Patents Represented by Attorney R. A. Maggio
-
Patent number: 6559090Abstract: 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: GrantFiled: November 1, 1999Date of Patent: May 6, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Keng-Yu Shih, Dean Alexander Denton, Michael John Carney
-
Patent number: 5885924Abstract: 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: GrantFiled: June 7, 1995Date of Patent: March 23, 1999Assignee: W. R. Grace & Co.-Conn.Inventor: David George Ward
-
Patent number: 5244957Abstract: 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: GrantFiled: April 3, 1991Date of Patent: September 14, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Robert D. M. Best, Jean F. Brument
-
Mixed phosphorous- and sulfur-containing reaction products useful in power transmitting compositions
Patent number: 5242612Abstract: 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: GrantFiled: June 22, 1989Date of Patent: September 7, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Jack Ryer, Antonio Gutierrez, James S. Puckace, Raymond F. Watts, Stanley J. Brois, Craig W. Gleason -
Patent number: 5230817Abstract: 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: GrantFiled: March 28, 1991Date of Patent: July 27, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Robert D. Lundberg, Jacob Emert, Antonio Gutierrez
-
Patent number: 5229020Abstract: 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: GrantFiled: August 5, 1992Date of Patent: July 20, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Robert D. Lundberg
-
Patent number: 5227551Abstract: 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: GrantFiled: June 19, 1991Date of Patent: July 13, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Harold E. Bachman, Chung K. Shih
-
Patent number: 5213698Abstract: 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: GrantFiled: June 4, 1992Date of Patent: May 25, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Robert D. Lundberg, Robert A. Kleist
-
Dispersant additives comprising amine adducts of dicarboxylic acid monoepoxy thiol reaction products
Patent number: 5205947Abstract: 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: GrantFiled: June 27, 1991Date of Patent: April 27, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Robert D. Lundberg -
Patent number: 5185090Abstract: 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: GrantFiled: July 31, 1990Date of Patent: February 9, 1993Assignee: 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: 5171481Abstract: 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: GrantFiled: February 7, 1992Date of Patent: December 15, 1992Assignee: Toa Nenryo Kogyo K.K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
-
Patent number: 5135669Abstract: 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: GrantFiled: May 31, 1991Date of Patent: August 4, 1992Assignee: Exxon Chemical Patents Inc.Inventors: Stanley J. Brois, Jack Ryer, Frank Femino, Harold E. Deen, Antonio Gutierrez
-
Ethylene alpha-olefin copolymer substituted amino phenol mannich base lubricant dispersant additives
Patent number: 5128056Abstract: 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: GrantFiled: March 20, 1991Date of Patent: July 7, 1992Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Won R. Song, Robert D. Lundberg, Robert A. Kleist -
Patent number: 5114538Abstract: 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: GrantFiled: June 19, 1989Date of Patent: May 19, 1992Assignee: Exxon Chemical Patents Inc.Inventor: Francesco Malatesta
-
Patent number: 5112510Abstract: 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: GrantFiled: February 28, 1989Date of Patent: May 12, 1992Assignee: Exxon Chemical Patents Inc.Inventor: Albert Rossi
-
Patent number: 5085792Abstract: 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: GrantFiled: January 27, 1989Date of Patent: February 4, 1992Assignee: Toa Nenryo Kogyo, K.K.Inventors: Yoshimura Narihiko, Hirotaka Tamizawa, Yasuji Komatsu
-
Patent number: 5078893Abstract: 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: GrantFiled: June 24, 1988Date of Patent: January 7, 1992Assignee: Exxon Chemical Patents Inc.Inventors: Jack Ryer, Antonio Gutierrez
-
Patent number: 5075024Abstract: 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: GrantFiled: November 22, 1988Date of Patent: December 24, 1991Assignee: Toa Nenryo Kogyo, K.K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa, Yasuji Komatsu
-
Patent number: 5039440Abstract: 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: GrantFiled: March 31, 1988Date of Patent: August 13, 1991Assignee: Toa Nenryo Kogyo, K.K.Inventors: Narihiko Yoshimura, Hirotaka Tomizawa
-
Patent number: 5039437Abstract: 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: GrantFiled: October 8, 1987Date of Patent: August 13, 1991Assignee: Exxon Chemical Patents, Inc.Inventors: David J. Martella, John J. Jaruzelski