Patents Assigned to BASF Corporation
  • Patent number: 5697402
    Abstract: A system for mixing first and second polymer melt flows and directing a mixed polymer melt flow to one and another downstream locations includes a control valve having an inlet port for receiving the first polymer melt flow, and a pair of outlet ports, and a fluidic valve for forming the mixed flow of the first and second polymer melt flows and directing the mixed flow to one of a plurality of downstream locations. The fluidic valve is provided with a primary supply port for receiving the second polymer melt flow, a pair of secondary supply ports which are fluid-connected with the primary supply port at a mixing intersection, and a plurality of discharge ports extending from the mixing intersection. Each discharge port directs the mixed flow of the first and second polymer melt flows to a respective downstream location. A pair of branch conduits is provided which fluid-connect one of the pair of outlet ports of the control valve to a respective one of the secondary supply ports of the fluidic valve.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: December 16, 1997
    Assignee: BASF Corporation
    Inventors: John A. Hodan, Matthew B. Hoyt, Otto M. Ilg
  • Patent number: 5696061
    Abstract: Provided herein is a composition, system and method containing a hydrophobic lubricant and a water soluble solvent. The invention my also contain water. Specific solvents include akyl or alkoxy pyrrolidones such N-methyl-2-pyrrolidone which are added to or mixed with loom lubricators. Also provided is a method for inhibiting the increase in viscosity of lubricants used in polyolefin processing methods. Polyolefin compounds such as polyethylene, polypropylene and polybutylene are some of the compounds used in the invention. Provided are solutions, methods and systems used in manufacturing process that use polyolefins. The manufacturing processes include weaving, extruding and molding.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: December 9, 1997
    Assignee: BASF Corporation
    Inventor: William C. Walsh
  • Patent number: 5695813
    Abstract: An improved latex composition is provided that has been found to exhibit a superior ability to form a substantially uniform polymeric film when applied to a substrate. The composition is capable of being handled and applied to a substrate in the absence of excessive foaming. The aqueous composition includes as essential components specified concentrations of a specifically-defined normally liquid predominantly hydrophobic nonionic ethylene oxide/propylene oxide block copolymer surfactant, and a solely hydrophobic defoaming agent (e. g., a hydrocarbon-based mineral oil). It is possible for the composition to be applied even to a hydrophobic substrate (e.g., a polyester film substrate). Compositions of the present invention, following application to a substrate and the volatilization of the water component, form a substantially uniform polymeric film that can serve as a coating or adhesive.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: December 9, 1997
    Assignee: BASF Corporation
    Inventors: Michael J. Anchor, Rebecca P. Hollis, Gregory W. Drewno
  • Patent number: 5692470
    Abstract: A plastic throttle body valve including a valve body having an interior passage way connecting an inlet and an outlet of the valve body. The valve body includes an arcuate surface through which the inlet is provided, and a closure member pivotally attached to the valve body for selectively opening and closing the inlet. The valve has the advantage that there is no obstruction in the air stream when the valve is wide open.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: December 2, 1997
    Assignee: BASF Corporation
    Inventors: Eric R. Sattler, Joel S. Myers
  • Patent number: 5693318
    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
  • Patent number: 5693723
    Abstract: There is described a curable coating composition comprising:(A) a carbamate-functional component that is the reaction product of:(1) a compound having a plurality of hydroxyl groups that is the reaction product of:(a) a compound comprising at least one epoxide group and(b) a compound comprising at least one organic acid group and at least one hydroxyl group,(2) a compound comprising a carbamate group, and(B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A).
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: December 2, 1997
    Assignee: BASF Corporation
    Inventor: Marvin L. Green
  • Patent number: 5693724
    Abstract: There is described a curable coating composition comprising:(A) a carbamate-functional component that is the reaction product of:(1) a compound having a plurality of hydroxyl groups that is the reaction product of:(a) a compound comprising at least one epoxide group and(b) a compound comprising a plurality of organic acid groups,(2) a compound comprising a carbamate group, and(B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A).
