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JP6141870B2 |
Polymer foam is made from a two-component foam system. The foam system includes an A-side component which contains a multifunctional Michael acceptor and a blowing agent that has a boiling temperature in the range −40° C. to +100° C....
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JP2017061644A |
To provide a guide member having high abrasion resistance under presence of a foreign substance.A resin guide member includes a rib part. In the resin guide member, a strain amount c(%) is obtained after conducting loading of 75 MPa and ...
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JP6105305B2 |
Provided is a polyacetal resin composition that can meet the demands for high level and varied mechanical properties that are required in accordance with the expansion of the field of use for polyacetal resin. The polyacetal resin comp...
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JP6104465B2 |
The patent application relates to a process for preparing polyoxymethylene by polymerization of a reaction mixture (RG) which comprises at least one formaldehyde source and at least one initiator mixture (IG), wherein the initiator mixtu...
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JPWO2015008537A1 |
Provided is a method for continuously producing an oxymethylene copolymer having improved thermal stability and formaldehyde generation with a high polymerization yield while maintaining MD resistance and folding resistance. A monomer ra...
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JPWO2014189139A1 |
Provided is a method for producing an oxymethylene copolymer having excellent extrusion moldability and reduced voids in a molded product without deteriorating the original performance of the oxymethylene copolymer. A monomer raw materia...
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JPWO2014196385A1 |
Provided is a method for continuously producing an oxymethylene copolymer having improved thermal stability and formaldehyde generation with a high polymerization yield while maintaining toughness and rigidity. A monomer raw material con...
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JP6076096B2 |
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JP2017002178A |
To provide a production method capable of stably, continuously producing an oxymethylene copolymer at a high yield and having a high molecular weight by a melt polymerization method.A polymerization reaction raw material liquid obtained ...
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JP2016204486A |
To provide a technique which allows for with high productivity, production of a polyoxymethylene resin molded article having excellent appearance quality while maintaining high mechanical strength and durability.A polyoxymethylene resin ...
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JP6040115B2 |
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JP6037799B2 |
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JP6034572B2 |
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JP6034571B2 |
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JP6024749B2 |
The present invention is directed to a method for producing an oxymethylene copolymer by subjecting trioxane and 1,3-dioxolane to copolymerization using boron trifluoride or a coordination compound thereof as a catalyst, wherein the copo...
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JP6022993B2 |
The present invention provides a high-quality polyacetal copolymer by means of a simple process and in an economical manner. The present invention includes: a raw material supply step of supplying a raw material including trioxane or the...
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JP5996863B2 |
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JP5959277B2 |
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JP2016521788A |
The present invention is a method for producing a polyether carbonate-polyoxymethylene block copolymer, which comprises a step of polymerizing formaldehyde, in the presence of a polyether carbonate having at least one Zerewitinoff-active...
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JP5955424B1 |
[Subject] The polyacetal resin constituent which stopped the amount of formaldehyde generations low is provided having high rigidity and high toughness. [Means for Solution] as the rate of a manufacturing method of the present invention ...
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JP2016516123A |
The present invention relates to the method for manufacturing the polyoxymethylene copolymer and these which have medium molecular weight, and the method of using these. The present invention relates to the method of using these, and the...
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JP2016094627A |
To provide a polyoxymethylene resin composition that can sufficiently suppress a generation amount of formaldehyde during molding without performing stabilization treatment for stabilizing an unstable terminal group of a crude oxymethyle...
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JP2016089069A |
To provide a polyacetal resin pellet less in eluted formaldehyde amount, reducing formaldehyde release amount from a molded body molded by using the polyacetal resin pellet and further excellent in mold deposit (MD) property.There is pro...
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JP5908775B2 |
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JP5878279B2 |
Initiator for cationic polymerization comprises a protic acid and a salt of a protic acid. An independent claim is also included for cationic polymerization of monomers using an initiator as above, where polymerization is effected 60-180...
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JP5876696B2 |
To provide a polyketone porous membrane having heat resistance and chemical resistance and useful as a filtration filter having high collection efficiency of, for example, impurities or as a separator for a battery or a capacitor having ...
