摘要:
A black and white photographic element comprising as a photosensitive medium a layer of a silver halide emulsion characterised in that the photosensitive medium comprises in the same layer or in an adjacent layer thereto a developer comprising a substantially non-diffusing polymeric compound having as a component part of its structure a plurality of units having a nucleus of general formula (I): ##STR1## wherein; each Z independently is a member selected from the group consisting of --OH and a group which leaves an --OH residue when contacted with an alkali (pH .gtoreq.10) at temperatures of .ltoreq.50.degree. C.
摘要:
The present disclosure provides a contact lens package containing a contact lens in a compressed state. In one exemplary embodiment, the overall internal depth of the package is less than the natural sagittal depth of the contact lens. Different single-use contact lens package shapes and configurations may be used. In some embodiments, a spring disc is included in the packages to help present the contact lens to the user when the package is opened. The contact lens packages may be adhered or clipped to a card or other carrier sheet, and may be housed in a number of different secondary packages.
摘要:
System for providing contact lenses to consumers includes packaging right and left contact lens prescriptions together in a secondary package which contains prescription information before delivery to the consumer.
摘要:
Gelatin hardeners, suitable for use in hardening gelatin-containing photographic layers, of the formula: ##STR1## wherein: X is a member selected from the group consisting of O and S or is absent,each Y independently is a member selected from the group consisting of O, S and a bond,each R.sup.1 independently represents an aliphatic group of up to 10 carbon atoms or the two R.sup.1 groups together represent the necessary atoms to complete a 5, 6 or 7-membered ring,--NR.sup.2 R.sup.3 contains not more than 12 skeletal atoms andR.sup.2 and R.sup.3 are independently members of the group consisting of hydrogen, cyclic groups and acyclic groups or R.sup.2 and R.sup.3 together represent the necessary atoms to complete a heterocyclic ring.
摘要翻译:明胶固化剂,适用于硬化含有明胶的照相层,具有下式:其中:X是选自O和S的成员,或不存在,每个Y独立地是选定的成员 由O,S和键组成的组中,每个R 1独立地表示至多10个碳原子的脂族基团,或两个R 1基团一起代表完成5,6或7-元环所必需的原子,-NR 2 R 3含 不超过12个骨架原子,R2和R3独立地为氢,环状基团和无环基团的成员,或者R 2和R 3一起代表完成杂环的必要原子。
摘要:
The present disclosure provides a contact lens package containing a contact lens in a compressed state. In one exemplary embodiment, the overall internal depth of the package is less than the natural sagittal depth of the contact lens. Different single-use contact lens package shapes and configurations may be used. In some embodiments, a spring disc is included in the packages to help present the contact lens to the user when the package is opened. The contact lens packages may be adhered or clipped to a card or other carrier sheet, and may be housed in a number of different secondary packages.
摘要:
The present disclosure provides a contact lens package containing a contact lens in a compressed state. In one exemplary embodiment, the overall internal depth of the package is less than the natural sagittal depth of the contact lens. Different single-use contact lens package shapes and configurations may be used. In some embodiments, a spring disc is included in the packages to help present the contact lens to the user when the package is opened. The contact lens packages may be adhered or clipped to a card or other carrier sheet, and may be housed in a number of different secondary packages.
摘要:
Isopropylbenzene derivatives having the general formula: ##STR1## in which: R.sup.1 to R.sup.4 independently represent a hydrogen atom or a lower alkyl group having up to 4 carbon atoms,X.sup..crclbar. represents COO.sup..crclbar. or SO.sub.3.sup..crclbar., andR.sub.f represents a fluorinated organic radical.The compounds may be applied to surfaces liable to be or become negatively charged to suppress spark discharges from such surfaces. Those compounds in which at least two of R.sup.2, R.sup.3 and R.sup.4 are alkyl, are particularly useful in the top coat of photographic films to eliminate marks caused by spark discharges.
摘要:
A method of treating a surface, e.g. carpet, gramophone record, to reduce the static charging thereon which comprises applying a novel antistatic composition comprising a fluorinated anionic surfactant which is an amine salt of an acid containing a fluorinated organic radical and an antistatic agent which is an ionic salt of an amine, preferably in alcoholic solution.
摘要:
A process for forming lactose suitable for use in a pharmaceutical formulation comprises providing a plurality of lactose particles containing no more than 10% w/w of lactose particles having a volume average particle size of about 70 microns or less; milling the plurality of lactose particles to yield a plurality of milled lactose particles with an average particle size, (D50), ranging from about 50 microns to about 100 microns; and classifying the plurality of milled lactose particles into at least two fractions comprising a fine fraction and a coarse fraction wherein the fine fraction has an average particle size, (D50), ranging from about 3 microns to about 50 microns, and the coarse fraction has an average particle size, (D50), ranging from about 40 microns to about 250 microns.
摘要:
A contact lens package includes a container, a contact lens, and an internal member configured facilitate a restoration of the contact lens to a desired shape when the package is opened by the user.