| Patent Number |
Title Of Patent |
Date Issued |
| 5206075 |
Sealable polyolefin films containing very low density ethylene copolymers |
April 27, 1993 |
| The invention provides laminar polyolefin film materials having a base film layer comprising a blend of an olefin polymer and up to about 30% by weight of at least one very low density copolymer of ethylene and a C.sub.3 to C.sub.20 alpha olefin comonomer copolymerizable with ethylene, |
| 5205947 |
Dispersant additives comprising amine adducts of dicarboxylic acid monoepoxy thiol reaction prod |
April 27, 1993 |
| 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 monoe |
| 5202395 |
Manufacturing process control and product characterization |
April 13, 1993 |
| The viscous and elastic components of a viscoelastic melt, for example a polymer melt, are examined to provide information useful in quality control in the process for the manufacture of the material. Measurement of the entrance pressure drop exhibited by the viscoelastic fluid when forc |
| 5200469 |
Crosslinked elastomeric polymers and process for producing the same |
April 6, 1993 |
| A crosslinked, unsaturated elastomeric polymer of a C.sub.4 to C.sub.7 isomonoolefin and a C.sub.4 to C.sub.14 conjugated multiolefin is produced by curing the corresponding uncrosslinked polymer having a low level of chemically bound halogen with a curing agent which reacts only with th |
| 5200448 |
Freeze-thaw stable polyacrylamide emulsions |
April 6, 1993 |
| Water-in oil emulsions of water-soluble polymers, i.e. polyacrylamides, are stabilized against repeated freeze-thaw cycles by incorporating specific polymeric surfactants while maintaining the total amount of the primary surfactant at less than about 2 percent. |
| 5200103 |
Ethylene alpha-olefin copolymer substituted Mannich base lubricant dispsersant additives |
April 6, 1993 |
| The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene al |
| 5200096 |
Method of inhibiting corrosion in acidizing wells |
April 6, 1993 |
| Corrosion inhibitor additives are added directly to an aqueous acid solution used in acidizing subterranean formations. The additives comprise a bismuth compound, a quaternary compound, and a surfactant. The corrosion inhibitor is free of toxic Sb and acetylenic compounds. |
| 5198401 |
Ionic metallocene catalyst compositions |
March 30, 1993 |
| Ionic catalyst compositions can be prepared by combining two components. The first component is a bis(cyclopentadienyl) Group IV-B metal complex containing at least one ligand which will combine irreversibly with the second component or at least a portion thereof such as a cation portion |
| 5191052 |
Copolymers of ethylene and 1,3-butadiene |
March 2, 1993 |
| Ethylene 1,3 Butadiene copolymers having in their structure cyclopentane rings connected in a trans 1,2 position. The ethylene copolymers of the invention may be formed from polymerization of ethylene and 1,3 butadiene and preferably have a predominance of the copolymer units formed as t |
| 5191042 |
Process for preparing alpha-olefin copolymers having a narrow MWD and broad compositional distri |
March 2, 1993 |
| The present invention is directed toward novel copolymers of ethylene and at least one other alpha-olefin monomer which copolymers have an intermolecular compositional distribution (CD), such that at least about 25% by weight of the polymer differs from the mean ethylene content of the |
| 5191022 |
Covulcanizable polymer blends and process for producing the same |
March 2, 1993 |
| A covulcanizable polymer blend of a highly unsaturated rubbery polymer and a sulfer imide-modified teropolymer of ethylene, a higher alpha olefin and a non-conjugated diene is provided. Processes for preparing the blend and vulcanizing the blend are also provided. |
| 5187240 |
Process for preparing N-halothiosulfonamide-modified non-rubbery thermoplastic olefins |
February 16, 1993 |
| N-halothiosulfonamide-modified non-rubbery thermoplastic polyolefins are provided. The modified polyolefin products are prepared by reaction of a non-rubbery thermoplastic polyolefin polymer with an N-halothiosulfonamide in the absence or, preferably, in the presence of a catalyst. The |
| 5186851 |
Ethylene alpha-olefin copolymer substituted mannich base lubricant dispersant additives |
February 16, 1993 |
