Abstract: An emulsifier for use in making PIT or microemulsions is comprised of (a) from 45 to 60% by weight of a partial glyceride, (b) from 5 to 25% by weight of an alcohol polyglycol ether, (C) from 5 to 15% by weight fatty alcohol, and (d) from 0 to 15% by weight of a wax ester wherein the monoglyceride content of the partial glyceride is less than 50% by weight and wherein the monoglyceride is comprised of palmitic and stearic acid residues in a ratio by weight of from 40:60 to 60:40. Emulsions containing these emulsifiers neither gel nor crystallize in storage.
Type:
Grant
Filed:
May 15, 2001
Date of Patent:
August 9, 2005
Assignee:
Cognis Deutschland GmbH & Co. KG
Inventors:
Achim Ansmann, Stefan Bruening, Marco Capito
Abstract: Efficient processes have been developed for the cost effective functionalization of polyhedral oligomeric silsesquioxane-silanols (POSS-Silanols) and for the manufacture of polyfunctional polyhedral oligomeric silsesquioxanes. The processes utilize the action of bases or acids on silane coupling agents. The preferred process utilizes base to promote the silylation of POSS-Silanols of the formula [(RSiO1.5)n(R(HO)SiO1.0)m]?# with silane coupling agents to form POSS species with functionalized incompletely condensed nanostructures [(RSiO1.5)n(R(YSiR2O)SiO1.0)m]?# or functionalized completely condensed nanostructures [(RSiO1.5)n(YSiO1.5)1]?#. The process can alternately be conducted with acids. A second process utilizes base to alkylate POSS-Silanols with functionalized alkyl halides. A third related process utilizes base to react with silane coupling agents to form polyfunctional, fully condensed POSS species of formula [(YSiO1.5)n]?#. This process can also alternately be conducted under acidic conditions.
Type:
Grant
Filed:
June 27, 2002
Date of Patent:
August 9, 2005
Assignee:
Hybrid Plastics LLP
Inventors:
Joseph D. Lichtenhan, Joseph J. Schwab, Yi-Zhong An, Qibo Liu, Timothy S. Haddad
Abstract: A lithographic printing plate precursor comprising a support having provided thereon a hydrophilic layer which is converted to hydrophobic by heating, wherein the hydrophilic layer contains (1) an organic and inorganic composite having a crosslinking structure obtained by hydrolysis and poly-condensation on condition of coexistence of a metal complex compound and an organic hydrophilic resin, and (2) core-shell structural fine particles containing a resin core having a functional group capable of interacting with the organic and inorganic composite and a resin shell not substantially having a functional group capable of interacting with the organic and inorganic composite.
Abstract: The present invention relates to a substrate for attachment of biomolecules. The substrate is coated with a multiamino organosilane. If desired, the substrate can be further modified prior to coating with a multiamino organosilane. Optional surface modifications include coating the substrate with SiO2 or leaching with acid to form a SiO2 rich layer. DNA, nucleic acids, or any bimolecules can be attached to the coated substrates of the invention. Although a variety of substrates are contemplated, the preferred substrate is a low self-fluorescent glass.
Type:
Grant
Filed:
September 7, 2001
Date of Patent:
July 12, 2005
Assignee:
Penn State Research Foundation
Inventors:
Carlo G. Pantano, Ezz Metwalli, Samuel Conzone, Dan Haines
Abstract: Processes have been developed for the manufacture of polyhedral oligomeric silsesquioxanes (POSS), polysilsesquioxanes, polyhedral oligomeric silicates (POS), and siloxane molecules bearing reactive ring-strained cyclic olefins (e.g. norbornenyl, cyclopentenyl, etc. functionalities). The preferred manufacturing processes employ the silation of siloxides (Si—OA, where A=H, alkaline or alkaline earth metals) with silane reagents that contain at least one reactive ring-strained cyclic olefin functionality [e.g., X3-ySi(CH3)y(CH2)2 where y=1-2 and X=OH, Cl, Br, I, alkoxide OR, acetate OOCR, peroxide OOR, amine NR2, isocyanate NCO, and R]. Alternatively, similar products can be prepared through hydrosilation reactions between silanes containing at least one silicon-hydrogen bond (Si—H) with ring-strained cyclic olefin reagents [e.g., 5-vinyl, 2 norbornene CH2?CH, cyclopentadiene]. The two processes can be effectively practiced using polymeric silsesquioxanes [RSiO1.
