Isp Investments Inc.

Gaf Chemicals Corporation

Gaf Corporation

Paul D Taylor

Kolazi S Narayanan

Jeffrey S Plotkin

James A Dougherty

Fulvio J Vara

Kou-Chang Liu

Waldo R De Thomas

Terry E Smith

John J Merianos

Jeffrey M Cohen

Russell B Biss

William L Mandella

Donald W Buchanan, Jr

Robert B Login

Yoon T Kwak

Susan Y Tseng

Yuanzhen Zhong

Drupesh Patel

John G Mc Kittrick

Krishnamurthy Nacharaju

Mark M Miller

William James Swatos

Mark J Cooney

Hemant Parikh

Heinn F Tomfohrde, Iii

Michael Aversa

Donald Buchanan

Larry A Crabtree

Francis B Minnock

A process for the synthesis of linear &#x3b1;,&#x3c9;-diolefins from an allylic substrate comprises the steps of a) forming the bis-Grignard reagent XMgCH(CH)CHMgX from an &#x3b1;,&#x3c9;-acyclic dihalide with X being a halogen; b) preparing a solution comprising an allylic substrate and a copper catalyst; c) catalyzing a coupling reaction by adding to the solution of step (b) the bis-Grignard reagent of step (a); and d) isolating and purifying the &#x3b1;,&#x3c9;-olefin coupling reaction product.

Method for the production of &#x3b1;, &#x3c9;-olefins by using the copper catalyzed coupling reaction of a Grignard reagent with an allylic substrate

A process for making high specific viscosity copolymers of maleic anhydride and an alkyl vinyl either having as specific viscosity of at least 7, preferably 10-50, are made by copolymerizing maleic anhydride and an alkly vinyl ether monomers in the presence of added acetylene.

Process for making copolymers of maleic anhydride and alkyl vinyl ether of high specific viscosity

Vinyl pyrrolidone/vinyl acetate copolymers having a very low residual vinyl pyrrolidone monomer level, i.e. &#x3c;100 ppm, preferably only 50 ppm, are made within an advantageously short production cycle, by post-treating an aqueous solution of the copolymer at an elevated temperature of about 120&#x2013;150&#xb0; C., preferably about 130&#xb0; C., under pressure, in the presence of a high temperature initiator, for a period of about 1&#x2013;4 hours, preferably 2 hours.

Process for making vinyl pyrrolidone/vinyl acetate copolymers having a very low residual vinyl pyrrolidone monomer level within a short production cycle

This invention relates to the polyalk-1-enyl ethers having the formula ##STR1## which is the reaction product of a hydroxylated compound and an alk-1-enyloxy oxirane and to the process for preparing the polyalk-1-enyl ether product.

Polyalk-1-enyl ethers

This invention relates to a liquid phase process for producing 2-pyrrolidone in high yield and selectivity in the absence of catalyst and extraneous solvents which involves contacting ammonia with butyrolactone in a molar ratio of from 0.5:1 to 0.85:1 at high temperature and pressure sufficient to maintain the liquid phase.

Non-catalytic liquid phase conversion of butyrolactone and ammonia to

This invention relates to radiation curable alk-1-enyloxy carbonate reaction products of a hydroxylated compound having the formula A-ROH and a dialk-1-enyloxy carbonate having the formula ##STR1## wherein R is a polymeric radical selected from the group of polyester, polyacetal, polyurethane, polyether, and polycarbonate, said polymers containing from about 10 to 50 repeating monomer units;

Alk-1-enyloxy carbonates

This invention relates to alkenyl ether polycarbonates having the formula ##STR1## wherein A is selected from the group consisting of lower alkyl and R'HC.dbd.CHOR--, R and R' are each independently a divalent radical having from 2 to 20 carbon atoms and are selected from the group of alkylene, mono- or poly- alkoxylated alkylene, alkenylene, alkynylene, arylene, alkarylene and aralkylene radicals, which radicals are optionally substituted with halo, alkyl, cyano, nitro or alkoxy; R' is hydrogen or lower alkyl; (n) has a value of from 1 to 10 and (m) has a value of from 0 to 10; with the proviso that R' contains at least 3 carbon atoms when m is zero. The invention also concerns the preparation and use of said alkenyl ether polycarbonates.

