Patents by Inventor Philip E. Yeske
Philip E. Yeske 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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Patent number: 6307096Abstract: A method for making an aliphatic diisocyanate by (a) phosgenating an aliphatic diamine in the presence of an inert solvent or gas to form a crude reaction mixture; (b) distilling the crude reaction mixture to form an aliphatic diisocyanate production stream and an aliphatic diisocyanate waste stream; (c) introducing the aliphatic diisocyanate waste stream to a chamber and placing the waste stream under supercritical fluid conditions sufficient to dissolve an appreciable amount of the aliphatic diisocyanate component in the supercritical fluid; (d) separating the dissolved aliphatic diisocyanate component from the waste stream, wherein the remaining waste stream is a supercritically-purged aliphatic diisocyanate waste stream; (e) lowering the pressure sufficiently to precipitate the aliphatic diisocyanate component.Type: GrantFiled: December 28, 1999Date of Patent: October 23, 2001Assignee: Bayer CorporationInventors: Alexa B. Sommer, Mary Ann Wittig, Edwin Ray Hortelano, Philip E. Yeske, Jane F. Ciebien
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Patent number: 6281322Abstract: The present invention relates to coating compositions containing 40 to 100% by weight, based on resin solids, of an alkoxysilyl-functional polyisocyanate polyurea which is reaction product of A) a polyisocyanate component having an average functionality of 2.5 to 5.5, an NCO content of 11.0 to 20.0% by weight and a monomeric diisocyanate content of less than 10% by weight, and containing at least 50% by weight of a polyisocyanate prepared from 4,4′-diisocyanatodicyclohexyl-methane with B) at least 0.7 equivalents, based on the equivalents of isocyanate groups, of an aminosilane corresponding to formula (I) (RO)nY(3−n)Si—CH2CH2CH2—NHZ (I), wherein R represents methyl or ethyl, Y represents methyl, Z represents H, a C1-C12 alkyl or CH2CH2CH2—Si(OR)nY3−n, and n is 1, 2 or 3, and C) optionally other isocyanate-reactive compounds.Type: GrantFiled: December 1, 1999Date of Patent: August 28, 2001Assignee: Bayer AktiengesellschaftInventors: Stefan Groth, Reinhard Halpaap, Markus Mechtel, Lutz Schmalstieg, Philip E. Yeske
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Patent number: 5908948Abstract: The present invention relates to compounds containing alkoxysilane and urea groups corresponding to the formula ##STR1## wherein X represents identical or different organic groups which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is an alkoxy group,Z represents COOR.sub.1 or an aromatic ring,R represents the residue obtained by removing the isocyanate groups from an organic monomeric polyisocyanate or a polyisocyanate adduct,R.sub.1 and R.sub.2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100.degree. C. or less,R.sub.3 and R.sub.4 are identical or different and represent hydrogen or organic groups which are inert to isocyanate groups at a temperature of 100.degree. C. or less andn is an integer from 1 to 8.The present invention also relates to the use of these compounds for the preparation of coatings, sealants and adhesives.Type: GrantFiled: March 11, 1997Date of Patent: June 1, 1999Assignee: Bayer CorporationInventors: Richard R. Roesler, Edward P. Squiller, Philip E. Yeske, Stanley F. Siranovich
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Patent number: 5852203Abstract: The present invention relates to hydroxy-functional polyhydantoin prepolymers corresponding to the formula ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from an organic monomeric diisocyanate, a polyisocyanate adduct or an NCO prepolymer containing hydantoin groups, R.sub.2 represents an organic group which is inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.3 and R.sub.4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.5 represents the hydrocarbon radical obtained by removing the amino and hydroxyl groups from an amino alcohol, n has a value of 1 to 3 and m has a value of 2 to 6. The present invention is also directed to compositions suitable for the production of coatings, adhesives or elastomers containing these polyhydantoin prepolymers in combination with optionally blocked polyisocyanates or aminoplast resins.Type: GrantFiled: March 11, 1997Date of Patent: December 22, 1998Assignee: Bayer CorporationInventors: E. Haakan Jonsson, Douglas A. Wicks, Philip E. Yeske, Lyuba K. Gindin
