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7635725 |
Crosslinked polymers
Highly crystalline, oxidation resistant crosslinked polymeric materials such as crosslinked ultrahigh molecular weight polyethylenes having high wear resistance, enhanced stiffness, enhanced...
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7632894 |
Process for cross-linking thermoplastic polyolefin elastomer compositions
A process for cross-linking an elastomer-containing thermoplastic polyolefin composition comprising the steps of preparing a masterbatch by mixing and/or masticating an elastomeric polyolefin with...
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7622532 |
Synthesis of radioactive materials and compositions of same
The present invention relates generally to synthesis of radioactive material, such as a tritiated polymer, and an apparatus for generating electrical current from the nuclear decay process of a...
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7622031 |
Method for preparing oxidized polyolefin waxes
A method for producing an oxidized wax comprising (a) providing a uniform high molecular weight polyolefin resin feedstock having an average particle size smaller than about 30 mesh and a standard...
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7589150 |
Low molecular weight isotactic polypropylene polymers, copolymers and derivatives and materials prepared therewith
Disclosed are polypropylene homopolymers, copolymers and mono and polyfunctional polypropylene derivatives as well as methods of preparing them. These polymers are prepared in the eresence of a...
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7579411 |
Process for the controlled increase in the molecular weight of polyethylenes
The invention relates to hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer and methods for achieving a...
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7576161 |
Process for preparing terminally functionalized living and quasiliving cationic telechelic polymers
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer...
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7569642 |
Higher olefin polymer having polar group and process for producing the same
A higher olefin polymer having a polar group which is produced by subjecting to an incorporation reaction of a polar compound or halogen compound into a higher α-olefin polymer satisfying the...
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7566761 |
Olefin polymer and process for preparing the same
The present invention provides an olefin polymer having a narrow molecular weight distribution and a specific molecular weight, an olefin polymer having a functional group introduced at the...
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7550538 |
Chlorosulfonated propylene/olefin elastomers
Chlorosulfonated propylene/olefin elastomers containing 0.5-55 weight percent chlorine and 0.15 to 5 weight percent sulfur are prepared from metallocene catalyzed propylene/olefin copolymer base...
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7524913 |
Functionalized poly(4-methyl-1-pentene)
An olefin polymer having greater than 95 percent chain end unsaturation, where greater than 80 percent of said unsaturation comprises a 1,2-disubstituted olefinic unsaturation, especially polymers...
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7501476 |
Method for preparing polyolefins containing vinylidene end groups using azole compounds
Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically...
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7420019 |
Method for preparation of polyolefins containing exo-olefin chain ends
The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with...
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7408007 |
Maleated high acid number high molecular weight polypropylene of low color
A process for the manufacture of maleated polypropylenes having an acid number greater than 4.5, a yellowness index color of no greater than 76, and a number average molecular weight of at least...
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7399808 |
Molecular melt and methods for making and using the molecular melt
The present invention includes a molecular melt composition comprising an antioxidant and a coupling agent. The molecular melt is partially amorphous in nature. The invention also includes a method...
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7388033 |
Amine-functionalized polyisobutylenes for improved hydrophobizing microemulsions
In one embodiment, the present invention relates to amine-functionalized polyisobutylenes. Methods for preparing the amine-functionalized polyisobutylenes are also described. Furthermore, the...
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7361720 |
Highly crystalline polypropylene with low xylene solubles
The invention is directed to a polypropylene resin which has a M w /M n of less than 5, a melt flow rate of less than 7 g/10 min., a 1% secant flexural modulus of greater 5 than 300,000 psi and...
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7354976 |
Isobutene polymer functionalization by means of hydroboration
A process is described for functionalizing isobutene polymers having terminal olefinic unsaturation by treating with the reaction product of a borane source with from 0.5 to 1.8 equivalents of an...
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7339007 |
Low sediment process for thermally reacting highly reactive polymers and enophiles
A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high...
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7291681 |
Polyisobutenamines
Polyisobutenamines of the formula I:
R—X (I)
where R is a polyisobutenyl...
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7291679 |
Recyclable polymer and process for production thereof
A novel resin is provided which is renewable with less energy. A process for renewing the resin is also provided. The present invention includes a polymer having the repeating unit represented by...
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7273908 |
Chlorosulphonated ethylene-α-olefin copolymer and method for producing the same
A chlorosulphonated ethylene-α-olefin copolymer having a chlorine content of 0.5-20% by weight and a glass transition temperature in differential scanning calorimetry (DSC) of −50° C. or lower...
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7256236 |
Maleated polypropylenes and processes for the preparation thereof
Disclosed are methods for advantageously producing maleated polypropylenes having a relatively high percentage of bound maleic anhydride, based on the total amount of maleic anhydride moieties...
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7256242 |
Esterified copolymers of polyalkenes/unsaturated acidic reagents useful as lubricant and fuel additives
Esterified polyalkene/UAR copolymer reaction products useful as (1) a friction modifier for lubricating oils such as automatic transmission fluids to improve torque capacity and anti-shudder...
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7241840 |
Process for crosslinking thermoplastic polymers with silanes employing peroxide blends and the resulting crosslinked thermoplastic polymers
A composition comprising at least one silane possessing an unsaturated organic function; at least two free radical initiators, and a process for producing silane-crosslinked thermoplastic polymers...