Type:
Grant
Filed:
December 21, 2000
Date of Patent:
June 28, 2005
Assignee:
Hybrid Plastics, LLC
Inventors:
Joseph D. Lichtenhan, Joseph J. Schwab, Yi-Zong An, William Reinerth, Frank J. Feher
Abstract: The rubber compounds according to the present invention are based on uncrosslinked rubbers, crosslinked rubber particles together with multifunctional isocyanates and polyols. These rubber compounds can be used for the manufacture of rubber vulcanizates or any type of molded rubber article, whereby the vulcanizates display good mechanical properties combined with a large difference in impact resilience values at 70° C. and 23° C.
Abstract: The invention is drawn to silane copolymers prepared from the reaction of one or more polyisocyanates with one or more lubricious polymers having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and with one or more organo-functional silanes having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and at least one functional group reactive with a silicone rubber substrate. The silane copolymer coatings of the invention are elastic, lubricious, and resist wet abrasion. They are useful as coatings for polysiloxane (rubber) and other difficult to coat substrates, especially for medical devices, such catheters.
Abstract: Environmentally degradable melt spun fibers comprising a polyhydroxyalkanoate copolymer and a polylactic acid polymer or copolymer are disclosed. A preferred configuration of the present invention is directed to environmentally degradable fibers comprising a sheath/core structure where the core comprises a biodegradable polyhydroxyalkanoate copolymer and the sheath comprises a polymer or copolymer of polylactic acid. Nonwoven webs and disposable articles comprising the environmentally degradable fibers are also disclosed.
Type:
Grant
Filed:
January 17, 2002
Date of Patent:
June 14, 2005
Assignee:
The Procter & Gamble Company
Inventors:
Isao Noda, Eric Bryan Bond, David Harry Melik
Abstract: The present invention relates to compositions comprising reaction products of a polyisocyanate with a polyester block copolymer and a process for the preparation thereof. These are suitable as a moisture-curing hot melt adhesive. The hot melt adhesive composition may optionally also comprise a reaction product of a polyisocyanate with a polyester polyol and/or a reaction product of a polyisocyanate with a polyether polyol. Such polyurethane hot melt adhesive compositions have good creep resistance and interfacial adhesion values on plastics and show very high strength values.
Type:
Grant
Filed:
May 30, 2001
Date of Patent:
June 14, 2005
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Michael Krebs, Christoph Lohr, Andreas Brenger, Ingolf Scheffler
Abstract: This invention relates to dendritically modified polyurethane, to a process for preparing the dendritically modified polyurethane and to uses thereof.
Type:
Grant
Filed:
January 27, 2003
Date of Patent:
May 24, 2005
Assignee:
Shenkar College of Engineering and Design
Abstract: A coil coating composition producing a coil coating with excellent properties at a lower peak metal temperature includes (a) a first, branched polyester prepared by condensation of a polyol component consisting essentially of a flexibilizing diol, 2-methyl-1,3-propanediol, and a polyol having at least three hydroxyl groups and an acid component consisting essentially of isophthalic acid; (b) a second, essentially linear polyester prepared by condensation of a polyol component consisting essentially of a flexibilizing diol and 2-methyl-1,3-propanediol and an acid component consisting essentially of isophthalic acid; and (c) a crosslinking agent.
