Abstract: This invention provides water-based compositions, particularly coating, ink, adhesive, fountain solution and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of a mixture of a non-fluorinated anionic compound and a non-fluorinated weak base cationic compound, the mixture demonstrating a dynamic surface tension (DST) which is less than the DST of the individual anionic and cationic compounds and less than 45 dynes/cm, at a concentration of ?5 wt % in water at 23° C. and 20 bubbles/second or less than 40 dynes/cm at a concentration of ?0.03M in water at 23° C. and 0.1 bubbles/second according to the maximum-bubble pressure method.
Type:
Grant
Filed:
March 29, 2002
Date of Patent:
August 29, 2006
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Carrington Duane Smith, Evelyn Jennifer Lin Paulsen, Peng Zhang, Robert Krantz Pinschmidt, Jr.
Abstract: Compositions containing surfactant compounds according to formula (I) ROCH2CH(OH)CR1R2ZCR1R2CH(OH)CH2OR,??(I) wherein Z is S, SO, or SO2, can have a range of equilibrium and/or dynamic surface tensions and a range of foaming performance attributes, depending upon the particular values of Z, R, R1, and R2. The compounds of formula (I) may be prepared by a process that includes reaction of a sulfide source such as a metal sulfide or bisulfide with an alkyl glycidyl ether.
Type:
Grant
Filed:
July 26, 2004
Date of Patent:
May 23, 2006
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Gauri Sankar Lal, Williams Rene Edouard Raymond, Khalil Yacoub
Abstract: This invention relates to a process for the catalytic hydrogenation of impurity laden methylenedianiline feedstocks commonly referred to a MDA-50 and MDA-60. The process for hydrogenating methylenedianiline containing at least 40% oligomer function by weight comprises: contacting the feedstock with hydrogen in the presence of a rhodium/ruthenium containing catalyst system carried on a lithium aluminate support under conditions for effecting ring hydrogenation.
Type:
Grant
Filed:
May 19, 2004
Date of Patent:
May 2, 2006
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Hao Ding, Gamini Ananda Vedage, William R. Martine, Vipul P. Dholakia
Abstract: The present invention relates to novel tertiary alkanolamines useful as catalysts for preparing polyurethane foams and as additives to reduce the dynamic surface tension of aqueous solutions. The tertiary alkanolamines may be represented by formula (I): wherein A, R1–R6, and n are defined herein, and where the tertiary alkanolamine is acid-blocked with a carboxylic acid.
Type:
Grant
Filed:
December 10, 2003
Date of Patent:
April 11, 2006
Assignee:
Air Products and Chemicals, Inc.
Inventors:
William R. Raymond, Juan Jesus Burdeniuc, Khalil Yacoub
Abstract: The present invention relates to novel tertiary alkanolamines useful as catalysts for preparing polyurethane foams and as additives to reduce the dynamic surface tension of aqueous solutions. The tertiary alkanolamines may be represented by formula (I): wherein A, R1–R6, and n are defined herein.
Type:
Grant
Filed:
March 10, 2003
Date of Patent:
February 14, 2006
Assignee:
Air Products and Chemicals, Inc.
Inventors:
William R. Raymond, Juan Jesus Burdeniuc, Khalil Yacoub
Abstract: The invention is directed to an improvement in a catalytic process for the ring hydrogenation of a methylenedianiline feedstock, including crude methylenedianiline. One component of the improvement is a pretreatment process which resides in passing the crude methylenedianiline feedstock over a ruthenium catalyst carried on a fixed bed support, cooling without venting, and then hydrogenation of the pretreated crude methylenedianiline feedstock over a rhodium catalyst or a mixed Rh/Ru catalyst carried on a monolith support and carrying out the ring hydrogenation in a batch reaction. Another component in the improvement is the employment of a catalyst comprised of rhodium and ruthenium carried on a monolith support.
