Abstract: A paper sizing and coating composition suitable for use in food packaging that is effective over a range of atmospheric conditions. The composition includes a starch and a water-soluble protein having a bloom strength of at least about 150. The composition can be applied over a paper substrate to improved oil and grease resistance.
Type:
Grant
Filed:
March 21, 2003
Date of Patent:
September 14, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Robert L. Billmers, Viotor L. Mackewicz, Ralph M. Trksak
Abstract: The present invention is directed to a release composition for molds and formers used in the production of natural and synthetic latex articles. The release coating contains a water-borne, high Tg polymer formed from at least one hydrophobic monomer and at least one hydrophilic monomer, where the Tg of the polymer is at least −10° C. One advantage of the release composition is that it is compatible with a coagulant solution used in the formation of latex gloves. Articles formed using the release coating have good anti-blocking properties.
Type:
Grant
Filed:
June 15, 2001
Date of Patent:
August 31, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Zhixin Li, Joseph B. Gardner, Chaodong Xiao, John S. Thomaides, Yasuo Tokimori, Stanislaw Petrash, Christopher G. Gore
Abstract: This invention relates to a semiconductor package in which a silicon die is adhered to a substrate with an adhesive comprising a resin having the structure:
in which Q is an oligomeric or polymeric group containing at least one carbon to carbon double bond, A is a hydrocarbyl group or an aromatic group, and L is a linking group resulting from the reaction of a functional group, excluding epoxy, on the precursor for the segment containing silane and a functional group, excluding epoxy, on the precursor for the segment containing the at least one carbon to carbon double bond.
Type:
Grant
Filed:
November 20, 2002
Date of Patent:
August 31, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: This invention relates to a thickening composition comprising a “co-processed” combination of modified starch and flour. In addition, the invention relates to the process for providing such “ready-for-use” compositions and the improved food products prepared from the co-processed compositions.
Type:
Grant
Filed:
January 8, 2002
Date of Patent:
August 17, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Janet M. Carver, Norman Edward Collins, Aaron K. Edwards, Joseph P. Eisley, Robert C. Kendall
Abstract: A thermal interface member in a heat generating, electronic device is provided. The thermal interface member comprises either a single fluoroelastomer or a blend of fluoroelastomer components that are copolymers of hexafluoropropylene and vinylidene and consists of greater than 40% fluorine along the backbone, and one or more conductive fillers. The fluoroelastomer blend contains at least one component with a Mooney viscosity of 50 poise or less and at least one component with a Mooney viscosity of greater than 50 poise, while the single fluoroelastomer component may have a Mooney viscosity of either less than or greater than 50.
Type:
Grant
Filed:
March 12, 2003
Date of Patent:
August 17, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: The invention relates to a process for the preparation of aqueous dispersions of latex particles having a heterogeneous morphology by a semicontinuous emulsion polymerization, comprising the emulsion polymerizing of ethylenically unsaturated (co)monomers, accompanied by, the addition of cationic and/or anionic and/or nonionic emulsifiers and/or protective colloids as stabilizers, which are directly used as such or synthesized in situ, the semicontinuous emulsion polymerization being performed in the presence of the stabilizer or stabilizers with a monomer mixture, which a) contains at least one nonionic, ethylenically unsaturated monomer with a glass transition temperature Tg above about 30° C. in a quantity of about 10 to 70 wt. %, based on the total weight of ethylenically unsaturated (co)monomers and b) at least one hydrophilic, ethylenically unsaturated monomer in a quantity of about 5 to 30 wt. %, based on the total weight of ethylenically unsaturated (co)monomers.
Type:
Grant
Filed:
March 21, 2001
Date of Patent:
July 20, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: The present invention is related to a two-side treated formed rubber article having a polymer coating on the outer surface; and a chlorinated inner surface. It is also related to a process for making gloves using a polymer as a mold release and anti-blocking agent on the outside of the glove, and a chlorination of the glove inside surface. The rubber article can be formed as a powder-free glove.
