| Patent Number |
Title Of Patent |
Date Issued |
| 6867264 |
Process for removing residual silicon species from hydrocarbon solvents |
March 15, 2005 |
| Removing silicon species from hydrocarbon solvents such as cyclohexane. The process comprises contacting the hydrocarbon solvent with sulfuric acid in an amount sufficient to phase separate the silicon species and removing at least 20% by weight of the residual silicon species from the h |
| 6846535 |
Kink resistant medical tubes |
January 25, 2005 |
| Kink resistant medical tube is manufactured from a polymer composition comprising: a) a random polypropylene copolymer; and b) a block copolymer comprising at least two vinyl aromatic polymer blocks and at least one hydrogenated conjugated diene polymer block, wherein the hydrogena |
| 6825274 |
Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress r |
November 30, 2004 |
| The present invention provides melt processable, bleach resistant durable fibers having an elastic recovery above 50% after extension to 160% elongation and a stress relaxation below 50% after extension to 150% for 30 minuets which are formed from a soft polyurethane elastomer. This |
| 6800725 |
Process for removing hydrogenation catalyst residue from hydrogenated polymers |
October 5, 2004 |
| This invention relates to a process for removing hydrogenation catalyst residue from hydrogenated polymers comprising:(I) treating a polymer cement comprising an unsaturated polymer in an inert water-immiscible liquid with a hydrogen source in the presence of a hydrogenation catalyst;(II |
| 6794441 |
Die cuttable label adhesive formulation |
September 21, 2004 |
| This invention is an adhesive formulation for die cuttable labels which comprises: (a) 100 parts by weight of a styrene-isoprene-styrene block copolymer having an overall number average molecular weight of 50,000 to 450,000, a polystyrene content of 10 to 25 percent weight, and a coup |
| 6790920 |
Process for removal of silicon compounds from solvents by selective absorption |
September 14, 2004 |
| Removing silicon species from hydrocarbon solvents such as cyclohexane by flowing the hydrocarbon solvent through a selective adsorbent selected from the group consisting of aluminas, silicon-aluminas, ion exchange resins, zeolite Y, and combinations thereof. |
| 6759454 |
Polymer modified bitumen compositions |
July 6, 2004 |
| The present invention is a polymer modified bituminous composition having improved phase stability, heat aging and viscosity characteristics. The bituminous compositions are blends comprising bitumen and from about 0.5 to about 25% of a novel anionic block copolymer where one of the bloc |
| 6730745 |
Process for coupling styrenic block copolymers |
May 4, 2004 |
| Disclosed is a process for coupling styrenic block copolymers comprising admixing vinyl cyclohexene dioxide with a living block copolymer comprising at least one block of polymerized vinyl aromatic hydrocarbon monomers and at least one block of polymerized conjugated diene monomers, |
| 6730737 |
Releasable pressure sensitive adhesive composition |
May 4, 2004 |
| A releasable pressure sensitive adhesive composition comprising: (a) a block copolymer comprising at least one poly(monovinyl aromatic hydrocarbon) block and at least one poly(conjugated diene) block and having a vinyl content of at least 3% by weight, (b) a tackifying resin, and (c |
| 6703449 |
Block copolymers containing both polystyrene and low vinyl content polydiene hard blocks |
March 9, 2004 |
| The present invention provides block copolymers which have reduced solvent sensitivity and which overcome the foregoing disadvantages. In one embodiment of the present invention, there is provided an asymmetric block copolymer of the structure A-B-C-A wherein each A block is formed of a |
| 6699941 |
Block copolymer |
March 2, 2004 |
| The present invention relates to selectively hydrogenated block copolymers where one of the blocks is a random copolymer of a mono-alkenyl arene monomer, such as styrene, and a 1,3-cyclodiene monomer, such as 1,3-cyclohexadiene, and one of the other blocks is a hydrogenated polymer o |
| 6657000 |
Hot melt pressure sensitive positioning adhesive (III) |
December 2, 2003 |
| The present invention is a hot melt pressure sensitive positioning adhesive for use with an absorbent article. The adhesive comprises: (a) from 5 to less than 15 percent by weight of a blend of (i) a hydrogenated styrene-(butadiene or isoprene)-styrene block copolymer having a polystyr |
| 6653408 |