Type:
Grant
Filed:
August 24, 2004
Date of Patent:
February 14, 2006
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Hao Ding, Anthony Rocco Cartolano, Vipul P. Dholakia, Gamini Ananda Vedage
Abstract: This invention provides water-based compositions, particularly coating, ink, fountain solution, adhesive and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain malate diester compounds of the structure where R1 and R2 are C3 to C6 alkyl groups.
Type:
Grant
Filed:
January 9, 2002
Date of Patent:
November 29, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Kevin Rodney Lassila, Caroline Sassano Slone
Abstract: This invention relates to improved catalytic compositions suited for use in hydrogenation processes and to an improved process for hydrogenating organic compounds as in amination of alcohols or hydrogenation of nitrile and nitro groups to the amine using the catalyst. The catalytic composition is more particularly an improvement in nickel catalysts promoted with palladium carried on a support. The improvement resides in including a promoting effect of a metal M and/or its oxide, selected from Zn, Cd, Cu, and Ag, typically from about 0.01 to 10% by weight of the support.
Abstract: The present invention provides compounds useful as surfactants having formula (1), including isomers thereof: wherein a and b are integers independently selected from about 3 to about 6; x is an integer from about 1 to about 12; (m+n) is from about 1 to about 4; the R1 groups are independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about C3 to about C30 atoms; and when (m+n) is equal to or greater than 2, each R1 may be independently R2 or R3, wherein R2 and R3 are independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about C3 to about C30 atoms. The invention also provides a method for reducing surface tension in a waterborne composition or an industrial process by the incorporation of a surfactant having formula (1) and an aqueous composition comprising a surfactant having formula (1).
Type:
Grant
Filed:
March 13, 2003
Date of Patent:
August 2, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Christine Peck Kretz, Michael Edward Ford, Kevin Rodney Lassila
Abstract: Rigid polyurethane blowing agent enhancers, methods for using them, and the products produced by these methods are disclosed. The enhancers are low molecular weight alcohols and/or ethers that assist the action of blowing agents comprising a hydrohalocarbon compound.
Abstract: A water-soluble composition including a water soluble polyamine adduct which is a reaction product of: (a) an alkoxy group modified polyepoxide resin containing an average of at least 1.5 epoxide groups per molecule; and (b) a Mannich base polyamine. The Mannich base polyamine is a reaction product of a polyamine containing at least two amino groups with a N-Mannich condensate prepared from a reaction of a phenolic compound, an aldehyde, and a secondary amine wherein the secondary amine of the N-Mannich condensate is replaced by one of the at least two amino groups of the polyamine, and wherein the ratio of the Mannich base polyamine to the alkoxy group modified polyepoxide resin contains an excess of an active amine hydrogen relative to epoxide groups so that the water soluble polyamine adduct has an amine hydrogen equivalent weight of at most 1000 based on solids content.
Abstract: This invention relates to improved catalytic compositions suited for use in hydrogenation processes and to an improved process for hydrogenating organic compounds as in amination of alcohols or hydrogenation of nitro groups to the amine using the catalyst. The catalytic composition is more particularly an improvement in nickel catalysts promoted with palladium carried on a support. The improvement resides in including a promoting effect of a metal M and/or its oxide, selected from Zn, Cd, Cu, and Ag, typically from about 0.01 to 10% by weight of the support.
Abstract: An MDI/polypropylene polyether prepolymer composition consisting essentially of at least 80 wt % perfect prepolymers and less than 2 wt % free MDI monomer suitable for use in polyurethane adhesive compositions optionally also comprising a curative for isocyanate groups.
Type:
Grant
Filed:
April 12, 2001
Date of Patent:
April 26, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Andrea Karen Smith, Richard Joseph Goddard, Evelyn Jennifer Lin Paulsen
Abstract: This invention relates to improved catalytic compositions suited for use in hydrogenation processes and to an improved process for hydrogenating organic compounds as in amination of alcohols or hydrogenation of nitrile and nitro groups to the amine using the catalyst. The catalytic composition is more particularly an improvement in nickel catalysts promoted with palladium carried on a support. The improvement resides in including a promoting effect of a metal M and/or its oxide, selected from Zn, Cd, Cu, and Ag, typically from about 0.01 to 10% by weight of the support.
