Compounds having formula (I) in which n is 1, 2 or 3 and R.sup.1 to R.sup.6 represent, independently, branched or unbranched, substituted or unsubstituted alkyl-, alkenyl-, alkinyl-, cycloalkyl-, cycloalkenyl- or aromatic-radicals or hydrogen wherein these radicals may in addition contain one or more --O-- and/or (a)--groups, whereby one or two rings can be built by the combination of the respective R.sup.1 to R.sup.6 and this/these ring(s) can be further substituted by an alkyl-group, in which ...

Disclosed is a process for the purification of a polyester precursor wherein a polyester oligomer derived from terephthalic acid and one or more glycols or diols is purified or decolorized by hydrogenating the oligomer to convert colored impurities to colorless compounds and thereby improve the color of the oligomer. The colored impurities are present in the terephthalic acid used to prepare the oligomers and are formed during the manufacture of terephthalic acid. The purified/decolorized oligom...

The invention is directed to a biodegradable implant precursor having a two-part structure made of an outer sac and a liquid content. The implant precursor is composed of a biodegradable, water-coagulable thermoplastic polymer and a water-miscible organic solvent. When administered to an implant site in an animal, the implant precursor will solidify in situ to a solid, microporous matrix by dissipation of the organic solvent to surrounding tissue fluids and coagulation of the polymer. The invent...

Photosensitive compositions containing a polyimide precursor and a complex cation of a polymerizable carboxylic acid functional compound with a tertiary amino functional group; and use thereof to provide a pattern.

A precursor source mixture useful for CVD or ALD of a film comprising: at least one precursor composed of an element selected from the group consisting of Li, Na, K, Rb, Cs, Fr, Be, Mg, Ti, Zr, Hf, Sc, Y, La, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, B, Al, Ga, In, Tl, Si, Ge, Sn, Pb, As, P, Sb and Bi, to which is bound at least one ligand selected from the group consisting of hydride, alkyl, alkenyl, cycloalkenyl, aryl, alkyne, carbonyl, amido, im...

The invention provides a planographic printing plate precursor, utilizing a support member having a hydrophilic surface excellent in hydrophilicity and durability, providing effects of improving scumming in the printing operation and capable of forming large numbers of prints of high image quality even under severe printing conditions. The precursor comprises a support including an aluminum substrate and a hydrophilic layer disposed thereon, the hydrophilic layer formed by chemically bonding a h...

Systems and methods are disclosed for creating smooth surfaces for layers that are employed in memory cells and have previously been subject to a CMP process. The present invention employs various cycles of exposing the post CMP surface to inorganic and organic acids, as well as growing passive layers. The systems and methods may comprise an electroless feature for forming the passive layers.

A system for delivering a liquid phase precursor fluid into a process chamber as a vapor phase fluid at constant pressure, the system comprising: a vaporizer for vaporizing the liquid phase precursor fluid prior to injecting the vapor phase fluid precursor into the process chamber, and a controllable device for transporting a preselected volume of the liquid phase fluid precursor from a reservoir to the vaporizer responsive to the pressure at the outlet of the vaporizer prior to entering the pro...

This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers: ##STR1## wherein E is nitrogen or C--R'; J is sulfur or oxygen; R', R1, R2, R3, R4 is independently H, halogen, alkyl, nitro, nitrile, alkoxy, halogenated alkyl, halogenated alkoxy, phenyl or halogenated phenyl, R5 is H or protected or unprotected side chain of...

A lithographic printing plate precursor comprising a support having a hydrophilic surface having provided thereon an image-forming layer containing a hydrophobic high molecular compound having at least either a functional group represented by formula (1) or a functional group represented by formula (2): ##STR1## wherein X.sup.+ represents an iodonium ion, a sulfonium ion or a diazonium ion.