Diversey, Inc.

Ppg Industries, Inc.

Diversey Corp., a Corp. of Canada

Charles E Rossio

Grant E Lavelle

Michael D Wider

Christian A Remus

Theodore E Anderson

Davis, Dwight

Wladyslaw W Koziol

Dwight Davis

A process for forming a zinc phosphate coating on an aluminum substrate is provided to obtain good coverage by the coating. The coating preferably has a columnar or nodular crystal morphology and a coating weight of at least about 150 mg/ft.sup.2. The aluminum substrate is contacted with a zinc phosphate conversion coating bath which contains: (a) from about 0.4 to 2.5 g/l zinc ion; (b) from about 5 to 26 g/l phosphate ion; (c) from about 0.4 to 1.5 g/l fluoride ion; (d) from about 4 to 400 mg/l ferrous ion; and (e) from about 0.01 to 2 g/l ammonium ion. The zinc phosphate conversion coating is formable on an aluminum substrate in the presence or absence of an accelerator. Also provided is an aqueous zinc phosphate conversion coating concentrate which contains: (a) from about 10 to 60 g/l zinc ion; (b) from about 160 to 400 g/l phosphate ion; (c) from about 2 to 40 g/l fluoride ion; (d) from about 0.2 to 2.0 g/l ferrous ion; and (e) from about 1.0 to 25 g/l ammonium ion. The concentrate may be diluted with an aqueous medium in a weight ratio of about 1:10 to 1:100 to yield a zinc phosphate conversion coating bath.

Zinc phosphate conversion coating compositions and process

Alkaline lubricants for use with glass, aluminum and PET containers and other articles of manufacture are prepared from water-soluble amines. Fatty acid lubricants prepared herefrom are rendered highly dilutable by employing myristic acid as at least a portion of the fatty acid component thereof. Synthetic diamine lubricants are prepared by using the water soluble amines as the hydrotrope for the synthetic diamine, without the neutralization thereof.

Composition for inhibiting stress cracks in plastic articles and methods

Stress cracking in poly(alkylene terephthalate) or polycarbonate articles of manufacture is inhibited by applying to the article a hydrophilic-substituted aromatic hydrocarbon having either an alkyl or aryl side chain, such as, e.g., a sodium sulfonate. Preferably, the stress crack inhibitor is applied to the article in the form of a dilute aqueous caustic bottle washing solution.

Washing composition for inhibiting stress cracking in poly(alkylene

A high solids lubricant system suitable for use in aqueous lubricating systems is disclosed. The high solids lubricant first gels and then solubilizes in the aqueous lubricant stream. In a preferred embodiment, the aqueous stream further contains a water conditioning system.

High solids lubricant

Stress cracking in poly(alkylene terephthalate) articles of manufacture is inhibited by applying to the article a stress crack inhibitor which contains an amine having at least 6 carbon atoms. In a preferred embodiment, the stress crack inhibitor is applied to the article in the form of an aqueous fatty acid-based lubricant.

Stress cracking in poly(alkylene terephthalate) articles of manufacture is prevented by applying to the article a hydrophilic-substituted aromatic hydrocarbon having either an alkyl or aryl side chain, such as, sodium xylene sulfonate. Preferably, the stress crack inhibitor is applied to the article in the form of an aqueous fatty acid-based lubricant.

Compositions for preventing stress cracks in poly(alkylene

An apparatus for de-gelling a liquid mixture in accordance with the present invention includes a device interposed in the flow of the solution for agitating the solution, the agitation sufficient to substantially de-gel the solution. The device for agitating may include a valve which has a chattering motion on opening and closing to agitate the solution; a bead chamber containing closely packed beads through which the solution must pass to reach an outlet, or both the valve and bead chamber.

Method and apparatus for de-gelling a liquid mixture

A conveyor lubricant concentrate for the purpose of lubricating conveyors which includes an alkyl amine solubilizer for solubilizing fatty acids in solution.

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Carleton, MI, United States of America

Charles E Rossio