Abstract: Disclosed herein is an adhesive composition for clutch disc application comprising of an epoxy resin of bisphenol A and epichlorohydrin, partially hydrogenated carboxylated nitrile butadiene rubber (HX-NBR) in solid form as a toughening agent in the ratio 80:20, and optionally with additives to obtain improved lap shear strength and cushioning properties.

Abstract: A process for the synthesis of 100% optically pure L(+)-lactide catalyzed by zinc and tin metal catalysts of less than 150 micron particle size is disclosed. The L-lactide obtained was further purified to obtain lactide of 100% optical purity and acid impurities less than 10 meq/kg.

Abstract: Copolyester with improved transition temperature, melting temperature and crystallinity including units derived from lactic acid and isosorbide, where the ratio of lactic acid to isosorbide ranges from 99:1 to 50:50.

Abstract: Disclosed herein is an adhesive composition for clutch disc application comprising of an epoxy resin of bisphenol A and epichlotrohydrin, partially hydrogenated carboxylated nitrile butadiene rubber (HX-NBR) in solid form as a toughening agent in the ratio 80:20, and optionally with additives to obtain improved lap shear strength and cushioning properties.

Abstract: Copolyester with improved transition temperature, melting temperature and crystallinity including units derived from lactic acid and isosorbide, where the ratio of lactic acid to isosorbide ranges from 99:1 to 50:50.

Abstract: A process for the synthesis of 100% optically pure L(+)-lactide catalyzed by zinc and tin metal catalysts of less than 150 micron particle size is disclosed. The L-lactide obtained was further purified to obtain lactide of 100% optical purity and acid impurities less than 10 meq/kg.

Abstract: The present invention relates to novel N-Poly (alkenyl) acryl amides of formula (1) where in m=1-8, n=2-100 and to a process for preparation thereof and process for preparation thereof by reacting an unsaturated poly(olefin) of the formula CnH2m where n and m are as given above with acrylonitrile in presence of an acid catalyst.

Abstract: The present invention relates to novel N-Poly (alkenyl) acryl amides of formula (1) wherein m=1-8, n=2-100 and to a process for preparation thereof and process for preparation thereof by reacting an unsaturated poly(olefin) of the formula CnH2m where n and m are as given above with acrylonitrile in presence of an acid catalyst.

Abstract: The present invention relates to novel N-Poly (alkenyl) acryl amides of formula (1) where in m=1?8, n=2?100 and to a process for preparation thereof and process for preparation thereof by reacting an unsaturated poly(olefin) of the formula CnH2m where n and m are as given above with acrylonitrile in presence of an acid catalyst.

Abstract: This invention relates to a process for the production of 3,3?,4,4?-tetraminobiphenyl (TAB) of formula (1) from non-carcinogenic raw materials, employing Suzuki type biaryl coupling as the key step. More particularly, it relates to a three steps process for the production of TAB comprising biaryl aryl coupling of 2-nitro-4-bromoacetamide (NBA) of formula (2) catalyzed by sulfilimine based palladacycles as catalysts followed by the basic hydrolysis of acetyl group and the reduction of nitro groups with conventional reducing agents.

Abstract: This invention relates to a process for the production of 3,3?,4,4?-tetraminobiphenyl (TAB) of formula (1) from non-carcinogenic raw materials, employing Suzuki type biaryl coupling as the key step. sMore particularly, it relates to a three steps process for the production of TAB comprising biaryl aryl coupling of 2-nitro-4-bromoacetanilide (NBA) of formula (2) catalyzed by sulfilimine based palladacycles as catalysts followed by the basic hydrolysis of acetyl group and the reduction of nitro groups with conventional reducing agents.

Abstract: A novel compound bearing urethane linkage of formula as shown herebelow, which is an adduct of ricinoleic ester and isocyanate, useful as a plasticizer for polyvinylchloride (PVC) and a process for the preparing the compound bearing urethane linkage by reacting fatty acid esters bearing hydroxyl groups with an organic isocyanate in the presence of a catalyst at a temperature in the range of 30°-100° C.

Abstract: A novel compound bearing urethane linkage of formula as shown herebelow, which is an adduct of ricinoleic ester and isocyanate, useful as a plasticizer for polyvinylchloride (PVC) and a process for the preparing the compound bearing urethane linkage by reacting fatty acid esters bearing hydroxyl groups with an organic isocyanate in die presence of a catalyst at a temperature in the range of 30.degree.-100.degree. C.

Abstract: A novel compound bearing urethane linkage of formula as shown herebelow, which is an adduct of ricinoleic ester and isocyanate, useful as a plasticizer for polyvinylchloride (PVC) and a process for the preparing the compound bearing urethane linkage by reacting fatty acid esters bearing hydroxyl groups with an organic isocyanate in the presence of a catalyst at a temperature in the range of 30.degree.-100.degree. C.

Abstract: A process for the preparation of mono-alkylcarbonate of bisphenols of the formula ##STR1## wherein R.sub.1 represents ispropylidene, hexa-fluoroisopropylidene, cyclohexane, sulphone, ketone, ether, phthaline, phthalimide and R.sub.2 represents an alkyl group with 1-8 carbon atoms the alkyl group being ethyl, propyl, butyl, hexyl, isopropyl, iso-butyl, tert-butyl, cyclohexyl which comprises reacting bisphenols of the formula ##STR2## where R.sub.1 represents ispropylidene, hexa-fluoroisopropylidene, cyclohexane, sulphone, ketone, ether, phthaline, phthalimide with dialkylcarbonates in presence of a catalyst selected from organometallic compounds of tin and titanium under inert atmosphere at a temperature in the range of 80.degree.-150.degree.C.

Abstract: The present invention relates to a process for the conversion of poly(ethylene terephthalate) waste to poly(alkylene terephthalate) useful as engineering thermoplastic, which comprises reacting Poly(ethylene terephthalate) powder with a diol containing 3-12 carbon atoms in the liquid phase in the presence of a catalyst at a temperature in the range 180.degree.-270.degree. C. under reduced pressure and inert atmosphere.