Patents by Inventor Robert L. Billmers
Robert L. Billmers 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: 5852080Abstract: Hydroxyl-containing ester or acid waxes useful in hot melt adhesives to provide compatible compositions with good thermal stability and color retention are disclosed and have the formula:R(OH).sub.n COOR.sup.1where R is a hydrocarbon group of 12 to 30 carbons, n is 2 to 6 and R is H, C.sub.1 to C.sub.4 alkyl group or (CH.sub.2 CH.sub.2 O).sub.x H where x is 1 to 4.Type: GrantFiled: July 28, 1997Date of Patent: December 22, 1998Assignee: National Starch and Chemical Investment Holding CorporationInventors: Michael T. Philbin, Robert L. Billmers, Charles W. Paul
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Patent number: 5797984Abstract: Biodegradable, expanded starch products are provided having increased resistance to water and high humidity and comprising low DS hydrophobic starch derivatives having the formula: ##STR1## where ST is starch, R is a dimethylene group, R' is a substituent hydrocarbon having 10 to 16 carbon atoms, Y is a metal, x is an integer equal to the valence of Y and derivative or ester group has a DS of from about 0.03 to 0.12.Type: GrantFiled: April 15, 1997Date of Patent: August 25, 1998Assignee: National Starch and Chemical Investment Holding CorporationInventors: Robert L. Billmers, Paul A. Altieri
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Patent number: 5776476Abstract: Cosmetic compositions useful in skin care are provided containing an effective aesthetic enhancing amount of calcium salt starch derivatives having the following formula: ##STR1## where ST is the starch base material, R is a dimethylene group and R' is a substituent hydrocarbon group having 10 to 16 carbon atoms.Type: GrantFiled: February 28, 1997Date of Patent: July 7, 1998Assignee: National Starch and Chemical Investment Holding CorporationInventors: Robert L. Billmers, Daniel B. Solarek, Maria Tolchinsky, Donna L. Ronco, Joseph Pasapane
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Patent number: 5672699Abstract: A method for preparing hydrophobic starch derivatives wherein the starch and anhydride reagent are predispersed or intimately contacted by mixing at low acidic pH to form a stable dispersion before being brought to alkaline reaction conditions.Type: GrantFiled: September 6, 1995Date of Patent: September 30, 1997Assignee: National Starch and Chemical Investment Holding CorporationInventors: Robert L. Billmers, Victor L. Mackewicz
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Patent number: 5500087Abstract: Amino-multicarboxylate starch ether derivatives are provided having the following structure: ##STR1## wherein St-O represents a starch molecule,R is H or CH.sub.3 ;R' is H, CH.sub.3 or COOH;M is a cation;n is 2 or 3; andR" is H or alkyl of 1 to 18 carbon atoms.These starch derivatives are particularly useful as retention and strength aids in papermaking.Type: GrantFiled: May 23, 1995Date of Patent: March 19, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventors: Karen A. Bernard, John Tsai, Robert L. Billmers, Robert W. Sweger
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Patent number: 5455340Abstract: Amino-multicarboxylate starch ether derivatives are provided having the following structure: ##STR1## wherein St-O represents a starch molecule,R is H or CH.sub.3 ;R' is H, CH.sub.3 or COOH;M is a cation;n is 2 or 3; andR" is H or alkyl of 1 to 18 carbon atoms.These starch derivatives are particularly useful as retention and strength aids in papermaking.Type: GrantFiled: February 2, 1994Date of Patent: October 3, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: Karen A. Bernard, John Tsai, Robert L. Billmers, Robert W. Sweger
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Patent number: 5434201Abstract: A method of preparing a hot melt adhesive composition comprising a starch ester having a DS (degree of substitution) of 0.3 to 3.0 and a selected non-volatile, organic diluent wherein the starch ester is a wetcake having 40% or more by weight of moisture.Type: GrantFiled: July 29, 1994Date of Patent: July 18, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: Dennis Neigel, Gregory A. Sweeey, Paul Altieri, Charles W. Paul, Robert L. Billmers, David C. Rawlins