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: December 2, 1997
    Assignee: BASF Corporation
    Inventor: Marvin L. Green
  • Patent number: 5693796
    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.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: December 2, 1997
    Assignee: BASF Corporation
    Inventor: Mark Sandison
  • Patent number: 5692626
    Abstract: An integral dual compartment container includes a pair of container bodies positioned back-to-back relative to one another. Each of the container bodies includes respective upper and lower container body portions. The upper body portions each has an opening and is asymmetrically disposed relative to the respective lower container body portions thereof. A handle spans the upper container body portions so as to establish a generally rectangular space therebelow. A pair of generally vertically oriented attachment flanges integrally attach a respective end of the handle to the upper container body portion, while a generally vertically oriented connecting flange extends continuously between the opposed rear walls of the container bodies and connects them in a back-to-back relationship.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: December 2, 1997
    Assignee: BASF Corporation
    Inventors: William R. Wehrle, Neil P. Stapensea, Douglas J. Mattson, Ted E. Piatt, Joseph P. Quinn
  • Patent number: 5686526
    Abstract: The invention provides polyurethane components and compositions capable of providing internal mold release properties in SRIM applications. The polyol composition of the invention has an isocyanate reactive polyol (A) having a number average molecular weight from 100 to about 10,000 and an effective amount of internal mold release composition (B) having a silicon-containing polymer (a) and an at least diester functional compound (b) which is the reaction product of (i) an aromatic carboxylic acid, and (ii) alcohols having from 2 to 30 carbons. The invention further provides an SRIM polyurethane composition useful in the preparation of molded polyurethane articles having internal mold release properties, the composition comprising an isocyanate component (I) and the isocyanate reactive polyol composition (component (II)) disclosed above.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: November 11, 1997
    Assignee: BASF Corporation
    Inventor: James Turnbach
  • Patent number: 5686187
    Abstract: The invention provides a molded polyurethane article having internal mold release properties. The polyurethane article comprises the reaction product of an isocyanate component (I) and an isocyanate-reactive polyol component (II). The polyol component comprises an isocyanate-reactive polyol (A) having a molecular weight from 100 to about 10,000 and an effective amount of an internal mold release composition (B). The internal mold release composition comprises a silicon-containing polymer (a) and a diester functional compound (b). The diester compound comprises the reaction product of an aromatic dicarboxylic acid (i) and an alcohol having from 2 to 30 carbons.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: November 11, 1997
    Assignee: BASF Corporation
    Inventor: James Turnbach
  • Patent number: 5686499
    Abstract: There is now provided a closed cell rigid polyurethane foam made from a polyol composition containing a polyol having polyester linkages and a number average molecular weight of 400 or more, and at least about 8 php of a silicone-containing surfactant polymer. Either mixed into the polyol composition at the time of foaming, mixed into an isocyanate, or both, is an aliphatic or cycloaliphatic C.sub.4 -C.sub.7 hydrocarbon.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: November 11, 1997
    Assignee: BASF Corporation
    Inventor: Thomas L. Fishback
  • Patent number: 5686500
    Abstract: A polyol composition is provided which when reacted with and organic isocyanate, has good flow characteristics and makes an all water blown rigid polyurethane foam having good dimensional stability at low core densities of 1.1 pcf to 2.0 pcf. The polyol composition has a polyol component which must have present a polyoxyalkylene polyether polyol having an equivalent weight of 130 or less, an average functionality of 3.1 or greater, and a hydroxyl number of 400 or more, a polyoxyalkylene polyether polyol having an average functionality from 1.5 to 3.1 and a viscosity of less than 800 cP at 25.degree. C., and a polyoxyalkylene polyether polyol having an average functionality of greater than 3.1 and an equivalent weight of greater than 130. The polyol composition also has water as the blowing agent, and further contains a blow catalyst, a delayed action gel catalyst, and preferably a cure catalyst and a surfactant.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: November 11, 1997
    Assignee: BASF Corporation
    Inventors: Thomas L. Fishback, Curtis J. Reichel, Thomas B. Lee
  • Patent number: 5684057
    Abstract: There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; andc) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more.The blowing agent is selected from the group consisting of cyclopentane, HFC's, HCFC's, and mixtures thereof in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: November 4, 1997
    Assignee: BASF Corporation
    Inventors: Walter R. White, III, James A. Mullins, Thomas B. Lee, Keith McLellan, Ronald J. Wierzbicki
  • Patent number: 5681867
