Patents by Inventor Wilhelm Didier

Wilhelm Didier 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).

  • Finishing process for textiles, finishing bath for textiles using phosphinicosuccinic acid, phosphinicobissuccinic acid or their mixtures, finished textiles and use of said acids as finishes
    Patent number: 5385680
    Abstract: Process for finishing a textile in which the textile to be treated is impregnated using a finishing bath containing phosphinicosuccinic acid (I), phosphinicobissuccinic acid (II) or a mixture of phosphinicosuccinic acid (I) and phosphinico-bissuccinic acid (II), finishing bath, finished textile and use of previously-mentioned acids as textile finishes or as cross-linking agents for cellulose.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: January 31, 1995
    Assignee: Societe Francaise Hoechst
    Inventors: Wilhelm Didier, Gelabert Antonio
  • Use of polyalkyleneglycol diesters as formaldehyde collectors and finishing process for the textile industry
    Patent number: 5358535
    Abstract: Use as formaldehyde collectors of the products of formula ##STR1## in which R represents an acetoacetyl or 3,5-dioxo hexanoyl group, R.sub.1 represents a hydrogen atom or a methyl radical, m is equal to 1, 2, 3 or 4 and n is either equal to 1 when R.sub.1 represents a methyl radical or equal to 1, 2 or 3 when R.sub.1 represents a hydrogen atom, and finishing process for fabrics based on cellulose fibers using an aminoplastic resin containing formaldehyde in the free or combined state, using a product of formula (I) as the formaldehyde collector.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: October 25, 1994
    Assignee: Societe Francaise Hoechst
    Inventors: Wilhelm Didier, Antonio Gelabert
  • Alkanepolycarboxylic acid derivatives as cross-linking agents of cellulose, new derivatives and textile finishes
    Patent number: 5273549
    Abstract: Use as cellulose cross-linking agents of derivatives of alkanepolycarboxylic acids corresponding to general formula I: ##STR1## in which: n, m=0 or 1,R.sub.1, R.sub.3, R.sub.5 and R.sub.7 =H or COOH it being understood that at least two of the substituents from the said substituents R.sub.1, R.sub.3, R.sub.5 and R.sub.7 represent a carboxyl group,R.sub.2, R.sub.4, R.sub.6, R.sub.8 =H or PO(OH)(OR) where R=H or Alk C.sub.1 -C.sub.4, it being understood that only one substituent from the said substituents R.sub.2, R.sub.4, R.sub.6 and R.sub.8 represents said PO(OH)(OR) group, textile finishes containing said products of formula I and new derivatives of formula I.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: December 28, 1993
    Assignee: Societe Francaise Hoechst
    Inventors: Wilhelm Didier, Fietier Isabelle
  • Amino-plastic resins intended for the improvement of cellulosed fibres and their application
    Patent number: 4968774
    Abstract: Amino-plastic resins soluble in water of which the nitrogenous derivative is chosen from the group comprising urea, 1,3-dimethyl-urea, ethyleneurea, 4,5-dihydroxy-ethyleneurea or their mixtures and the aldehyde derivative is a mixture of from 1 to 99% by weight of glyoxal and from 99 to 1% by weight of glyoxal monoacetal of formula (RO).sub.2 CH--CHO; R=C.sub.1 -C.sub.4 alk, their ethers and their applications in particular with cellulosed fibre treatment.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: November 6, 1990
    Assignee: Societe Francaise Hoechst
    Inventors: Wilhelm Didier, Loison Sylvie, Blanc Alain