摘要:
A cathode comprising a current collector coated with a dispersion of (CF.sub.x).sub.n wherein x is equal to or less than 1.2 and n is an indeterminately large number, a current carrier and a binder characterized in that the current collector is a conductive foil, the binder is sufficiently adhesive to adhere the coated dispersion to the conductive foil and the coated dispersion has a porosity greater than 43 percent. The cathodes are useful in electrochemical cells having light metal anodes.
摘要:
This invention is directed to dry, negatively charged toner compositions and developer compositions, the toner composition being comprised of resin particles prepared from a polyester having a glass transition temperature of 50.degree. to 100.degree. C. and a weight average molecular weight of 20,000 to 100,000 and, as a charge-control agent, from about 0.1 to about 10 percent by weight based on the weight of the resin particles of 6-tert-butyl-ortho-benzoic sulfimide as represented by the formula: ##STR1##
摘要:
A monocomponent electrostatographic developer is disclosed. The developer contains a negative charging toner wherein the toner particle surface contains particles of cerium dioxide and a mixture of two hydrophobic silicon dioxides having a particle size of 0.005 to 0.03 .mu.m.
摘要:
This invention is directed to dry, negatively charged toner compositions and developer compositions, the toner composition being comprised of resin particles prepared from a polyester having a glass transition temperature of 50.degree. to 100.degree. C. and a weight average molecular weight of 20,000 to 100,000 and, as a charge-control agent, from about 0.1 to about 10 percent by weight based on the weight of the resin particles, of ortho-benzoic sulfimide as represented by the formula: ##STR1##
摘要:
This invention is directed to dry, negatively charged toner compositions and developer compositions, the toner composition being comprised of resin particles prepared from a polyester having a glass transition temperature of 50.degree. to 100.degree. and a weight average molecular weight of 20,000 to 100,000 and, as a charge-controlling additive, from about 0.1 to about 10 percent by weight based on the weight of the resin particles, of the calcium salt of ortho-benzoic sulfimide as represented by the formula: ##STR1##
摘要:
This invention is directed to dry, negatively charged toner compositions and developer compositions, the toner composition being comprised of resin particles prepared from a polyester having a glass transition temperature of 50.degree. to 100.degree. C. and a weight average molecular weight of 20,000 to 100,000, a colorant and, as a charge-controlling additive, the zinc salt of ortho-benzoic sulfimide as represented by the formula: ##STR1##
摘要:
Preformed, water-soluble, acrylamide based copolymers comprising a minor proportion of a comonomer, which comonomer contains a site for a crosslinking reaction with a selected crosslinking agent by a reaction that does not involve a free-radical vinyl addition mechanism, which copolymers have M.sub.w and M.sub.n values within selected ranges, can be conveniently and safely used to prepare electrophoresis gel media in situ.
摘要:
Method and device for treating angina pectoris and preventing tolerance to nitrate drugs which takes into account the frequent need to provide the patient with relief from or prevention of pre-waking or early morning angina. The treatment comprises administering a daily unit dose of the nitrate before bedtime in a dosage form that (1) provides a washout period of 3 to 12 hours by sufficiently retarding delivery of the nitrate to the patient during the washout period so as to provide a rate of delivery of nitrate from the patch that is so low as to be insufficient to cause tolerance to said nitrate in said patient; (2) at the end of the washout period and at least 30 minutes before the patient expects to awaken, initiates an effective delivery period during which the dosage form provides an initial effective delivery rate sufficient to provide an antianginally effective concentration of nitrate in the blood stream of the patient; and (3) thereafter, during a ramp-up delivery period, delivers the nitrate at an increasing rate until a final delivery rate is achieved, which is from 125% to 1,000% of the initial effective delivery rate. At the end of the ramp-up period, delivery is exhausted or otherwise terminated. A new unit dose is administered at bedtime, and the cycle is repeated. A preferred transdermal patch for carrying out the treatment is provided.
摘要:
A two component electrophotographic developer and development method. The developer includes carrier particles and toner comprising: polymeric binder; a first agent selected from the group consisting of compounds having the general structure: ##STR1## wherein n is from about 7 to about 21; R.sup.1 and R.sup.2 are each independently H or alkyl having from 1 to about 3 carbons; T represents an unshared electron pair or a proton and a counterion; and R.sup.3 is substituted or unsubstituted alkyl, alkylamide, aryl, or heteroaryl; and a second agent comprising quaternary ammonium salt.