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Patent number: 5350354Abstract: This invention provides biodegradable tampon applicators adapted for disposal in water-base toilet systems. This invention also provides plasticized starch compositions for use in fabrication of tampon applicators and methods for fabrication thereof.Type: GrantFiled: December 6, 1991Date of Patent: September 27, 1994Assignee: National Starch and Chemical Investment Holding CorporationInventor: Robert L. Billmers
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Patent number: 5321132Abstract: Starch esters having an intermediate DS of about 0.5 to 1.8 are prepared in an aqueous one step process by reacting starch with high treatment levels of organic acid anhydride and high concentrations of alkaline reagent.Type: GrantFiled: December 23, 1992Date of Patent: June 14, 1994Assignee: National Starch and Chemical Investment Holding CorporationInventors: Robert L. Billmers, Martin M. Tessler
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Patent number: 5258477Abstract: Various novel acetal- and aldehyde-containing monomers are prepared. They can be polymerized and copolymerized by conventional polymerization techniques. The polymers contain repeating units derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group and optionally one or more repeating units derived from ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer such as ethylene, vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, methyl methacrylate or acrylic acid. Aqueous emulsions of polymers containing the acetal-containing monomers and a hydroxy-containing monomer are useful as binders for nonwoven fabrics.Type: GrantFiled: October 16, 1990Date of Patent: November 2, 1993Assignee: National Starch and Chemical Investment Holding CorporationInventors: John J. Tsai, Patrick G. Jobe, Robert L. Billmers, Rama S. Chandran, Paul R. Mudge, Michael T. Sarkis
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Patent number: 5227481Abstract: Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable reagents include polycationic alkyl, aryl, alkaryl, cycloaliphatic, or heterocyclic amines, some of which are novel compositions. The polycationic polysaccharide derivatives prepared from these reagents are useful in the manufacture of paper.Type: GrantFiled: April 9, 1991Date of Patent: July 13, 1993Assignee: National Starch and Chemical Investment Holding CorporationInventors: John J. Tsai, Peter T. Trzasko, Michael T. Philbin, Robert L. Billmers, Martin M. Tessler, Joseph A. Van Gompel, Morton W. Rutenberg
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Patent number: 5049634Abstract: A derivatized graft polymer of a polysaccharide, a crosslinked graft polymer of a polysaccharide, and a derivatized and crosslinked graft polymer of a polysaccharide are prepared. The derivatized polymer has the structure Sacch-g-[(M--CH.dbd.N--Y).sub.x -g-[(M).sub.q ]; the crosslinked polymer has the structure Sacch-g-[(M--CH.dbd.N).sub.z -P].sub.w -g-[(M).sub.q ] or Sacch-g-[(M--CH.dbd.C).sub.z -P].sub.w -g-[(M).sub.q ]; the derivatized and crosslinked polymer has the structure Sacch-g-[(M--CH.dbd.N--Y).sub.x ]-g-[(M--CH.dbd.N)-P]-g-[(M).sub.q ] or Sacch-g-[(M--CH.dbd.N--Y).sub.x ]-g-[(M--CH.dbd.C).sub.z -P].sub.w -g-[(M).sub.q ]. Sacch represents a polysaccharide such as starch, gum, or cellulose; g-represents a graft; M represents one or more ethylenically or allylically unsaturated monomers, at least one of which contains an acetal or aldehyde; P represents a multivalen residue from a reagent containing more than one primary amine group or ketone group; --N.dbd.Type: GrantFiled: September 22, 1989Date of Patent: September 17, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: John J. Tsai, Patrick G. Jobe, Robert L. Billmers, Rama S. Chandran
