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5504229 Synthesis of aliphatic C2-C22 carboxylic acids
PatentsALERT
A biodegradable wreath ring provides the central framework for constructing a decorative wreath from plant tips and decorative materials secured to the wreath ring. The wreath ring is of generally circular configuration with specified diameter and is constructed from multiple layers of strips of paper laminated one over another in the radial direction of the ring and bonded together preferably using a biodegradable resin or adhesive material. The wreath ring is of generally cylindrical configuration having a cylinder radial thickness and a cylinder height thickness. The ring is constructed with a sufficient number of layers of paper in the radial direction and with sufficient cylinder radial thickness and height thickness to provide the required structural strength to support a constructed wreath of decorative material having the selected diameter. The wreath ring is biodegradable for recycling fiber, cornposting, chipping or combustion along with a wreath constructed on the wreath ring after the wreath has served its decorative purpose. The ring is preferably a cylindrical slice, cut with specified cylinder height thickness from a laminated paper tube having a specified cylinder radial thickness and selected number of layers of laminated paper in the radial direction of the tube.
5503964 RESIST REMOVING METHOD
This resist removing method realizes efficient production of semiconductor devices and is configured to ensure both safe production and reliable semiconductor devices. The present invention can be applied to a resist removing method used in combination with a high dose of ions injection process of applying a high dose of impurity ions to a semiconductor wafer onto which surface a far-ultraviolet-ray hardened resist is partially applied. That is, the present invention comprises a resist hardening step of evenly hardening the resist by treating it in a far-ultraviolet-ray irradiation process and a baking process before a high dose of ions injection process. Additionally, it comprises a resist ashing step of removing the resist by forcing the resist to react under the pressure of 2 through 5 Torr to 02 plasma excited by a microwave after the high dose of ions injection process.
5504229 SYNTHESIS OF ALIPHATIC C2-C22 CARBOXYLIC ACIDS Fisher Karl; Fritz Gerhard Hohen Suelzen, GERMANY assigned to BASF Aktiengesellschaft
J. Cleaner Prod. Volume 4, Number
5504238 METHOD FOR MAKING DIARYL CARBONATE Colbom Robert E Schenectady, NY, UNITED STATES assigned to General Electric Company Diary1 carbonate is prepared by hydrolysis of a tetraaryl orthocarbonate in the presence of an acid catalyst. The tetraaryl orthocarbonate is synthesized by a reaction between carbon disulfide and a cuprous phenate;the cuprous phenate can be made from cuprous chloride and the corresponding alkali metal phenate. The process may be integrated with recycle of by-products.
5504247
Nishina Tatsushi; Maeda Takafumi; Hasebe Shin Kariya, JAPAN assigned to Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
132
Synthesis of aliphatic C2-C22 carboxylic acids by oxidation of relevant aldehydes with oxygen in the presence of alkali metal compounds or alkaline earth metal compounds in the liquid phase and separation of the reaction mixture by distillation, in which the bottom product formed during distillation and containing an alkali metal salt or alkaline earth metal salt is recycled to the oxidation stage.
2
METHOD AND APPARATUS FOR PURIFYING ACRYLIC ACID, AND ACRYLIC ACID PURIFIED BY THE METHOD Buchs, SWITZERLAND Saxer Kurt; Stadler Ralp assigned to Sulzer Chemtech AG A method of purifying acrylic acid by fractional crystallization is provided. The method includes the steps of subjecting an acrylic acid containing mixture to a dynamic crystallization stage to recover purified acrylic acid, leaving a residue containing acrylic acid; subjecting the residue to a static crystallization stage to recover an acrylic acid enriched fraction; and recycling the acrylic acid enriched fraction to the dynamic crystallization stage for recovery of purified acrylic acid.