| The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene al |
| 5185395 |
AMPS copolymer emulsions with improved stability |
February 9, 1993 |
| Copolymer water-in-oil emulsions of 2-acrylamido-2-methylpropane sulphonic acid (AMPS) monomer and an anionic comonomer such as methacrylic acid are prepared with substantially less coagulum formation by means of a specific dual surfactant system. The resultant emulsions have enhanced lo |
| 5185090 |
Low pressure derived mixed phosphorous- and sulfur-containing reaction products useful in power |
February 9, 1993 |
| 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 c |
| 5183867 |
Polymerization process using a new supported polymerization catalyst |
February 2, 1993 |
| An olefin polymerization supported catalyst comprising the supported reaction product of at least one metallocene of a metal of Group IVB, VB, and VIB of the Periodic Table, a non-metallocene transition metal containing compound of a Group IVB, VB, or VIB metal and an alumoxane, said |
| 5182350 |
Ozone-resistant butyl elastomer |
January 26, 1993 |
| Ozone resistant vulcanizable copolymers of isoolefins with non-conjugated dienes of the general formula: ##STR1## where R.sub.1 is ##STR2## and R.sub.2 is alkyl of 1 to 6 carbon atoms and vulcanizates thereof. The copolymers are prepared by polymerization in the presence of L |
| 5182333 |
Production of rubbery isoolefin polymers |
January 26, 1993 |
| A substantially gel free C.sub.4 to C.sub.7 isoolefin homopolymer rubber, butyl copolymer rubber, halogenated butyl rubber (e.g., chlorinated or brominated), or mixtures thereof, comprising a molecular weight distribution such that the ratio of the moments of said molecular weight di |
| 5182069 |
Process for producing micropattern-embossed oriented elastomer films |
January 26, 1993 |
| Elastomer film is extruded or coextruded against an engraved geometric micropattern roll which forms a geometric pattern of raised intersecting ridges or ribs on the film surface, and subsequently oriented in one or both directions to produce a heat-shrinkable, elastic film which retains |
| 5182039 |
Synergistic fluorinated ore flotation aids |
January 26, 1993 |
| Flotation aids, for use in ore flotation and beneficiation processes, comprising polyamines in the presence of fluorosubstituted organic compounds, either mixed therewith or at least partially-neutralized thereby, such that the resulting compositions separate silicate impurities and |
| 5182013 |
Naphthenic acid corrosion inhibitors |
January 26, 1993 |
| Naphthenic acid corrosion in refinery distillation units is inhibited by introducing into the units effective amounts of a polysulfide corrosion inhibitor. |
| 5180797 |
Process for converting polyketones to polyesters with organic peroxy acid |
January 19, 1993 |
| A polyketone having a molecular weight greater than 1,000 and containing 0.01 to 50 mole percent carbonyl groups is contacted directly with an organic peroxyacid to produce a polyester. The polyketone is in a single homogenous phase during the oxidation process and may be in either solid |
| 5179151 |
Internal resin-tackified acrylic polymers containing crosslinkable comonomers |
January 12, 1993 |
| Acrylic copolymer compositions which contain a tackifying hydrocarbon resin and a polyfunctional crosslinking monomer and the use of such composition in pressure-sensitive adhesives are described. The tackifying hydrocarbon resin is dissolved, as is the polyfunctional monomer, in a solut |
| 5177290 |
Isoprene process |
January 5, 1993 |
| The present invention is directed to a process for producing dienes which involves reacting a reaction mixture of tertiary alkyl ether and a source of oxygen over two functionally distinct catalysts under reaction conditions sufficient to produce high yields of the dienes with minimal |
| 5177288 |
Polybutene process |
January 5, 1993 |
| Polybutene is prepared from a mixed C.sub.4 hydrocarbon feedstream using an organo-aluminum/HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polybutene product having a very narrow molecular weight distribution is |
| 5173343 |
Narrow molecular weight distribution ethylene-acrylate cling layer in stretch/cling films |
December 22, 1992 |
