Patents by Inventor Rudolf Faust
Rudolf Faust has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050176891Abstract: Novel copolymers, including block copolymers, which comprise: (a) a plurality of constitutional units that correspond to one or more olefin monomer species and (b) a plurality of constitutional units that correspond to one or more protected or unprotected hydroxystyrene monomer species.Type: ApplicationFiled: February 11, 2004Publication date: August 11, 2005Inventors: Rudolf Faust, Laszlo Sipos
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Publication number: 20050176903Abstract: According to an aspect of the present invention, a method is provided in which a double diphenylethylene compound is reacted with a polymer that contains a carbocationically terminated chain thereby providing a 1,1-diphenylene end-functionalized chain. Subsequently, an alkylating agent is reacted with the 1,1 -diphenylene end-functionalized chain, thereby providing an alkylated 1,1-diphenylene end-functionalized chain. In some embodiments, the method further comprises (a) optionally combining a 1,1-diphenylorganolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer followed by (b) reacting an organolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer. This provides an anionically terminated polymer, which can be used, for example, in subsequent anionic polymerization and coupling reactions.Type: ApplicationFiled: February 11, 2004Publication date: August 11, 2005Inventors: Rudolf Faust, Jae Cho
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Publication number: 20050143526Abstract: Methods are described herein for converting carbocationically terminated polymers to anionically terminated polymers. These methods comprise: (a) providing a carbocationically terminated polymeric moiety; (b) reacting the carbocationically terminated polymeric moiety with a heterocyclic compound of the formula where —X— is selected from —S—, —O—, —NH— and —NR—, and where R is an alkyl group or an aryl group, thereby providing an end-capped polymeric moiety; and (c) reacting the end-capped polymeric moiety with an organolithium compound to yield an anionically terminated polymeric moiety. Also described are block copolymers in which a first polymer block comprising cationically polymerized monomers is linked to a second polymer block comprising anionically polymerized monomers by a group, as well as a polymer in which a polymer block comprising cationically polymerized monomers is linked to a halogenated silane residue or a carbosilane residue by a group.Type: ApplicationFiled: June 18, 2004Publication date: June 30, 2005Inventors: Rudolf Faust, Axel Mueller
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Patent number: 6750267Abstract: Disclosed herein are radiation-curable polymers, a method of preparing radiation-curable polymers and compositions containing radiation-curable polymers. Radiation-curable polymers and compositions containing radiation-curable polymers are useful as coatings and adhesives.Type: GrantFiled: December 24, 2001Date of Patent: June 15, 2004Assignees: University of Massachusetts Lowell, Dow Corning CorporationInventors: Rudolf Faust, Savvas Hadjikyriacou, Toshio Suzuki, Maneesh Bahadur
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Publication number: 20030162858Abstract: Disclosed herein are radiation-curable polymers, a method of preparing radiation-curable polymers and compositions containing radiation-curable polymers. Radiation-curable polymers and compositions containing radiation-curable polymers are useful as coatings and adhesives.Type: ApplicationFiled: December 24, 2001Publication date: August 28, 2003Applicant: University of Massachusetts LowellInventors: Rudolf Faust, Savvas Hadjikyriacou, Toshio Suzuki, Maneesh Bahadur
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Patent number: 6469115Abstract: A method for preparing a moisture-curable, virtually telechelic, silyl-functional polyisobutylene is disclosed, said method comprising reacting, in the presence of a Lewis acid, (A) isobutylene; (B) an initiator of the formula (C) a styryl comonomer of the formula wherein R is selected from H or methyl group, R′ is a divalent non-aromatic hydrocarbon group having 1 to 6 carbon atoms, R″ is independently selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, R′″ is a divalent non-aromatic hydrocarbon group having 2 to 6 carbon atoms, X is independently a halogen group, Y is halogen and n is independently 1, 2 or 3.Type: GrantFiled: May 16, 2000Date of Patent: October 22, 2002Assignees: Dow Corning Corporation, University of Massachusetts LowellInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Aroop Kumar Roy, Toshio Suzuki
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Patent number: 6268451Abstract: A method for preparing a moisture-curable, pseudo-telechelic, silyl-functional polyisobutylene terpolymer is disclosed, said method comprising reacting, in the presence of a Lewis acid and a solvent, (A) an isobutylene monomer; (B) a isopropenylphenyl comonomer having the formula (C) a vinylphenyl comonomer of the formula wherein R′ is a divalent non-aromatic hydrocarbon group having 2 to 6 carbon atoms, R″ is independently selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, R is a divalent non-aromatic hydrocarbon group having 2 to 6 carbon atoms, X is independently a hydrolyzable group and n is independently 1, 2 or 3, with the proviso that rAC is greater than 1 and rAB is less than 1, wherein rAB is the reactivity ratio of said isobutylene in the presence of said comonomer (B) and said solvent and rAC is the reactivity ratio of said isobutylene in the presence of said comonomer (C) and said solvent.Type: GrantFiled: October 3, 2000Date of Patent: July 31, 2001Assignees: University of Massachusetts Lowell, Dow Corning Corporation LowellInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Toshio Suzuki
