Patents by Inventor Frederick C. Schwab
Frederick C. Schwab 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).
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Patent number: 5111933Abstract: The present invention comprises a method of providing a polymeric based compost bag formed with a relatively high percentage of thermal oxidative degradation catalyst, such as a transition metal salt, and, preferably, a process stabilizer. The stabilizer permits the use of high levels of the thermal oxidative degradation catalyst without the risk of premature accelerated degradation during manufacturing and storing. According to the present invention, the compost bags are packaged in containers which are impervious to gases and vapors thus depriving the pro-oxidant of the oxygen necessary to degrade the polymer. The package may also provide a barrier to the loss of stabilizer during storage. Also disclosed is a kit for the disposal of waste.Type: GrantFiled: April 16, 1991Date of Patent: May 12, 1992Assignee: Mobil Oil CorporationInventors: Daniel J. Di Biasi, Frederick C. Schwab
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Patent number: 4983645Abstract: Small effective amounts of camphorquinone incorporated into polyethylene accelerates the degradation of polyethylene on exposure to ultraviolet light.Type: GrantFiled: July 11, 1989Date of Patent: January 8, 1991Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4950516Abstract: Linear polyethylenes are added to crystal, clear transparent polystyrene to accelerate the degradation of polystyrene on exposure to ultraviolet light.Type: GrantFiled: July 11, 1989Date of Patent: August 21, 1990Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4871814Abstract: High molecular weight linear block copolymers containing 5 or more alternating blocks of (A) polymerized styrene or alkyl substituted styrene units, and (B) polymerized conjugated diene units, terminated by (A) units, are prepared by anionic dispersion polymerization to give clear polymers having excellent physical properties.Type: GrantFiled: June 22, 1987Date of Patent: October 3, 1989Assignee: Mobil Oil CorporationInventors: Binnur Z. Gunesin, Paul A. Pindris, Frederick C. Schwab
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Patent number: 4829135Abstract: Styrene or other anionically polymerizable monomer is anionically homopolymerized in a dispersion using a non-solvent, e.g., hexane using three or more stages to obtain spherical microparticles, e.g., 2-5 microns, with a narrow size distribution.Type: GrantFiled: December 29, 1987Date of Patent: May 9, 1989Assignee: Mobil Oil CorporationInventors: Binnur Z. Gunesin, James G. Murray, Frederick C. Schwab, Ronald J. Gustafson
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Patent number: 4714658Abstract: Polymer surfaces such as polyethylene or polypropylene films are corona discharge treated in the conventional manner, and then treated with a reducing agent such as aqueous KI to convert the surface functional groups containing oxygen to predominantly hydroxyl groups.Type: GrantFiled: December 30, 1985Date of Patent: December 22, 1987Assignee: Mobil Oil CorporationInventors: Marjory A. Kadash, Frederick C. Schwab
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Patent number: 4653585Abstract: The permeability of a subterranean oil-bearing formation is controlled by the injection of an aqueous solution of a block copolymer containing polar and non-polar segments, with the polar segments generally making up at least 50 percent, usually 60 to 99 percent, of the copolymer. The polar segments are derived from an alkylene oxide and the non-polar segments from styrene or an alkyl styrene either by itself or with a diene. The copolymers may be cross-linked with polyvalent metal ions such as chromium and are normally used in solution concentrations of 1000-10,000 ppm. Diene units in the non-polar segment may be hydrogenated to reduce residual unsaturation and solubilizing functional groups such as sulfonate or hydroxyl may be present to improve water solubility.Type: GrantFiled: January 31, 1985Date of Patent: March 31, 1987Assignee: Mobil Oil CorporationInventors: Harold S. Chung, Krishnaswamy Sampath, Frederick C. Schwab
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Patent number: 4535129Abstract: High impact graft copolymers made from a rubber backbone and having multiple branches of polymeric methyl ethenyl benzene grafted to the backbone are disclosed in which the methyl ethenyl benzene comprises an isomer mixture high in the para-isomer, e.g., at least 85 weight percent.Type: GrantFiled: February 12, 1982Date of Patent: August 13, 1985Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4446180Abstract: An adhesive composition comprising a combination of a styrene-butadiene block copolymer, a cyclopentadiene-styrene resin and a random terpolymer of 1,3-pentadiene, a monocyclic terpene, and alpha methylstyrene. A flexible film laminate and product pouchor tube therefrom comprising two or more polymer film layers adhesively bonded together by means of a layer of the defined adhesive.Type: GrantFiled: August 4, 1983Date of Patent: May 1, 1984Assignee: Mobil Oil Corp.Inventor: Frederick C. Schwab
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Patent number: 4431773Abstract: An adhesive composition comprising a combination of a styrene-butadiene block copolymer, a cyclopentadiene-styrene resin and a random terpolymer of 1,3-pentadiene, a monocyclic terpene, and alpha methylstyrene. A flexible film laminate and product pouchor tube therefrom comprising two or more polymer film layers adhesively bonded together by means of a layer of the defined adhesive.Type: GrantFiled: June 8, 1982Date of Patent: February 14, 1984Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4360551Abstract: A flexible film laminate especially adapted for use in the manufacture of a retortable pouch for the packaging of food is disclosed which comprises:(a) a first layer of heat-sealable polyolefin;(b) a second layer of previously metallized thermoplastic polymer bonded to said first layer; and,(c) an adhesive bonding the first layer to the metallized surface of the second layer, said adhesive being a maleic acid anhydride adduct of ethylene-propylene copolymer.Type: GrantFiled: June 19, 1981Date of Patent: November 23, 1982Assignee: Mobil Oil CorporationInventors: John P. Guarino, Frederick C. Schwab
