幾種陽離子聚合物-多聚糖的改進專利：

Patent Issued for Polysaccharide Products with Improved Performance and Clarity in Phosphate Ester Surfactant-Based Aqueous Formulations and Process for Preparation (USPTO 9561166)

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2017 FEB 25 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- A patent by the inventors Chan, Anita N. (Wilmington, DE); Dziuk, Jr., Louis Patrick (Karnes City, TX); Erazo-Majewicz, Paquita (Landenberg, PA); Modi, Jashawant J. (Hockessin, DE); Michelson, M. Olaf (Loveland, OH); Fillipo, Bruce Kevin (Springfield, PA); Naouli, Nabil (Wilmington, DE), filed on February 20, 2012, was published online on February 7, 2017, according to news reporting originating from Alexandria, Virginia, by NewsRx correspondents.

Patent number 9561166 is assigned to HERCULES INCORPORATED (Wilmington, DE).

The following quote was obtained by the news editors from the background information supplied by the inventors: "Personal care compositions containing cationic polymers have been found to deliver rheology, thickening, lather richness and conditioning benefits to hair and skin substrates. Cationic polymers also improve deposition of other active benefiting agents such as silicone and silicone derivatives, anti-dandruff agents, color, moisturizing agents, emollients. The cationic polymers can be based on polysaccharide backbones or on synthetic polymer backbones or mixture thereof.

"Cationic polysaccharides and other polymers have been used widely in personal care, household, industrial, and institutional products to perform various benefiting agent functions in the final product, ranging from the use of the polymer as gellants, binders, thickeners, stabilizers, emulsifiers, spreading, lathering and deposition aids. Cationic polysaccharides and other polymers also function as carriers for enhancing the conditioning, anti-microbial activities, lubrication, rheology, efficacy, deposition, moisturizing, color, lather, emolliency, aesthetics as well as for the delivery of chemically and physiologically active ingredients in personal care, household, institutional and industrial compositions. Depending on the application, substrates to which the personal care, household, industrial, and institutional product is applied can be skin, hair, or textile substrates.

"Cationic polymers have been used in hair care products to provide conditioning, moisturizing, anti-static, deposition of color, other conditioning and non-conditioning agents, deposition of fragrance to the hair. In addition, in hair care products they provide for deposition of anti dandruff/antimicrobial agent to hair and scalp. In skin care products, these same polymers can provide conditioning effects to the skin. In addition, they provide moisturizing, lubrication, deposition of color, other conditioning and non-conditioning agents, deposition of fragrance, and deposition of anti dandruff/antimicrobial agent. When incorporated into detergent and/or fabric softening formulations, these same polymers can provide conditioning, softening, anti-abrasion and antistatic characteristics to fabrics.

"Wet and dry combability and friction measurements are typical test methods used to measure conditioning performance of polymers in shampoo and conditioner applications. Friction values are also frequently used to reflect conditioning benefits to skin. Commercial cationic conditioning polymers in shampoo formulations have been reported to reduce the wet combing force experienced on combing wet hair by 5%-99% relative to the shampoo containing no polymer. The performance of different cationic polymers in these applications varies. However, typically it is desirable that shampoos contain cationic polymers to achieve a good balance of wet and dry combing force reduction, with good optical clarity in a formulation.

"For example, cationic galactomannan polymers, such as cationic guar, and other polymers originating from seeds or other natural origins, contain insoluble components which can include protein components, which may interact with surfactants in the formulation, leading to unstable and opaque formulations. Since the conditioning performance of the polymer is strongly related to its solubility in and interactions with the surfactants in the formulation, it is desirable to improve the solubility of the conditioning polymer in the surfactant system which in effect improves the clarity of the surfactant-based formulation.

"EP1501873 A1 addresses the need for a cationic galactomannan polymer with good optical clarity in personal care, household, and fabric cleansing formulations.

"U.S. Pat. No. 6,210,689 discloses an amphoteric guar composition for treating keratin substances.

"U.S. Pat. No. 5,756,720 describes a process for producing a polygalactomannan composition having nonionic and cationic groups attached to the backbone to achieve high optical clarity in cleansing surfactant formulations.

"WO99/36054 describes hydroxypropyl modified cationic polygalactomannans, which have been found lacking in conditioning performance.

"U.S. Pat. No. 4,381,259 describes shampoo compositions containing cationic polymers and improvements in shampoo performance by addition of phosphoric acid ester surfactants to the shampoo composition. This patent does not discuss shampoo compositions with combined improved deposition of benefit agents and enhanced clarity in the formulation.