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Patent number: 6194597Abstract: There is disclosed a method for preparing a silyl-functional living cationic polymer which can be subsequently coupled to form a moisture-curable telechelic system, said method comprising reacting, in the presence of a Lewis acid, (A) at least one cationically polymerizable monomer with (B) an initiator of the formula wherein R is selected from H or methyl group, R′ is a divalent non-aromatic hydrocarbon group having, 1 to 6 carbon atoms, R″ is selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having, 6 to 10 carbon atoms, X is halogen, Y is halogen and n is 1, 2 or 3.Type: GrantFiled: April 15, 1999Date of Patent: February 27, 2001Assignees: Dow Corning Corporation, University of MassachusettsInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Aroop Kumar Roy, Toshio Suzuki
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Patent number: 6051657Abstract: There is disclosed a method for preparing a silyl-functional living cationic polymer which can be subsequently coupled to form a moisture-curable telechelic system, said method comprising reacting, in the presence of a Lewis acid,(A) at least one cationically polymerizable monomer with(B) an initiator of the formula ##STR1## wherein R is selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, R' is a divalent aliphatic hydrocarbon group having at least 3 carbon atoms, X is halogen, Y is selected from the group consisting of halogen, alkoxy. acyloxy and hydroxyl groups and a is 1, 2 or 3.Type: GrantFiled: December 3, 1998Date of Patent: April 18, 2000Assignees: Dow Corning Asia, Ltd., University of Massachusetts LowellInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Toshio Suzuki
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Patent number: 6046281Abstract: A method for coupling a living cationic polymer is disclosed, said method comprising reacting the living cationic polymer with an organic compound having at least 2 furan rings in its molecule, said reaction taking place in the presence of a Lewis acid. Preferably, the living cationic polymer is first prepared by polymerizing at least one monomer selected from isobutylene, isoprene or a styrenic monomer using a specific initiator, this reaction also being carried out in the presence of a Lewis acid.Type: GrantFiled: November 6, 1997Date of Patent: April 4, 2000Assignees: University of Massachusetts Lowell, Dow Corning CorporationInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Toshio Suzuki
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Patent number: 5981785Abstract: A novel initiator which may be used to prepare a silyl-functional living cationic polymer is disclosed, said initiator having the formula ##STR1## wherein R is independently selected from the group consisting of alkyl groups having 1 to 10 carbon atoms and aryl groups having 6 to 10 carbon atoms, R' is a divalent aliphatic hydrocarbon group having at least 3 carbon atoms, X is halogen, Y is selected from the group consisting of halogen, alkoxy, acyloxy and hydroxyl groups and a is 1, 2 or 3.Type: GrantFiled: December 3, 1998Date of Patent: November 9, 1999Assignees: University of Massachusetts, Dow Corning CorporationInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Toshio Suzuki
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Patent number: 5777044Abstract: A method for coupling a cationic polymer includes forming a reaction mixture of a cationic polymer and a bis(diphenylethylene). The reaction mixture is exposed to a temperature which causes the bis(diphenylethylene) to react with the cationic polymer, thereby coupling the cationic polymer. In another embodiment, the method includes forming a reaction mixture of an oxo-acid and a isopropenyl polyisobutylene. The reaction mixture is exposed to a temperature below about -30.degree. C., whereby the oxo-acid reacts with isopropenyl polyisobutylene, thereby coupling the polymer.Type: GrantFiled: November 24, 1997Date of Patent: July 7, 1998Assignee: University of Massachusetts LowellInventor: Rudolf Faust
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Patent number: 5690861Abstract: A method for coupling a cationic polymer includes forming a reaction mixture of a cationic polymer and a bis(diphenylethylene). The reaction mixture is exposed to a temperature which causes the bis(diphenylethylene) to react with the cationic polymer, thereby coupling to cationic polymer. In another embodiment, the method includes forming a reaction mixture of an oxo-acid and a isopropenyl polyisobutylene. The reaction mixture is exposed to a temperature below about -30.degree. C., whereby the oxo-acid reacts with isopropenyl polyisobutylene, thereby coupling the polymer.Type: GrantFiled: March 2, 1995Date of Patent: November 25, 1997Assignee: University of Massachusetts LowellInventor: Rudolf Faust