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Patent number: 5004791Abstract: Disclosed are a polysaccharide derivative having the structure: ##STR1## and a polysaccharide graft polymer having the structure: Sacch--O--(G).sub.m --(M)--.sub.n, wherein Sacch- is a polysaccharide; m is zero or one; G is the residue of a polymerizable, unsaturated monomer which is bonded to the polysaccharide in an ether or ester linkage; n is greater than one; M is the residue of one or more polymerizable, unsaturated, monomer(s), at least one of which is a siloxane-containing monomer, which have been grafted to the polysaccharide by free radical polymerization; R is an organic group which is bonded to the polysaccharide by an ether or ester linkage and to the silicon by a carbon-silicon linkage; R.sub.1 is a straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl group, or an aryl, aralkyl or alkaryl group; and R.sub.2 and R.sub.3 are, independently, straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl groups, or aryl, aralkyl or alkaryl groups, or alkoxides of straight or branched C.sub.1 -C.sub.Type: GrantFiled: September 10, 1990Date of Patent: April 2, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventor: Robert L. Billmers
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Patent number: 4992536Abstract: Polycationic polysaccharide derivatives containing more than one cationic substituent per substituted hydroxyl group are prepared by a site selective reaction of a cationic polysaccharide derivative with a suitable cationic reagent at a pH from 7.0 to 9.0. Suitable reagents include cationic alkyl, aryl, alkaryl, cycloaliphatic, or heterocyclic amines, and polymer thereof, which selectively react with a cationic substituent rather than a hydroxyl group of the cationic polysaccharide derivative. The polycationic polysaccharide derivatives prepared from these reagents are useful in the manufacture of paper.Type: GrantFiled: October 31, 1989Date of Patent: February 12, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Robert L. Billmers, Daniel B. Solarek, Ralph M. Trksak
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Patent number: 4973680Abstract: Disclosed are a polysaccharide derivative having the structure: ##STR1## and a polysaccharide graft polymer having the structure: Sacch-O-(G).sub.m -(M)-.sub.n, wherein Sacch- is a polysaccharide; m is zero or one; G is the residue of a polymerizable, unsaturated monomer which is bonded to the polysaccharide in an ether or ester linkage; n is greater than one; M is the residue of one or more polymerizable, unsaturated, monomer(s), at least one of which is a siloxane-containing monomer, which have been grafted to the polysaccharide by free radical polymerization; R is an organic group which is bonded to the polysaccharide by an ether or ester linkage and to the silicon by a carbon-silicon linkage; R.sub.1 is a straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl group, or an aryl, aralkyl or alkaryl group; and R.sub.2 and R.sub.3 are, independently, straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl groups, or aryl, aralkyl or alkaryl groups, or alkoxides of straight or branched C.sub.1 -C.sub.Type: GrantFiled: March 3, 1989Date of Patent: November 27, 1990Assignee: National Starch and Chemical Investment Holding CorporationInventor: Robert L. Billmers
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Patent number: 4929670Abstract: A polysaccharide derivative having the structure Sacch--O--Z--Ar--CH.dbd.N--Y or ##STR1## where Sacch--O-- represents a polysaccharide molecule; Z is --(CH.sub.2).sub.n -- or ##STR2## Ar is a divalent aromatic group; Y is (a) a monovalent group derived from a water-soluble substituted or unsubstituted aromatic compound containing only one free primary amine group, or (b) a monovalent group derived from a water-soluble substituted or unsubstituted aliphatic or cycloaliphatic compound containing only one primary amine group, or (c) a multivalent group derived from a water-soluble protein containing more than one primary amine group; n is one or greater; and m is zero or greater, is prepared by first modifying the polysaccharide with a reagent to introduce free aromatic aldehyde groups and then reacting with a suitable amine-containing reagent. The siloxane-containing starch derivatives are useful in glass forming size compositions.Type: GrantFiled: April 14, 1989Date of Patent: May 29, 1990Assignee: National Starch and Chemical Investment Holding CorporationInventors: Robert L. Billmers, David M. Del Giudice, Martin M. Tessler
