Patents Assigned to Chemplex Company
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Patent number: 4634744Abstract: An improved method of terminating ethylene polymerization and interpolymerization reactions by deactivating the Ziegler-type catalyst used in the reaction comprises the step of injecting a selected deactivating agent into the molten polymer solution in the polymerization reactor prior to degassing of the polymer solution.The deactivating agent is selected from the group consisting of:(a) natural hydrotalcite minerals and synthetic hydrotalcite-like materials;(b) Group IIIA metal salts of monocarboxylic acids;(c) alkali metal and alkaline earth metal salts of alkarylsulfonic acids;(d) alkali metal and alkaline earth metal salts of alkyl and alkaryl sulfuric acids;(e) organophosphites of a formula selected from the group consisting of (RO).sub.3 P and (RO).sub.2 POH where R is a hydrocarbon group containing 1 to 22 carbon atoms, inclusive;(f) ethoxylated hydrocarbylamines of the formula R'.sub.3-n N[(OCH.sub.2 CH.sub.2).sub.m OH].sub.Type: GrantFiled: January 9, 1985Date of Patent: January 6, 1987Assignee: Chemplex CompanyInventors: Yu-Tang Hwang, Lloyd Pebsworth, Robert A. Dombro, Raymond E. Hoff
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Patent number: 4567243Abstract: A catalyst and method in which the catalyst is active with a cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting together one or more of a specific class of organic silicon compounds, a porous support or a silicon compound treated porous support, a Group IIA organometallic compound, and a Group IVB, VB transition metal compound or mixture thereof.Type: GrantFiled: October 29, 1984Date of Patent: January 28, 1986Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Yu-Tang Hwang, Robert A. Dombro
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Patent number: 4558105Abstract: Ethylene is copolymerized with one or more 1-olefins under conditions of high temperature and pressure in the presence of an inert gaseous ratio modifier. As a result, liquid condensation which contributes to equipment damage and unsafe operation is avoided, and copolymer product density is readily controllable.Type: GrantFiled: December 7, 1983Date of Patent: December 10, 1985Assignee: Chemplex CompanyInventors: Wayne L. Carrick, R. Sven Solvik, William Kirch
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Patent number: 4544646Abstract: An olefin polymerization and interpolymerization catalyst composition prepared by reacting at least one novel magnesium silylamide compound with a compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the fourth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.Type: GrantFiled: March 16, 1984Date of Patent: October 1, 1985Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Raymond E. Hoff
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Patent number: 4537836Abstract: Composite structures incorporating resin blends that are strong adhesives to various substrates and especially to polar substrates. The blends comprise (a) a graft copolymer of a polyethylene backbone grafted with at least one grafting monomer comprising one or more polymerizable ethylenically unsaturated carboxylic acids or acid derivatives such as acid anhydrides, acid esters, salts, amides, imides and the like, (b) a LDPE, a linear low density polyethylene, or an ethylene-unsaturated ester copolymer, and (c) a poly (.alpha.-olefin).Type: GrantFiled: December 4, 1984Date of Patent: August 27, 1985Assignee: Chemplex CompanyInventors: Ashok M. Adur, Seymour Schmukler, John Maconis, Jr., Mitsuzo Shida
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Patent number: 4530913Abstract: A catalyst and method in which the catalyst is used with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting a monofunctional organic silicon compound with silica, alumina, or the like followed by reacting the product of this reaction with a Group IIA organometallic compound or complex, then reacting this product with a halide or alkoxide of a metal of Group IVB or Group VB or mixtures thereof. If desired, the halide or alkoxide may be first reacted with the silicon compound reaction product before the reacting with the organometallic compound or complex.Type: GrantFiled: January 16, 1980Date of Patent: July 23, 1985Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Raymond E. Hoff
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Patent number: 4530912Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain multifunctional organic silicon compounds (silanes) with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with a halide or alkoxide of a Group IVB or VB transition metal such as titanium, vanadium, zirconium or mixtures of these and finally reacting this product with a Group IIA organometallic compound or compounds such as magnesium and calcium. The Group IIA organometallic compound can also be added before these transition metal compounds.Type: GrantFiled: June 4, 1981Date of Patent: July 23, 1985Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Raymond E. Hoff
