Patents by Inventor Gerardus Van Gurp

Gerardus Van Gurp 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).

  • Process for preparing esterquats
    Patent number: 6379294
    Abstract: A process for preparing an esterquat composition comprising (a) reacting a tertiary amine according to formula I: wherein R1 represents a C3-C6 hydrocarbon group, R2 represents a C3-C6 hydrocarbon group, a —R4—OH group or a —CH2[CH(OH)]nCH2OR5 group, if R2 represents a C3-C6 hydrocarbon group, R3 represents a —R4—OH group or a —CH2[CH(OH)]nCH2OR5 group, if R2 represents a —R4—OH group, R3 represents a —R4—OH group or a —CH2[CH(OH)]nCH2OR5 group, if R2 represents a —CH2[CH(OH)]nCH2OR5 group, R3 represents a —CH2[CH(OH)]nCH2OR5 group, R4 represents a C2-C4 hydrocarbon group, n is 1-4, and R5 represents H or a C1-C30 hydrocarbon group, with a C3-C6 hydrocarbyl halide or a di(C3-C6) hydrocarbyl sulfate, followed by (b) reaction with a C8-C30 acid halide, with the proviso that at least one hydroxy group is esterified.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: April 30, 2002
    Assignee: Akzo Nobel N.V.
    Inventors: Adrianus Buijs, Gerardus Van Gurp, Tjitte Nauta, Robert Smakman, Anne Marijke Wit-Van Grootheest