture and (3) thermally fabricating the admixture into a shaped article.