Morton Thiokol Inc.

Calgon Corporation

Thiokol Corporation

Morton International, Inc.

Lawrence J Guilbault

Thomas C McEntee

Judith L Koob

James F Brophy

Fred David Martin

Robert C Wade

Jeffrey A Ulman

Frederick Alan Hoffstadt

Nuno M Rei

Sally Lee Adams

Nancy S Sherwood

Walter Verstraeten

Miklos Tamas Szabo

Willy Verleye

Michael A Cook

M Fred Hoover

An aqueous solution of sodium borohydride, sodium hydroxide, and an anionic polymer is useful for the reduction and separation of metals in wastewater and it is hydrolytically stable for a period of six months. It may also contain an alkali metal aluminate or alum. Thus, a one-package treatment of wastewater is provided by the invention described herein.

Alkali metal borohydride/anionic polymer solutions

Polymers containing the primary pendant amine group or the corresponding amine salt are useful for imparting good conditioning properties to hair.

Polymeric amine conditioning additives for hair care products

Redissolution and/or reoxidation of metals precipitated by chemical reduction from aqueous solutions can be prevented by adding a bicyclic, aromatic, organonitrogen compound to the solution in a amount insufficient to cause precipitation of said metal but sufficient to prevent the redissolution and reoxidation of the precipitate. The compounds added can be selected from benzotriazoles, benzothiazols and benzimidazoles.

Method for prevention of metallic precipitate reoxidation/redissolution

The use of a bath containing the same antimicrobial agent as that previously incorporated in a fiber permits the antimicrobial concentration in the fiber to be controlled when the fiber is processed through liquid media such as dye baths and the like.

Method for controlling isothiazolone antimicrobial content of fibers

A lower temperature technique for incorporating antimicrobial agents into fibers following the melt step in fiber manufacturing processes results in several advantages when contrasted with incorporation during the molten state.

Antimicrobials impregnated into fibers

Method of incorporating antimicrobial agents into fibers

Method for incorporating antimicrobials into fibers

Method for controlling antimicrobial content of fibers

Organometallic compounds, such as 10, 10'-oxybisphenoxarsine, are removed from aqueous media by preferential absorption onto solid polyamide absorbents, such as Nylon, in the form of pellets, fibers, granules, film or coatings.

Method for removal of organometallics from wastewater

Quaternary ammonium hydroxides are prepared by the electrolysis of quaternary ammonium halides in electrolytic cells having the anode and cathode separated by a cation exchange membrane.

Electrolytic method for producing quaternary ammonium hydroxides

Concentrates containing from 0.5% to 20% by weight of an alkali metal borohydride, balance essentially inert dry resinous polymer are added to plastics in amounts effective to reduce traces impurities and thereby result in improved heat and light stability.

Alkali metal borohydride concentrate useful as a stability improver

Improved cementing compositions and their use in well cementing operations is disclosed, wherein polyvinylpyrrolidone-polyacrylamide triblock polymers are used as fluid loss additives for aqueous hydraulic cement slurries.

Low fluid loss cementing compositions containing

Block polymers of the A-B-A type wherein the A block is derived from a water-soluble monomer and the B block is derived from N-vinyl pyrrolidone. The polymers are water soluble and are useful as flocculants.

Water-soluble vinyl-pyrrolidone block copolymers

Use of dialdehydes to maintain or increase solution viscosity of polymer compositions useful in oil recovery processes. In particular, the dialdehydes are used to maintain or enhance the effectiveness of polymers used as viscosity increasing agents in aqueous oil displacement media in the secondary and tertiary recovery of oil.

Petroleum recovery process

Improved secondary and tertiary oil recovery process in which water-soluble, salt-insensitive, block polymers of the A-B-A type wherein the A block is derived from a water-soluble monomer and the B block is derived from N-vinyl pyrrolidone are used as viscosity control agents.

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Topsfield, MA, United States of America

Lawrence J Guilbault