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7163984 |
Waterborne coating compositions containing monomeric difunctional compounds
The invention provides curable waterborne coating compositions comprising an aqueous dispersion (A) comprising an organic binder component (A1) comprising at least 5% by weight of a reactive...
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7091285 |
Adducts of mid-range vinylidene content polyisobutylene polymer products and methods for making the same
A reaction product comprising an adduct of a mid-range vinylidene content PIB polymer composition and maleic anhydride, a phenolic compound or a compound having a reactive site for subsequent...
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7081502 |
Peroxide curable compounds based on butyl-like polymer without conjugated aliphatic dienes in its composition
The present invention relates to a shaped article containing at least one peroxide curable compound containing a butyl-like polymer(s) without any conjugated aliphatic diene in its composition,...
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7030196 |
Process for reducing the molecular weight of polypropylene
The invention relates to the use of known hydroxylamine esters selected from the group consisting of HALS (sterically hindered amine) compounds and novel hydroxylamine esters for the controlled...
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7001966 |
Method for the production of isobutene polymers
The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to...
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6969744 |
Living and quasiliving cationic telechelic polymers quenched by N-substituted pyrrole and methods for their preparation
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer...
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6962730 |
Coating composition containing crosslinkable monomeric difunctional compounds having at least thirty carbon atoms
The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which...
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6958382 |
Polyisobutenyl ethers and thioethers
A process for preparing polyisobutenyl (thio)ethers by reacting a polyisobutene epoxide having at least one terminal epoxide group with itself, with other epoxides and/or with nucleophiles selected...
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6933351 |
Process for forming polyalkenyl acylating agents
A process for producing polyalkenyl acylating agent, wherein, upon completion of the thermal reaction of a polyalkene and an unsaturated mono- or dicarboxylic acid or anhydride compound, the...
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6908673 |
Cable with recyclable covering
A cable with recyclable covering, particularly for transporting or distributing medium or high voltage energy, in which at least one covering layer is based on a thermoplastic polymer material of a...
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6894093 |
Materials free of endorine disruptive chemicals
The present invention describes plastic materials and food additives that are free or substantially free from endocrine disruptive chemicals. The plastic materials may be used in products which are...
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6888030 |
Advances in amination
Inclusion of a branched alcohol in the catalytic hydrogenation reaction involving an aliphatic nitro compound dramatically increases the efficiency of the conversion of nitro groups into amino...
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6812316 |
Powder coating compositions and powder slurry coating compositions containing monomeric difunctional compounds
The curable coating compositions of the invention comprise a particulate component having at least one binder component (a) which is a solid at 75° F./24° C., and an additive component (b). The...
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6803421 |
High flow filled propylene polymer compositions having improved impact and dimensional properties
High melt flow filled propylene polymer compositions suitable for injection molding are provided. The compositions are blends of propylene impact copolymer, high melt index plastomer and mineral...
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6787611 |
Purification means
Polymers derived from 4-acyloxystyrene are purified by fractionalization plus heating and cooling of the polymers in alcoholic solvents.
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6777503 |
Method for hydroformylating olefins having between 20 and 400 carbon atoms
A process for the hydroformylation of olefins having from 20 to 400 carbon atoms by reaction of the olefins with synthesis gas in the presence of a cobalt carbonyl catalyst and recovery of the...
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6756450 |
Chlorine-free polyolefin-based plastisol or organosol and method for producing the same
A chlorine-free polyolefin-based plastisol or organosol and method for producing the same, where the plastisol or organosol includes: (a) a finely-dispersed polyolefin in (b) 60 to 800 parts by...
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6747114 |
Polypropylene-based adhesive compositions
An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C 4 to C 20 ...
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6743845 |
Oriented high density polyethylene film, compositions and process suitable for preparation thereof
The draw ratio and/or rate of stretch of HDPE in film orientation can be increased, or the breakage frequency at a given draw ratio and draw rate decreased by the addition of an orientation...
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6730744 |
Method for copolymerization and resulting copolymers
The invention concerns a method for preparing block copolymers comprising steps which consist in: polymerising a first monomer using an organolanthanide catalyst wherein said catalyst in the form...
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6730747 |
Carbonyl containing compounds
In accordance with the present invention, there is provided a novel composition of matter having the formula: wherein R a , R b , R c , R d and R e are independently selected from the group...
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6706822 |
Method of producing polyethylene resins for use in blow molding
A method of processing polyethylene for use as an extruded blow molding resin to improve the properties and processability thereof is accomplished by modifying a polyethylene resin having a...
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6692679 |
Cross-linked molded plastic bearings
A method is provided for forming a plastic prosthesis bearing, net-shape bearing, near net-shape bearing or plastic stock from which such a bearing can be formed. The method includes the steps of...
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6653410 |
Method for treating resin composition
Disclosed is a treating method of a resin composition comprising: kneading a resin composition comprising a thermoplastic resin, 0 to 0.7 part by weight, based on 1 part by weight of the...
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6599969 |
Preparation of polyolefins with low extractables contents
A process for preparing stabilized olefin polymers which have a low cold heptane extractables content by polymerization of olefins with Ziegler or Phillips catalysts, wherein the polymer is,...
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