Abstract: A method of manufacturing a polyelectrolyte having the step of sulfonating polystyrene resin in a state where the polystyrene resin has been dissolved or dispersed in solvent composed of alicyclic compounds.
Abstract: A resin and its use as a methylating agent. One embodiment is a resin comprising a solid support and cationic methylated sulfonium, sulfoxonium, selenonium or phosphonium salts immobilized on the solid support. Another embodiment is the use of the resin as a methylating agent, for example in the conversion of morphine to codeine.
Abstract: Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.
Type:
Application
Filed:
January 10, 2001
Publication date:
April 11, 2002
Inventors:
Ray E. Drumright, Robert H. Terbrueggen, Kenneth A. Burdett, Francis J. Timmers, Stephen F. Hahn
Abstract: Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.
Type:
Application
Filed:
October 10, 2001
Publication date:
March 28, 2002
Inventors:
Ray E. Drumright, Robert H. Terbrueggen, Kenneth A. Burdett, Francis J. Timmers, Stephen F. Hahn
Abstract: Protected, functionalized heterotelechelic polymers, hydrogenated and/or deprotected analogues thereof, and processes to prepare these polymers. Monomers are polymerized using a protected functionalized initiator to form a living polymer, and the living polymer is reacted with an electrophile to form heterotelechelic polymers.
Type:
Grant
Filed:
November 19, 1998
Date of Patent:
March 26, 2002
Assignee:
FMC Corporation
Inventors:
James Anthony Schwindeman, Roderic Paul Quirk, Conrad William Kamienski
Abstract: A method is disclosed for increasing the rate of vulcanization of a halogenated isobutylene sulfur rubber composition comprising heating said halogenated isobutylene rubber composition to a temperature ranging from 100° C. to 200° C., wherein said halogenated isobutylene rubber composition contains from 0.05 to 10 phr of sodium thiosulfate pentahydrate.
Type:
Application
Filed:
June 19, 2001
Publication date:
January 17, 2002
Applicant:
The Goodyear Tire & Rubber Company
Inventors:
Richard Michael D'Sidocky, Bernard Matthew Bezilla, Leighton Randolph Spadone, David Michael Smith, Mark Andrew Marinko
Abstract: The invention includes a water-curable azidosilane grafted polymer selected from the group consisting of (i) homogeneous ethylene polymers which has a density less than or equal to about 0.900 g/cm3, and (ii) interpolymers of at least one ethylene or &agr;-olefin and at least one vinylidene aromatic compound. The water-curable silane-grafted polymer may comprise the reaction product of: at least one first polymer, the first polymer selected from the group consisting of an interpolymer, a substantially linear ethylene polymer, and a mixture thereof; the interpolymer comprising polymer units of at least one ethylene or &agr;-olefin and at least one vinylidene aromatic compound; and at least one monofunctional azidosilane. The invention further includes a process for producing a water-curable silane-grafted polymer.
Type:
Grant
Filed:
August 9, 1999
Date of Patent:
December 18, 2001
Assignee:
The Dow Chemical Company
Inventors:
Ray Eugene Drumright, Thoi Huu Ho, Robert Henry Terbrueggen
Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5 wt. % of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.
Type:
Grant
Filed:
April 11, 2001
Date of Patent:
November 20, 2001
Assignee:
Bayer Aktiengesellschaft
Inventors:
Thomas Scholl, Ulrich Eisele, Jürgen Trimbach, Stefan Kelbch
Abstract: Novel substantially random functionalized interpolymers and processes for making them are disclosed. The novel interpolymers include those prepared from ethylene and vinyl aromatic monomers such as ethylene-styrene interpolymers which are then functionalized with a variety of electrophilic and nucleophilic reagents.
Type:
Grant
Filed:
February 4, 1999
Date of Patent:
November 6, 2001
Assignee:
The Dow Chemical Company
Inventors:
Ray E. Drumright, Robert H. Terbrueggen, Kenneth A. Burdett, Francis J. Timmers, Stephen F. Hahn
Abstract: Disclosed are polymers comprising mercaptoalkylamide-functionalized styrene units of Formula I
wherein
m is an integer from 1 to 3;
R is H or C1-C3 alkyl; and
Q is a bond, —CH2—, —CH2CH2—, —CH2CH2CH2— or
a process for their preparation, and their use as supports for solid phase synthesis of small molecules and as supported nucleophiles to aid solution phase synthesis.
Abstract: The invention relates to preparation of EPDM-based and EPR-based rubber compositions which are vulcanized with peroxide together with a specified combination of sulfur and acrylate co-agents. The invention further relates to articles having at least one component thereof.
Type:
Grant
Filed:
March 4, 1999
Date of Patent:
October 9, 2001
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Larry Ashley Gordon, James Edward Taucher
Abstract: The present invention relates to the coagglomeration of random vinyl substituted aromatic/C4-C6 conjugated diolefin polymers with sulfur. Said coagglomerate is storage stable and easily blended with asphalt under a variety of mixing conditions. Further, polymer/asphalt blends prepared with the sulfur coagglomerated polymers show improved storage stability against phase separation.