    Abstract: The invention pertains to a low weight, low density rigid polyurethane-polyurea reinforced reaction injection molded (RRIM) part having flaked glass reinforcing fibers dispersed throughout a matrix made by reacting polyisocyanates with a resin containing hydroxy group tertiary amine polyether polyols, a blowing agent, and optionally surfactants, chain extenders, and urethane promoting catalysts. The low density RRIM part using flaked glass and the tertiary amine polyether polyols is a low cost alternative to glass fiber reinforced low density parts and the part exhibits a relatively low coefficient of linear thermal expansion and relatively/high temperature deflection properties as compared to other known fillers.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: October 28, 1997
    Assignee: BASF Corporation
    Inventor: Bari W. Brown
  • Patent number: 5678400
    Abstract: A cabled yarn untwister untwists cabled yarn to obtain yarn components. The cabled yarn untwister includes an untwister frame that is rotated by a motorized drive unit (e.g., a hand-held electric drill). The untwister frame is preferably substantially T-shaped and includes a connector leg forming the base of the T-shape and a cross-wise extending yarn attatchment arm. The yarn components are attached to swivels disposed at opposing ends of the yarn attachment arm after which the untwister frame is rotated by the motorized drive unit while maintaining the cabled yarn under tension. Rotation of the untwister frame, in turn, causes the opposing ends of the yarn attachment arm to move in a generally circular orbital path and thereby untwist the individual yarn components of the cabled yarn.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: October 21, 1997
    Assignee: BASF Corporation
    Inventor: Joseph Mitchell Heard
  • Patent number: 5679158
    Abstract: A finish applicator mounting unit includes an apertured member having a plurality of apertures shaped to receive a corresponding plurality of finish applicator nozzles, and a locking mechanism that selectively obstructs the plurality of apertures such that when the corresponding plurality of finish applicator nozzles are received in the plurality of apertures, the finish applicator nozzles are selectively locked in the finish applicator mounting unit. The mounting unit preferably includes an alignment pin that ensures both proper alignment and proper insertion of the finish applicator nozzles. The finish applicator nozzles include a ceramic applicator head fictionally received in an elastic connector. A filament slot is configured to cooperate with the alignment pin to ensure the proper alignment and insertion of the nozzles. The nozzles operate more effectively and efficiently than conventional nozzles, and the mounting unit enables easy access to the nozzles for cleaning, repair and/or replacement.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: October 21, 1997
    Assignee: BASF Corporation
    Inventors: Carl R. Holzer, Jr., Walter L. Shaw, Bobby L. Tinsley, Gary Hanwell
  • Patent number: 5677359
    Abstract: There is now provided a polyisocyanate based rigid closed cell foam made by reacting an organic isocyanate with a polyol composition in the presence of a blowing agent, where the polyol composition contains at least:a) an aromatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more;b) an aliphatic amine initiated polyoxyalkylene polyether polyol having an hydroxyl number of 200 meq polyol/g KOH or more; andc) an aromatic polyester polyol having an hydroxyl number of 200 meq. polyol/g KOH or more.The blowing agent is selected from the group consisting of cyclopentane, HFC's, HCFC's, and mixtures thereof in an amount of 5.0 weight percent or more based on the weight of the polyol composition. Preferably, the blowing agent is soluble in the polyol composition without sacrificing, and advantageously improving, the thermal insulation and dimensional stability of the resulting polyurethane foam.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: October 14, 1997
    Assignee: BASF Corporation
    Inventors: Walter R. White, III, James A. Mullins, Thomas B. Lee, Keith McLellan, Ronald J. Wierzbicki
  • Patent number: 5672635
    Abstract: Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having(i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate;(ii) 30 to 80 pbw 4,4'-diphenylmethane diisocyanate;(iii) 1 to 10 pbw of a mixture of uretonimine with from 10 to 70 parts by weight of a polyol (b) having a number average molecular weight of between 1000 and 10,000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of less than 20 and a viscosity of from 200 to 1000 cPs.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: September 30, 1997
    Assignee: BASF Corporation
    Inventors: Thirumurti Narayan, Steven Hicks
  • Patent number: 5672632
    Abstract: The present invention relates to water-blown integral skin polyurethane foam compositions, molded polyurethane articles, a process of preparing said articles, and an isocyanate composition for use therein. In particular, the invention relates to water-blown integral skin molded polyurethane articles having particularly advantageous physical properties, and compositions useful for producing such articles. In particular, the invention provides a polyurethane composition which has an isocyanate component (a) an isocyanate reactive component (b), a blowing agent comprising water (c), a polyether (d) selected from the group consisting of polytetrahydrofuran and polyethylene glycol having a number average molecular weight of from 200 to 2000 and optionally, one or more additives (e) from the group consisting of catalysts, chain extenders, oxo alcohols, and mixtures thereof.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: September 30, 1997
    Assignee: BASF Corporation
    Inventors: Valeri L. Voloppi, Thirumurti Narayan