Patent application number | Description | Published |
20080214767 | Isotactic Polypropylene Produced From Supercritical Polymerization Process - This invention relates to an isotactic propylene homopolymer having:
| 09-04-2008 |
20080306215 | Functionalization of olefin/diene copolymers - A process is described for functionalizing a copolymer comprising units derived from at least one α-olefin and units derived from at least one diene, which copolymer contains at least one double bond. The process comprises reacting the copolymer with at least one functionalizing agent to introduce polar pendant oxygen-containing functional groups onto the copolymer. | 12-11-2008 |
20090005279 | Polyalpha-Olefin Compositions and Processes to Produce the Same - This invention relates to a polyalpha-olefin (and hydrogenated analogs thereof) comprising more than 50 mole % of one or more C5 to C24 alpha-olefin monomers where the polyalpha-olefin has: a) 40 mole % or more of mm triads, b) a Bromine number of Y or greater, where Y is equal to 89.92*(V)′°5863, where V is the Kinematic Viscosity of the polyalpha-olefin measured at 100° C. in cSt, and c) 1,2 disubstituted olefins present at 7 mole % or more, preferably having Z mole % or more of units represented by the formula: where j, k and m are each, independently, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, or 22, n is an integer from 1 to 350, and where Z=8.420*Log(V)−4.048, where V is the kinematic viscosity of the polyalpha-olefin measured at 1000 C in cSt This invention also relates to process to produce such polyalpha-olefins. | 01-01-2009 |
20090163643 | Polypropylene ethylene-propylene copolymer blends and in-line process t produce them - Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing them. The blend of polypropylene and ethylene-propylene copolymer may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process. The in-line process for producing the blend includes providing two or more parallel reactor trains and a separator for product blending and product-feed separation; wherein the two or more reactor trains operate under fluid phase bulk homogeneous conditions and at least one of the trains operates under supercritical conditions. | 06-25-2009 |
20090163678 | Bulk homogeneous polymerization process for ethylene propylene copolymers - Provided are bulk homogeneous polymerization processes for producing ethylene propylene random copolymers. The process includes contacting in a reactor or in a series of reactors propylene monomer, ethylene comonomer with one or more catalyst systems and optional solvent (present at less than 40 wt %), wherein the reactor train is at a temperature of between 65° C. and 180° C. and at a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa, and wherein the polymerization system for the reactor train is in its dense fluid state to form a polymer reactor effluent including a homogeneous fluid phase polymer-monomer mixture in the reactor train; and wherein the resultant copolymer product comprises between 10 wt % and 20 wt % randomly distributed ethylene and the concentration of total region defects in the continuous propylene segments of the random EP copolymer is between 40 and 150% greater than in a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process. | 06-25-2009 |
20090221460 | Green lubricant compositions - The present invention is directed to green lubricant compositions comprising a base oil and an effective amount of premixed additives that improve wear protection and reduce phosphorus emissions. | 09-03-2009 |
20100113718 | Super-Solution Homogeneous Propylene Polymerization and Polypropylenes Made Therefrom - This invention relates to processes for producing an isotactic propylene homopolymer having more than 15 and less than 100 regio defects (sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations) per 10,000 propylene units; a weight-averaged molecular weight of 35000 g/mol or more; a peak melting temperature of greater than 149° C.; an mmmm pentad fraction of 0.85 or more; a heat of fusion of 80 J/g or more; and a peak melting temperature minus peak crystallization temperature (Tmp−Tcp) of less than or equal to (0.907 times Tmp) minus 99.64 (Tmp−Tcp<(0.907×Tmp)−99.64), as measured in ° C. on the homopolymer having 0 wt % nucleating agent. | 05-06-2010 |
20100292424 | Lubricants from Mixed Alpha-Olefin Feeds - This invention discloses an improved process which employs mixed alpha-olefins as feed over activated metallocene catalyst systems to provide essentially random liquid polymers particularly useful in lubricant components or as functional fluids. | 11-18-2010 |
20110160502 | Process for Producing Novel Synthetic Basestocks - This disclosure relates to a liquid syndiotactic polyalphaolefin, sPAO, comprising one or more C | 06-30-2011 |
20120225998 | POLYPROPYLENE ETHYLENE-PROPYLENE COPOLYMER BLENDS AND IN-LINE PROCESS TO PRODUCE THEM - Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing. The blends may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process. | 09-06-2012 |
20130131410 | Process for Producing Novel Synthetic Basestocks - This disclosure relates to a liquid syndiotactic polyalphaolefin, sPAO, comprising one or more C | 05-23-2013 |
20140378720 | Processes to Produce Polyalpha-Olefin Compositions - A process to produce polyalpha-olefins includes contacting a feed stream of at least one alpha-olefin monomer having 4 to 25 carbon atoms with a metallocene catalyst compound and an activator, and optionally an alkyl-aluminum compound, under polymerizations conditions in a reactor. The alpha-olefin monomer is present at 10% volume or more in the reactor and the feed stream includes less than 600 ppm of heteroatom containing compounds. The process further includes obtaining a polyalpha-olefin with at least 50 mole % C5 to C24 alpha-olefin monomer and kinematic viscosity at 100° C. of 5000 cSt or less. | 12-25-2014 |