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Patent number: 4866151Abstract: Polysaccharide graft polymers which comprise an acetal-containing or aldehyde-containing homopolymer or copolymer grafted to a polysaccharide base have been prepared. The monomer repeating units in the homopolymer are derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group; The monomer repeating units in the copolymer are derived from the above monomer and derived from one or more ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer. A and A' are independently a lower alkyl or A and A' together form at least a 5-membered cyclic acetal; with the proviso that the graft polymer contain no ##STR1## groups when the aldehyde groups are present. The aldehyde-containing graft polymers are useful for imparting wet strength to paper.Type: GrantFiled: October 26, 1987Date of Patent: September 12, 1989Assignee: National Starch and Chemical CorporationInventors: John J. Tsai, Patrick G. Jobe, Robert L. Billmers
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Patent number: 4839449Abstract: A polysaccharide derivative having the structure Sacch--O--Z--Ar--CH.dbd.N--Y or ##STR1## where Sacch-O- represents a polysaccharide molecule; Z is --(CH.sub.2).sub.n -- or ##STR2## Ar is a divalent aromatic group; Y is (a) a monovalent group derived from a water-soluble substituted or unsubstituted aromatic compound containing only one free primary amine group, or (b) a monovalent group derived from a water-soluble substituted or unsubstituted aliphatic or cycloaliphatic compound containing only one primary amine group, or (c) a multivalent group derived from a water-soluble protein containing more than one primary amine group; n is one or greater; and m is zero or greater, is prepared by first modifying the polysaccharide with a reagent to introduce free aromatic aldehyde groups and then reacting with a suitable amine-containing reagent. The siloxane-containing starch derivatives are useful in glass forming size compositions.Type: GrantFiled: October 26, 1987Date of Patent: June 13, 1989Assignee: National Starch and Chemical CorporationInventors: Robert L. Billmers, David M. Del Giudice, Martin M. Tessler, Michael J. Hasuly
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Patent number: 4804769Abstract: Polysaccharide aldehydes having the formula Sacch-O-CH.sub.2 -CH.dbd.CH-CHO, Sacch-O-CH.sub.2 -C.tbd.C-CHO, ##STR1## such as starch, cellulose, and gum aldehydes, are useful for imparting wet, dry, or temporary wet strength to paper. They are prepared by a non-oxidative method which involves reacting the polysaccharide base, in the presence of alkali, with a derivatizing acetal reagent having the general structure ##STR2## and then hydrolyzing the acetal by adjusting the pH to less than 7, preferably 2-4. In the formulas, n is 1-3; R.sup.11 and R.sup.12 are independently an alkyl, aryl, aralkyl, or alkaryl group when n is 1, R.sup.11 or R.sup.12 is one of the groups when n is 2, or R.sup.11 and R.sup.12 are not present when n is 3; R.sup.13 is an alkyl group, optionally containing an ether linkage, or an aralkyl group; R.sup.14 and R.sup.15 are individually a hydrogen or a methyl group; R.sup.16, R.sup.17, and R.sup.18 are individually an alkyl group; Y.sup.Type: GrantFiled: April 10, 1987Date of Patent: February 14, 1989Assignee: National Starch and Chemical CorporationInventors: Daniel B. Solarek, Patrick G. Jobe, Martin M. Tessler, Robert L. Billmers, Diane J. Lamb, John J. Tsai
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Patent number: 4788280Abstract: Polysaccharide aldehydes having the formula ##STR1## or Sacch--O--CH.sub.2 --Ar--CHO (II) such as starch, cellulose, and gum aldehydes, are useful as paper additives for imparting strength and as the granular or gelatinized portion of a corrugating adhesive. Those having formula I are prepared by a nonoxidative method which involves reacting the polysaccharide base, in the presence of alkali, with a derivatizing acetal reagent having the general structure ##STR2## and then hydrolyzing the acetal by adjusting the pH to less than 7, preferably 2-4. In the formula Ar is an aryl group, optionally containing an ether linkage, or an alkaryl group and A and A' are lower alkyls or together form at least a 5-membered cyclic acetal. The polysaccharide aldehydes are crosslinked by the addition of selected polyfunctional crosslinkers such as an aliphatic primary polyamine or polyketone.Type: GrantFiled: September 8, 1987Date of Patent: November 29, 1988Assignee: National Starch and Chemical CorporationInventors: Robert L. Billmers, Martin M. Tessler, David M. Del Giudice, Craig Leake