Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6143911 | Catalyst useful for the polymerization of olefins A catalyst useful for the polymerization of olefins, comprising the following components (A) and (B): Component (A): A transition metallic compound having the following formula [I]: ##STR1## wherein M: a transition metal selected from Ti, Zr and Hf; ... | 11/07/2000 |
| 5484669 | Nonaqueous electrolyte secondary batteries A nonaqueous electrolyte secondary battery having excellent cycle life characteristic, stability in storage at high temperatures and low-temperature characteristic, which is provided with an anode including a carbon material capable of doping and undoping... | 01/16/1996 |
| 5474862 | Nonaqueous electrolyte secondary batteries A nonaqueous electrolyte secondary battery having excellent cycle life characteristic, stability in storage at high temperatures and low-temperature characteristic, which is provided with an anode including a carbon material capable of doping and undoping... | 12/12/1995 |
| 5474962 | Powder catalyst composition and process for polymerizing olefins with the use thereof The present invention provides a powder catalyst composition for producing by gas-phase polymerization olefin polymers having excellent polymer qualities and good particle properties in a high yield. The powder catalyst composition comprises fine particles of ... | 12/12/1995 |
| 5468781 | Polypropylene resin expanded particles There are provided polypropylene resin expanded particles which have a uniform bubble size, can be molded with an exceptionally low steam pressure, and can produce an expanded molded product having a good surface appearance and an excellent energy absorpt... | 11/21/1995 |
| 5449650 | Catalyst components for polymerization of olefins and use thereof Disclosed is a catalyst component for the polymerization of olefins, which is a compound having the following structure: ##STR1## wherein R1 is a hydrocarbon radical having 1 to 10 carbon atoms or a halogen-containing hydrocarbon radical h... | 09/12/1995 |
| 5444125 | Aminated olefin polymers An aminated polymer having excellent adhesion, printability, and compatibility in polymer blends or the like which are obtained by introducing an amino group, into an isotactic -olefin polymer having an olefinic unsaturated bond at its terminus is ... | 08/22/1995 |
| 5441802 | Biaxially-oriented multi-layer films There is provided a biaxially-oriented multi-layer film comprising: a substrate layer comprising as a main component a crystalline propylene polymer; and a layer of a composition laminated on at least one surface of the substrate layer, the composition compris... | 08/15/1995 |
| 5432209 | Propylene resin composition A propylene resin composition containing a propylene-ethylene block copolymer containing (a) a crystalline polypropylene moiety (constituent A) and an ethylene-propylene random copolymer moiety (constituent B), (b) a styrene-ethylene-butylene-styrene bloc... | 07/11/1995 |
| 5426162 | Production of olefin polymers Ziegler polymerization of -olefins is disclosed which is characterized by a solid catalyst component and an organoaluminum component used in the Ziegler catalyst, and also by the temperature used which is 150° to 300° C. The solid catalyst compon... | 06/20/1995 |
| 5424339 | Method for producing an optical material having a high refractive index An optical material with a high refractive index comprising a resin which is obtainable by polymerization and curing of a composition comprising the following components (A), (B) and (C): component (A): a sulfur-containing (meth)acrylic monomer represented by ... | 06/13/1995 |
| 5408016 | Process for producing ethylene polymers A process for producing an ethylene polymer comprising bringing ethylene or ethylene and an -olefin having 3 to 10 carbon atoms into contact with a catalyst comprising the following components (A) and (B): component (A): a solid component for a Ziegler ... | 04/18/1995 |
| 5391618 | Propylene resin compositions A propylene resin composition comprising: 50 to 97% by weight of component (A) which is a propylene polymer having an MFR of 5 to 200 g/10 min, and 50 to 3% by weight of component (B) which is an ethylene--olefin copolymer of an -olefin content o... | 02/21/1995 |
