Abstract: An improved rinse aid composition comprising a blend of nonionic, cationic, anionic, zwitterionic and amphoteric surfactants, hydrotropes, and copolymers of alkylene oxide adducts of allyl alcohol and acrylic acid useful in reducing spotting and filming of dishware.
Type:
Grant
Filed:
December 6, 1995
Date of Patent:
April 14, 1998
Assignee:
BASF Corporation
Inventors:
Michael C. Welch, Kenneth L. Zack, Glenis Roberts
Abstract: An aqueous detergent slurry composition comprising (A) about 5-60% of inorganic builder salts; (B) about 5-70% of detergent active matter selected from the group consisting of anionic, nonionic, cationic, amphoteric and zwitterionic surfactants; and (C) about 0.01-10% of a hydrophilic copolymer comprising a hydrophilic monomer copolymerized with an oxyethylated monomer.
Type:
Grant
Filed:
May 23, 1995
Date of Patent:
March 31, 1998
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, Kathleen M. Guiney, John V. Sherman, David T. Durocher, Michael C. Welch
Abstract: A laundry detergency boosting polymer blend additive is made up of:a) a graft copolymer of polyalkylene oxide with vinyl ester, the graft copolymer having a molecular weight within the range of about 5,000 to 50,000; andb) at least one polycarboxylate selected from the group consisting of acrylic/maleic acid copolymers having a molecular weight within the range of about 1,000 to 100,000, and polyacrylic acid having a molecular weight of from about 1,000 to 100,000. The polymer blend additive is effective in water with an ion hardness in the range of about 50 to 500 ppm. The detergency boosting performance of the polymer blend additive is maintained or increased as the concentration of the hardness ions in water is increased.
Type:
Grant
Filed:
April 8, 1994
Date of Patent:
March 31, 1998
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, Edward J. Parker, Richard J. Holland, Sonia Patterson
Abstract: The present invention relates to a method for increasing the flowability of spray dried vitamin powders having low vitamin concentrations and high concentrations of a maltodextrin carrier by coating said low concentration vitamin powders with hydrophobic silica.
Abstract: A stable non-aqueous carrier for personal care compositions comprising:a) about 80-98% by weight of a non-ionic liquid triblock EO/PO/EO copolymer of MW=1000-5000;b) about 2-20% by weight of a non-ionic solid triblock EO/PO/EO copolymer of MW=4000-16,000.
Type:
Grant
Filed:
December 5, 1995
Date of Patent:
January 20, 1998
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, Richard J. Holland, John J. Burke, Kathleen M. Guiney
Abstract: The present invention is directed to a method of removing polymer residue from chemical processing equipment, comprising contacting said residue with NMP vapors.
Type:
Grant
Filed:
October 16, 1996
Date of Patent:
December 16, 1997
Assignee:
BASF Corporation
Inventors:
William C. Walsh, Mark W. Waldrop, Lawrence E. James, William Monahan
Abstract: The present invention relates to the use of phosphate esters for the improvement of water solubility of salicylic acid and stability of peroxide compounds in an aqueous cleanser.
Type:
Grant
Filed:
July 15, 1996
Date of Patent:
December 2, 1997
Assignee:
BASF Corporation
Inventors:
John Jerome Burke, Joanne Paula Gorczyca
Abstract: Aqueous solutions of N-methylmorpholine N-oxide having reduced nitrosamine concentrations are produced by adding catalytic amounts of inorganic carbonate or bicarbonate or carboxylic acid or carboxylate salt.
Abstract: A method for controlling grass weeds in growing crops comprising administering two acetyl coA carboxylase inhibitors at synergistically effective amounts, i.e., sethoxydim, clethodim, and caloxydim.
Type:
Grant
Filed:
October 27, 1995
Date of Patent:
May 13, 1997
Assignee:
BASF Corporation
Inventors:
Barbara G. Auxier, Wade W. Stewart, Neil P. Stapensea
Abstract: The invention relates to the use of liquid heteric EO/PO, wherein EO is ethylene oxide and PO is propylene oxide, block copolymers, containing at least 30% by weight EO, as a tank mix adjuvant for enhancing the weed killing activity of herbicidal formulations.