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Patent number: 5677386Abstract: The present invention provides a process for the capping of a living polymer with a substituted or unsubstituted diphenyl alkylene. Diphenyl alkylene is defined to also include substituted or unsubstituted .alpha.-methoxystyrene, trans-stilbene, 1-isopropenylnapthalene and 2,4-dimethyl-.alpha.-methylstyrene.Type: GrantFiled: March 24, 1995Date of Patent: October 14, 1997Assignee: University of Massachusetts LowellInventor: Rudolf Faust
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Patent number: 5665837Abstract: A composition of the invention includes a polymer component which consists essentially of an asymmetric telechelic polymer having a boron-containing head group. These asymmetric telechelic polymers can also have halogen tail groups. The end group functionalities make these polymers extremely useful because, for example, the functionalities facilitate subsequent elaboration of the polymer. A method of forming the composition includes forming a reaction mixture which consists essentially of an olefin, a Lewis acid, and a base which will react with essentially all protic impurities in the reaction mixture, thereby preventing protic initiation during polymerization of the olefin. The reaction mixture is exposed to conditions which cause the olefin to react to form an initiator in situ which can cause polymerization of additional olefin to form a polymerized olefin consisting essentially of a telechelic polymer. In another embodiment, the initiator has the structure BX.sub.2 --[CH.sub.2 --C(CH.sub.3).sub.2 ].sub.Type: GrantFiled: December 23, 1993Date of Patent: September 9, 1997Assignee: University of Massachusetts LowellInventors: Rudolf Faust, Lajos Balogh
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Patent number: 5451647Abstract: An olefin polymerization process is provided wherein an olefin chargestock is contacted with an organic compound polymerization initiator, a Lewis acid coinitiator and a pyridine compound such as 2,6-di-tert-butylpyridine to produce homopolymers, copolymers or block copolymers having a narrow molecular weight distribution.Type: GrantFiled: October 8, 1992Date of Patent: September 19, 1995Assignees: Exxon Chemical Patents Inc., University of Massachusetts LowellInventors: Rudolf Faust, Hsien-Chang Wang, Miklos Gyor
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Patent number: 5122572Abstract: This invention provides a novel catalyst composed of a complex of an organic acid or its ester and a Lewis acid, preferably boron trichloride that can add olefin monomers to increase the molecular weight of the complex from as low as 200 to in excess of a million, with the complex being active viz., living, until the complex dies, viz., is decomposed or destroyed so that polymers in the liquid or easily liquefiable range of 300 to about 10,000 can be made of those more difficult to be liquefied or unliquefiable, viz., those of over 10,000 up to 100,000 or in some cases 500,000 and then those in the range of the elastomers, or moldable or extrudable plastics range having very high molecular weights, generally in excess of 100,000 up to in excess of 500,000 and having useful end groups such as the halogens and specifically chloride, allyl, acryl or methacryl, acetate or formate to name some of the more useful ones.Type: GrantFiled: November 29, 1989Date of Patent: June 16, 1992Inventors: Joseph P. Kennedy, Rudolf Faust
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Patent number: 4910321Abstract: This invention provides a novel catalyst composed of a complex of an organic acid or its ester and a Lewis acid, preferably boron trichloride that can add olefin monomers to increase the molecular weight of the complex from as low as 200 to in excess of a million, with the complex being active viz., living, until the complex dies, viz., is decomposed or destroyed so that polymers in the liquid or easily liquefiable range of 300 to about 20,000 can be made or those more difficult to be liquefied or unliquefiable, viz., those of over 10,000 up to 100,000 or in some cases 500,000 and then those in the range of the elastomers, or moldable or extrudable plastics range having very high molecular weights, generally in excess of 100,000 up to in excess of 500,000 and having useful end groups such as the halogens and specifically chloride, allyl, acryl or methacryl, acetate or formate to name some of the more useful ones.Type: GrantFiled: February 16, 1988Date of Patent: March 20, 1990Assignee: University of AkronInventors: Joseph P. Kennedy, Rudolf Faust
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Patent number: 4568732Abstract: Novel telechelic halogenated polymers of cationically polymerized olefin monomers are formed carrying from 2 to about 6 terminal halogens by a continuous polymerization method. The continuous polymerization method being achieved by feeding to a stirred reactor a first stream composed of a solvent solution of at least one monomer and an inifer and another stream composed of a solvent solution of boron chloride to effect the polymerization of said monomer to a telechelic halogenated polymer product and withdrawing the reaction product from said reactor essentially in amounts equal to that of the sum of the two streams with the feeds to said reactor being simultaneously and continuously fed thereto while maintaining the temperature in the range of minus 10.degree. to minus 80.degree. C.Type: GrantFiled: January 9, 1985Date of Patent: February 4, 1986Assignee: The University of AkronInventors: Joseph P. Kennedy, Rudolf Faust, Agota Fehervari