Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 40 to 98 mol percent isophthalic acid; from about 0 to about 50 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.

Abstract: Di-amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 0-1000 and m is 0-100; R.sub.1, R.sub.2, R.sub.5, and R.sub.6 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; and R.sub.3 and P.sub.4 are each independently selected from the group consisting of --C.sub.2 H.sub.4 --; and --C.sub.3 H.sub.6 --; and the diasteromeric salts thereof.

Abstract: Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000 and m is 1-100; and R.sub.1 and R.sub.2 are each independently selected from the group --C.sub.2 H.sub.4 -- and --C.sub.3 H.sub.6 --; and R.sub.3 is from the group consisting of: ##STR2## and the diasteromeric salts thereof.

Abstract: The present invention provides a process for preparing optically active 2-arylcyclohexanol and its esters and ethers and which process comprises the step of subjecting 1-aryl-cyclohexane-1,2 diol and its diethers and diesters to hydrogenolysis conditions to form said cyclohexanol and its esters and ethers.

Abstract: The present invention provides super absorbent materials in the form of sheets or fibers made from high melting polymers and having super absorbent polymer material dispersed uniformly throughout. The materials are capable of incorporating large amounts of super absorbent polymer and so demonstrate substantially improved absorbency and retention properties.The superabsorbent materials comprise a matrix material polymer selected from the group consisting of cellulose esters, acrylic acid esters, polyvinyl esters and copolymers of same, particles of superabsorbent material distributed throughout the matrix material and a plasticizer mixed into the matrix material.

Abstract: An apparatus for crimping continuous tow of textile material and application of the finish to the crimped continuous tow, including a pair of rollers and a stuffer box chamber having two regions therein. In particular, the stuffer box chamber has a first region for crimping the tow and a larger second region for application of a finish to the tow. Using the novel apparatus to crimp the tow and apply finish thereto, improves adherence of the finish to the tow.

Abstract: A novel metering valve is used to split the streams in which a continuous fluid stream passes unregulated through the valve along a primary flow path. A second stream is formed by passing a small portion of the fluid in the primary flow path through a passage in a valve seat. The fluid passing through the valve seat is precisely metered by a valve stem which engages the valve seat passage to control the amount of fluid diverted from the primary flow path. Both fluid from the unregulated primary flow path and through the metered flow path flow simultaneously from the valve. The metering valve of the invention has particular use in processes for dividing a condensed distillate stream into a product stream and a reflux stream.

Abstract: Blends of poly(arylene sulfide)s, liquid crystalline polyesters and liquid crystalline poly(esteramide)s exhibit a lower melt viscosity than would be expected based on the melt viscosities of analogous blends of liquid crystalline polyesters and poly(arylene sulfide)s that have the same overall amount of liquid crystalline polymer. The viscosities are reduced over a wide range of compositions. Such blends are useful in the manufacture of electronic components, particularly connectors.

Abstract: A process for recovering dimethyl terephthalate (DMT) is disclosed. The process includes the steps of: (a) providing a DMT stream, the DMT stream including DMT, catalyst, and ethylene glycol; (b) adding a solvent to the DMT stream, the solvent being immiscible with water and miscible with DMT; (c) adding water to the DMT stream; and (d) forming two phases, a first phase of the solvent and DMT, and a second phase of water, ethylene glycol, and catalyst.

Abstract: A process for recycling by-products produced from a process for the manufacture of polyethylene terephthalate is disclosed. The process includes the steps of: (a) providing ethylene glycol distillation bottoms from an ethylene glycol recovery unit associated with the manufacture of polyethylene terephthalate, the bottoms containing an alkali metal organic salt produced during the manufacture of polyethylene terephthalate, the alkali metal organic salt being in excess of about 100 ppm of the bottoms; (b) stripping the alkali metal from the organic acid by use of a strong acid; and (c) depolymerizing the organic acid.

