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WO/2024/081174A1 |
The present disclosure relates to methods for protecting semiconductor substrate surfaces by coating the surfaces with a stimulus responsive polymer layer, the stimulus responsive polymer layer composed of copolymers with oxymethylene-co...
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WO/2024/076521A1 |
A polyoxymethylene polymer composition is disclosed containing a formaldehyde stabilizer package. The formaldehyde stabilizer package contains, in one embodiment, a substituted hydantoin that has been found to dramatically reduce formald...
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WO/2023/243658A1 |
The present invention provides: a polyacetal resin composition; a metal resin composition; and a method for producing a polyacetal resin composition. The present invention provides a polyacetal resin composition which contains 100 parts ...
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WO/2023/231990A1 |
Disclosed in the present invention are a polyoxymethylene nanosheet or a polyoxymethylene copolymer nanosheet and a preparation method therefor. The preparation method comprises the following steps: (1) mixing a surfactant and a monomer ...
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WO/2023/194883A1 |
Degradable copolymers may include polyethers, polyesters, and polycarbonates. Forming a degradable copolymer includes contacting o-phthalaldehyde (oPA) with a first monomer in the presence of an activator and an organic Lewis base or an ...
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WO/2023/180786A1 |
The invention relates to a method of manufacture of a thermoset polymer foam that is at least from 50 to 100 percent by weight of renewable raw material resources and to the foam obtained by the method. Foam is obtained from a two-compon...
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WO/2023/171315A1 |
The purpose of the present invention is to provide a method for producing a polyacetal copolymer, wherein molded products made of the polyacetal copolymer have good appearance and there is less variation between the products. The purpo...
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WO/2023/171316A1 |
The purpose of the present invention is to provide a polyacetal copolymer and a method for polymerizing same, the polyacetal copolymer having excellent production stability and thermal stability, such as in terms of formaldehyde generati...
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WO/2023/136298A1 |
The present invention provides: a polyacetal resin composition that achieves a highly dispersed state of cellulose in a polyacetal resin, and that achieves, at a high level, both high temperature rigidity and toughness when being under a...
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WO/2023/136005A1 |
This method for producing a polyacetal polymer includes: a step (A) for homopolymerizing trioxane; or a step (B) for copolymerizing a primary monomer, which is trioxane, and a comonomer, which is a compound copolymerizable with the triox...
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WO/2023/136006A1 |
Provided is a method for producing a polyacetal polymer, said method comprising (A) a step for polymerizing trioxane alone, or (B) a step for copolymerizing trioxane as the main monomer and a compound that can copolymerize with trioxane ...
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WO/2023/090195A1 |
Provided are: a powdery material for 3D printers which is capable of producing three-dimensional shaped objects having an excellent appearance and having a high density and high strength; a three-dimensional shaped object obtained from t...
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WO/2023/026907A1 |
Provided is a method for producing an oxymethylene copolymer having good physical properties. A method for producing an oxymethylene copolymer including the copolymerization of a trioxane and a monomer capable of copolymerizing with th...
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WO/2023/017741A1 |
The purpose of the present invention is to provide a new polyacetal resin production method that enables provision of various modified polyacetal resins by facilitating modification of a polyacetal resin. [Solution] Said purpose of the p...
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WO/2023/003687A1 |
A substance may include polymers that include reagent end-capped poly(acetal)s, where a differential scanning calorimetry process exhibits no endothermic peaks for monomers for a first heat cycle of a heat-cool process applied to the rea...
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WO/2023/002839A1 |
The purpose of the present invention is to provide a composition which contains a modified polyacetal and is suitable for inorganic powder injection molding. A composition for inorganic powder injection molding according to the present i...
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WO/2023/276481A1 |
Provided is a polyacetal resin gear comprising a polyacetal resin or a resin composition containing a polyacetal resin. The polyacetal resin is obtained by copolymerizing trioxane (A), a cyclic acetal compound (B) and an aliphatic glycid...