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Patent number: 5777061Abstract: The present invention is directed to a powder coating composition containing as binderA) a polyisocyanate component which contains blocked isocyanate groups, is present in powder form, is solid below 40.degree. C. and liquid above 150.degree. C., and contains one or more polyisocyanatesi) having a blocked NCO content (calculated as NCO, MW 42) of 5 to 25% by weight andii) containing fluorine (calculated as F, AW 19) in an amount of 0.01 to 20% by weight,wherein the preceding percentages are based on the solids content of the polyisocyanate mixture andB) a polyhydroxyl component containing one or more high molecular weight polyols.Type: GrantFiled: February 14, 1996Date of Patent: July 7, 1998Assignee: Bayer CorporationInventors: Kenneth P. Yonek, Lanny D. Venham, Philip E. Yeske, Edward P. Squiller
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Patent number: 5756751Abstract: The present invention relates to compounds containing alkoxysilane and hydantoin groups and corresponding to the formula ##STR1## wherein X represents identical or different organic groups which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is an alkoxy group,Z represents COOR.sub.1 or an aromatic ring,R represents the residue obtained by removing the isocyanate groups from an organic monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,R.sub.1 represents an organic group which is inert to isocyanate groups at a temperature of 100.degree. C. or less,R.sub.3 and R.sub.4 are identical or different and represent hydrogen or organic groups which are inert to isocyanate groups at a temperature of 100.degree. C. or less,n is an integer from 1 to 8 andm has an average value of 1.5 to 6.The present invention also relates to the use of these compounds for the preparation coatings, sealants and adhesives.Type: GrantFiled: May 13, 1997Date of Patent: May 26, 1998Assignees: Bayer Aktiengesellschaft, Bayer CorporationInventors: Lutz Schmalstieg, Rainer Rettig, Gotz Limbeck, Richard R. Roesler, Edward P. Squiller, Philip E. Yeske, Stanley F. Siranovich
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Patent number: 5747629Abstract: The present invention relates to polyisocyanate adducts containing allophanate groups, fluorine and optionally isocyanurate groups that are prepared by reacting compounds a) whichi) are substantially free of hydroxyl groups and isocyanate groups,ii) have an average of at least two urethane groups per molecule andiii) contain 0 to 50% by weight of fluorine, based on the weight of the polyisocyanate adducts,with an excess quantity, based on the equivalents of urethane groups, of polyisocyanates b), which optionally contain fluorine, to form polyisocyanate adducts and optionally removing at least a portion of the unreacted excess polyisocyanates b), provided that compounds a) and polyisocyanates b) contain a total of at least 0.001% by weight, of fluorine, based on the weight of the polyisocyanate adducts.Type: GrantFiled: December 16, 1996Date of Patent: May 5, 1998Assignee: Bayer CorporationInventors: Philip E. Yeske, William E. Slack, Edward P. Squiller
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Patent number: 5733967Abstract: The present invention relates to aqueous dispersions of polyurethanes containing hydantoin groups (calculated as C.sub.3 N.sub.2 O.sub.2, MW 96) in an amount of 1 to 40% by weight, based on resin solids. The present invention also relates to the use of these dispersions for preparing coatings with excellent hydrolytic and thermal stability.Type: GrantFiled: August 20, 1996Date of Patent: March 31, 1998Assignee: Bayer CorporationInventors: Douglas A. Wicks, Arthur W. Mason, Philip E. Yeske, Lyuba K. Gindin, Kenneth P. Yonek, Peter D. Schmitt
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Patent number: 5726273Abstract: The present invention relates to heat-curable, cyclic isocyanate addition productsi) which are the reaction products of a polyisocyanate having two or more isocyanate groups with a compound containing two or more isocyanate-reactive groups andii) in which at least 10% by weight of the reaction products are in the form of cyclic groups containing urea and/or urethane groups.The present invention also relates to a process for the preparation of these cyclic isocyanate addition products and to the products obtained by curing these compositions at elevated temperatures, e.g., coatings, adhesives, molded articles, elastomers and foams.Type: GrantFiled: June 5, 1996Date of Patent: March 10, 1998Assignee: Bayer CorporationInventors: Douglas A. Wicks, Robert J. Kumpf, Sze-Ming Lee, Duane B. Priddy, Jr., Philip E. Yeske
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Patent number: 5691439Abstract: The present invention relates to polyisocyanate adducts containing allophanate groups, siloxane groups and optionally isocyanurate groups that are prepared by reacting compounds a) whichi) are substantially free of hydroxyl groups and isocyanate groups,ii) have an average of at least two urethane groups per molecule andiii) contain 0 to 50% by weight of siloxane groups, based on the weight of the polyisocyanate adducts,with an excess quantity, based on the equivalents of urethane groups, of polyisocyanates b), which optionally contain siloxane groups, to form polyisocyanate adducts and optionally removing at least a portion of the unreacted excess polyisocyanates b), provided that compounds a) and polyisocyanates b) contain a total of at least 0.001% by weight, of siloxane groups, based on the weight of the polyisocyanate adducts.Type: GrantFiled: December 16, 1996Date of Patent: November 25, 1997Assignee: Bayer CorporationInventors: William E. Slack, Philip E. Yeske, Edward P. Squiller