| 5386052 | Process for producing acrylic or methacrylic esters There is provided a process for producing an acrylic or methacrylic ester, comprising the steps of: (a) reacting acrylic or methacrylic acid with an alcohol having 4 or more-carbon atoms in the presence of an acid catalyst to synthesize the corresponding ... | 01/31/1995 |
| 5385993 | Production of olefin polymers Ziegler polymerization of C3 or higher -olefins is disclosed which is characterized by a solid catalyst component and an organoaluminum component used in the Ziegler catalyst, and also by the temperature used which is 150° to 300° C. T... | 01/31/1995 |
| 5385877 | Production of alpha-olefin polymers A catalyst for -olefin polymerization which comprises the following components (A) and (B): component (A), which is a transition metal compound represented by the formula Q(C5 H4-m R1m)(C5 H4-n... | 01/31/1995 |
| 5374677 | Thermoplastic polymer composition A thermoplastic polymer composition comprising: (i) 100 parts by weight of a thermoplastic polymer component which comprises an ethylene-propylene rubber, an ethylene copolymer and a propylene polymer (including an ethylene-propylene block copolymer), and... | 12/20/1994 |
| 5334664 | Method for producing graft-modified copolymers A method for producing a graft-modified copolymer comprising the step of subjecting 100 parts by weight of an unsaturated copolymer comprising an -olefin of 3 to 12 carbon atoms and a cyclic olefin represented by the following formula (I), and 0.1 ... | 08/02/1994 |
| 5332788 | Process for producing graft-modified alpha-olefin copolymer A copolymer of an -olefin with an aromatic diolefin such as divinylbenzene produced by means of Ziegler-Natta polymerization and having a vinylphenyl moiety is subjected to polymerization with an ethylenically unsaturated monomer by means of anion ... | 07/26/1994 |
| 5324784 | Process for producing propylene block copolymer Propylene is copolymerized with ethylene in solventfree polymerization in two steps where a resinous polymer is produced in the first step and a rubbery polymer is produced in the second step over a Ziegler catalyst whose solid catalyst component comprise... | 06/28/1994 |
| 5314962 | ABA type block copolymers An acrylate is polymerized by the photo-decomposition of ##STR1## to make a polymeric intermediate containing dithiocarbamate groups at both its ends, and a hard polymer-forming monomer is polymerized by the photo-decomposition of this dithiocarbamat... | 05/24/1994 |
| 5302653 | Thermoplastic polymer composition A thermoplastic polymer composition comprising: (i) 100 parts by weight of a thermoplastic polymer component which comprises an ethylene-propylene rubber, an ethylene copolymer and a propylene polymer (including an ethylene-propylene block copolymer), and... | 04/12/1994 |
| 5296186 | Process for producing molded products of propylene resin A process for producing a molded product of propylene resin which includes melting and kneading at least a part of the following component (a), adding to the resulting melt the following component (b) or the component (b) and the remainder of the componen... | 03/22/1994 |
| 5294719 | Cyclohexylamine compounds useful as a stabilizer for organic materials Compounds useful as a stabilizer for a variety of organic materials of an intermediate thereof, or as an intermediate of medicines or agricultural chemicals are disclosed, which are cyclohexylamine derivatives represented by the general formula [I]: ... | 03/15/1994 |
| 5276093 | Resin molding Disclosed is a resin molding comprising a molding composed of a resin composition comprising 100 parts by weight of a substrate resin comprising 100 to 30% by weight of at least one propylene polymer selected from the group consisting of propylene/ethylen... | 01/04/1994 |
| 5275993 | Olefin polymerization catalyst An olefin polymerization catalyst which is obtained by contacting the following components (A) and (B): component (A): a product of contacting the following components (A1) and (A2): component (A1): polyolefin powder having spe... | 01/04/1994 |
| 5262487 | Process for producing propylene block copolymer Propylene is copolymerized with ethylene in solvent-free polymerization in two steps where a resinous polymer is produced in the first step and a rubbery polymer is produced in the second step over a Ziegler catalyst whose solid catalyst component has und... | 11/16/1993 |