Type:
Grant
Filed:
October 29, 2002
Date of Patent:
May 24, 2005
Assignee:
BASF Corporation
Inventors:
Donald J. Algrim, Daniel Calimente, Andrew Dell, David E. Lindow
Abstract: Adhesive blend compositions having significantly improved adhesion to metals at elevated temperatures are provided. The compositions are blends of one or more polyolefin base resins, an acid or acid derivative modified polyolefin and silane modified polyolefin. A low level of adhesion promotor is optionally included in the blend.
Abstract: A solid composition having a solid state film forming substance mixed with an inert carrier. The composition is heated in a vacuum chamber to evaporate the film forming substance by sublimation to form a molecular beam of amphiphilic molecules which settle on a substrate surface within the chamber and bond thereto while self-assembling into a thin film.
Abstract: The invention discloses an efficient method for removing a wallpaper sheet by peeling off a wall body surface to which the wallpaper sheet is adhesively bonded as well as a wallpaper remover solution used in the method for wetting the wallpaper sheet to facilitate peeling. The remover solution contains, as the essential ingredients, (A) a silicone-based surface active agent which is an organopolysiloxane modified with polyoxyalkylene or polyhydric alcohol residues and (B) a moisturizing agent which is typically a polyhydric alcohol or a alkoxyalkanol compound each in a specified concentration of 40-80% by weight, the balance being water as the solvent.
Abstract: The present invention relates generally to conductive, silicone-based compositions, with improved initial adhesion and reduced micro-voiding. More specifically, the present invention relates to a conductive, silicone-based composition, which includes a polyorganosiloxane, a silicone resin, and a conductive filler component.
Abstract: Disclosed are compounds according to formula (I), wherein R? and R? are selected from the group consisting of R?=SiR1R2R3 and R?=H; R?=SiR1R2R3 and R?=SiR4R5R6; and R?=Ar1SiR1R2R3 and R?=Ar2SiR4R5R6; R1, R2, R3, R4, R5, and R6 are independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, cycloalkyl, cycloalkenyl, cycloalkynyl, arylalkyl, arylalkenyl, and arylalkynyl; Ar1 and Ar2 are independently selected from the group consisting of arylene, arylenealkylene, arylenealkynylene, heteroarylene, heteroarylenealkylene, heteroarylenealkenylene and heteroarylenealkylene; and n is at least 20. Such compounds may be used as an emissive layer in a polymer light-emitting diode (PLED), which itself may be used in electroluminescent devices.
Type:
Grant
Filed:
June 18, 2002
Date of Patent:
April 26, 2005
Assignees:
Agency for Science, Technology and Research, National University of Singapore
Abstract: A curable resin composition including a poly(arylene ether), an allylic monomer, and an acryloyl monomer may be formulated as a powder. The resin composition exhibits improved toughness, and it is useful in thermoset processing applications where use of powdered resins is preferred.
Type:
Grant
Filed:
March 27, 2001
Date of Patent:
April 12, 2005
Assignee:
General Electric
Inventors:
Kenneth Paul Zarnoch, Gary William Yeager, Hua Guo
Abstract: The present invention provides a process, which includes: a) suspending: at least one filler selected from the group including silicatic filler, oxidic filler, and a mixture thereof, 0.5 to 7% by weight, based on the weight of the filler, of at least one polysiloxane hydrophobicizing agent, and 0.1 to 2% by weight, based on the weight of the filler, of at least one non-ionic surfactant, in water at a temperature of 10 to 60° C., to prepare a suspension having a solids content of 0.5 to 15% by weight, based on the weight of the suspension; b) contacting a rubber latex emulsion and the suspension, to prepare a mixture; c) contacting the mixture with at least one acid to lower the pH of the mixture to 2.
Abstract: A room temperature curable organopolysiloxane composition comprising (A) an organopolysiloxane having organooxysilyl groups on side chains or on side chains and ends of the polymer, (B) fumed silica, (C) an organooxysilane or a partial hydrolytic condensate thereof, and (D) a condensation catalyst is improved in stability during storage under sealed conditions and cures into an elastomeric product whose physical properties change little even when used under rigorous conditions as encountered in proximity to automotive engines.