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Patent number: 5688590Abstract: The invention is directed to a process for preparing SRIM molded article. The process broadly requires the use of a fiber reinforcement mat which is placed inside the mold cavity, and then a polyurethane reaction system is injected into the mold. The system comprising a polyisocyanate and a blend of active hydrogen containing compounds requires aldimines as part of the blend of active hydrogen containing compounds.Type: GrantFiled: August 21, 1995Date of Patent: November 18, 1997Assignee: Bayer CorporationInventors: E. Haakan Jonsson, Kristen L. Parks, Harald Pielartzik, Philip E. Yeske, Douglas A. Wicks
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Patent number: 5663274Abstract: The present invention relates to heat-curable, cyclic isocyanate addition productsi) which are the reaction products ofa) a polyisocyanate component having an average isocyanate functionality of two or more and a uretdione group content (calculated as N.sub.2 C.sub.2 O.sub.2, MW 84) of 1 to 30%, based on the weight of the polyisocyanate component, withb) a compound containing two or more isocyanate-reactive groups andii) in which at least 10% by weight of the reaction products are in the form of cyclic groups containing urea and/or urethane groups. The present invention also relates to a process for the preparation of these cyclic isocyanate addition products and to the products obtained by curing these compositions, optionally in the presence of other isocyanate-reactive compounds, at elevated temperatures, e.g., coatings, adhesives, molded articles, elastomers and foams.Type: GrantFiled: June 5, 1996Date of Patent: September 2, 1997Assignee: Bayer CorporationInventors: Sze-Ming Lee, Philip E. Yeske, Duane B. Priddy, Jr., Robert J. Kumpf, Douglas A. Wicks
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Patent number: 5652301Abstract: The present invention relates to aqueous dispersions of polyureas containing hydantoin groups (calculated as C.sub.3 N.sub.2 O.sub.2, MW 96) in an amount of 1 to 40% by weight, based on resin solids. The present invention also relates to the use of these dispersions for preparing coatings having excellent hydrolytic and thermal stability.Type: GrantFiled: August 20, 1996Date of Patent: July 29, 1997Assignee: Bayer CorporationInventors: Peter D. Schmitt, Douglas A. Wicks, Lyuba K. Gindin, Philip E. Yeske, Arthur W. Mason, Kenneth P. Yonek
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Patent number: 5646227Abstract: The present invention is directed to a polyisocyanate mixturei) having an NCO content of 5 to 35% by weight and prepared from an organic diisocyanate,ii) containing up to 25% by weight of isocyanurate groups (calculated as N.sub.3, C.sub.3, O.sub.3, MW 126),iii) containing allophanate groups in an amount such that there are more equivalents of allophanate groups than urethane and urea groups and such that the polyisocyanate mixture remains stable and homogeneous in storage for 3 months at 25.degree. C. andiv) containing siloxane groups (calculated as SiO, MW 44) in an amount of 0.002 to 50% by weight,wherein the preceding percentages are based on the solids content of the polyisocyanate mixture, excluding any unreacted organic diisocyanate, and wherein the siloxane groups are incorporated by reacting an isocyanate group with a compound containing two or more isocyanate-reactive groups directly attached to carbon atoms and one or more siloxane groups.Type: GrantFiled: February 1, 1996Date of Patent: July 8, 1997Assignee: Bayer CorporationInventors: William E. Slack, Edward P. Squiller, Philip E. Yeske
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Patent number: 5633389Abstract: The invention relates to a thermoreversible process for the preparation of a hydantoin comprisng(a) reacting an unsaturated polyester with a monofunctional amine to yield a poly(ester aspartate), and(b) reacting said poly(ester aspartate) with an isocyanate to produce a poly(ester urea), and(c) heating said poly(ester urea) to form a hydantoin compound.The process is useful for the preparation of coatings.Type: GrantFiled: May 24, 1995Date of Patent: May 27, 1997Assignee: Bayer CorporationInventors: Erik H. Jonsson, Philip E. Yeske, Douglas A. Wicks, Harald Pielartzik
