Thiol ester compositions, methods of making the thiol ester compositions, and methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters, sulfonate containing esters and thioacrylate containing esters. The thiol ester compositions can be used to produce polythioure...

A catalyst used for preparing thiochloroformates by reacting thiols with phosgene is a cyclic urea or cyclic thiourea which may be in the form of a salt obtainable by reaction with a hydrohalic acid or phosgene.

Disclosed in an automatic stereoplotting system utilizing a registration error signal responsive servomechanism to correct parallax and indicate elevation of actual terrain imaged at certain points in a pair of stereo photographs. The inherent steady state following error of the servomechanism is compensated to provide an elevation indicating output that corresponds in time with output signals identifying the relative positions of the image points being considered.

Thioesters of the formula RCOSR are produced from a mercaptan of the formula RSH wherein R is a benzylic, aromatic or aliphatic moiety by reacting the mercaptan with carbon monoxide in the presence of a polyunsaturated olefinic hydrocarbon and as catalyst a metal component selected from iron, cobalt, nickel, molybdenum, ruthenium, rhodium and iridium, the metal component being in free or combined form.

This invention provides a process for hydroesterification of an alpha-olefin with carbon monoxide and hindered thiol compound, in the presence of a catalyst which is a stabilized complex of palladium and tertiary phosphine ligand.

This invention provides a process for monomeric thioloesterification of 1,3-alkadiene in the presence of a catalyst which is a stabilized complex of palladium, tertiary phosphine ligand and thiol compound. Monomeric thioloesterification of 1,3-butadiene with 1-butanethiol and carbon monoxide in accordance with the present invention process provides a high conversion and selectivity yield of 1-butyl 3-thiolopentenoate product.

D-Homopregnanes of the formula ##STR1## wherein X is hydrogen, Y is hydroxy or X and Y taken together denote an oxygen to carbon bond; R.sup.6 is hydrogen, R.sup.7 is hydrogen, lower alkanoylthio or aroylthio, or R.sup.6 and R.sup.7 taken together denote a carbon to carbon bond and the dotted line in the 1,2-position of the A-ring together with the corresponding solid line denotes a single or double carbon to carbon bond or a pharmaceutically acceptable basic addition salt thereof when Y is hydr...

A vacuum memory holding device of the type used as a tray for rigidly supporting a plurality of waferlike objects in a spray-coating chamber. The device includes a top plate having a plurality of apertures as a support for each one of the wafers and a bottom vacuum chamber from which the vacuum is drawn. The vacuum chamber includes a resilient wall which is collapsed as the vacuum is drawn and serves to hold the vacuum independently and rigidly support the waferlike objects during the spray-coat...

The invention relates to a method of producing (meth)acryloylthio esters of general formula I ##STR1## where R represents hydrogen or methyl, and R.sup.1 represents a phenyl group, a substituted phenyl group, a C.sub.1-24 alkyl group, a substituted C.sub.1-24 alkyl group, a cyclic C.sub.3-24 alkyl group; comprising reacting (meth)acrylic acid anhydride (formula II) ##STR2## where R represents hydrogen or methyl, with at least the stoichiometric amount with a thiol or thiolate of formula III wher...

The invention relates to a thio(meth)acrylic acid bisester of formula I ##STR1## where R.sub.1 represents hydrogen or methyl; r represents the number 0 or 1; and s, m, and n independently represent an integer from 2 to 6, with the proviso that when r=0, s+n>4; and when r=1, s+m+n>6 useful as or monomer for high refractive index plastics.