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Patent number: 4524141Abstract: A catalyst and method in which the catalyst is active with a cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting together one or more of a specific class of organic silicon compounds, a porous support or a silicon compound treated porous support, a Group IIA organometallic compound, and a Group IVB, VB transition metal compound or mixture thereof.Type: GrantFiled: April 21, 1983Date of Patent: June 18, 1985Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Yu-Tang Hwang, Robert A. Dombro
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Patent number: 4510299Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and interpolymerization of 1-olefins. The catalyst is prepared by (1) reacting a mono- or polyfunctional phosphorus compound with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the phosphorus compound reacts with these surface hydroxyl groups, followed by (2) reacting the product of this with a Group IIa (e.g. Mg) compound and further (3) reacting this product with a Group IVB, VB or VIB (e.g. Ti) compound. Alternatively, (1) is reacted with (3) and then with (2).Type: GrantFiled: July 29, 1983Date of Patent: April 9, 1985Assignee: Chemplex CompanyInventors: Michael W. Lynch, Thomas J. Pullukat
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Patent number: 4499198Abstract: An olefin polymerization and interpolymerization catalyst composition prepared by reacting novel magnesium silylamide compounds with at least one compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the fourth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.Type: GrantFiled: October 7, 1982Date of Patent: February 12, 1985Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Raymond E. Hoff, Michael W. Lynch
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Patent number: 4490514Abstract: A method for polymerization of ethylene and copolymerization of ethylene with other 1-olefins at high temperatures in the presence of a transition metal catalyst and a tetra alkyl-.mu.-oxodialuminum compound.Type: GrantFiled: August 16, 1983Date of Patent: December 25, 1984Assignee: Chemplex CompanyInventors: Raymond E. Hoff, Thomas Pullukat
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Patent number: 4487885Abstract: Resin blends that are strong adhesives to various substrates and especially to polar substrates. These blends comprise (a) a graft copolymer of a polyethylene backbone grafted with at least one grafting monomer comprising one or more polymerizable ethylenically unsaturated carboxylic acids or acid derivatives such as acid anhydrides, acid esters, salts, amides, imides and the like, (b) a LDPE, a linear low density polyethylene, or an ethylene-unsaturated ester copolymer and (c) a poly (.alpha.-olefin).Type: GrantFiled: July 1, 1983Date of Patent: December 11, 1984Assignee: Chemplex CompanyInventors: Ashok M. Adur, Seymour Schmukler, John Machonis, Jr., Mitsuzo Shida
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Patent number: 4486469Abstract: Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more homopolymers of ethylene, copolymers of ethylene and alpha-olefin, ethylene-ester copolymers and one or more elastomers such as homopolymers of isobutylene, copolymers of isobutylene with isoprene, chlorinated copolymers of isobutylene and isoprene, homopolymers of isoprene, copolymers of butadiene and styrene, block copolymers of dienes and styrene where the diene is butadiene or isoprene, homopolymers of butadiene, homopolymers of chloroprene, and copolymers of acrylonitrile and butadiene.Type: GrantFiled: October 7, 1983Date of Patent: December 4, 1984Assignee: Chemplex CompanyInventors: John Machonis, Jr., Seymour Schmukler, Robert J. Zeitlin, Mitsuzo Shida
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Patent number: 4481262Abstract: Composite structures comprising one or more substrates and an adhesive blend adhered thereto. The blend is strongly adhesive to various substrates and especially to various polar substrates. The blend comprises a blend of a graft copolymer of a linear low density polyethylene backbone grafted with at least one grafting monomer which is one or more polymerizable ethylenically unsaturated carboxylic acids or anhydrides thereof, blended with a polyolefin blending resin. The disclosure also includes methods of adhering the blend to one or more substrates.Type: GrantFiled: February 1, 1984Date of Patent: November 6, 1984Assignee: Chemplex CompanyInventors: Mitsuzo Shida, Robert Zeitlin, John Machonis, Jr., Ashok M. Adur