Type:
Grant
Filed:
January 22, 2002
Date of Patent:
July 20, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Ann C. Savoca, Zhixin Li, Joseph B. Gardner
Abstract: This invention relates to aqueous emulsion copolymers comprising from about 2% to about 20% of ethylene, from about 20% to about 78% of vinyl acetate, and from about 20% to about 60% of a functionalized monomer selected from the group consisting of acid containing monomers, nitrogen containing monoolefinically unsaturated monomers, and hydroxyl containing monomers. The present invention also pertains to methods for making the ethylene vinyl acetate aqueous emulsion copolymers containing high concentrations of functionalized monomers and to ethylene vinyl acetate aqueous emulsion copolymers made by the the novel methods.
Type:
Grant
Filed:
November 21, 2000
Date of Patent:
July 13, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: A hydrophobe-containing alkali soluble or swellable copolymer thickener comprising an emulsion polymerization product of (A) an ethylenically unsaturated copolymerizable surfactant monomer having a cloud point of from about 65° C. to about 95° C., wherein the surfactant monomer has the formula
M(EO)x(BO)zOR1
wherein M is a residue selected from the group consisting of an ethylenically unsaturated carboxylic acid, and an ethylenically unsaturated dicarboxylic acid, EO is an ethylene oxide unit; BO is a butylene oxide unit; x is from 10 to 45; z is from 5 to 35; provided that x+z is from 20 to 45; and R1 is selected from the group consisting of alkyl, alkylene, cycloalkyl, cycloalkylene, and arylalkyl group wherein the alkyl group has 1 to 4 carbon atoms; (B) an &agr;,&bgr;-ethylenically unsaturated monocarboxylic acid monomer; and (C) a nonionic &agr;,&bgr;-ethylenically unsaturated monomer.
Type:
Grant
Filed:
August 13, 1998
Date of Patent:
July 13, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Joseph S. Maxim, Jr., James C. Long, Daniel W. Verstrat
Abstract: These compounds contain an oxetane functionality and a cinnamyl functionality. The oxetane functionality is homopolymerizable in reactions that can undergo cationic or anionic ring opening, and the cinnamyl functionality is polymerizable with compounds such as electron acceptor compounds. The dual functionality allows for dual cure processing. The generic structure of such compounds is
in which R is a methyl or ethyl group, X and Y independently are a direct bond, or an ether, ester, or carbamate group, and Q is a divalent hydrocarbon (which may contain heteroatoms of N, O, or S), provided that X and Y will not both be direct bonds in the same molecule.
Type:
Grant
Filed:
May 6, 2003
Date of Patent:
June 22, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: Adhesive compositions containing a base compound or resin and an epoxy compound or resin with allyl or vinyl functionality show enhanced adhesive strength. The compositions can be used in microelectronic applications.
Type:
Grant
Filed:
July 7, 2000
Date of Patent:
June 15, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Mark R. Bonneau, Yun K. Shin, Gina Hoang, Martin Sobczak
Abstract: Adhesives for bonding paper facings to aerated concrete provide increased manufacturing efficiencies and long term stability of constructs prepared therewith. Adhesives may advantageously be used in the foamed state.
Type:
Grant
Filed:
November 15, 2001
Date of Patent:
June 15, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: The present invention provides an efficient acid conversion process by which native and modified starches may be treated to afford products with low viscosity and a higher proportion of lower molecular weight compounds than the corresponding aqueous acid conversion processes. Such converted starches demonstrate unique properties and, accordingly, are useful in a variety of products.
Type:
Grant
Filed:
August 3, 2001
Date of Patent:
June 8, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Paul A. Altieri, Faith L. Ricketts, Daniel B. Solarek
Abstract: A process for treating an aqueous polymer latex/dispersion of synthetic polymers prepared by polymerizing one or more monomeric materials for at least 80%, involving:
A. adding to the polymer latex/dispersion a sufficient amount of at least one reducing agent in one or more portions followed by adding at least one free radical generator in such a way that at least the bulk of the reducing agent has been added before addition of free radical generator is started and maintaining the mixture at a suitable temperature for a period of time which is sufficient to reduce the VOC-level of the latex/dispersion to decrease to below 1,500 ppm, preferably to below 1,000 ppm after which
B. water vapor and/or gas is/are sparged into the latex/dispersion while the temperature of the latex/dispersion is maintained at a suitable temperature for a period of time which is sufficient to decrease the VOC-level to below 200 ppm, preferably to below 50 ppm, most preferably to below 15 ppm.