Type:
Grant
Filed:
June 14, 2000
Date of Patent:
October 9, 2001
Assignee:
BASF Corporation
Inventors:
Koichi Takamura, Paul Velasco, Peter Blanpain, John Cheng, Heinz Plaumann, Richard W Liu, Wayne Millican, Barry Baughman
Abstract: The invention includes a process of preparing a coupled polymer blend comprising heating an admixture containing (1) a polymer blend containing: (A) from 1 to 99 weight percent of one ore more &agr;-olefin/hindered vinyl monomer substantially random interpolymers, each having been made from monomer components comprising: (1) from 0.5 to 65 mole percent of either (a) at least one vinyl aromatic monomer, or (b) at least one hindered aliphatic vinyl monomer, or (c) a combination of at least one vinyl aromatic monomer and at least one hindered aliphatic vinyl monomer; and (2) from 35 to 99.
Type:
Grant
Filed:
August 26, 1998
Date of Patent:
September 4, 2001
Assignee:
The Dow Chemical company
Inventors:
Thoi H. Ho, Robert H. Terbrueggen, H. Craig Silvis, Clark H. Cummins, Michael J. Mullins
Abstract: A method of manufacturing a polyelectrolyte having the step of sulfonating polystyrene resin in a state where the polystyrene resin has been dissolved or dispersed in solvent composed of alicyclic compounds.
Abstract: The invention provides a copolymer of an isomonoolefin having from 4 to 7 carbon atoms and containing a copolymerized alkenyl styrene moiety represented by the formula I:
where m=0-2, n=0-20, each of R1 through R7 are independently selected from the group consisting of hydrogen, C1 to C10 alkyl and C1 to C10 primary or secondary alkyl halides, and at least one of R1, R2 or R3 is hydrogen, and when m=1 or 2, R3 and R1 are —CH2—.
Type:
Grant
Filed:
October 7, 1998
Date of Patent:
August 14, 2001
Assignee:
Exxon Chemical Patents, Inc.
Inventors:
Timothy Daniel Shaffer, David Yen-Lung Chung
Abstract: A method of preparing a functionalized polymer comprising the steps of initiating the formation and propagation of an anionically-polymerized living polymer, and terminating the propagation of the living polymer by reacting the polymer with a terminating agent selected from the group of agents defined by the formulas (III), (IV), and (V)
where C is a carbon atom, S is a sulfur atom, X is a halogen atom, R2 and R4 are independently selected from hydrogen and carbon-based moieties, and where the phenyl groups are selected from unsubstituted and substituted phenyl groups.
Type:
Grant
Filed:
December 31, 1998
Date of Patent:
August 14, 2001
Assignee:
Bridgestone/Firestone Research, Inc.
Inventors:
David F. Lawson, Mark L. Stayer, Thomas A. Antkowiak
Abstract: This invention relates to a rubber composition comprised of a combination of cis 1,4-polybutadiene and at least one liquid hydroxyl terminated polyalkylene polymer together with a halogenated copolymer of isobutylene and p-methylstyrene and a minor amount of at least one conjugated diene-based elastomer, preferably cis 1,4-polyisoprene. The rubber composition contains particulate reinforcement as carbon black or as carbon black and silica together with a coupling agent. The invention also relates to a tire having a sidewall of such rubber composition.
Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5wt.% of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.
Type:
Grant
Filed:
July 8, 1999
Date of Patent:
June 26, 2001
Assignee:
Bayer Aktiengesellschaft
Inventors:
Thomas Scholl, Ulrich Eisele, Jürgen Trimbach, Stefan Kelbch
Abstract: The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one interpolymer of an alpha olefin and vinyl aromatic monomer and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer. The polymer preferably. comprises ethylene, and a vinyl aromatic monomer, preferably styrene. The amount of poly(sulfonyl azide) is preferably from about 0.01 to about 1 weight percent of the interpolymer and the reaction preferably takes place at a temperature greater than about 150° C., more preferably 185° C. The process optionally and in one preferred embodiment additionally comprises steps (b) fabricating an article from the coupled polymer and (c) crosslinking the fabricated coupled polymer.
Type:
Grant
Filed:
August 5, 1998
Date of Patent:
April 3, 2001
Assignee:
The Dow Chemical Company
Inventors:
Thoi H. Ho, Ray E. Drumright, Robert H. Terbrueggen, Clark H. Cummins, Michael J. Mullins, H. Craig Silvis
Abstract: A dispersant comprises a polystyrenesulfonic acid having a weight-average molecular weight in the range of 2,000 to 100,000 or a salt thereof, wherein at least 70% of the terminals of the polymer chain have an indane ring of the formula (I):
wherein X represents a cation selected from the group consisting of a hydrogen, alkali metals, alkaline earth metals, ammonium and organic amines, and n and m each represent 0 or an integer of at least 1. The dispersant has excellent properties of dispersing organic and inorganic substances and an effect of remarkably improving the stability of a dispersion system such as a coal/water slurry.