Alkenyl ether polycarbonates

Vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone is achieved in a conversion of 95% or more and a selectivity of 80% or more during a prolonged period of production. The process uses an activated catalyst prepared by reducing a catalyst composition comprising 30-65% by weight of CuO, 18-50% by weight of ZnO and 8-22% by weight of Al.sub.2 O.sub.3, and activating the reduced catalyst composition in hydrogen at an activation temperature of at least 400.degree. C., preferably 400.degree. to 525.degree. C., and optimally about 425.degree. C. The process suitably is carried out under predetermined and advantageous process conditions, including a defined molar ratio of hydrogen to maleic anhydride in the vapor reactant stream, a selected pressure during hydrogenation, a defined feed rate space velocity, a predetermined contact time, and a suitable reaction temperature.

Process of vapor phase catalytic hydrogenation of maleic anhydride to

This invention relates to non-polymeric, asymmetrical, low freezing, high boiling, aliphatic compounds containing from 2 to 5 pyrrolidonyl rings and from 13 to 40 carbon atoms which melt below 0.degree. C. and which boil above 300.degree. C. at atmospheric pressure and to the synthesis and use of said liquid polypyrrolidonyl compounds.

Asymmetrical polypyrrolidonyl compounds having a wide liquid range

This invention relates to an improved process for producing a clear solution of vinylpyrrolidone (VP) and vinyl acetate (VA) monomers which comprises, in an anhydrous system, (a) reacting a C.sub.2 to C.sub.3 alcoholic solution containing said VA monomer and between about 60 and about 80 wt. % portion of total VP monomer in the presence of between about 0.05 and about 0.3 wt. % of a free radical initiator selected from the group consisting of tertamylperoxy pivalate and 2,2-azobis(2-methylbutyronitrile) or a mixture thereof for a period of from about 5 to about 10 hours, at a temperature between about 60.degree. and about 110.degree. C.; (b) gradually adding the remaining VP monomer in C.sub.2 to C.sub.3 alcohol solution at reaction temperature after the addition of the VA monomer is complete; (c) raising the temperature of the resulting reaction mixture to between about 110.degree. and about 150.degree. C.; (d) continuing the polymerization reaction at said higher temperature in the presence of from about 0.11 to about 0.6 wt. %, based on total monomers, of 2,5-dimethyl-2,5-bis(tert-butylperoxy) hexane and (e) cooling the resulting reaction mixture and recovering a homogeneous VP/VA copolymer C.sub.2 to C.sub.3 alcohol solution containing less than 100 ppm of residual vinylpyrrolidone monomer or vinyl acetate residual monomer.

Process for the preparation of vinylpyrrolidone/vinyl acetate copolymers

This invention relates to radiation curable alk-1-enyloxy carbonate reaction products of a polyhydroxylated compound having the formula ROH and a dialk-1-enyloxy carbonate having the formula ##STR1## wherein R is a C.sub.3 to C.sub.50 saturated or unsaturated, linear, branched or cyclic polyhydroxylated hydrocarbon radical optionally substituted with halo, alkoxy, lower alkyl, cyano or nitro;

This invention relates to alkenyl ether polycarbonates having the formula ##STR1## wherein A is selected from the group consisting of lower alkyl and R'HC.dbd.CHOR--; R and R' are each independently a divalent radical having from 2 to 20 carbon atoms and are selected from the group of alkylene, mono- or poly- alkoxylated alkylene, alkenylene, alkynylene, arylene, alkarylene and aralkylene radicals, which radicals are optionally substituted with halo, alkyl, cyano, nitro or alkoxy; R' is hydrogen or lower alkyl; (n) has a value of from 1 to 10 and (m) has a value of from 0 to 10; with the proviso that R' contains at least 3 carbon atoms when m is zero. The invention also concerns the preparation and use of said alkenyl ether polycarbonates.

This invention relates to an alk-1-enyl ether having the formula ##STR1## and to the process for its preparation.

Alk-1-enyl ethers

Vinylpyrrolidone and vinylcaprolactam residual monomers are removed from their respective crosslinked and non-crosslinked, vinyl lactam homopolymers, vinyl lactam copolymers and vinyl lactam terpolymers containing substantially contaminating amounts of residual vinylpyrrolidone or vinylcaprolactam monomer by a process which comprises (1) adjusting the pH of the vinyl lactam polymer slurry containing from about 1 to about 30 wt. % solids or a solution of the vinyl lactam polymer to a pH of less than 5 with an acid selected from the group of sulfuric, phosphoric, carbonic, formic and acetic acids and mixtures thereof; (2) reacting the acid with the residual vinyl lactam monomer at a temperature of from about 50.degree. to about 150.degree. C. for a period of from about 0.5 to about 10 hours until the residual monomer is reduced to less than 5 ppm and (3) drying said solids to a substantially pure vinyl lactam polymeric product in a free-flowing particulate state.

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West Milford, NJ, United States of America

Paul D Taylor