Compositions comprising a functionalized block copolymer crosslinked with aluminum acetylacetona |
November 25, 2003 |
| In one embodiment, this invention provides a composition comprising a functionalized block copolymer crosslinked with acetylacetonate. The crosslinked block copolymer has improved solvent resistance and improved cohesive strength at high temperatures. The crosslinked block copolymer |
| 6541553 |
Formulation for strippable adhesive and coating films and high performance adhesive |
April 1, 2003 |
| This invention relates to curable strippable adhesive and coating films, and also to improved high performance pressure sensitive adhesives. The adhesive comprises: (a) from 10 to 90 percent by weight of a crosslinkable epoxidized diene polymer, (b) from 0 to 70 percent by weight o |
| 6537661 |
Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress r |
March 25, 2003 |
| The present invention provides melt processable, bleach resistant durable fibers having an elastic recovery above 50% after extension to 160% elongation and a stress relaxation below 50% after extension to 150% for 30 minutes which are formed from a soft polyurethane elastomer. This |
| 6534617 |
Extruder process for making thermoplastic polyurethanes |
March 18, 2003 |
| A method of manufacturing a thermoplastic polyurethane having a tensile strength of greater than 20 MPa is described, the method using a co-rotating reaction extruder to react the following: (i) an isocyanate having two isocyanate groups per molecule; (ii) a polydiene diol having from |
| 6525142 |
Monohydroxylated diene polymers and epoxidized derivatives thereof |
February 25, 2003 |
| The invention herein relates to unsaturated monohydroxylated polydiene polymers which are comprised of at least two polymerizable ethenically unsaturated hydrocarbon monomers wherein at least one is a diene monomer which yields unsaturation suitable for epoxidation. The invention also |
| 6508875 |
Bituminous composition |
January 21, 2003 |
| The present invention provides a bituminous composition which comprises a bitumen component, less than 15% by weight of a block copolymer composition, based on total weight of block copolymer composition and bitumen component, and more than 40% by weight of a filler, based on total w |
| 6506541 |
Photo-curable polymer composition and flexographic printing plates containing the same |
January 14, 2003 |
| The present invention relates to a photo-curable polymer composition comprising: a) a first block copolymer comprising at least two blocks A of polymerised mono-vinyl aromatic monomer, and at least one block B of polymerised conjugated diene monomer, wherein the total polymerised mon |
| 6492469 |
Increased throughput in the manufacture of anionic polymers by reduction in polymers by reductio |
December 10, 2002 |
| The present invention is an improvement upon the known method of anionically polymerizing monomers by contacting the monomers with an anionic polymerization initiator which is an organo-substituted alkali metal compound. The improvement comprises decreasing the viscosity of the polym |
| 6492466 |
Increased throughput in the manufacture of anionic polymers by reduction in polymer cement visco |
December 10, 2002 |
| The present invention is an improvement upon the known method of anionically polymerizing monomers by contacting the monomers with an anionic polymerization initiator which is an organo-substituted alkali metal compound. The improvement comprises decreasing the viscosity of the polym |
| 6465557 |
Hot melt pressure sensitive positioning adhesive |
October 15, 2002 |
| The present invention is a hot melt pressure sensitive positioning adhesive for use with an absorbent article. The adhesive comprises: (a) from greater than 6 to less than 15 percent by weight of the total of (a), (b) and (c) of a hydrogenated styrene-(butadiene and/or isoprene)-styre |
| 6462143 |
Gel-free process for making functionalized anionically polymerized polymers |
October 8, 2002 |
| This invention relates to a gel-free process for making functionalized polymers. When multi-alkali metal initiators are used to make these polymers anionically, the process comprises anionically polymerizing at least one monomer with a multi-alkali metal initiator in a hydrocarbon so |
| 6458300 |
Conversion of sticky elastomeric polymer crumb into pellets without polymer degradation |
October 1, 2002 |
