131 results about "Saturated bonds" patented technology

A polymer electrolyte-forming composition containing (A) a quaternary ammonium salt of general formula (1) below and (B) an ionic liquid can be converted into a polymer without compromising the excellent properties of the ionic liquid, thus enabling an electrolyte having an excellent safety and electrical conductivity and also a broad potential window to be obtained.

In formula (1), R¹ to R³ are each independently an alkyl group of 1 to 5 carbons or a substituent having a reactive unsaturated bond and any two from among R¹ to R³ may together form a ring, and R⁴ is methyl, ethyl or a substituent having a reactive unsaturated bond, with the proviso that at least one of R¹ to R⁴ is a substituent having a reactive unsaturated bond. X is a monovalent anion, the letter m is an integer from 1 to 8, and the letter n is an integer from 1 to 4.

The present invention aims to provide a vinyl resin which, with a polyurethane resin, is capable of providing a film excellent in mechanical strength, weather resistance, solvent resistance, and water resistance. The vinyl resin (V1) of the present invention is obtainable by polymerizing monomer components including a monomer (X) represented by the formula (1):

wherein M¹ is a hydroxy group or a residue of an active hydrogen-containing organic compound having a valence of 1 to 20 from which c number of active hydrogen atoms are removed; c is 1 if M¹ is a hydroxy group, or c is an integer satisfying 1≦c≦(valence of M¹) if M¹ is a residue of an active hydrogen-containing organic compound having a valence of 1 to 20 from which c number of active hydrogen atoms are removed; R¹ is an ethylenic unsaturated bond-containing group, and when the formula (1) includes multiple R1's, they may be the same as or different from each other; M² is a hydroxy group or a residue of an active hydrogen-containing organic compound having a valence of 1 to 20 from which one active hydrogen atom is removed, and when the formula (1) includes multiple M²'s, they may be the same as or different from each other, and M² and M¹ may be the same as or different from each other; L is a residue of an aromatic polycarboxylic acid having 3 or more carboxyl groups from which all the carboxyl groups are removed, the aromatic ring of L is constituted by carbon atoms, and each of the carbon atoms may optionally have a halogen atom and/or a substituent which is not a carboxyl group, but at least one of the carbon atoms has a hydrogen atom; a and b are each an integer of 0 or greater and they satisfy 2≦(a+b)≦(d−2), when the formula (1) includes multiple a's, they may be the same as or different from each other and at least one of c number of a's is not 0, and when the formula (1) includes multiple b's, they may be the same as or different from each other; and d is the number of hydrogen atoms bonded to the carbon atoms constituting the aromatic ring assuming that all the substituents including the carboxyl groups of the aromatic polycarboxylic acid are replaced by hydrogen atoms, in other words, the number of moieties capable of being replaced by a substituent on the aromatic ring.

The present invention relates to a pressure-sensitive adhesive tape or sheet comprising: a viscoelastic layer containing bubbles and/or fine particles; and a pressure-sensitive adhesive layer formed on at least one side of the viscoelastic layer and formed from a pressure-sensitive adhesive composition comprising a monomer mixture comprising the following (a1), (a2) and (a3) or partially polymerized product thereof, and thermal-expandable fine particles:

• • (a1) alkyl (meth)acrylate monomer having 4 to 12 carbon atoms in its alkyl moiety and having a glass transition temperature when formed into a homopolymer of lower than 0° C.;
  • (a2) monomer having at least one nitrogen atom and one ethylenically unsaturated bond in its molecule; and
  • (a3) monomer having one ethylenically unsaturated bond in its molecule and having a glass transition temperature when formed into a homopolymer of 0° C. or higher (excluding (a2) above).

A laminate tube which comprises a layer made of a fluorocopolymer containing repeating units based on at least one fluoromonomer selected from the group consisting of tetrafluoroethylene and chlorotrifluoroethylene and repeating units based on at least one functional monomer selected from the group consisting of an acid anhydride having a polymerizable unsaturated bond and a dicarboxylic acid having a polymerizable unsaturated bond, and a layer made of a non-fluororesin directly laminated, and has a haze of from 0.1 to 30%. The laminate tube is excellent in transparency, excellent in interlaminar adhesion and anti-elution properties, excellent in liquid and gas barrier properties and applicable to transportation of a liquid such as a beverage and a coating composition.

A photosensitive element 1 comprising a support film 10 and a layer (photosensitive layer) 20 composed of a photosensitive resin composition formed on the support film 10, wherein the haze of the support film 10 is 0.01-2.0%, the total number of particles and aggregates with diameters of 5 μm or larger in the support film 10 is no greater than 5/mm², the photosensitive layer 20 contains (A) a binder polymer, (B) a photopolymerizing compound with an ethylenic unsaturated bond and (C) a photopolymerization initiator, and the thickness of the photosensitive layer 20 is 3-30 μm.

