Patents by Inventor Otto Bella
Otto Bella 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).
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Patent number: 6500215Abstract: A process is disclosed for treating textile materials with selected amine oxides in order to change the aesthetics and/or make the materials more receptive to dyes. In particular, the treatment causes cellulosic materials to become more cationic and thus more receptive to anionic dyes with or without stiffening. In a preferred embodiment, the process of the present invention is directed to treating fabrics containing cotton fibers but will work to a useful extent on wool, nylon and polyester. The process is carried out by contacting said fibers or fabric with selected amine oxide compositions. The amine oxide compositions can be padded onto the fabric or printed onto the fabric. If printed onto the fabric according to a particular design, the design then becomes visible on the fabric once dyed.Type: GrantFiled: July 11, 2000Date of Patent: December 31, 2002Assignee: Sybron Chemicals, Inc.Inventors: Robert B. Login, Otto Bella, Calvin McIntosh Wicker, Jr., Lynn Hosie
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Patent number: 6464730Abstract: The present invention is generally directed to a process for making fabrics containing cotton fibers more aesthetically pleasing and resistant to staining by anionic dyes by derivatizing the cotton so that it exhibits a permanent anionic charge. By increasing the anionic charge of the fibers, the fibers become resistant to anionic coloring agents which may undesirably come into contact with the fibers and the fibers can absorb greater amounts of cationic softeners and biocides. Furthermore, the negative charges repel each other resulting in a fabric with greater loft and hydrophilicity. This results in greater smoothness, better hand, and more comfort. Besides being used to prevent the cross-staining of fabrics, the present invention can also be used to make carpet materials resistant to anionic staining agents.Type: GrantFiled: June 9, 2000Date of Patent: October 15, 2002Assignee: Sybron Chemicals, Inc.Inventors: Robert B. Login, Otto Bella, Calvin McIntosh Wicker, Jr., Lynn Hosie, David MacEwan, Robert Barile
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Patent number: 6336943Abstract: The present invention is generally directed to a process for making fabrics containing cotton fibers more aesthetically pleasing and resistant to staining by anionic dyes by derivatising the cotton so that it exhibits a permanent anionic charge. By increasing the anionic charge of the fibers, the fibers become resistant to anionic coloring agents which may undesirably come into contact with the fibers and the fibers can absorb greater amounts of cationic softeners and biocides. Furthermore, the negative charges repel each other resulting in a fabric with greater loft and hydrophilicity. This results in greater smoothness, better hand, and more comfort. Besides being used to prevent the cross-staining of fabrics, the present invention can also be used to make carpet materials resistant to anionic staining agents.Type: GrantFiled: June 9, 2000Date of Patent: January 8, 2002Assignee: Bayer CorporationInventors: Robert B. Login, Otto Bella, Calvin McIntosh Wicker, Jr.
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Patent number: 6149549Abstract: The present invention is generally directed to a process for making fabrics containing cotton fibers more aesthetically pleasing and resistant to staining by anionic dyes by derivatising the cotton so that it exhibits a permanent anionic charge. By increasing the anionic charge of the fibers, the fibers become resistant to anionic coloring agents which may undesirably come into contact with the fibers. Furthermore, the negative charges repel each other resulting in a fabric with greater loft and porosity. This results in greater smoothness, better hand, and more comfort. Besides being used to prevent the cross-staining of fabrics, the present invention can also be used to make carpet materials resistant to anionic staining agents. Alternatively, it has also been discovered that an anionic derivative can be used to catalyze permanent press resins onto fabrics containing cellulosic fibers, also resulting in anionic cotton.Type: GrantFiled: September 21, 1998Date of Patent: November 21, 2000Assignee: Syborn Chemicals, Inc.Inventors: Robert B. Login, Otto Bella, Calvin McIntosh Wicker, Jr.
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Patent number: 5984979Abstract: An immersion method of dyeing textile material includes the steps of (a) providing a textile material comprising at least one of cotton and regenerated cellulosic fibers; (b) providing an aqueous dyebath in a weight ratio of dyebath:textile material of 10:1 to 20:1, the dyebath comprising a reactive dye and a carboxylate salt for salting out the dye onto the textile material, the carboxylate salt having a carboxylate anionic component and a monovalent cationic component, wherein the carboxylate salt is present in an amount effective for salting out the dye onto the textile material; (c) immersing the textile material in the aqueous dyebath under conditions sufficient to salt the dye onto the textile material; (d) adding to the dyebath an alkaline material to promote a reaction to form a chemical bond between the dye and the textile material; and (e) subjecting the dyebath containing the textile material and the alkaline material to conditions sufficient to form a chemical bond between the dye and the textileType: GrantFiled: October 8, 1997Date of Patent: November 16, 1999Assignee: Sybron Chemicals Inc.Inventors: Otto Bella, Calvin M. Wicker, Jr., Robert B. Login
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Patent number: 5961669Abstract: A process for dying materials containing natural or synthetic polyamides is disclosed. The process includes immersing the materials to be dyed in a dye bath containing an acid dye. The pH of the dye bath is initially at a level that substantially inhibits the dye from being absorbed by the polymer. In accordance with the present invention, however, an acid producing composition is added to the bath which gradually reduces the pH of the bath and allows for uniform diffusion of the dye into the polymer. The acid producing composition of the present invention is a maleate ester, which, in one embodiment, is the reaction product of maleic acid or maleic anhydride and a glycol.Type: GrantFiled: March 12, 1998Date of Patent: October 5, 1999Assignee: Sybron Chemicals, Inc.Inventors: Robert B. Login, Calvin McIntosh Wicker, Jr., Otto Bella
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Patent number: 5840084Abstract: A phosphate-free and silicate-free aqueous alkali composition consisting essentially of water, a water soluble base selected from the group consisting essentially of alkali metal hydroxide, alkali metal carbonate and mixtures thereof, wherein the base is present in an amount sufficient to yield a composition pH of about 11 to about 12 at a composition concentration of about 0.1 wt % to about 1 wt % in a dye bath, and an aminopolycarboxylate sequestrant in an amount sufficient to sequester metal ion impurities and prevent destructive reactive dye hydrolysis when the composition is used to dye fabric in the presence of reactive dye and metal ion impurities. Also disclosed is a dye bath containing the composition and a method of using the composition in reactive dyeing.Type: GrantFiled: November 22, 1996Date of Patent: November 24, 1998Assignee: Sybron Chemicals, Inc.Inventors: Otto Bella, Calvin M. Wicker, Jr., Robert B. Login