Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

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