Abstract: A structural polyurethane adhesive composition comprising a polyurethane reaction product and a curative for isocyanate groups, characterized in that the polyurethane reaction product consists essentially of at least 80 wt % perfect prepolymers and less than 2 wt % free isocyanate monomer.
Type:
Grant
Filed:
April 12, 2001
Date of Patent:
March 15, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Evelyn Jennifer Lin Paulsen, Andrea Karen Smith
Abstract: This invention provides water-based compositions, particularly coating, ink, fountain solution and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of an acetylenic diol ethylene oxide/propylene oxide adduct of the structure: where r and t are 1 or 2, (n+m) is 1 to 30 and (p+q) is 1 to 30. Also disclosed is a method for making random and block EO/PO adducts of acetylenic diols by reacting an acetylenic diol with EO and/or PO in the presence of a trialkylamine or Lewis acid.
Type:
Grant
Filed:
October 11, 2001
Date of Patent:
March 8, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Kevin Rodney Lassila, Paula Ann Uhrin, Joel Schwartz
Abstract: A catalyst composition for catalyzing a polyurethane forming reaction includes a gelling catalyst and a blowing catalyst selected such that the resulting polyurethane foam has a low level of volatile and/or malodorous material in it. The gelling catalysts are selected from tertiary aminoalkyl substituted primary or secondary amines; and the blowing catalysts are selected from bis(aminoalkyl) ethers comprising alkanol moieties, primary amine moieties, or ureido moieties derived from such primary amine moieties.
Type:
Grant
Filed:
October 27, 2003
Date of Patent:
February 22, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Stephan Herman Wendel, Steven Paul Hulme, Mark Leo Listemann, Reza Fard-Aghai, Juan Jesus Burdeniuc
Abstract: A process for producing an alkanolamine includes supplying a reactive distillation apparatus having an inner contacting surface which simultaneously facilitates a reaction process and a distillation process, feeding a first reactant including an amine represented by R?3-XNHX, wherein R? is a hydrocarbon group, and X is 1, 2, or 3, feeding a second reactant including an akylene oxide represented by R?O, wherein R? is a C2-C10-alkylene, feeding a catalyst in an amount from 0% to about 15% by weight of a mixture of the first reactant, the second reactant and the catalyst; recycling an overhead output from an overhead portion including an unreacted portion of the amine and the catalyst to achieve a substantially total reflux of the amine and the catalyst, and collecting a product output including an alkanolamine, the alkanolamine being a member selected from the group consisting of a monoalkanolamine, a dialkanolamine, and a trialkanolamine.
Type:
Grant
Filed:
October 7, 2002
Date of Patent:
January 25, 2005
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Diwakar Garg, Shashank Navin Shah, Matthew Joseph Okasinski, Ava S. Drayton-Elder
Abstract: The present invention relates to a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, a gelling catalyst, a blowing catalyst, and a tertiary amino alkyl amide catalyst composition. The catalyst composition is represented by the formula I:
wherein R1, R2, R3, R4, R5, R6, A, and n are as defined herein and wherein the tertiary amino alkyl amide catalyst of formula I is acid-blocked.
Abstract: The present invention relates to an improvement in flexible, semi-flexible and rigid foams formed by the catalytic reaction of an aromatic polyisocyanate, a polyol and a blowing agent and a process for preparing such polyisocyanate. The improvement resides in using an effective amount of a bismuth carboxylate or bismuth sulfonate having less than 34% free acid as the catalyst.
Type:
Grant
Filed:
January 29, 2003
Date of Patent:
November 30, 2004
Assignee:
Air Products and Chemicals, Inc.
Inventors:
Peter Charles Hohl, Lisa Ann Mercando, James Douglas Tobias