| A thermoplastic film is provided which is especially suited for use in stretch/cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising a polymer of at least ethylene and 2-40 wt % acrylate having |
| 5171923 |
Recycle for process for purification of linear paraffins |
December 15, 1992 |
| A process for purifying linear paraffins in which a hydrocarbon feedstream containing linear paraffins contaminated with aromatics, sulfur-, nitrogen-, and oxygen-containing compounds, and color bodies, and also containing up to about 5 wt % desorbent from effluent recycle, is contac |
| 5171793 |
Hydrogenated resins, adhesive formulations and process for production of resins |
December 15, 1992 |
| A thermally polymerized hydrogenated hydrocarbon resin and a novel process for hydrogenating a hydrocarbon resin. The resin is a copolymer of a feed which is a mixture of styrene and indene and derivatives thereof and cyclodiene monomers and dimers and optionally acyclic dienes. The proc |
| 5171628 |
Low creep polypropylene textiles |
December 15, 1992 |
| Low creep polypropylene textiles are disclosed which comprise a blend of isotactic polypropylene with 10-30 weight percent of a resin obtained by hydrogenating polymerized olefinically unsaturated monomers derived from petroleum cracking, e.g., polydicyclopentadiene. The hydrocarbon resi |
| 5169824 |
Catalyst comprising amorphous NiO on silica/alumina support |
December 8, 1992 |
| The present invention provides for a catalyst composition which is effective for use in the production of dimer products and higher olefin products from lower olefins such as propylene and butene in high yields and with an average degree of branching in the dimer products of less than |
| 5167848 |
Grafted viscosity index improver |
December 1, 1992 |
| Oil soluble grafted ethylene-alpha-olefin copolymer useful as a viscosity modifier for oleaginous compositions comprising:(i) backbone copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing a |
| 5166289 |
Thermoset coating composition having improved hardness |
November 24, 1992 |
| The present invention provides for amino-crosslinkable coating formulations based on a mixture of a di or polyhydroxy functional polymeric component selected from the group consisting of diesters, polyesters, alkyd polymers, acrylic polymers and polycarbonate polymers, a methylol (al |
| 5164441 |
Internal resin-tackified acrylic polymers |
November 17, 1992 |
| Acrylic copolymer PSA compositions having enhanced peel strength without substantially decreasing shear properties have been formulated by homogeneously incorporating the tackifying resin into the polymer matrix. The tackifying resin is dissolved into a solution of alkyl (meth) acrylate |
| 5162526 |
Macrocyclic polyamine and polycyclic polyamine multifunctional lubricating oil |
November 10, 1992 |
| There are disclosed macrocyclic and polycyclic polyamide lubricating oil additives formed by cyclodehydration of reaction products of hydrocarbon substituted succinic anhydrides or carboxylic acids with poly 3-amino propyl compounds or by acylation of macrocyclic polyamines and polycycli |
| 5162445 |
Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof |
November 10, 1992 |
| A copolymer of a C.sub.4 to C.sub.7 isoolefin and a para-alkylstyrene is provided as well as the corresponding halogenated, functionalized and grafted derivatives thereof. Processes for producing these copolymers are also provided. |
| 5160465 |
Process of insulating a body cavity |
November 3, 1992 |
| A method for in situ expansion for example in a car pillar includes a base polymer derived of ethylene and an olefinically unsaturated acrylic ester with an MI of from 0.1 to 6 and containing from 10 to 40% of ester derived units. The composition is foamed and cross-linked to adhere to t |
| 5158696 |
Oil soluble dispersant additives modified with bis-keto/thioketo compounds |
October 27, 1992 |
| 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 nitrogen- or ester-containing ashless dispersant and (B) a bis-keto/thioketo compound. |
| 5157201 |
Process for adsorbing sulfur species from propylene/propane using regenerable adsorbent |
October 20, 1992 |
| A method of removing sulfur components from a hydrocarbon stream which involves contacting a hydrocarbon stream including an initial amount of at least one sulfur species selected from the group consisting of mercaptans, organic sulfides, and disulfides with a catalyst capable of adsorbi |