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WO/2023/275849A1 |
Layered constructions, such as those used in pressure sensitive adhesive constructions and release liner constructions, are disclosed having a functional layer that is capable of removal. Methods of utilizing the layered constructions ar...
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WO/2022/270184A1 |
A polyacetal resin composition which contains, per 100 parts by mass of (A) a linear polyacetal copolymer that has a specific MFR and is mainly composed of an oxymethylene unit, while containing an oxyalkylene unit that serves as a comon...
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WO/2022/264736A1 |
Provided is a method for producing a polyacetal copolymer having trioxane as a main monomer (a) and a cyclic formal compound having at least one carbon-carbon bond as a comonomer (b), the production method comprising: a step A in which a...
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WO/2022/258570A1 |
The present invention describes a process for producing a polyoxymethylene-polyoxyalkylene copolymer, comprising reacting a polymeric formaldehyde compound with an alkylene oxide in the presence of a double metal cyanide (DMC) catalyst, ...
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WO/2022/253406A1 |
The invention relates to 1,3 dioxolane copolymers of the general formula (I) H- [O-CH2-O-CH2-CH2-]x1 [O-CH2-CH2O-CH2-]x2 [O-CH2-O-CHR1-CHR2-]y1 [O-CHR1-CHR2O-CH2-]y2 OR3 (I), in which x1+x2 represents values of 10 to 2000, R1 and R2 repr...
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WO/2022/215472A1 |
The purpose of the present invention is to provide a composition for a sintered compact: in which shape retention properties of a green compact based on rigidity provided by a polyacetal resin are not sacrificed; which has high fluidity;...
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WO/2022/215473A1 |
The present invention provides a molded body which is able to be suppressed in plastic deformation during the transportation. A molded body according to the present invention contains a sinterable inorganic powder and an organic binder, ...
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WO/2022/202094A1 |
Provided is a production method for a polyacetal resin composition containing prescribed amounts of each of: (B) a prescribed modified olefin polymer, (C) a prescribed alkylene glycol polymer, (D) a prescribed calcium carbonate, (E) a pa...
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WO/2022/137859A1 |
A method for producing a polyacetal copolymer comprises a step for copolymerizing 100 parts by mass of trioxane (A), 0.05-5 parts by mass of a cyclic acetal compound (B) that has an oxyalkylene group having at least 2 carbon atoms in the...
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WO/2022/128748A1 |
The invention relates to a process for producing a monol or polyol comprising a polyoxymethylene block as well as to monols or polyols obtainable by such a process. The invention further relates to a process for producing a prepolymer, a...
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WO/2022/085280A1 |
The purpose of the present invention is to provide a method for producing a polyacetal copolymer that improves the appearance of molded articles made from a polyacetal copolymer and achieves minimal variations between products, without m...
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WO/2022/075004A1 |
Provided is a polyacetal resin composition obtained by blending 100 parts by mass of (A) a polyacetal copolymer having a terminal hemiformal group amount of 0.8 mmol/kg or less with: 0.5-30 parts by mass of (B) an antioxidant; more than ...
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WO/2022/064924A1 |
Provided is a production method for a polyacetal copolymer including a step for copolymerizing 100 mass% of trioxan (A), 0.05-5 mass% of a cyclic acetal compound (B), and 0.001-1 mass% of an aliphatic glycidyl ether compound (C) with a c...
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WO/2022/033008A1 |
A preparation process for preparing a polyoxymethylene dimethyl ether (PODE) by using methanol as a raw material, comprising using methanol and methylal as raw materials for catalytic oxidation to prepare concentrated formaldehyde having...
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WO/2022/036163A1 |
The present disclosure is directed to a process for producing a polyoxymethylene polymer or paraformaldehyde in an environmentally friendly and sustainable manner. The polyoxymethylene polymer or paraformaldehyde can be produced so as to...
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WO/2021/249905A1 |
The present invention relates to a process for producing a polyoxymethylene-polyoxyalkylene copolymer, comprising reacting a polymer formaldehyde compound of an alkylene oxide and a specific component (X) in the presence of a double meta...