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Patent number: 4260694Abstract: This invention provides an A-B-A p-methylstyrene-conjugated diene-p-methylstyrene block copolymer containing, by weight of the block copolymer, about 10-40% p-methylstyrene and about 90-60% conjugated diene.Type: GrantFiled: November 29, 1979Date of Patent: April 7, 1981Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4176144Abstract: A mixture of isomeric methyl ethenyl benzenes having a particular distribution of isomers is useful for preparing polymers with advantageous properties. The isomeric mixture may be polymerized with other monomers to produce copolymers.Type: GrantFiled: January 19, 1978Date of Patent: November 27, 1979Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4120801Abstract: This specification discloses a waterflooding process for producing oil from an oil-containing subterranean formation that is penetrated by an injection well and a production well. An aqueous solution of a water soluble copolymer having segments formed of blocks of an aromatic monomer and blocks of an olefinic monomer chemically modified to have an anionic function on the olefinic segments is injected into the formation to improve the recovery of oil therefrom.Type: GrantFiled: May 23, 1977Date of Patent: October 17, 1978Assignee: Mobil Oil CorporationInventors: Catherine S. H. Chen, Frederick C. Schwab, Edward W. Sheppard
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Patent number: 4110232Abstract: This specification discloses a waterflooding process for producing oil from an oil-containing subterranean formation penetrated by an injection well and a production well. An aqueous solution of a copolymer formed of hydrophobic olefinic segments and cationic aromatic hydrophilic segments is injected into and driven through the formation in the production of oil therefrom.Type: GrantFiled: April 15, 1977Date of Patent: August 29, 1978Assignee: Mobil Oil CorporationInventors: Frederick C. Schwab, Edward W. Sheppard, Catherine S. H. Chen
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Patent number: 4021359Abstract: Novel compounds comprising water-soluble salts of partial esters of maleic anhydride and polyhydric alcohols containing at least three hydroxy groups sequester and retard the precipitation of Ca.sup.+.sup.+ ions, and function as detergent builders for washing and cleaning compositions in aqueous solutions thereof.Type: GrantFiled: October 11, 1973Date of Patent: May 3, 1977Assignee: Mobil Oil CorporationInventor: Frederick C. Schwab
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Patent number: 4017476Abstract: Organic pigments for thermoplastic polymers are prepared by the anionic initiated slurry polymerization of styrene and 0.5-15 weight percent divinylbenzene based upon styrene in the presence of a block polymer dispersant, using, as the anionic initiator, an alkali metal-bearing compound at 20.degree. C. to 120.degree. C. to produce a finely divided solid cross-linked polymer and terminating the polymerization by reaction of the polymer particles with an organic dye, an organic dye precursor, or with a reactive coupling agent followed by reaction with an organic dye.Type: GrantFiled: March 15, 1974Date of Patent: April 12, 1977Assignee: Mobil Oil CorporationInventors: James G. Murray, Frederick C. Schwab
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Patent number: 3972963Abstract: Organic reinforcing fillers for rubber are prepared by the anionic initiated slurry polymerization of styrene and divinylbenzene in the presence of a block polymer dispersant. The polymerization reaction may be carried out using, as the anionic initiator, an alkali metal-bearing compound capable of initiating polymerization of styrene without imparting to the polymerization product groups reactive with rubber in a rubber cure in which case the polymerization is terminated by reaction of the polymer particles with a terminating agent that provides in the polymer groups reactive with rubber in a normal rubber cure; or the polymerization reaction can be carried out using, as the initiator, an alkali metal-bearing unsaturated polymer that in itself imparts to the polymer groups reactive with rubber in a normal rubber cure.Type: GrantFiled: July 18, 1975Date of Patent: August 3, 1976Assignee: Mobil Oil CorporationInventors: Frederick C. Schwab, James G. Murray
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Patent number: 3954915Abstract: Novel block copolymers containing at least two segments, in which segment A is either a polymerized alkyl-substituted styrene, the alkyl group having at least 3 carbon atoms, or a hydrogenated block of random butadiene-styrene copolymer and from 1 to about 50% by weight of segment B being an alkylene oxide or sulfide copolymerized with the first segment as an AB or BAB copolymer, perform as multifunctional additives in industrial organic compositions, both hydrocarbon fluids, such as petroleum-derived, and non-hydrocarbon, or synthetic fluids, providing such utility as detergency and viscosity index improvement. These copolymers have molecular weights in the range of from about 1,000 to 300,000. The copolymers are particularly useful in lubricating oils, greases and fuels, especially cross-graded lubricants, Diesel oils, gasoline and fuel oils. Copolymers capped with metal diisocyanate have excellent thermal and oxidative stability.Type: GrantFiled: June 24, 1974Date of Patent: May 4, 1976Assignee: Mobil Oil CorporationInventors: Frederick C. Schwab, Israel J. Heilweil