Abstract: The present invention is related to surfactant-based formulations comprising the polyelectrolytes and blends of such polyelectrolytes with non-cellulosic cationic polysaccharide polymers wherein the surfactant is a phosphate ester. The surfactant-based formulations exhibit improved clarity of the resulting formulations, their improved conditioning of keratin substrates, textile substrates, and hard-surface substrates, their improved deposition of dispersed phase materials onto keratin substrates, textile substrates, and hard-surface substrates, their improved lather performance, and their improved rheology in applications such as personal care and household care products and textile applications.
Abstract: Paint formulations are neutralized with a non-VOC neutralizing agent. The neutralizing agent is a neutralized amino acid or intermediate, an amino phosphate, an amino phosphonate, amino sulfate, or amino sulfonate wherein the neutralizing agent has a pKa2 of at least 9. These neutralizing agents can be used to provide a paint formulation within a pH range of 8 to 10 and do not add any volatile organic compounds to the paint formulation.
Type:
Application
Filed:
March 14, 2013
Publication date:
September 19, 2013
Applicant:
HERCULES INCORPORATED
Inventors:
Bruce K. Fillipo, Margaret K. Oplinger, Jeffrey K. Politis
Abstract: Compositions comprising sun-care actives and self adapting polymers are disclosed. Self adapting polymers align themselves with the hydrophilic group pointing to the surface during application thus delivering an aesthetically pleasing surface to the consumers with a pleasant after feel. These polymers then rearrange upon contact with water so that the hydrophobic groups now point to the surface which then increases the water resistance of the formulation.
Type:
Application
Filed:
February 4, 2011
Publication date:
September 19, 2013
Applicants:
Ashland Licensing and Intellectual Property LLC, Hercules Incorporated, ISP Investments Inc., Aqualon Company
Inventors:
Hani M. Fares, Rita Marie Guerrero, Donald I. Prettypaul, Tracey Ross
Abstract: The present invention relates generally to a method for dispersing a dry cellulose ether powder in an aqueous solution without forming lumps using powder handling and mixing devices. The cellulose ethers can be cross-linked with an aldehyde cross-linker. An acid or partially neutralized acid is used to improve the solubility.
Type:
Application
Filed:
April 22, 2013
Publication date:
September 12, 2013
Applicant:
Hercules Incorporated
Inventors:
Prachur Bhargava, Konstantin A. Vaynberg
Abstract: The viscosity of solutions of nonionic synthetic associative thickeners is controlled by adding organophosphates to the solution of associative thickeners. The associative thickeners are hydrophobically modified polymers and the organophosphates include one or more hydrophobic groups.
Type:
Application
Filed:
March 7, 2013
Publication date:
September 12, 2013
Applicant:
HERCULES INCORPORATED
Inventors:
Bruce K. Fillipo, Tuyen T. Nguyen, Arjun C. Sau
Abstract: A method for inhibiting resinous and sticky substances from filling or forming deposits on or within papermaking forming wire, by applying to said wire an effective inhibiting amount of a composition comprising at least one cationic agent selected from the group consisting of (a) cationic polyureas, (b) hydrophobically modified cationic polymers, (c) alkylammonium or/and alkylimidazolium salts, and optionally at least one nonionic amphiphilic copolymer selected from (i) hydrophobically modified polyethylene glycols], (ii) hydrophobically modified cellulose ethers, (iii) copolymers of vinyl alcohol and vinyl alkonate, (iv) polyoxyalkylene block copolymers, and (v) hydrophilically modified polydimethylsiloxanes.
Abstract: The disclosure relates to an adhesive composition for bonding lignocellulosic substrates. The adhesive composition contains a crosslinker and a non-urea diluent where the non-urea diluent is present in an amount from about 0.01 to about 75 weight % based on the total wet weight of the composition and where the crosslinker contains essentially no formaldehyde and contains no urea. Also disclosed is the adhesive further containing an aqueous mixture of a protein source. The disclosure also relates to a process for making lignocellulosic composites utilizing the disclosed adhesive composition and to the lignocellulosic composites made using the disclosed process.
