摘要:
Embodiments of the invention provide compositions useful in analyte sensors as well as methods for making and using such compositions and sensors. In typical embodiments of the invention, the sensor is a glucose sensor comprising an analyte modulating membrane formed from a polymeric reaction mixture formed to include limiting amounts of catalyst and/or polycarbonate compounds so as to provide such membranes with improved material properties such as enhanced thermal and hydrolytic stability.
摘要:
Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.
摘要:
A composite laminate structure includes one or more layers of prepreg and a thermoplastic polyurethane film layer on the surface of the one or more prepregs. A method of making a composite laminate structure including a thermoplastic polyurethane film is also provided.
摘要:
A lactam-functionalized polymer is disclosed. The dihydroxy lactam based polymer includes polyesters, polycarbonates, polyethers, poly (ester ethers), poly (ester amides), poly imides, polyamides, poly acrylates and poly (ester imides), and polyurethanes. The applications of the dihydroxy lactam based polymers are also disclosed.
摘要:
A polyurethane urea composition and a preparation method thereof are provided. The method includes mixing and reacting an urea and an amine compound to obtain a polyurea oligomer, and mixing and reacting the polyurea oligomer and a cyclic carbonate compound to obtain a polyurethane urea composition having a repeating unit represented by formula I: —R2—U2—U1—U2—R2, wherein [formula I] U1 is a is an integer of 1 to 10000, each U2 is independently each R1 is independently a C1 to C20 alkyl group, a C3 to C20 cycloalkyl group, a C8 to C20 alkylaryl group, a polyether group having a weight-average molecular weight of 100 g/mol to 10000 g/mol, or a combination thereof, and each R2 is independently an aliphatic group, a cycloaliphatic group, an aromatic group substituted by an alkyl or an unsubstituted aromatic group, an oligo polyether group, an oligo polyester group, or a combination thereof.
摘要:
A resin composition includes a polymer including a repeating unit represented by Chemical Formula 1, wherein in Chemical Formula 1, each substituent is the same as defined in the specification, and a solvent and an organic film manufactured using the same is provided.
摘要:
In the belt according to the present invention, the whole or a part of a belt body is formed from a thermoplastic resin composition (C) comprising a thermoplastic resin (A) and a modified ethylene copolymer (B) dispersed and contained therein. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group. The belt according to the present invention hardly causes abrasion, damage, cracks, breakage and the like on the belt body and is remarkably excellent in durability, even if the belt is used at a high load for a long time.
摘要:
The present technology is an epoxy resin composition containing an epoxy resin (A), a urethane resin (B) in which the terminal isocyanate of the urethane prepolymer is blocked by at least one of an ε-polycaprolactam, an oxime, or a pyrazole, and in which bisphenol A is included in the backbone of the aforementioned urethane prepolymer, and a curing agent (C).
摘要:
A simulated biological material for photoacoustic diagnostic apparatus contains a polyol or a cured material produced from a polyol and a polyisocyanate, and titanium oxide fine particles in the polyol or the cured material. The titanium oxide fine particles are surface-treated with a polysiloxane having a Si—H partial structure.
摘要:
The present invention relates to processes for the preparation of aqueous dispersions based on polyurethaneureas and to the use of these dispersions in coating agents.