Type:
Grant
Filed:
September 10, 2002
Date of Patent:
May 25, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Johanna Maria Sophia Lorteije, Markus Aurelius Von Arx, Rolf Studer, Petrus Leonardus Swinkels
Abstract: The present invention provides a cosmetic which is superior in both characteristics of feel and spread at the time of application. The cosmetic is a cosmetic comprising an amphoteric urethane resin having carboxyl group(s) and tertiary amino group(s) in a molecule, and a silicone polymer.
Type:
Grant
Filed:
February 6, 2002
Date of Patent:
May 18, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: The present invention relates to a coating composition for fibrous substances containing 25 to 75 percent by weight of pigment, and 0.5 to 25 weight percent of a polymer comprising 1 to 15 percent by weight of one or more monomers having sterically hindered secondary amine groups and 10 to 40 weight percent of a carboxylic acid monomer. The coating is useful on fibrous and non-fibrous substrates on which liquid inks will be fixed. The non-ionic polymer becomes cationic when contacted by anionic inks, and the cationic nature of the coating provides the substrate with an excellent point of attachment for inks and dyes, resulting in bright, crisp printed images. The coating is especially useful for ink-jet printing on paper, paperboard, textiles, non-wovens, wood, and films.
Type:
Grant
Filed:
September 11, 2002
Date of Patent:
May 11, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: The present invention relates to biodegradable chemical compositions wherein core substrates, particularly oil well chemicals, are adsorbed onto particulate starch, particularly granular starch, providing a stable, controlled release formulation suitable for use in oil field applications. The invention further relates to the process of preparing obtaining these compositions.
Type:
Grant
Filed:
August 7, 2001
Date of Patent:
April 20, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Martin C. Crossman, James A. Rosie, Daniel B Solarek
Abstract: A curable composition comprises a compound having at least one epoxy group and at least one maleimide, styrenic or cinnamyl group per molecule. A representative compound has the structure
in which Z′ and Z are any monomeric, oligomeric or polymeric organic moiety; X is a direct bond or a functional group; and R and R′ are hydrogen, an alkyl group having 1 to 12 carbon atoms, or an aromatic or heteroaromatic ring or fused ring having 3 to 10 carbon atoms within the ring structure.
Type:
Grant
Filed:
July 22, 2002
Date of Patent:
April 6, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Abstract: The present invention is directed to an ethylene-vinyl acetate dispersion and a process for making the dispersion by polymerizing a monomer mixture having vinyl acetate and ethylene in a batch process, in the presence of a stabilizing system of polyvinyl alcohol and without added surfactants, to form an ethylene-vinyl acetate polymer dispersion. The copolymer dispersion has a solids level of greater than 65 percent by weight, and a viscosity of less than 5000 mPa·s when measured at 65 percent solids at 25° C. The dispersion can be dried to form a redispersible powder. Both the dispersion and powder are useful in adhesive and coating formulations.
Type:
Grant
Filed:
July 27, 2001
Date of Patent:
April 6, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
John C. H. Kerr, Alistair J. McLennan, Robert N. Mitchell, Caroline S. Pattenden
Abstract: The present invention is directed to an abrasive substrate formed by the application of a polymer composition to the surface of the substrate. The polymer composition is applied to the substrate in a manner producing an uneven, structured coating on the substrate, resulting in a surface having abrasive properties. The invention is especially useful in producing abrasive non-woven materials useful as wet and dry wipes.
Type:
Grant
Filed:
May 5, 2003
Date of Patent:
March 30, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Steven Pauls, Rajeev Farwaha, Christopher Barcomb