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JP5860388B2 |
Provided is a production method for a polyacetal copolymer that makes deactivation of a catalyst simple and efficient and that achieves a high polymerization yield and high quality using equipment that does not require a cleaning step an...
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JP5841914B2 |
To provide a polyacetal resin composition and a molded article of the same, having electrostatic diffusivity and little separation of conductive fillers when sliding with other materials.Provided is a polyacetal resin composition contain...
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JP2016500403A |
The present invention is a method for producing a functionalized polyoxymethylene block copolymer comprising the step of polymerizing formaldehyde in the presence of a catalyst in a reaction vessel, wherein the polymerization of formalde...
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JP5829569B2 |
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JP5829718B2 |
A process for producing a polyacetal copolymer, the process making catalyst deactivation easy and efficient, requiring no cleaning step, merely requiring simple equipment and simple operation techniques, and rendering a high polymerizati...
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JP2015209456A |
To provide a polyacetal copolymer low in the melting point, long in crystallization time and high in thermostability.There is provided a polyacetal copolymer obtained by copolymerizing 100 mol of trioxane, 0.001 to 30 mol (inclusive) of ...
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JP5814414B2 |
The purpose of the present invention is to provide a high-quality polyacetal copolymer economically advantageously by a simple process. The present invention comprises: a raw material supply step (S1) of supplying a raw material comprisi...
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JP5806578B2 |
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JP5766036B2 |
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JP5766037B2 |
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JP5741284B2 |
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JP5730624B2 |
To provide a polyoxymethylene resin composition containing a polyoxymethylene resin, and being imparted with excellent impact resistance and damping performance, and further with excellent oil resistance and weld property; and to provide...
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JP5709060B2 |
Oxymethylene polymers having a bimodal distribution or having a distribution of higher modality and having a targeted content of a low molecular weight fraction of from 1 to 5 percent by mass are described. Moldings of these polymers are...
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JP2015509555A |
To provide a method for producing a PGA or a copolymer of PGA and a PGA copolymer. A method for producing polyglycolic acid (PGA) made from carbon monoxide, which is a C1 raw material, and formaldehyde or an equivalent thereof. By contro...
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JP5685940B2 |
The object is to provide a polyacetal resin composition which is improved in the creep resistance, mold releasability and thermal resistance without impairing advantageous properties of polyacetal resins such as a high rigidity and an ex...
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JP5681605B2 |
The invention provides water-soluble compounds that include a polymer and at least one terminal azide or acetylene moiety. Also provided are highly efficient methods for the selective modification of proteins with PEG derivatives, which ...
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JP2015505575A |
The present invention relates to a thermoplastic material containing a mixture of polyoxymethylene homo- or-copolymers, its production, use of the thermoplastic material for producing a metal or ceramic molded article, and the molded art...
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JP2015028185A |
To provide an oxymethylene copolymer and use of the same.There is provided an oxymethylene copolymer containing an oxymethylene unit, an oxyalkylene unit having at least two carbon atoms, a terminal alkyl ether group and a portion of a t...
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JP5664868B2 |
Oxymethylene copolymers having a high proportion of terminal alkyl ether groups and having terminal hydroxyalkylene groups are described. These polymers are distinguished by high thermal stability and high hot water resistance. Furthermo...
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JP2015013936A |
To produce an alternating copolymer of carbon monoxide and aldehyde composed of a repeated structure of a glycolic acid derivative obtained by alternating copolymerization of carbon monoxide and formaldehyde without requiring complicated...
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JP5648477B2 |
The present invention provides a polyacetal resin which has excellent spinnability and excellent moldability with little optical unevenness when it is molded into a film or a sheet. The present invention provides a polyacetal resin in wh...
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JP2014208828A |
To provide an extremely efficient method for selectively modifying a protein with a water-soluble polymer derivative.The provided water-soluble compound includes an azide or acetylene segment as at least one terminal of a water-soluble c...
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JP5612262B2 |
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JP5594483B2 |
Process for the preparation of oxymethylene polymers and apparatus suitable for this purpose A process and an apparatus for the preparation of oxymethylene polymers is described. The process encompasses the polymerization of a monomer th...
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