摘要:
A method for the preparation of functionalized particles includes providing a feedstock that includes particles, a surface treatment agent reactive with the particles and solvent. The feedstock is direct through a continuous hydrothermal reactor maintained at a temperature sufficient to react the particles with the surface treatment agents to thereby provide functionalized particles. The method of the invention is capable of providing the functionalized particles in less than about 4 hours.
摘要:
A method for the preparation of functionalized particles includes providing a feedstock that includes particles, a surface treatment agent reactive with the particles and solvent. The feedstock is direct through a continuous hydrothermal reactor maintained at a temperature sufficient to react the particles with the surface treatment agents to thereby provide functionalized particles. The method of the invention is capable of providing the functionalized particles in less than about 4 hours.
摘要:
Functionalized solid support material with biomolecule-binding groups and uses thereof, wherein the biomolecule-binding groups include a plurality of aromatic groups, an amine group which bonds to a biomolecule through an aldehyde group, a hydrazine group which bonds to a biomolecule through an aldehyde group, or an alpha,beta-ethylenically or acetylenically unsaturated group with an electron withdrawing group.
摘要:
Toughened curable compositions are described. The curable compositions include a curable resin, surface-modified nanoparticles, and rubber nano-domains. Both core-shell rubber nano-domains, and nano-rubber domains arising from self-assembled block co-polymers are disclosed. Toughened, cured resin compositions, and articles comprising such cured compositions are also discussed.
摘要:
An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer or reactive fluoropolymer, an amino silane ester coupling agent or ester equivalent, a multi-olefinic crosslinker, and optional surface modified inorganic particles or sol gel precursors.
摘要:
A visible-light photopolymerizable composition comprising a) a cationically polymerizable epoxy resin, b) a hydroxyl-containing material c) an aryliodonium salt and d) a visible light sensitizer that is an alpha-dicarbonyl compound having an extinction coefficient less than about 1000. Particularly preferred compositions of the present invention are dental materials.
摘要:
A shingle having a headlap section and a buttlap section with at least one portion of the buttlap section having a relatively uniform color and another portion of the buttlap section having a color gradient or gradation from light to dark. An illusion of depth or thickness is created on the portion of the buttlap section having the color gradient. The buttlap section defines in part the exposed weather surface of the associated shingle. The relatively uniform color portions may be formed on tabs or dragon teeth and the color gradient formed on a backer sheet disposed beneath the tabs. Openings between adjacent tabs expose the color gradient to view. A plurality of horizontal striations may be used to establish the desired color gradient from light to dark. The amount of tone and contrast may be selected to create the desired illusion of depth or thickness. The amount of contrast may be varied depending upon the color selected for each shingle. The number of horizontal striations and their width may also be varied to provide the desired color gradient.
摘要:
The invention relates to an abrasive article comprising:(a) a plurality of abrasive grains; and(b) at least one binder for the abrasive grains,wherein the binder comprises a cured epoxy resin containing a polycyclic aryl, polycyclic alkyl, or cycloalkyl structure. The abrasive articles can comprise bonded, non-woven or coated abrasive articles.
摘要:
A thermosettable resin composition having a viscosity that decreases during processing temperatures and increases as the temperature is raised to curing temperatures is provided. The composition comprises thermosettable resins and thermoplastic particles that are insoluble in the thermosettable resins at processing temperatures but soluble in the thermosettable resins at curing temperatures. Prepregs prepared from the thermosettable resin composition are also provided.