| A process for pelletizing elastomeric anionically polymerized polymers which comprises subjecting the polymer to solid state extrusion in a single screw extruder with a length to diameter ratio of 10:1 or less wherein the barrel of the extruder has longitudinal grooves and transversa |
| 6455651 |
Uniform initiation of anionic polymerization using organo-substituted alkali metal initiators |
September 24, 2002 |
| The present invention is an improvement in a method of anionically polymerizing monomers by contacting them with an anionic polymerization initiator which is an organo-substituted alkali metal compound in the presence of low amounts of an accelerator/promoter and/or a highly active m |
| 6455627 |
Hot melt pressure sensitive positions adhesive (II) |
September 24, 2002 |
| The present invention is a hot melt pressure sensitive positioning adhesive for use with an absorbent article. The adhesive comprises: (a) from 6 to less than 15 percent by weight, of the total of (a), (b) and (c) of a blend of (i) from 40 to 95% by weight of a hydrogenated styrene-(bu |
| 6451913 |
Radial hydrogenated block copolymers showing one phase melt behavior |
September 17, 2002 |
| Radial block copolymers that exhibit one phase melt behavior at a temperature below the degradation temperature of the radial block copolymer. The radial block copolymers have a plurality of arms, wherein each arm has a numerical average molecular weight of from about 5,000 to about |
| 6451865 |
Foam composition comprising oil, thermoplastic elastomer and expandable particles |
September 17, 2002 |
| A foam and pre-foam production process, and a foam and a pre-foam is described. The process comprises the steps of: forming a pre-foam composition comprising oil(s), thermoplastic elastomer(s) and heat expandable thermoplastic particles encapsulating heat expandable gas or liquified |
| 6420490 |
Telechelic polymers are produced by ozonation degradation of diene polymers |
July 16, 2002 |
| A low molecular weight, telechelic polymer containing polar internal functionality is produced by (a) treating a copolymer of a polar alpha olefin and a conjugated diene with ozone to degrade the copolymer and form polymer segments which have aldehyde or ketone groups on the chain ends, |
| 6414042 |
Production of porous diene polymer pellets by mechanical drying |
July 2, 2002 |
| A process for finishing a hydrogenated diene polymer by producing porous pellets from a water slurry of the hydrogenated block copolymer. The process comprises adjusting the water content of the slurry to from 9 to 16 percent by weight, moving the slurry through a mechanical two-stage |
| 6391981 |
Increased throughput in the manufacture of anionic polymers by reduction in polymer cement visco |
May 21, 2002 |
| The present invention is an improvement upon the known method of anionically polymerizing monomers by contacting the monomers with an anionic polymerization initiator which is an organo-substituted alkali metal compound. The improvement comprises decreasing the viscosity of the polym |
| 6331589 |
Organic polymers containing polyethylene or polystyrene polysiloxane diblock copolymers as melt |
December 18, 2001 |
| The present invention provides organic polymers and compounds containing such polymers which have enhanced melt processing characteristics. A composition of the present invention includes at least one organic polymer and from 0.1 percent by weight to 5 percent by weight of a diblock |
| 6326127 |
Photo-curable polymer composition and flexographic printing plates containing the same |
December 4, 2001 |
| The present invention relates to a photo-curable polymer composition comprising(a) a first block copolymer comprising at least two blocks A of polymerised monovinyl aromatic monomer, at least one internal block B of polymerised conjugated diene monomer, and at least one tapered or random |
| 6323299 |
Method for producing mixed polyol thermoplastic polyurethane compositions |
November 27, 2001 |
| A process for preparing a thermoplastic polyurethane resin from a polydiene having terminal functional groups selected from the group consisting of hydroxy, amine, and carboxylic acid, at least one polymeric diol selected from the group consisting of polyester polyols, polyether polyols, |
| 6316112 |
Fluoro-functional polyethylene-polysiloxane block copolymers |
November 13, 2001 |
| This invention relates to anionically polymerized block copolymers comprised of at least one block of polyethylene and at least one block of a polymerized cyclic siloxane monomer wherein said cyclic siloxane monomer contains at least one functional group containing a fluorocarbon sub |
