Patents by Inventor Enrique Pujol

Enrique Pujol 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).

  • Patent number: 5425891
    Abstract: The detergent composition comprises ethoxylated glycerine, compound represented by the formula (I) and fatty acid alkaline metal salt, represented by the formula (II); the weight ratio of the former to the latter [(I)/(II)], being essentially 10/90-90/10, preferably 1/5 to 5/1, and most preferably 1/3 to 3/1. ##STR1## wherein: R' represents H or CH.sub.3, and each of n, m and l independently represents an integer from 0 to 20; being m+n+l=2-60 preferably 10-45.R--COOM (II)wherein R represents alkyl or alkenyl group having C.sub.7-21, and M represents an alkaline metal.The combination of compounds (I) and (II) permits a saving in the amount of antifoaming agents, as well as shows a better performance in skin irritation, oral toxicity and biodegradation, without deteriorating its detergency.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: June 20, 1995
    Assignee: Kao Corporation
    Inventors: Enrique Pujol, Francisco Pujadas, Antoni Prat, Kazuhiko Okabe
  • Patent number: 5403509
    Abstract: A detergent composition comprising a mixture of mono-, di- and tri-ester nonionic compounds represented by formula (I) and a nonionic compound represented by formula (II), wherein the weight ratio of said mono-, di and tri-ester nonionic compounds is 46-90/9-30/1-15, ##STR1## wherein B represents a hydrogen atom or a ##STR2## group and R represents an alkyl or alkenyl group having 6 to 22 carbon atoms, R' represents H or a CH.sub.3 group, and each of n, m and p independently represents an integer from 0 to 40 and m+n+p=2-100; said detergent composition exhibiting outstanding biodegradability, non-toxicity, non-irritancy, foam stability and better dye inhibition transfer, while maintaining and even improving detergency.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: April 4, 1995
    Assignee: Kao Corporation, S.A.
    Inventors: Enrique Pujol, Francisco Pujadas, Antonio Prat, Kazuhiko Okabe