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Patent number: 5629403Abstract: The present invention relates to a coating composition having an improved pot life without a corresponding increase in dry time when cured under ambient conditions which containsa) a polyisocyanate component,b) an aldimine based on the reaction product of a polyamine having 2 or more primary amino groups with an aldehyde corresponding to the formula:O=CHCH(R.sub.1)(R.sub.2)wherein R.sub.1 and R.sub.2 may be the same or different and represent optionally substituted hydrocarbon radicals, or R.sub.1 and R.sub.2 together with the .beta.-carbon atom form a cycloaliphatic or heterocyclic ring andc) 0.001 to 5 weight percent, based on the weight of components a) and b), of a tin(IV) compound which is a catalyst for the reaction between isocyanate groups and hydroxyl groups,wherein components a) and b) are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to aldimine groups of 0.5:1 to 20:1.Type: GrantFiled: December 20, 1994Date of Patent: May 13, 1997Assignee: Bayer CorporationInventors: Sharon D. Hicks, Douglas A. Wicks, Philip E. Yeske
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Patent number: 5597930Abstract: The present invention relates to aspartate-functional hydantoin prepolymers prepared by reacting a polyisocyanate having a functionality of at least 1.8 with a polyaspartate corresponding to the formula ##STR1## wherein X represents an organic group which has a valency of n and is inert towards isocyanate groups at a temperature of 100.degree. C. or less, andR.sub.1 and R.sub.2 may be the same or different and represent optionally substituted hydrocarbon radicals,R.sub.3 and R.sub.4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less andn has a value of 2 to 6, preferably 2 to 4 and more preferably 2.The present invention is also directed to compositions suitable for the production of coatings, adhesives, elastomers, potting compounds or composite matrices containing these polyhydantoin prepolymers in combination with optionally blocked polyisocyanates.Type: GrantFiled: May 18, 1995Date of Patent: January 28, 1997Assignee: Bayer CorporationInventors: Douglas A. Wicks, Lyuba K. Gindin, Philip E. Yeske, E. Haakan Jonsson
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Patent number: 5596044Abstract: The present invention relates to hydroxy-functional prepolymers containing urea groups and corresponding to the formula ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from an organic monomeric diisocyanate, a polyisocyanate adduct or an NCO prepolymer containing hydantoin groups or hydantoin group precursors, R.sub.1 and R.sub.2 may be identical or different and represent organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.3 and R.sub.4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.5 represents the hydrocarbon radical obtained by removing the amino and hydroxyl groups from an amino alcohol, n has a value of 1 to 3 and m has a value of 2 to 6.Type: GrantFiled: May 18, 1995Date of Patent: January 21, 1997Assignee: Bayer CorporationInventors: Lyuba K. Gindin, Douglas A. Wicks, Philip E. Yeske, E. Haakan Jonsson
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Patent number: 5576411Abstract: The present invention is directed to a polyisocyanate mixturei) having an NCO content of 5 to 35% by weight and prepared from an organic diisocyanate,ii) containing at least 1% by weight of isocyanurate groups (calculated as N.sub.3, C.sub.3, O.sub.3, MW 126),iii) containing allophanate groups in an amount such that there are more equivalents of allophanate groups than urethane groups andiv) containing fluorine (calculated as F, AW 19) in an amount of 0.Type: GrantFiled: September 14, 1994Date of Patent: November 19, 1996Assignee: Bayer CorporationInventors: Philip E. Yeske, Edward P. Squiller, William E. Slack
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Patent number: 5574122Abstract: The present invention is directed to a polyisocyanate mixturei) having an NCO content of 5 to 35% by weight and prepared from an organic diisocyanate,ii) containing up to 25% by weight of isocyanurate groups (calculated as N.sub.3, C.sub.3, O.sub.3, MW 126),iii) containing allophanate groups in an amount such that there are more equivalents of allophanate groups than urethane or urea groups and such that the polyisocyanate mixture remains stable and homogeneous in storage for 3 months at 25.degree. C. andiv) containing siloxane groups (calculated as SiO, MW 44) in an amount of 0.002 to 50% by weight,wherein the preceding percentages are based on the solids content of the polyisocyanate mixture, excluding any unreacted organic diisocyanate, and wherein the siloxane groups are incorporated by reacting an isocyanate group with a compound containing one isocyanate-reactive group directly attached to a carbon atom and one or more siloxane groups.Type: GrantFiled: September 29, 1995Date of Patent: November 12, 1996Assignee: Bayer CorporationInventors: Philip E. Yeske, Edward P. Squiller, William E. Slack