Compositae cyclopeptide compounds are monocyclic homogeneous pentapeptide compounds which contain beta-phenylalanine in skeleton and are formed by the directly connected normal peptide bonds of amino acids; and generally, one compositae cyclopeptide molecule contains one L-beta-phenylalanine molecule, one L-serine molecule, one L-proline derivative molecule and two other amino acid derivative molecules. The composite cyclopeptide shown in the structural formula AstinC (1) is a new immunosuppressive agent with plant source. The invention provides a preparation method of the compounds and an application of the compounds in the preparation of the immunosuppressive medicine. In the formula, R1 and R2 represent aryl or alkyl respectively; R3, R4 and R5 represent hydroxyl or halogen atom respectively; and X and Y represent unsaturated bond or saturated bond respectively.

An object of the present invention is to provide a transparent flexible composition which is excellent in transparency, and is also excellent in impact resistance and viscoelasticity. The transparent flexible composition of the present invention comprises 100 parts by mass of a thermoplastic elastomer component (A) comprising a hydrogenated block polymer by hydrogenating an olefinic unsaturated bond in a block copolymer having, in its molecule, at least one butadiene polymer block (I) having a vinyl bond content of 5 to 25% in the block and at least one polymer block (II) having a mass ratio of a conjugated diene to other monomer of (100 to 50)/(0 to 50) and having a vinyl bond content of 25 to 95% by mass and a butyl rubber, and 500 to 5,000 parts by mass of a liquid material (B), and has a total transmittance of 90% or higher at 25° C. and at a thickness of 0.5 mm.

The invention belongs to the field of carbon material preparation, and particularly relates to a preparation method of a lignin-based porous carbon material. Under the oxidation action of low-concentration hydrogen peroxide, ozone blowing during low-temperature carbonization and a low-temperature carbonization charking process are combined, so that the orderliness and regularity of lignin molecules are improved, the oxidation of unsaturated bonds of lignin is promoted, and the activation of an activating agent melamine pyrophosphate is carried out, so that small molecules can be quickly removed during high-temperature cracking, the charking time is shortened, the yield of the carbon material is increased, and the obtained carbon material is more excellent in performance.

The invention discloses a preparation method of an alkali-resistant composite nanofiltration membrane. Polyethyleneimine is used as a composite layer material, multi-component epoxy is used as a crosslinking agent, and the composite nanofiltration membrane is obtained by a gradient crosslinking process. In the membrane filtration process, protonated amino groups on a polyethyleneimine molecular chain enable the surface of the membrane to be positively charged, and the membrane has high selectivity to multivalent cations. Due to the fact that amino and epoxy groups carry out ring-opening reactions to form carbon-carbon saturated bonds and hydroxyl groups, the composite layer has good stability and permeability in an alkaline environment. The preparation process is simple, and the compositemembrane is good in permeability and can be widely applied to graded removal of micromolecular organic matters in alkaline wastewater.

The invention relates to a novel low-oxygen liquid SiHfBCN ceramic precursor and a preparation method thereof. A SiBCN precursor and a hafnium precursor are dissolved in an organic solvent to form a homogeneous solution, a free radical initiator is added, heating is performed to initiate a free radical polymerization reaction of double bonds between the two precursors, and heating or vacuumizing is performed to remove the solvent to obtain viscous liquid, namely a SiHfBCN ceramic precursor. After the SiHfBCN ceramic precursor is subjected to pyrolysis treatment, homogeneous SiHfBCN ceramic canbe obtained. According to the method, the problem of poor solubility of the hafnium precursor is solved, meanwhile, a silicon-hafnium-boron-carbon-nitrogen precursor is prepared through free radicalpolymerization of unsaturated bonds, introduction of an oxygen element is avoided, no byproduct is generated, the preparation process is simple, and the problem that a traditional refractory metal hafnium compound is high in preparation temperature and difficult to sinter is solved.

Novel silicon-containing polymers are obtained by copolymerizing a vinylsilane monomer with a compound having a low electron density unsaturated bond such as maleic anhydride, maleimide derivatives or tetrafluoroethylene. Using the polymers, chemical amplification positive resist compositions sensitive to high-energy radiation and having a high sensitivity and resolution at a wavelength of less than 300 nm and improved resistance to oxygen plasma etching are obtained.

The invention, which belongs to the technical field of road engineering, discloses a method for aging evaluation of polymer modified asphalt based on potentiometric titration. The method comprises: step one, carrying out aging processing on a modified asphalt sample; step two, dissolving the modified asphalt sample in an organic solvent to prepare to-be-tested liquid for titration testing, carrying out titration testing on the to-be-tested liquid by using a potentiometric titration method, and acquiring an iodine value of the modified asphalt sample after un-aging processing and aging processing; and step three, calculating an iodine value changing rate after aging processing to evaluate the aging degree of the asphalt. According to the invention, on the basis of the modified asphalt agingmechanism, a variation law of an unsaturated bond is selected to evaluate the aging phenomenon of modified asphalt and monitoring is carried out by combining the potentiometric titration method withthe high precision, so that effective information is provided for evaluating the anti-aging capability of the asphalt and taking corresponding anti-aging measures in a targeted manner.