Abstract: An aqueous detergent slurry composition comprising (A) about 5-60% of inorganic builder salts; (B) about 5-70% of detergent active matter selected from the group consisting of anionic, nonionic, cationic, amphoteric and zwitterionic surfactants; and (C) about 0.01-10% of a hydrophilic copolymer comprising a hydrophilic monomer copolymerized with an oxyalkylated monomer.
Type:
Grant
Filed:
May 23, 1995
Date of Patent:
April 8, 1997
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, Kathleen M. Guiney, John V. Sherman, David T. Durocher, Michael C. Welch
Abstract: An aqueous soda ash based detergent slurry composition comprising (A) about 5-65% of inorganic builder salt comprising soda ash, and (B) about 0.01-20% of a copolymer comprising an unsaturated monomer copolymerized with an oxyalkylated monomer.
Type:
Grant
Filed:
May 23, 1995
Date of Patent:
January 21, 1997
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, Kathleen M. Guiney
Abstract: The present invention provides hygroscopic herbicide formulations in dry, flowable powder forms and associated methods of making the powders and tablets. The most preferred formulation uses an effective amount of a acifluorfen combined with a citrate sequestrant.
Type:
Grant
Filed:
April 28, 1994
Date of Patent:
January 14, 1997
Assignee:
BASF Corporation
Inventors:
Rudolph E. Lisa, Terence K. Kilbride, Jr.
Abstract: A process for the reclamation of polystyrene and other styrene containing polymers, by dissolving said polystyrene polymer into a water soluble solvent, such as NMP, and then precipitating said polymer away from the water soluble solvent through the addition of the water soluble solvent/styrene polymer solution into water. The particles of the polymer that precipitate out and float to the surface of the water can be collected and dried at temperatures that do not give added heat history to the polymer.
Abstract: This invention relates to water-based coating remover compositions comprising a substantially stable and homogeneous mixture of (a) from about 16 to about 55 percent by weight of N-methyl-2-pyrrolidone; (b) from about 11 to about 32 percent by weight of a dibasic ester; (c) from about 4 to about 20 percent by weight of a propylene glycol or glycol ether; (d) an effective amount of a hydroxypropyl cellulose thickener; and (e) from about 25 to about 65 percent by weight water. Exemplary dibasic esters useful in the present invention include at least one C.sub.1-4 dialkyl ester of at least one C.sub.4-6 aliphatic dibasic acid. Suitable glycol ethers include propylene glycol, propylene glycol oligomers or monoalkyl ether of monophenyl ether derivatives of said glycols and oligomers.
Abstract: An improved liquid skin cleanser composition will have about 0.1-25% by weight of at least one EO/PO/EO tri-block nonionic surfactant having the formula: ##STR1## wherein neither x or z can be 0; the sum of x and z is within the range of about 62 to 535, the value of y is within the range of about 15 to 65. Also present will be about 0.1-25% by weight polyvinylpyrrolidone having the formula: ##STR2## wherein the value of n ranges from about 100 to 30,000.
Abstract: A hydrophilic co-polymer, useful in stabilizing laundry detergent, comprising two hydrophilic monomers: an unsaturated hydrophilic monomer co-polymerized with a hydrophilic oxyalkylated monomer.
Type:
Grant
Filed:
July 14, 1994
Date of Patent:
July 16, 1996
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, John V. Sherman, Kathleen M. Guiney, David T. Durocher, Michael C. Welch
Abstract: A stable aqueous detergent composition, comprising: (a) about 5.70% of detergent active matter selected from the group consisting of anionic, nonionic, cationic, amphoteric, and zwitterionic surfactants; (b) about 1-60% of one or more electrolytes; and (c) about 0.01-5% of at least one hydrophilic copolymer comprising hydrophilic monomer and oxyethylated monomer. In particular, the hydrophilic copolymer is of a structure represented by ##STR1## wherein the above-stated substituents are defined herein.
Type:
Grant
Filed:
July 14, 1994
Date of Patent:
July 9, 1996
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, John V. Sherman, Kathleen M. Guiney, David T. Durocher, Michael C. Welch
Abstract: A method for the pretreatment of fabrics and textiles to impart soil release properties thereto involves contacting the fabrics with homopolymers or copolymers of vinyl ethers.
Type:
Grant
Filed:
December 28, 1993
Date of Patent:
May 7, 1996
Assignee:
BASF Corporation
Inventors:
Richard J. Holland, Kathleen M. Guiney, Richard Baur, Matthias Kroner