Patents by Inventor Edward D. Weil

Edward D. Weil 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).

  • Patent number: 4276234
    Abstract: A process is provided for the preparation of diaryl methylphosphonates through the reaction of triaryl phosphites with methanol in the presence of a catalytic quantity of methyl iodide. The reaction is conducted at a temperature of from about 170.degree. C. to about 250.degree. C. New and useful derivatives are produced by reaction of the diaryl methylphosphonates with polyols or amines.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: June 30, 1981
    Assignee: Stauffer Chemical Company
    Inventors: Milton L. Honig, Edward D. Weil
  • Patent number: 4252967
    Abstract: Dihaloneopentyl silicates are solid compositions formed by esterification of silicon halides or silicate esters with dihaloneopentyl glycol. These compositions are useful as flame retardants in plastic formulations.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: February 24, 1981
    Assignee: Stauffer Chemical Company
    Inventors: Alfred K. Jung, Michael Turczyk, Edward D. Weil
  • Patent number: 4251436
    Abstract: An inorganic filler material which has improved compatibility characteristics with certain polymeric substrates is disclosed. This filler material is one which is treated with an effective amount, for such improved compatibility of a composition containing a saturated hydrocarbyl acid phosphate and/or pyrophosphate compound, or an alkali metal or alkaline earth salt thereof.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: February 17, 1981
    Assignee: Stauffer Chemical Company
    Inventors: Joseph Silberberg, Edward D. Weil
  • Patent number: 4242288
    Abstract: A novel flame retardant composition is provided wherein the major component is a triphosphate ester of the formula: ##STR1## wherein R represents an alkylene radical of from 2 to about 10 carbon atoms and the halosubstituted derivatives thereof, R' represents an alkylene radical of from 2 to 3 carbon atoms, X represents a halogen of chlorine or bromine, and n is an integer of from 1 to 5. In the preferred composition, R is ethylene or propylene and R' is ethylene, X is chlorine and n is 1. The compositions are less fugitive than the prior art diphosphate compositions yet easier to prepare than low volatility phosphates presently manufactured by polycondensation.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: December 30, 1980
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4240956
    Abstract: Tri(dibromoneopentyl) antimonite is a solid composition formed by the transesterification of antimony triesters with dibromoneopentylene glycol. This antimonite composition is useful as a flame retardant in plastic formulations.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: December 23, 1980
    Assignee: Stauffer Chemical Company
    Inventors: Edward D. Weil, Alfred K. Jung, Joseph Silberberg
  • Patent number: 4225522
    Abstract: Copolycondensation products of .beta.-haloalkyl phosphates and dialkyl phosphonates are useful fire retardant agents. The products are prepared by heating the starting materials at a temperature of about 110.degree. to 250.degree. C., preferably in the presence of a nucleophilic catalyst, until at least one mole of alkyl halide per mole of phosphonate is driven off. Preferred are copolycondensation products obtained by substantially complete removal of halogen as alkyl halide.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: September 30, 1980
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4207271
    Abstract: A process is provided for the preparation of diaryl methylphosphonates through the reaction of triaryl phosphites with methanol in the presence of a catalytic quantity of methyl iodide. The reaction is conducted at a temperature of from about 170.degree. C. to about 250.degree. C. New and useful derivatives are produced by reaction of the diaryl methylphosphonates with polyols or amines.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: June 10, 1980
    Assignee: Stauffer Chemical Company
    Inventors: Milton L. Honig, Edward D. Weil
  • Patent number: 4202842
    Abstract: Copolycondensation products of .beta.-haloalkyl phosphates and dialkyl phosphonates are useful fire retardant agents. The products are prepared by heating the starting materials at a temperature of about 110.degree. to 250.degree. C., preferably in the presence of a nucleophilic catalyst, until at least one mole of alkyl halide per mole of phosphonate is driven off. Preferred are copolycondensation products obtained by substantially complete removal of halogen as alkyl halide.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: May 13, 1980
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4171271
    Abstract: The present invention is a process for making thiobisphenol phosphorus acid esters by reacting aryl esters of pentavalent phosphorus acids with sulfur halides. The invention also encompasses groups of novel compounds made by the process. Said compounds can be used in functional fluids.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: October 16, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4152371
    Abstract: Copolycondensation products of .beta.-haloalkyl phosphates and dialkyl phosphonates are useful fire retardant agents. The products are prepared by heating the starting materials at a temperature of about 110.degree. to 250.degree. C., preferably in the presence of a nucleophilic catalyst, until at least one mole of alkyl halide per mole of phosphonate is driven off. Preferred are copolycondensation products obtained by substantially complete removal of halogen as alkyl halide.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: May 1, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4152373