Type:
Application
Filed:
February 27, 2012
Publication date:
August 29, 2013
Applicant:
HERCULES INCORPORATED
Inventors:
Richard L. Brady, Qu-Ming Gu, Ronald R. Staib
Abstract: A joint compound with improved crack resistance is formed by combining water, a filler such as calcium carbonate, a latex emulsion binder, a thickening system such as methylhydroxyethyl cellulose, and nanocrystalline cellulose. The nanocrystalline cellulose is provided in an amount effective to reduce the crack formation during drying.
Abstract: Vinylamine-containing polymers are disclosed where the amine groups are substituted with cationic functional groups. Processes for preparing such polymers, as well as compositions comprising such polymers are also disclosed. Among other applications, these polymers can be used in papermaking applications as dry strength additives, wet strength additives, retention aids, drainage aids, and pitch and stickies control agents.
Type:
Grant
Filed:
January 29, 2010
Date of Patent:
August 27, 2013
Assignee:
Hercules Incorporated
Inventors:
Jonathan M. McKay, Qu-Ming Gu, Richard J. Riehle
Abstract: Methods for making a heterogeneous polymer blend comprising one or more anionic polymers, one or more cationic polymers, and one or more non-ionic polymers, which method comprises (a) adding to a non-neutral solution a first amount of polymerization initiator and one or more anionic or cationic monomers, wherein each monomer has the same charge; (b) a second amount of the polymerization initiator and one or more non-ionic monomers; (c) adding a third amount of the polymerization initiator and one or more ionic monomers that are oppositely charged from the monomers of (a); adding stepwise, a fourth amount of the polymerization initiator to react any residual monomer, and (e) neutralizing the resulting polymer blend. Also claimed are heterogeneous polymer blends containing polymers formed from one or more anionic, cationic, and non-ionic monomers, either polymerized in situ or separately and then combined.
Abstract: The present invention relates to a process of making composite structures comprising applying an adhesive composition comprising a protein component, an azetidinium functionalized polymer component and a viscosity modifying component to one or more substrates.
Abstract: A personal or household care product includes cationic, nonionic or cationic/nonionic derivatized polysaccharide in combination with a phosphate ester surfactant. The derivatized polysaccharide polymer is formed by reacting the polysaccharide ester surfactant for a sufficient time and at a sufficient temperature in the presence of water, caustic, and at least one surfactant. The polysaccharide polymer may optionally be reacted with an oxidizing agent, hydrolytic or proteolytic enzymes, molecular weight reducing agents and a cationizing agent and nonionic agent. The formed derivatized polysaccharide has a lower clarity in water than in an aqueous surfactant system.
Type:
Application
Filed:
February 20, 2012
Publication date:
August 22, 2013
Applicant:
HERCULES INCORPORATED
Inventors:
Anita N. Chan, Louis Patrick Dziuk, JR., Paquita Erazo-Majewicz, Jashawant J. Modi, M. Olaf Michelson, Bruce Kevin Fillipo, Nabil Naouli
Abstract: Disclosed herein are hydrophobically-modified poly(aminoamides) useful as fixative detackifiers for stickies and pitch control in papermaking processes. These polymers are prepared via modification of amine-containing water-soluble poly(aminoamides) with reactive functional group-containing hydrophobic compounds. In particular, poly(aminoamides) may be modified, under appropriate reaction conditions, with long chain alkyl glycidyl ether, AKD (alkyl ketene dimer), ASA (alkyl succinyl anhydride), or Quab (3-chloro-2-hydroxypropyl-N,N,N-dimethylalkyl ammonium chloride). These novel polymers are effective in inhibiting deposition of organic contaminants in pulp and papermaking systems.