5504257 PROCESS FOR PRODUCING DIISOPROPYL ETHER WITH REMOVAL OF ACID MATERIAL Marker Terry L; Schmidt Robert; Marinageli Richard E; Brandvold Timothy A Warrenville, IL, UNITED STATES assigned to UOP
A biodegradable wreath ring provides the central framework for constructing a decorative wreath from plant tips and decorative materials secured to the wreath ring. The wreath ring is of generally circular configuration with specified diameter and is constructed from multiple layers of strips of paper laminated one over another in the radial direction of the ring and bonded together preferably using a biodegradable resin or adhesive material. The wreath ring is of generally cylindrical configuration having a cylinder radial thickness and a cylinder height thickness. The ring is constructed with a sufficient number of layers of paper in the radial direction and with sufficient cylinder radial thickness and height thickness to provide the required structural strength to support a constructed wreath of decorative material having the selected diameter. The wreath ring is biodegradable for recycling fiber, cornposting, chipping or combustion along with a wreath constructed on the wreath ring after the wreath has served its decorative purpose. The ring is preferably a cylindrical slice, cut with specified cylinder height thickness from a laminated paper tube having a specified cylinder radial thickness and selected number of layers of laminated paper in the radial direction of the tube.
5503964 RESIST REMOVING METHOD
This resist removing method realizes efficient production of semiconductor devices and is configured to ensure both safe production and reliable semiconductor devices. The present invention can be applied to a resist removing method used in combination with a high dose of ions injection process of applying a high dose of impurity ions to a semiconductor wafer onto which surface a far-ultraviolet-ray hardened resist is partially applied. That is, the present invention comprises a resist hardening step of evenly hardening the resist by treating it in a far-ultraviolet-ray irradiation process and a baking process before a high dose of ions injection process. Additionally, it comprises a resist ashing step of removing the resist by forcing the resist to react under the pressure of 2 through 5 Torr to 02 plasma excited by a microwave after the high dose of ions injection process.
5504229 SYNTHESIS OF ALIPHATIC C2-C22 CARBOXYLIC ACIDS Fisher Karl; Fritz Gerhard Hohen Suelzen, GERMANY assigned to BASF Aktiengesellschaft
J. Cleaner Prod. Volume 4, Number
5504238 METHOD FOR MAKING DIARYL CARBONATE Colbom Robert E Schenectady, NY, UNITED STATES assigned to General Electric Company Diary1 carbonate is prepared by hydrolysis of a tetraaryl orthocarbonate in the presence of an acid catalyst. The tetraaryl orthocarbonate is synthesized by a reaction between carbon disulfide and a cuprous phenate;the cuprous phenate can be made from cuprous chloride and the corresponding alkali metal phenate. The process may be integrated with recycle of by-products.
5504247
Nishina Tatsushi; Maeda Takafumi; Hasebe Shin Kariya, JAPAN assigned to Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
132
Synthesis of aliphatic C2-C22 carboxylic acids by oxidation of relevant aldehydes with oxygen in the presence of alkali metal compounds or alkaline earth metal compounds in the liquid phase and separation of the reaction mixture by distillation, in which the bottom product formed during distillation and containing an alkali metal salt or alkaline earth metal salt is recycled to the oxidation stage.
2
METHOD AND APPARATUS FOR PURIFYING ACRYLIC ACID, AND ACRYLIC ACID PURIFIED BY THE METHOD Buchs, SWITZERLAND Saxer Kurt; Stadler Ralp assigned to Sulzer Chemtech AG A method of purifying acrylic acid by fractional crystallization is provided. The method includes the steps of subjecting an acrylic acid containing mixture to a dynamic crystallization stage to recover purified acrylic acid, leaving a residue containing acrylic acid; subjecting the residue to a static crystallization stage to recover an acrylic acid enriched fraction; and recycling the acrylic acid enriched fraction to the dynamic crystallization stage for recovery of purified acrylic acid.
5504257 PROCESS FOR PRODUCING DIISOPROPYL ETHER WITH REMOVAL OF ACID MATERIAL Marker Terry L; Schmidt Robert; Marinageli Richard E; Brandvold Timothy A Warrenville, IL, UNITED STATES assigned to UOP