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WO/2021/251189A1 |
This method, which is for producing an oxymethylene copolymer resin composition with a suppressed odor of a molded body and by which a resin composition containing an oxymethylene copolymer having a high degree of polymerization can be p...
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WO/2021/204789A2 |
The present invention relates to a process for recycling polyacetal having from 8 to 100 000 carbon atoms for obtaining a produced polyoxymethylene dialkyl ether of formula R-(OCH2)n-OR', in which R and R' independently represent a methy...
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WO/2021/163025A1 |
This invention relates to a method for synthesizing polyoxymethylene on a substrate. The method includes depositing a monomer capable of forming polyoxymethylene by an initiated polymerization reaction and an initiator, via initiated che...
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WO/2021/151160A1 |
A process for preparation of a biologically active polymer comprising an acrolein derived segment and a polyalkylene glycol oligomer, the process comprising reacting polyalkylene glycol with acrolein in aqueous solution to form a copolym...
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WO/2021/122402A1 |
The present invention relates to a method for producing a polyoxymethylene polyoxyalkylene copolymer, comprising reacting a polymer formaldehyde compound with an alkylene oxide in the presence of a double metal cyanide (DMC) catalyst, wh...
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WO/2021/039003A1 |
The purpose of the present invention is to improve the mechanical strength of a polyacetal resin, in particular, the tensile strength and the bending strength. The purpose of the present invention is achieved by a polyacetal resin comp...
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WO/2020/261712A1 |
The purpose of the present invention is to provide a polyacetal resin composition having improved levels of mechanical properties. The polyacetal resin composition is obtained by mixing, with respect to 100 parts by mass of a polyaceta...
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WO/2020/261693A1 |
The purpose of the present invention is to provide: a polyacetal resin composition that has excellent weather resistance, that can be used to form a molded article inhibiting the occurrence of formaldehyde to a very low level, and that h...
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WO/2020/255543A1 |
The purpose of the present invention is to provide a novel polyacetal copolymer excellent in terms of producibility and mechanical property due to the introduction of a group having a new structure and to provide a method for producing t...
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WO/2020/250945A1 |
A method for producing an oxymethylene polymer, said method being capable of highly efficiently producing an oxymethylene polymer with high polymerization degree, while suppressing the amount of generated odor, has been waited for. An ox...
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WO/2020/137414A1 |
The purpose of the present invention is to provide a polyacetal resin composition having an improved level of mechanical properties. The purpose of the present invention is achieved by a polyacetal resin composition that can be obtained ...
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WO/2020/137413A1 |
The objective of the present invention is to provide: a novel polyacetal copolymer having excellent productivity and mechanical properties by introducing a group having a new structure; and a method for producing the same. The objective ...
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WO/2020/114751A1 |
In a process for producing polyoxymethylene-polyalkylene oxide block copolymers comprising the step of polymerizing an alkylene oxide in the presence of an OH-terminated polyoxymethylene polymer and a catalyst, the polyoxymethylene polym...
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WO/2020/110641A1 |
The purpose of the present invention is to provide a polyacetal resin composition which has improved mechanical properties. The present invention has been achieved by a polyacetal resin composition which is obtained by mixing 0.1-100 p...
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WO/2020/104512A1 |
A process for producing polyoxymethylene polymers comprises the reaction of aqueous formaldehyde solution with an aqueous solution of a base, wherein A) a starter solution comprising formaldehyde is initially charged and B) an aqueous fo...
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WO/2020/099601A1 |
The invention relates to a process for preparing prepolymers that comprise a polyoxymethylene block. The invention also relates to prepolymers that can be obtained by said process and to mixtures of the prepolymers with OH-reactive compo...
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WO/2020/083814A1 |
The invention relates to a method for producing a polyoxymethylene polyoxyalkylene block copolymer, said method including the process of reacting a polymer formaldehyde compound with alkylene oxide in the presence of a double metal cyani...
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