Patents by Inventor Robert E. F. Swerts

Robert E. F. Swerts has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Antimicrobial lubricant composition containing a diamine acetate
    Patent number: 5182035
    Abstract: Concentrated solid and liquid antimicrobial lubricating compositions which include (-) about 1-20 wt % of a diamine acetate salt having the formula [(R.sup.1 )NH(R.sup.2)NH.sub.3 ].sup.+ (CH/COO).sup. - or [(R.sup.1)NH.sub.2 (R.sup.2)NH.sub.3.sup.++ ](CH.sub.3 COO).sub.2.sup.- wherein R.sup.1 is a C.sub.10-18 aliphatic group or an ether group having the formula R.sup.10 O(R.sup.11) wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group; and R.sup.2 is a C.sub.1-5 alkylene group, (-) about 0-30 wt % of an alcohol for the purpose of enhancing the physical stability of the composition, and (-) about 0-20 wt % of a nonionic surfactant. The liquid form of the lubricant composition includes a major proportion of water while the solid form of the lubricant composition includes an amount of a solidification agent effective for assisting in solidification of the composition.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: January 26, 1993
    Assignee: Ecolab Inc.
    Inventors: Bruce E. Schmidt, Robert E. F. Swerts