Patents Represented by Attorney R. A. Maggio
  • Patent number: 6559090
    Abstract: The present invention is directed to a coordinating catalyst system comprising at least one metallocene or constrained geometry pre-catalyst transition metal compound, (e.g., di-(n-butylcyclopentadienyl)zirconium dichloride), at least one support-activator (e.g., spray dried silica/clay agglomerate), and optionally at least one organometallic compound (e.g., triisobutyl aluminum), in controlled amounts, and methods for preparing the same. The resulting catalyst system exhibits enhanced activity for polymerizing olefins and yields polymer having very good morphology. The support-activator is a layered material having a negative charge on its interlaminar surfaces and is sufficiently Lewis acidic to activate the transition metal compound for olefin polymerization.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: May 6, 2003
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Keng-Yu Shih, Dean Alexander Denton, Michael John Carney
  • Patent number: 5885924
    Abstract: The present invention relates to catalyst supports and improvements thereof for use with supported activators and supported transition metal catalyst systems. The invention specifically involves reacting a carrier containing reactive functionalities, e.g., hydroxyl containing silica, with halogenated organic compounds, e.g., fluorosubstituted phenols. The reaction is preferably carried out in the presence of a base. The reaction consumes undesired functionalities on the support to provide a halogenated support which is suitable for activators and catalytic precursors which are adversely affected by functionalities typically found on supports. The supported activators or catalytic precursors are prepared by contacting the precursors or activators with the halogenated support.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 23, 1999
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: David George Ward
  • Patent number: 5244957
    Abstract: A blend of from 10 to 90 parts by Weight of a basic calcium sulphonate and from 90 to 10 parts by weight of a terpolymer of 50 to 99 wt. % of an olefin containing from 2 to 4 carbon atoms, 1 to 30 wt. % of an unsaturated ester which is a vinyl ester of a carboxylic acid or an ester of acrylic or methacrylic acid and 1 to 20 wt. % of an unsaturated carboxylic acid is particularly useful for car undercoatings for corrosion and chip resistance which may be applied as high solids coatings.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: September 14, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert D. M. Best, Jean F. Brument
  • Patent number: 5242612
    Abstract: A phosphorous- and sulfur-containing additive and its use to impart anti-wear properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed, for example, by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, (2) a phosphorous-containing reactant, such as triethyl phosphite and (3) optionally, a nucleophilic reactant capable of reacting with the episulfonium cation ##STR1## to form thioether species.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: September 7, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jack Ryer, Antonio Gutierrez, James S. Puckace, Raymond F. Watts, Stanley J. Brois, Craig W. Gleason
  • Patent number: 5230817
    Abstract: An oil soluble dispersant additive useful in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of:(i) at least one intermediate adduct comprised of the reaction products of(a) at least one polyanhydride, and(b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and(ii) at least one member selected from the group consisting of(a) at least one long chain hydrocarbyl substituted C.sub.4 -C.sub.10 dicarboxylic acid producing material, or(b) at least one long chain hydrocarbyl substituted hydroxy aromatic material and at least one aldehyde.Also disclosed are oleaginous compositions, particularly lubricating oil compositions, containing these oil soluble dispersants.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: July 27, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert D. Lundberg, Jacob Emert, Antonio Gutierrez
  • Patent number: 5229020
    Abstract: The present invention is directed to branched amido-amine dispersant additives useful in oleaginous compositions formed by (a) reacting a first nitrogen-containing compound (e.g., ammonia or an organic amine) with an alpha, beta-unsaturated compound of the formula: ##STR1## wherein W.sup.1 is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5), and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, to form a first adduct containing unreacted --C(W.sup.1)--Y groups; (b) reacting the first adduct with a polyamine (e.g., a polyalkylene polyamine) to form a second adduct containing unreacted --NH-- groups (preferably primary amine groups) and comprising a branched amido-amine oligomer; and (c) reacting the second adduct with a long chain hydrocarbyl substituted mono- or dicarboyxlic acid material comprising a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: July 20, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5227551
    Abstract: There is disclosed a method of suppressing misting or spatting from an oil-containing functional fluid, such as a chain saw lubricant, by blending with the functional fluid a mist suppressing effective amount of a copolymer of a C.sub.3 or C.sub.4 alpha-monoolefin and at least one other alpha-monoolefin having from 5 to about 20 carbon atoms, said copolymer having a viscosity average molecular weight of from about 500,000 to about 10 million.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: July 13, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Harold E. Bachman, Chung K. Shih
  • Patent number: 5213698
    Abstract: According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) an amido-amine characterized by being a reaction product of an alpha, beta-unsaturated compound of the formula: ##STR1## wherein X is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5) , and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, and bis(para-amino cyclohexyl) methane or oligomers thereof.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: May 25, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg, Robert A. Kleist
  • Patent number: 5205947
    Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydride moieties), and (B) a monoepoxy thiol.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: April 27, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Robert D. Lundberg
  • Patent number: 5185090
    Abstract: A phosphorous- and sulfur-containing additive and its use to impart anti-wear and/or antioxidant properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmittion fluids, is disclosed. The additive comprises a mixture of products formed by simultaneously reacting (1) a betahydroxy thioether, such as thiobisethanol, and (2) a phosphorous-containing reactant, such as tributyl phosphite. The reaction is carried out under reduced pressure conditions (e.g., -40 KPa to -100 KPa) to limit the amount of thioether species in said additive to less than about 45 mole %.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: February 9, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jack Ryer, Antonio Gutierrez, James S. Puckace, Raymond F. Watts, Craig W. Gleason, Daniel R. Mills, Edmund H. Braun, II
  • Patent number: 5171481
    Abstract: A synthetic lubricating fluid comprising at least one ester or its derivative represented by the formula ##STR1## wherein: n is an integer of 0 to 5 and m is an integer of 0 to 5, with the proviso that the sum of n+m is 1 to 10 inclusive;R.sub.1 is independently selected from hydrogen and C.sub.1 to C.sub.8 alkyl groups, andR.sub.2 is independently selected from hydrogen and C.sub.1 to C.sub.3 alkyl groups.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: December 15, 1992
    Assignee: Toa Nenryo Kogyo K.K.
    Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
  • Patent number: 5135669
    Abstract: The present invention provides substantially saturated, e.g., hydrogenated, phospholipid compounds, such as hydrogenated lecithin, which are useful as friction modifying agents for oleaginous compositions such as fuels, and lubricating oils, particularly automatic transmission fluids. The present invention also provides oleaginous compositions containing such phospholipid compounds, and processes for preparing the hydrogenated phospholipids, such as hydrogenated lecithin, and the compositions in which they are contained.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: August 4, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Stanley J. Brois, Jack Ryer, Frank Femino, Harold E. Deen, Antonio Gutierrez
  • Patent number: 5128056
    Abstract: The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of (A) an ethylene-alpha-olefin polymer substituted mono- or dicarboxylic acid material, (B) an optionally alkyl-substituted N-hydroxyaryl compound, (C) an aldehyde, and (D) an amine, wherein the polyer moiety of the mono- or dicarboxylic acid material is derived from at least one terminally unsaturated ethylene alpha-olefin copolymer of 300 to 10,000 number average molecular weight, wherein the terminal unsaturation comprises ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as dispersants.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: July 7, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Won R. Song, Robert D. Lundberg, Robert A. Kleist
  • Patent number: 5114538
    Abstract: Sizing compounds particularly cyclic acid anhydrides are used as such or in solution with non-aqueous protic and/or protic solvents to mass-size cellulose products such as paper, board, cardboard and similar cellulose and synthetic fibre products. In a preferred embodiment, the cyclic acid anhydrides or their solutions in inert solvents are introduced into the wet-end of the paper machine at a position where the paper slurry is in a highly turbulent state so that they are immediately homogenized and reacted with the cellulose stock.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: May 19, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Francesco Malatesta
  • Patent number: 5112510
    Abstract: A lubricating oil composition exhibiting improved flow properties, specifically low temperature flow properties, and viscometric properties, particularly low temperature viscometric properties comprising lubricating oil and(i) an amount effective to improve the low temperature flow properties of said lubricating oil composition of additive consisting essentially of at least one low molecular weight non-ethylene containing polymer or interpolymer containing pendent ester groups comprising repeating methylene units derived from mixture of aliphatic alcohols, said mixture containing at least about 25 weight percent C.sub.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: May 12, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Albert Rossi
  • Patent number: 5085792
    Abstract: A traction fluid comprising:(i) at least one diester or its derivative represented by the formula ##STR1## wherein A' is an ester linkage, n is an integer of 1 to 6, R.sub.1 is independently selected from hydrogen and alkyl groups containing from 1 to 8 carbon atoms, and R.sub.2 is independently selected from alkyl groups containing from 1 to 3 carbon atoms; and(ii) from 0.1 to 70 wt. % of at least one branched poly-alpha-olefin.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: February 4, 1992
    Assignee: Toa Nenryo Kogyo, K.K.
    Inventors: Yoshimura Narihiko, Hirotaka Tamizawa, Yasuji Komatsu
  • Patent number: 5078893
    Abstract: A mutually compatible combination of additives and their use to impart anti-wear, oxidation inhibition and friction modification to power transmission compositions, particularly automatic transmission fluids, is disclosed. The additives comprise an organic phosphite ester such as triphenyl phosphite and a hydroxyl amine compound, such as that having the formula ##STR1## preferably in combination with a dispersant such as a polyisobutenyl succinimide or a borated derivative thereof.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: January 7, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jack Ryer, Antonio Gutierrez
  • Patent number: 5075024
    Abstract: A synthetic traction fluid comprising, as a base oil, at least one ester or its derivative selected from monoesters or their derivatives, and triesters or their derivatives represented by the formula ##STR1## wherein Y is independently selected from ##STR2## and --OH with A' being an ester linkage and R.sub.1 being independently selected from hydrogen and C.sub.1 to C.sub.8 alkyl groups, with the proviso that at least one Y is ##STR3## and R.sub.2 is independently selected from hydrogen and C.sub.1 to C.sub.3 alkyl groups.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: December 24, 1991
    Assignee: Toa Nenryo Kogyo, K.K.
    Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
  • Patent number: 5039437
    Abstract: Additives for improving the low temperature flow properties of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and aldehyde, wherein:(a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;(b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and(c) not more than about 10 mole % of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole % of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be sulfurized, or produced in a branched backbone form in which monomer reactants are copolymerized with certain tri- or tetrafunctional comonomers.
    Type: Grant
    Filed: October 8, 1987
    Date of Patent: August 13, 1991
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: David J. Martella, John J. Jaruzelski
  • Patent number: 5039440
    Abstract: A traction fluid comprising at least one compound selected from diesters or monoesters represented by general formulas ##STR1## wherein: A is an ester linkage ##STR2## n.sub.1 and n.sub.2 are independently integers having a value of from 0 to 5 inclusive;R.sub.1 is hydrogen or a C.sub.1 -C.sub.8 alkyl; andR.sub.2 is a C.sub.1 to C.sub.3 alkyl group.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: August 13, 1991
    Assignee: Toa Nenryo Kogyo, K.K.
    Inventors: Narihiko Yoshimura, Hirotaka Tomizawa