| 5155197 |
Copolymer of propylene and trans-1,4-hexadiene and method for preparation thereof |
October 13, 1992 |
| A copolymer of trans-1,4-hexadiene and propylene, and a method for its preparation. The copolymer is isotactic, essentially free of cis-1,4-hexadiene, and contains from 0.01 to 5 mole percent 1,4-hexadiene. The copolymer is radiation-stabilized against molecular weight degradation, a |
| 5154981 |
Tackified ethylene-acrylate cling layers in stretch/cling films |
October 13, 1992 |
| A thermoplastic film is provided which is especially suited for use in stretch/cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising (i) a polymer of at least ethylene and acrylate or vinyl |
| 5153282 |
Preparation of polyolefin incorporating functional groups from masked functional group-containin |
October 6, 1992 |
| Polymers of olefin monomers and a substantially uniform concentration of carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers. Polymers of olefin monomers and carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers |
| 5153157 |
Catalyst system of enhanced productivity |
October 6, 1992 |
| This invention relates to catalyst systems, and a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers. This invention catalyst system comprises a Group III-A element compound for impro |
| 5152925 |
Polymeric defoamer compositions |
October 6, 1992 |
| Polymeric defoamer compositions are prepared from hydroxyalkylacrylate or methacrylate containing polymers which are then solubilized in an organic carrier system. The polymers are effective defoamers and drainage aids for brown stock washers, screen rooms, and in other paper-making oper |
| 5152807 |
Fuel oil compositions containing guanidinium salts |
October 6, 1992 |
| Sediment and color formation in diesel and heating fuel oils, especially those comprising a cracked fraction, may be reduced by incorporating in the fuel oil a guanidinium or substituted guanidinium salt. |
| 5151467 |
N-halothiosulfonamide modified rubber products and process for preparing the same |
September 29, 1992 |
| N-halothiosulfonamide-modified rubber products are provided. The modified rubber products are prepared by reaction of a rubber, such as a butyl rubber or a halogenated butyl rubber, with a N-halothiosulfonamide in the absence or in the presence of a catalyst. |
| 5151204 |
Oleaginous compositions containing novel ethylene alpha-olefin polymer viscosity index improver |
September 29, 1992 |
| The present invention is directed to a lubricating oil composition exhibiting improved viscosity index comprising lubricating oil and a viscosity improving effective amount of ethylene alpha-olefin polymer comprising monomer units derived from ethylene and at least one alpha-olefin r |
| 5147949 |
Polymerization process using a silica gel supported metallocene-alumoxane catalyst |
September 15, 1992 |
| This invention relates to a process for polymerizing olefin using a supported metallocene alumoxane catalyst, which can be used in slurry or liquid phase polymerization of olefins. The invention relates to the use of silica gel containing from about 10 to about 50% by weight adsorbed |
| 5147708 |
Thermoplastic films for use in stretch/cling applications |
September 15, 1992 |
| A thermoplastic film is provided which is especially suited for use in stretch/cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising a polymer of at least ethylene and acrylate, preferably with |
| 5146042 |
Desulfurization of light olefins |
September 8, 1992 |
| This invention provides a simple process for the removal of organo sulfide contaminants from lower C.sub.2 to C.sub.4 olefin feedstocks comprising washing the lower olefin containing the sulfide contaminant with a liquid C.sub.6 or higher olefin which is a solvent for the sulfur contamin |
| 5146040 |
Process for separating dimethylnaphthalene isomers with zeolite L agglomerates |
September 8, 1992 |
| Zeolite L in very small crystalline form is prepared by a process in which an alkaline reaction mixture comprising water, a source of silicon (SiO.sub.2), a source of alkali metal (M) (KOH) and a source of aluminium (Al.sub.2 O.sub.3.3H.sub.2 O) or gallium is heated to a temperature of a |