"U.S. Pat. No. 4,298,494 describes shampoo compositions containing cationic polygalactomannan gums and anionic additives to improve deposition onto hair from the shampoo. This patent does not discuss surfactant compositions with improved clarity in the formulation.

"U.S. Pat. No. 5,489,674 describes a process for preparing polygalactomannan gums using an aqueous alcohol slurry process, the resulting product giving 85-100% transmittance at wavelengths between 500-600 nm at 0.5 parts polymer in 100 parts of an aqueous solution. The use of this material in personal care applications is disclosed.

"U.S. Pat. No. 5,536,825 discusses a process for producing a derivatized guar gum composition that demonstrates greater than 75% light transmission at a wavelength from about 500-600 nanometers when dispersed in water in the amount of about 0.5 parts per 100 parts water and use of this composition in personal care compositions.

"U.S. Pat. No. 7,067,499 discloses a composition comprising at least one cationic polygalactomannan having a lower limit mean average MW of 5,000 and an upper limit MW of 200,000, having a light transmittance in aqueous solution at 10 wt % polymer concentration of at least 80% at a wavelength of 600 nm, and a protein content less than 1% based on polysaccharide content, and an aldehyde content of at least 0.01 meq/g, where optical clarity is achieved through the use of a filtration process or other processes.

"Cationic polysaccharides based on cellulosic backbones, such as UCare Polymer JR400 having a high cationic substitution, are known to give good clarity in a broad range of surfactant systems. However, these polymers have also been cited by the manufacturer as giving buildup problems on the hair after repeated use.

"U.S. Pat. No. 4,129,722 describes the use of surfactants in polysaccharide processing for producing water-soluble or water-swellable polysaccharide derivatives having a high degree of substitution (DS), from 0.05-2.5 DS, comprising suspending the polysaccharide in an organic solvent, immiscible with the aqueous derivatizing reagent phase, in the presence of cationic, anionic, or nonionic surfactants. This patent does not discuss processing in aqueous processes or improved clarity of the resulting products in surfactant-based systems.

"Consequently, there still exists a need in the marketplace for personal care and household care formulations with enhanced conditioning performance, including silky feel to the substrate, such as hair, skin, or textile fabric, enhanced deposition of active materials and conditioning agents, and improved clarity and improved aesthetics, such as shampoo clarity, and essentially no buildup of polymer or conditioning components after repeated use without the need for removal of insoluble material from the polysaccharide or the use of solvents to clarify the product. Also, the need exists for a process to produce these polysaccharides in an aqueous-based process rather than a solvent containing process."

In addition to the background information obtained for this patent, NewsRx journalists also obtained the inventors summary information for this patent: "Applicants specifically incorporate by reference the entire contents of all cited documents in this disclosure. Further, when an amount, concentration, or other value or parameter is given as either a range, preferred range, or a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. Where a range of numerical values is recited herein, unless otherwise stated, the range is intended to include the endpoints thereof, and all integers and fractions within the range. It is not intended that the scope of the invention be limited to the specific values recited when defining a range.

"It has been found unexpectedly that cationic, anionic, nonionic or amphoteric polysaccharide polymers such as cationic galactomannan polymer compositions having high clarity in surfactant-based compositions can be produced by inclusion of materials such as surfactants during the preparation of the polymer compositions using an aqueous-based process. The present invention relates to a process for preparing a cationic, nonionic, amphoteric, or anionic polysaccharide polymer composition having high clarity in surfactant-based compositions and to the product produced through this process.

"The process of the present invention comprises the steps of: reacting a polysaccharide polymer or derivatized polysaccharide polymer for a sufficient time and at a sufficient temperature in the presence of water, caustic and at least one surfactant. The reaction can be conducted with other processing steps. The process may additionally comprise reacting the polysaccharide polymer or derivatized polysaccharide polymer for a sufficient time and at a sufficient temperature with an oxidizing agent such as hydrogen peroxide or other reactant such as hydrolytic or proteolytic enzymes, acids, or other agents that reduce the molecular weight of the polysaccharide or galactomannan polymer or associated protein or other polysaccharide components.

"The process may also comprise reacting the polysaccharide polymer or derivatized polysaccharide polymer for a sufficient time and at a sufficient temperature with a compound containing either hydrocarbon functionality, such as alkyl or hydroxyalkyl compounds, anionic functionality, such as a carboxylic acid compound, a sulfonic acid compound, a phosphoric acid compound, a phosphate compound, or cationic functionality, such as a primary, secondary, or tertiary amino compound or quaternary ammonium compound containing groups capable of reacting with reactive hydrogen ions present on the polysaccharide or derivatized polysaccharide to produce the nonionic, anionic, or cationic polysaccharide polymer composition. The polysaccharide polymer composition may also contain combinations of these groups.