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Patent number: 4478988Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain organic silicon compounds with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with an organomagnesium compound and further reacting this product with an alcohol or reacting the product with an alcohol and then with an organomagnesium compound and then with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.Type: GrantFiled: May 24, 1982Date of Patent: October 23, 1984Assignee: Chemplex CompanyInventors: Thomas J. Pullukat, Raymond E. Hoff
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Patent number: 4477532Abstract: Composite structures comprising one or more substrates and an adhesive blend comprising blends of a non-elastomeric graft copolymer of a non-polar ethylene homopolymer or copolymer backbone grafted with at least one grafting monomer comprising one or more of polymerizable ethylenically unsaturated carboxylic acids or the anhydrides of such acids blended with an elastomer-free blending resin that is a mixture of one or more linear low density polyethylenes and one or more polypropylenes.Type: GrantFiled: May 12, 1983Date of Patent: October 16, 1984Assignee: Chemplex CompanyInventors: Seymour Schmukler, John Machonis, Jr., Mitsuzo Shida
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Patent number: 4476243Abstract: Catalysts prepared from large pore volume zirconia-silica catalyst supports and a method of polymerizing olefins comprising contacting an olefin or mixture of olefins with the catalysts. The supports are prepared by reacting a zirconium compound of the formula M.sub.4 Zr(C.sub.2 O.sub.4).sub.4.nH.sub.2 O, where M is an alkali metal or ammonium ion and n equals 0 to 10, with a silicon compound of the type A.sub.2 SiO.sub.3, where A is an alkali metal, in an aqueous solution at a pH equal to at least 11, then adding an acidic solution to a pH of about 5-9 to produce a hydrocogel. The hydrocogel is then aged and washed free of soluble by-products with an aqueous liquid. Water is removed from the washed hydrocogel by azeotropic distillation or by washing with a water miscible solvent, then residual water is removed by chemically reacting this water with a ketal of the formula RC(OR).sub.2 R where R is the same or different and is an alkyl group of 1-5 carbon atoms, and then calcining the resulting xerocogel.Type: GrantFiled: June 7, 1983Date of Patent: October 9, 1984Assignee: Chemplex CompanyInventor: Robert A. Dombro
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Patent number: 4472555Abstract: Adhesive blends comprising blends of a non-elastomeric graft copolymer of a non-polar ethylene homopolymer or copolymer backbone grafted with at least one grafting monomer comprising one or more of polymerizable ethylenically unsaturated carboxylic acids or the anhydrides of such acids blended with an elastomer-free blending resin that is a mixture of one or more linear low density polyethylenes and one or more polypropylenes. These blends provide excellent adhesion to both polypropylene and polar substrates.Type: GrantFiled: May 12, 1983Date of Patent: September 18, 1984Assignee: Chemplex CompanyInventors: Seymour Schmukler, John Machonis, Jr., Mitsuzo Shida
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Patent number: 4460745Abstract: Composites of matter having properties that make them strong adhesives to various substrates, especially to polar substrates. These adhesive blends comprise medium density polyethylene, linear low density polyethylene and a high density polyethylene grafted with or containing in its main chain unsaturated or saturated carboxylic acids or derivatives. The disclosure also includes composite structures having one or more substrates with the adhesive blend adhered thereto and to methods of making these composites.Type: GrantFiled: April 26, 1982Date of Patent: July 17, 1984Assignee: Chemplex CompanyInventors: Ashok M. Adur, Seymour Schmukler, John Machonis, Jr., Mitsuzo Shida
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Patent number: RE31761Abstract: A method of preparing large pore volume zirconia-silica catalyst supports, the resulting supports and a method of polymerizing olefins comprising contacting an olefin or mixture of olefins with a catalyst prepared with these supports. The supports are prepared by reacting a zirconium compound of the formula M.sub.4 Zr(C.sub.2 O.sub.4).sub.4.nH.sub.2 O, where M is an alkali metal or ammonium ion and n equals 0 to 10, with a silicon compound of the type A.sub.2 SiO.sub.3, where A is an alkali metal, in an aqueous solution at a pH equal to at least 11, then adding an acidic solution to a pH of about 5-9 to produce a hydrocogel. The hydrocogel is then aged and washed free of soluble by-products first with water, then with aqueous ammonium nitrate and again with water. The water is removed from the washed hydrocogel by azeotropic distillation or by washing with a water miscible solvent and then calcining the resulting xerocogel.Type: GrantFiled: January 17, 1983Date of Patent: December 11, 1984Assignee: Chemplex CompanyInventors: Robert A. Dombro, William Kirch