Abstract: Fiber reactive dyes of the anthraquinone type which provide brilliant violet colors without metal complexing. These dyes may be represented by the formula: ##STR1## wherein W is selected from NR.sub.2 and oxygen;R is independently selected from hydrogen, C.sub.1 -C.sub.6 alkyl;C.sub.1 -C.sub.6 alkoxy, sulfo and carboxy;R.sub.1 is selected from hydrogen, C.sub.1 -C.sub.6 alkyl and phenyl;R.sub.2 is selected from hydrogen and C.sub.1 -C.sub.6 alkyl;R.sub.3 is selected from hydrogen, and C.sub.1 -C.sub.4 alkyl;n is an integer of 1 or 2; andY is CH.dbd.CH.sub.2, or CH.sub.2 CH.sub.2 Z wherein Z is a group capable of being split off by the action of an alkali reagent.

Abstract: The present invention pertains to a method of preparing substituted and unsubstituted N-hydroxy-2-aminobutane diacid derivatives which can be dehydrated to 2-aminobut-2-ene dioic acid derivatives, which can be subsequently converted to pyridine and quinoline derivatives.

Abstract: A process is provided whereby S(+)-ibuprofen or R(-)-ibuprofen L-lysinate salt is produced by selective precipitation from a mixture containing enantiomers of ibuprofen and L-lysine. The quantity of L-lysine is not more than about a molar equivalent of the quantity of one of the enantiomers in the ibuprofen enantiomeric mixture. Upon precipitation of one ibuprofen enantiomer from the mixture, the overall precipitate and reaction mixture can be held for a sufficient period of time at a second temperature to allow the first precipitate to redissolve into the reaction mixture and the other ibuprofen enantiomer to precipitate out of the mixture in the salt form. Optically active ibuprofen is racemized by being heated at 100.degree. C. to 300.degree. C. in the substantial absence of other materials.

Abstract: Amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, which have the general formula: ##STR1## wherein n is 1-1000 and m is 1-100; R.sub.1 and R.sub.2 are from the group --C.sub.2 H.sub.4 -- and C.sub.3 H.sub.6 --; and R.sub.3 and R.sub.4 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; and the diasteromeric salts thereof.

Abstract: A process for converting a normally positive working photosensitive composition to a negative working composition. One forms a composition containing an alkali soluble resin, a 1,2 quinone diazide-4-sulfonyl compound and an acid catalyzed crosslinker in a solvent mixture. After drying and imagewise exposing, the composition is baked and developed to produce a negative image.

Abstract: A method is provided for purifying crude N-acetyl-para-aminophenol (APAP) containing color bodies or their precursors, the method comprising: a) forming a solution of the crude APAP; and b) subsequently contacting the solution with substoichiometric quantifies of an acetylating agent for a sufficient period of time to convert said color bodies or their precursors to substantially non-color bodies/stable, colorless substances; said quantities of acetylating agent provided is such that substantially none of the APAP is converted to other compounds.

Abstract: Arylketoamines are prepared by reacting arylisonitrosoalkanones with hydrogen in the presence of a transition metal catalyst and a liquid carboxylic acid at a temperature of less than about 60.degree. C.

Abstract: Poly(hydroxystyrene) resins in which a portion of the hydroxyl groups are functionalized with t-butyloxycarbonyl groups ("t-Boc") tend to decompose during drying of the wet solid and on storage in the solid state. Solutions that are more stable than the solid material can be made from the wet freshly synthesized solid by dissolving the wet solid in a solvent that forms an azeotrope with water and then distilling the azeotrope of water and solvent from the solution until the solution contains less than about 1% by weight of water.

Abstract: Acylamides or amine acylate salts of arylalkanolamines are prepared by reacting an arylisonitrosoalkanone with hydrogen and a carboxylic acid, carboxylic acid anhydride or carboxylic acid ester or mixture thereof in the presence of a transition metal catalyst; optionally the product is converted to the corresponding arylalkanolamine hydrochloride salt by reaction of the acylamide or amine acylate salt of the arylalkanolamine with hydrogen chloride in a C.sub.1 -C.sub.3 alkyl alcohol.

Abstract: The present invention provides new polymer compositions which contain novel substituted pyrazines or pyrazine derivatives ("NPD") which are functional and have useful application as a monomer (co-monomer) for a variety of high performance polymers such as polyester, polyarylate, polycarbonate, polyetherketones, epoxides, polyimides, polyamides, and polyamides-imides. These NPD have the general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are defined herein.