"The present process comprises using a surfactant, such as nonionic surfactants, such as polysorbate surfactants such as Tween 20 or Tween 60, or anionic surfactants such as fatty acids, phosphate ester surfactants, alkyl sulfate or alkyl ether sulfate surfactants, cationic surfactants such as tertiary amine or quaternary ammonium surfactants or mixtures during the production steps for the polysaccharide. An individual surfactant can be used alone or in combination with other surfactants, including other nonionic surfactants, carboxylate surfactants, sulfate or sulfonic acid surfactants, phosphate or phosphonic acid surfactants, amine or quaternary ammonium surfactants during the production steps for polysaccharide derivatives.

"The present invention is directed to a composition of at least one polysaccharide, especially polysaccharides derived from natural sources, such as polygalactomannan or derivatized galactomannan polymers having a weight average molecular weight (Mw) in the range of from about 5,000 to about 10,000,000 and having a water-soluble and water-insoluble fraction, wherein the water-insoluble fraction constitutes greater than 0.4 wt % % of the composition and the polymer having an aqueous clarity at 1 wt % of less than 60% light transmittance at a wavelength between 500-600 nm and clarity greater than 85-90% light transmittance at a wavelength of between 500-600 nm, in a surfactant system, when the nonionic, anionic, amphoteric or cationic polysaccharide polymer is present at a concentration of up to 0.2% by weight of the composition.

"This invention is further directed to a process for preparing the composition mentioned above including the steps of reacting at least one polysaccharide, especially a galactomannan polymer or derivatized galactomannan polymer in the presence of at least one surfactant and an oxidizing agent, biochemical agents such as hydrolytic or proteolytic enzymes, acids, bases, or other agents that reduce the molecular weight of the polysaccharide or galactomannan polymer, associated protein, or other polysaccharide components, to produce the polysaccharide composition of the invention, or derivatized polysaccharide of the invention containing anionic, nonionic, or cationic, or amphoteric moieties, or combinations thereof.

"This invention is further directed to a composition of a functional system of personal care products, household care products, and pet care products containing the above mentioned polysaccharide, or derivatized polysaccharide, especially a cationic or nonionic polygalactomannan or derivatized cationic or nonionic polygalactomannan composition. A second component of the composition is a phosphate ester surfactant or surfactant blend which includes a phosphate ester. An optional component is a compatible solvent which may also be used in the functional composition that can be either a single solvent or a blend of solvents, and optionally at least one active personal care, household care, or pet care ingredient, respectively.

"This invention is further directed to a composition of a functional system of personal care products, household care products, and pet care products, especially surfactant compositions that contain the above mentioned polysaccharide, derivatized polysaccharide, galactomannan polymer, or derivatized galactomannan polymer, a phosphate ester surfactant or surfactant mixture which includes a phosphate ester, and optionally a synthetic polymer that increases deposition of the derivatized polysaccharide or polygalactomannan polymer and any disperse phase components in the composition.

"The use of the polymer compositions of the invention is also contemplated in other formulated products where surfactant compositions are used such as oilfield, mining, coating, pharmaceutical, and constructions, fire retardant, under water explosive applications."

URL and more information on this patent, see: Chan, Anita N.; Dziuk, Jr., Louis Patrick; Erazo-Majewicz, Paquita; Modi, Jashawant J.; Michelson, M. Olaf; Fillipo, Bruce Kevin; Naouli, Nabil. Polysaccharide Products with Improved Performance and Clarity in Phosphate Ester Surfactant-Based Aqueous Formulations and Process for Preparation. U.S. Patent Number 9561166, filed February 20, 2012, and published online on February 7, 2017. Patent URL: United States Patent: 9561166

Keywords for this news article include: Anions, Chemicals, Phosphates, Phosphoric Acids, Quaternary Ammonium, HERCULES INCORPORATED.

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Obesity, Fitness & Wellness Week. (Feb. 25, 2017): p6321.

Copyright: COPYRIGHT 2017 NewsRX LLC

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Source Citation (MLA 8

th

Edition)：

"Patent Issued for Polysaccharide Products with Improved Performance and Clarity in Phosphate Ester Surfactant-Based Aqueous Formulations and Process for Preparation (USPTO 9561166)." Obesity, Fitness & Wellness Week, 25 Feb. 2017, p. 6321. Academic OneFile, http://go.galegroup.com/ps/i.do?p=AONE&sw=w&u=s8405248&v=2.1&id=GALE%7CA481743631&it=r&asid=c9e02bffede3901f8e1f51b373910029. Accessed 1 May 2017.
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