Type:
Grant
Filed:
November 18, 2009
Date of Patent:
August 13, 2013
Assignee:
Hercules Incorporated
Inventors:
Qu-Ming Gu, Lloyd A. Lobo, Erin A. S. Doherty, Huai N. Cheng
Abstract: Disclosed is a method of preparing a lignocellulosic composite; the method comprising the steps of combining one or more dry protein sources as powders and one or more lignocellulosic materials; subsequently combining with the protein and lignocellulosic combination, a liquid mixture comprising a curative for the protein source, forming the resulting mixture into a composite structure and then curing the composite structure.
Abstract: Aqueous cellulose ether blend with improved thermal gel strength are formed by combining nanocrystalline cellulose with thermal gelling cellulose ethers. This blend can be used as a binder in a variety of different applications, such as food products and ceramic green bodies. It can also be used to form capsule shells for pharmaceuticals.
Abstract: The present invention provides an improved method of producing a stable acid denatured soy/urea adhesive having improved wet and dry strengths, with more efficient production and lower production costs. The method comprises combining urea with soy flour that has been acid treated until denatured and substantially free from urease activity. The soy flour is preferably lowered to a pH of 2.0 to 4.0 for at least 1 minute. Optionally, the method may also include adding a crosslinking agent, diluent or both to the soy flour/urea adhesive and/or adding an emulsified or dispersed polymer. Adhesives and dispersions prepared according to the methods of this invention offer increased stability and strength properties.
Abstract: An aqueous based functional system contains a stable fluid polymer suspension (FPS) thickening agent of a polysaccharide, polyethylene glycol (PEG), and hydrated thickening silica. The functional systems may be formulations of personal care excluding oral care, household care, oil field servicing fluids, Civil Engineering servicing fluids, paper coatings, construction fluids, ceramic glazes, foods, firefighting retardants, mineral processing, aqueous based coatings, building materials, construction, pharmaceuticals, medical care, paper making process, and paper coating. The FPS provides to the functional system comparable or better rheology and viscosity properties as compared to when using similar thickening agents in dry, solid form. A method of preparing the aqueous based functional system is also provided by adding a sufficient amount of a stable FPS that is compatible with the functional system to the system to thicken the functional system.
Abstract: A stable aqueous composition comprising polyvinylamine and liquid cationic starch in a ratio of from 90 to 55 parts of polyvinylamine on active basis to 10 to 45 parts of liquid cationic starch on active basis is disclosed. The composition can be used in papermaking as a strength or as a drainage aid.
Type:
Grant
Filed:
April 7, 2011
Date of Patent:
May 21, 2013
Assignee:
Hercules Incorporated
Inventors:
Frank J. Sutman, Christopher P. Dilkus, Qu-Ming Gu
Abstract: Surfactant mediated, free radical initiated emulsion/dispersion polymerization of n-vinylformamide with styrene or substituted styrene copolymers, and its subsequently hydrolyzed products bearing formamide, amine and styrenic functionality are disclosed. Processes for polymerization, polymer composition, and hydrolysis of such polymers are also disclosed. These polymers bearing cationic functionality can be used in papermaking applications as dry strength additives, wet strength additives, retention aids, drainage aids, sizing agent, sizing promoter and pitch and stickies control agents.
Abstract: Hydroxyethylcellulose with a low molar substitution and which is uniformly substituted is useful in cement-based systems, including mortars. The cement-based system exhibits long pot life, as well as very high water retention capability at hot temperature, as well as better paste stability and optimized setting behavior for hot as well as cold temperature compared to typical, cement-based systems with commercial cellulose ether compounds. Less hydrophilic cellulose ethers such as methylhydroxyethylcellulose can be added as a second cellulose ether.
Type:
Grant
Filed:
May 31, 2012
Date of Patent:
April 30, 2013
Assignee:
Hercules Incorporated
Inventors:
Wilfried Adolf Hohn, Kirill N. Bakeev, John Kenneth Bard, Michael Dittel, Teng-Shau Young