摘要:
A composite filler comprising thermally processed porous inorganic mixed particles of silica and at least one heteroparticle selected from the group consisting of zirconia, hafnia, or yttria and a polymer occupying the pores of the porous inorganic mixed particles, wherein the porous inorganic mixed particles are thermally processed at a temperature of from 650 to 900° C., as well as a dental restorative comprising a resin and a composite filler, and optionally other fillers, wherein said resin has a refractive index that increases upon curing, and wherein the opacities of the both uncured and cured restorative are less than 45.
摘要:
The present invention relates to hetero-coagulated silica-alumina mixed oxide compositions that have a sharp refractive index and narrow refractive index dispersion between about 1.46 and 1.60.
摘要:
The present invention relates to bioactive hetero-coagulated mixed materials that have high strength and durability, that are prepared using an aqueous process, and that have a high transparency when placed into a monomer, polymer, or resin of approximately the same refractive index.
摘要:
A method, a storage phosphor prepared by the method, and a storage panel. In the method, a precursor mixture is fired, at a temperature between 700.degree. C. and the melting point of the phosphor, to produce an intermediate product. The precursor mixture comprises a combination of species characterized by the relationship:MFX.sub.1-x I.sub.z.uM.sup.a X.sup.a :yA:eQwherein M is selected from Mg, Ca, Sr and Ba; X is selected from Cl and Br; M.sup.a is selected from Na, K, Rb and Cs; X.sup.a is selected from F, Cl, Br and I; A is selected from Eu, Ce, Sm, and Tb; Q is metal oxide; and 0
摘要:
The present invention relates to bioactive hetero-coagulated mixed materials that have high strength and durability, that are prepared using an aqueous process, and that have a high transparency when placed into a monomer, polymer, or resin of approximately the same refractive index.
摘要:
The present invention relates to hetero-coagulated silica-alumina mixed oxide compositions that have a sharp refractive index and narrow refractive index dispersion between about 1.46 and 1.60.
摘要:
A laser-exposed thermal recording element comprising a support having thereon a pigment layer comprising a pigment dispersed in a polymeric binder, the pigment absorbing at the wavelength of a laser used to expose the element, wherein the pigment comprises the formula: M.sub.x A.sub.y Q.sub.z wherein: M is at least one metal atom, A is at least one alkali metal, Q is at least one of oxygen or sulfur, x is an integer between 1 and 3, y is between 0 and about 2, and z is between about 1 and about 4.
摘要翻译:一种激光曝光的热敏记录元件,包括其上具有颜料层的载体,所述颜料层包含分散在聚合物粘合剂中的颜料,所述颜料以用于暴露所述元件的激光的波长吸收,其中所述颜料包含下式:M x A y Q z其中M是 至少一个金属原子,A是至少一种碱金属,Q是氧或硫中的至少一个,x是1和3之间的整数,y在0和约2之间,z在约1和约4之间 。
摘要:
A laser-exposed thermal recording element comprising a support having thereon a pigment layer comprising a pigment dispersed in a polymeric binder, the pigment absorbing at the wavelength of a laser used to expose the element, wherein the pigment comprises the formula: Cu.sub.2-x M.sub.x (OH).sub.y R.sub.z :M'.sub.w wherein: M is at least one metal atom, M' is at least one alkali metal, R is at least one anion, w is between 0 and 2, x is between 0 and 1.5, y and z are selected to maintain charge neutrality, with the proviso that w, x and z cannot all be 0.
摘要翻译:一种激光曝光的热敏记录元件,包括其上具有颜料层的载体,所述颜料层包含分散在聚合物粘合剂中的颜料,所述颜料以用于暴露所述元件的激光的波长吸收,其中所述颜料包含式:Cu 2-x M x( OH)y R z:其中:M是至少一个金属原子,M'是至少一种碱金属,R是至少一个阴离子,w在0和2之间,x在0和1.5之间,y和z是 选择以保持电荷中性,条件是w,x和z不能全部为0。
摘要:
A radiographic phosphor panel, phosphor, and phosphor modification method. The radiographic phosphor panel has a luminescent layer including a mass of phosphor particles. The phosphor particles each have a primary portion and a secondary portion. The secondary portion is exterior to and continuous with the primary portion. The primary portion includes a primary phosphor having a combination of species characterized by the relationship:MFX.sub.1-z I.sub.z .multidot.uM.sup.a X.sup.a :yA:eJ:tD:dSThe secondary portion includes a secondary phosphor having a combination of species characterized by the relationship:M'FX'.sub.1-z+q I.sub.z-q .multidot.u'M.sup.a 'X.sup.a ':y'A':e'J':t'D':d'SIn these relationships, M and M' are selected from Mg, Ca, Sr, and Ba; X and X' are selected from Cl and Br; M.sup.a and M.sup.a ' are selected from Na, K, Rb, and Cs; X.sup.a and X.sup.a ' are selected from F, Cl, and Br; A and A' are selected from Eu, Ce, Sm, and Tb; J and J' are metal oxide; D and D' are selected from V, Cr, Mn, Fe, Co, and Ni; z is greater than 1.times.10.sup.-2 and less than 1; q is from 1.times.10.sup.-2 to 1 and less than or equal to z; u and u' are from 0 to 1; y and y' are from 1.times.10.sup.-4 to 0.1; e and e' are from 0 to 1; and t and t' are from 0 to 1.times.10.sup.-2.
摘要:
The invention provides a dental curing device comprising a light source having a wavelength capable of inducing polymerization of a photopolymer, and a noncontact thermal detector in alignment with said light source and capable of measuring the temperature or temperature change of the photopolymer upon polymerization.