    Abstract: A process is provided for the preparation of diaryl methylphosphonates through the reaction of triaryl phosphites with methanol in the presence of a catalytic quantity of methyl iodide. The reaction is conducted at a temperature of from about 170.degree. C. to about 250.degree. C. New and useful derivatives are produced by reaction of the diaryl methylphosphonates with polyols or amines.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: May 1, 1979
    Assignee: Stauffer Chemical Company
    Inventors: Milton L. Honig, Edward D. Weil
  • Patent number: 4145547
    Abstract: Novel ureidoalkylphosphonates, methods for their prepration as well as for their use in preparing durable, flameproof finishes for textiles are disclosed. These ureidoalkylphosphonates are found to be low in cost, readily prepared and of minimal toxicity.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: March 20, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4086303
    Abstract: Copolycondensation products of .beta.-haloalkyl phosphates and dialkyl phosphonates are useful fire retardant agents. The products are prepared by heating the starting materials at a temperature of about 110.degree. to 250.degree. C., preferably in the presence of a nucleophilic catalyst, until at least one mole of alkyl halide per mole of phosphonate is driven off. Preferred are copolycondensation products obtained by substantially complete removal of halogen as alkyl halide.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: April 25, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4067927
    Abstract: There are disclosed novel copolycondensed vinylphosphonates and a process for their preparation. These products may be used as flame retardant monomers and are especially suitable for flame retarding textiles and a variety of other flammable substrates.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: January 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4059615
    Abstract: This invention relates to novel .alpha.-lower alkoxy-o-cresyl carbamates having utility as insecticides and polymer intermediates.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: November 22, 1977
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: Edward D. Weil
  • Patent number: 4052158
    Abstract: A process for producinga wash-durable finish on a textile is provided which comprises applying to the textile an effective amount of:A. at least one free-radical polymerizable monomer having a functional group capable of undergoing an acid catalyzed condensation reaction withB. at least one co-reactant having a reactive methylol, hydroxy, alkoxy or amino group capable of undergoing acid-catalyzed condensation with a reactive group on said free radical polymerizable monomer;C. at least one free radical generating catalyst and at least one acid catalyst, or at least one catalyst having both free radical generating and acidic characteristics, andD. subjecting said textile to curing conditions to conjointly effect free radical polymerization and acid-catalyzed condensation reactions.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: October 4, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4051201
    Abstract: The present invention is a process for making thiobisphenol phosphorus acid esters by reacting aryl esters of pentavalent phosphorus acids with sulfur halides. The invention also encompasses groups of novel compounds made by the process.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: September 27, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4049754
    Abstract: Compounds of the formula:[(BrCH.sub.2).sub.3 CCH.sub.2 O].sub.2 P(O)Rwherein R is a functional group selected from the group consisting of --CH.dbd.CH.sub.2,--CH.sub.2 X, --OR'OC(O)CH.dbd.CH.sub.2, --OR'OC(O)C(CH.sub.3).dbd.CH.sub.2, --O(R'O).sub.n H, --OH, --Cl, and NR"R"', wherein R' is a C.sub.1 -C.sub.4 alkylene group, wherein R" and R"' are the same or different and are selected from the group consisting of hydrogen, lower alkyl, e.g. C.sub.1 -C.sub.8, preferably C.sub.1 -C.sub.4, phenyl, hydroxyalkyl, e.g., hydroxy C.sub.1 -C.sub.8, or, preferably hydroxy C.sub.1 -C.sub.4, and allyl groups, wherein X is selected from the group consisting of chlorine and bromine and wherein n is an integer between 1 and 20 are disclosed. These compounds have flame retardancy characteristics and are useful either as flame retardant additives or as reactive flame retardants which can react to confer durable flame retardancy on textiles or other polymer products.
    Type: Grant
    Filed: September 23, 1976
    Date of Patent: September 20, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4044006
    Abstract: Novel ureidoalkylphosphonates, methods for their preparation as well as for their use in preparing durable, flameproof finishes for textiles are disclosed. These ureidoalkylphosphonates are found to be low in cost, readily prepared and of minimal toxicity.
    Type: Grant
    Filed: May 2, 1973
    Date of Patent: August 23, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4017257
    Abstract: There are disclosed novel copolycondensed vinylphosphonates and a process for their preparation. These products can be used as flame retardant monomers and are especially suitable for flame retarding textiles and a variety of other flammable substrates.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: April 12, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil