Abstract: Sulfonic derivatives of N-acylated covalently bound, non-crosslinked polyethyleneimine bonded phase silicas of the formula: ##STR1## whereinis the backbone of a silica gel or glass, n is an integer such that the polyethyleneiminopropyl silane group has an average molecular weight of from about 400 to about 1800; q is an integer of zero or one; R is selected from the group consisting of hydrogen, --CH.sub.2).sub.x H or --CH.sub.2).sub.m COOH where x is an integer of 1 or 2 and m is an integer of zero or 1; when R is hydrogen or --CH.sub.2).sub.x H then R.sup.1 is --CH.sub.2).sub.p COOH where p is an integer of zero or 1, and when R is --CH.sub.2).sub.m COOH then R.sup.1 is selected from the group consisting of hydrogen or --CH.sub.2).sub.y H where y is a integer of zero or 1, are especially useful as solid phases for the purification and separation of proteins having isoelectric points of below about 5.

Abstract: The reaction product of silica gel or controlled pore glass and carboalkoxyalkyl silanes are suitable for use as packing in solid phase extraction columns for cleanup of urine samples for analysis of cannabinoids.

Abstract: A bonded phase silica product of the formula: ##STR1## in which ##STR2## is the backbone of a silica gel or controlled pore glass, X is selected from --O--, --S--, ##STR3## each R and R.sup.1 are each independently selected from hydrogen, an alkyl group of from 1 to 3 carbon atoms and --CH.sub.2).sub.m COOR.sup.3, R.sup.2 and R.sup.3 are each independently alkyl of from 1 to 4 carbon atoms, n is an integer of from 2 to 5, p is zero or one and m is an interger of from 1 to 4, is suitable for use in solid phase extraction for cleanup of urine samples for analysis of cannabinoids.

Abstract: Sulfonic derivatives of N-acylated covalently bound, non-crosslinked polyethyleneimine bonded phase silicas of the formula: ##STR1## is the backbone of a silica gel or controlled pore glass, n is an integer such that the polyethyleneiminopropyl silane group has an average molecular weight of from about 400 to about 1800; q is an integer of zero or one; R is selected from the group consisting of hydrogen, --(CH.sub.2).sub.x H or --(CH.sub.2).sub.m COOH where x is an integer of 1 or 2 and m is an integer of zero or 1; when R is hydrogen or --(CH.sub.2).sub.x H then R.sup.1 is --(CH.sub.2).sub.p COOH where p is an integer of zero or 1, and when R is --(CH.sub.2).sub.m COOH then R.sup.1 is selected from the group consisting of hydrogen or --(CH.sub.2).sub.y H where y is an integer of zero or 1, are especially useful as solid phases for the purification and separation of proteins having isoelectric points of below about 5.

Abstract: A bonded phase silica product of the formula: ##STR1## in which ##STR2## is the backbone of a silica gel or controlled pore glass, X is selected from --O--, --S--, ##STR3## each R and R.sup.1 are each independently selected from hydrogen, an alkyl group of from 1 to 3 carbon atoms and --CH.sub.2).sub.m COOR.sup.3, R.sup.2 and R.sup.3 are each independently alkyl of from 1 to 4 carbon atoms, n is an integer of from 2 to 5, p is zero or one and m is an integer of from 1 to 4, is suitable for use in solid phase extraction for cleanup of urine samples for analysis of cannabinoids.

Abstract: The reaction product of silica gel or controlled pore glass and carboalkoxyalkyl silanes are suitable for use as packing in solid phase extraction columns for cleanup of urine samples for analysis of cannabinoids.

Abstract: Positive deep ultra-violet photoresists which are base developable comprise base soluble polymers and as photosensitive solubilizing agents oligomeric compounds of the formula ##STR1## wherein X is alkylene, arylene, alkoxyalkylene or aralkylene and n is a positive integer such that the molecular weight of the oligomeric compound is from about 500 to about 3000.

Abstract: Positive deep ultra-violet photoresists which are base developable comprise base soluble polymers and as photosensitive solubilizing agents compounds of the formula ##STR1## wherein: R.sub.4 is hydrogen or --C(O)R.sub.5 in which R.sub.5 is an alkoxy group having from 1 to about 20 carbon atoms;R.sub.6, R.sub.7, R.sub.8 and R.sub.9 may each be the same or different and be hydrogen or alkyl of from 1 to about 6 carbon atoms when R.sub.4 is --C(O)R.sub.5 ; orwhen R.sub.4 is either hydrogen or --C(O)R.sub.5,(a) one of either R.sub.6 or R.sub.7 and one of either R.sub.8 and R.sub.9 is hydrogen and the other of either R.sub.6 or R.sub.7 and the other of either R.sub.8 or R.sub.9 which is not hydrogen together form an alkylene group of from 1 to about 6 carbon atoms, or(b) one set of either R.sub.6 and R.sub.7 together or R.sub.8 and R.sub.9 together is a cycloalkyl group of from 4 to 8 carbon atoms and the other set of either R.sub.6 and R.sub.7 or R.sub.8 and R.sub.9 that is not cycloalkyl are each hydrogen.

Abstract: Positive deep ultra-violet photoresists which are base developable comprise base soluble polymers and as photosensitive solubilizing agents compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 can each individually be alkyl, aryl, alkoxy alkyl, aralkyl or haloalkyl radicals or R.sup.1 and R.sup.2 taken together can be an alkylene radical.

Abstract: An improved herbicidal formulation comprising a mixture of the isopropylamine salt of glyphosate and an effective potentiating amount of an ammonium, quaternary alkyl ammonium, alkali metal or alkaline earth metal thiocyanate.

Abstract: A method of separating and recovering immunoglobulin G from biological fluids by liquid chromatographic or solid phase extraction processes utilizing, as the solid phase, a carboxylated form of silica gel or controlled pore glass bearing non-cross-linked covalently bound polyethylenimine functions.

Abstract: A method of chromatographically separating monoclonal antibody type IgM from mouse ascites fluid utilizing a particular chromatographic packing of silica gel bearing bound polyethylenimine functions.

Abstract: The reaction product of silica gel or controlled pore glass and polyethyleniminopropyl trimethoxy silane suitable for use as chromatographic column packing.

Abstract: p-Nitrophenylester of succinoylaminopropyl silica gel is useful as an affinity matrix for reacting with ligand for use in affinity chromatography. The affinity matrix, upon reaction with a ligand, releases one molecule of p-nitrophenolate ion for every molecule of ligand that reacts and the solution turns yellow as the reaction occurs.

Abstract: Improved diazonium affinity matrixes are provided which are storable stable and may be stored for extended periods for future use. The improved affinity matrixes are diazonium silica gel affinity matrixes containing an amine linkage and especially the fluoborate salts thereof.

Abstract: A pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from a polyvinyl butyral resin or from a casting composition which is a mixture of a polyvinyl butyral resin and a dispersion of colloidal silica and a silicone resin which is a lower aliphatic alcohol-water solution of the partial condensate of a silanol. A pellicle employing such films are useful in the near, mid and deep UV regions.

Abstract: A pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from a polyvinyl butyral resin or from a casting composition which is a mixture of a polyvinyl butyral resin and a dispersion of colloidal silica and a silicone resin which is a lower aliphatic alcohol-water solution of the partial condensate of a silanol. A pellicle employing such films are useful in the near, mid and deep UV regions.

Abstract: A pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from the novel film forming reaction product of a polyvinyl butyral resin with a silane. Pellicles employing such films are useful in the near, mid and deep UV regions.

Abstract: Stripping compositions for removing resist materials from substrates comprise compositions of a 2-pyrrolidinone compound and a diethylene glycol monoalkyl ether compound. Polyethylene glycol may be added to provide even more effective stripping compositions.

Abstract: Stripping compositions for removing resist materials from substrates comprise compositions of dimethylacetamide or dimethylformamide or a mixture thereof and a tetrahydrothiophene 1,1-dioxide compound.