Dow Global Technolgoies LLC

Ritesh Gulabani

Stephen W King

Prashant Anil Tatake

Sung-Yu Ku

Sandeep Nikam

Yogaraj Nabar

Deepak Dicholkar

Prashant Tatake

The disclosure provides compositions and methods for inhibiting corrosion of a copper surface using a bis-imidazoline compound having an aromatic group, such as an aryl bis-imidazoline. The bis-imidazoline corrosion inhibitor can provide one or more advantage in use such as synergistic performance in aqueous and acidic media at low active dosages, resistance to decomposition or degradation in the presence of harsh reagents, ease of dispersion in an aqueous system, and improved thermal stability over conventional triazole based inhibitors. The disclosure also provides methods for the synthesis of bis-imidazoline compounds.

Bis-imidazoline compounds as corrosion inhibitors and preparation thereof

The present invention provides strategies to improve the moisture management properties of textiles while retaining high comfort levels. The treatments also help to protect textiles against microbial growth. The treatment strategies of the present invention are based at least in part on the use of cationic bis-imidazoline(s) and their salts. Quaternized bis-imidazoline cations and their salts are particularly preferred.

Textile treatment compositions including quternary bis-imidazoline compounds derived from linear tetramines useful to improve moisture management and provide antimicrobial protection

The present invention provides corrosion inhibiting compositions that incorporate at least one bis-imidazoline compound. In the practice of the present invention, a tetramine admixture enriched with respect to linear tetramine is used to prepare the bis-imidazoline compound. 'Enriched' means at least 70 weight percent and up to 100% of the tetramine species included in the admixture includes a linear tetramine such as L-TETA.

Corrosion inhibiting compositions including bis-imidazoline compounds derived from enriched linear tetramines

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Vadodara, India

Ritesh Gulabani