| 5262503 | Random copolymers and crosslinked products of the same A random copolymer of (a) an -olefin having 3 to 12 carbon atoms, (b) a non-conjugated diene represented by the following formula (1): ##STR1## wherein R1 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R | 11/16/1993 |
| 5260443 | Piperidine derivatives as photostabilizer Disclosed is a piperidine derivatives of a formula: ##STR1## wherein R0 indicates a hydrogen atom or a group R--CO)n where R is an alkyl, alkylene or arylene group capable of having 1 to 4 carboxylic group; R1 indicat... | 11/09/1993 |
| 5258154 | Method for producing seamless tube or use as intermediate image-transfer belt A method for producing a seamless tube for use as an intermediate image-transfer belt, comprising the step of continuously extruding an electrically conductive composition comprising the following components (a), (b) and (c) to form an unstretched seamles... | 11/02/1993 |
| 5256504 | Monaqueous electrolyte secondary batteries Provided is a nonaqueous electrolyte secondary battery excellent in cycle life characteristic, stability in storage at high temperatures and low-temperature characteristic which is provided with an anode comprising a carbon material capable of doping and ... | 10/26/1993 |
| 5252677 | Functionalized olefin polymers A functionalized polymer having excellent adhesion, printability, and compatibility in polymer blends or the like which are obtained by introducing an epoxy group, a hydroxyl group or a sulfonic group into a syndiotactic -olefin polymer having an o... | 10/12/1993 |
| 5231144 | Highly crystalline polypropylene for forming film A highly crystalline polypropylene for forming film which is obtained by subjecting to the molecular weight degradation a propylene homopolymer obtained by the polymerization of propylene over a stereoregulating catalyst and which has: (a) a melt flow rat... | 07/27/1993 |
| 5229463 | Thermoplastic resin compositions having improved strength and method for producing them A thermoplastic resin composition which comprises 100 parts by weight of a copolymer of propylene with at least one particular diene monomer or a mixture of said propylene copolymer with another crystalline propylene polymer, of the content of the diene m... | 07/20/1993 |
| 5225508 | Optical resin obtained from diethylenically unsaturated monomer Disclosed are a diethylenicallyunsaturated monomer represented by the following formula [Ia]: ##STR1## wherein n is an integer of from 1 to 10, and a and b each represent 0 or an integer of from 1 to 4, and an optical resin which is substantially ins... | 07/06/1993 |
| 5225501 | Process for producing a propylene random copolymer A process for producing a propylene random copolymer comprising the repeating units (I)-(III) in quantities of 70-99.9 molar % of (I), 0-15 molar % and 0.1-30 molar %, respectively, which comprises contacting monomers which afford the following repeating ... | 07/06/1993 |
| 5220079 | Process for para-methylolating phenol compounds A process for preparing phenols with high selectivities, comprising reacting a phenol compound and a formaldehyde source with a quaternary ammonium as a counter cation of a phenol anion in the presence of an alcoholic organic solvent.... | 06/15/1993 |
| 5214114 | Process for producing ethylene polymers A process for preparing an ethylene polymer which comprises polymerization of ethylene or ethylene and an -olefin having 3 to 10 carbon atoms over a catalyst comprising the following components (A) and (B): (A) which is a solid component for a Zieg... | 05/25/1993 |
| 5202400 | Process for the production of highly water absorptive polymers A process for producing a highly water absorptive polymer by polymerizing a water-soluble, ethylenically unsaturated monomer in a water-in-oil type of dispersion consisting of the dispersion phase of an aqueous monomer solution comprising the water-solubl... | 04/13/1993 |
| 5196270 | Coated resin molding Disclosed is a coated resin molding comprising a molding composed of a resin composition comprising 100 parts by weight of a substrate resin comprising 100 to 30% by weight of at least one propylene polymer selected from the group consisting of propylene/... | 03/23/1993 |
