Isp Investments Inc.

Gaf Chemicals Corporation

The Morgan Crucible Company Plc

Mohammed Tazi

Robert B Login

Stephen L Kopolow

Michael W Helioff

Yoon T Kwak

Krystyna Plochocka

William J Burlant

Carmen D Bires

Edward W Walls, Jr

Rama K Haldar

Nikhil K Kundel

Jui-Chang Chuang

Balgopal Gangadharan

John J Ardan

John J Merianos

Ratan K Chaudhuri

Lowell R Anderson

William E Prosise

Chi-San Wu

John N Zamora

Stephen C Johnson

Stephen L Shernov

Harold James Harwood

Alan J Carlin

John F Tancredi

Dinesh Jaiswal

David W Hilbig

A composition of matter useful particularly as a desoldering flux is disclosed. In some embodiments the invention combines a 'low solids' flux normally provided for automatic wave and other soldering equipment with additional naturally-occurring rosin to create a composition capable of use with copper desoldering braid and manual desoldering operations.

Flux

A pharmaceutical tablet is provided herein having an effective dissolution rate. The tablet contains a pharmaceutically-active ingredient and a substantially linear, i.e. non-crosslinked K-30 to K-120 PVP as a binding agent. The PVP used herein is made by an initiated polymerization process in which vinyl pyrrolidone monomer is polymerized in the presence of an initiator which produces a linear PVP polymerization, i.e. is a poor hydrogen abstractor of PVP polymer backbones, which would produce a disadvantageous crosslinked PVP product. Suitable initiators include low energy peroxyester free radical initiators, such as t-amylperoxy pivalate, an azo initiator, or a redox initiator which can perform at low temperatures. Preferably the residual initiator level in the PVP is reduced to less than 500 ppm, thereby further precluding the possibility of crosslinking of the PVP polymer during the shelf-life of the tablet.

Pharmaceutical tablet with PVP having enhanced drug dissolution rate

What is provided herein are conditioning hair care compositions comprising (a) a stabilized silicone product obtained by in situ polymerization of a water-soluble vinyl monomer, preferably vinylpyrrolidone, in the presence of discrete microdroplets of a silicone oil in water, (b) an emulsifiers, (c) a thickener, optionally, (d) a cationic surfactant, and the balance being (e) water.

Conditioning hair care compositions

What is provided herein are conditioning shampoo hair care compositions comprising (a) a stabilized silicone product obtained by in situ polymerization of a water-soluble vinyl monomer, preferably vinylpyrrolidone, in the presence of discrete microdroplets of a silicone oil in water, (b) a surfactant, (c) a foam stabilizer, and the balance being (d) water.

Conditioning shampoo hair care compositions

A hair spray composition is provided herein which is capable of delivering a fine finishing mist at a high resin solids level. The composition is substantially moisture resistant, provides a stiff resin film having excellent hair holding power, and has a relatively low concentration of volatile organic compounds therein. The composition of the invention attains its unique attributes by including therein a water soluble or dispersible alkylated polyvinylpyrrolidone (PVP) copolymer powders having a predetermined blend of two monomer components, one being PVP having a defined molecular weight (K-value 15-120, preferably 30-90) and concentration (80-99%, preferably 90-95%) and the other being an alkylene having a selected number of carbon atoms (C.sub.4 -C.sub.10, preferably (C.sub.6 -C.sub.8), linear or branched, in a defined concentration (1-20%, preferably 5-10%).

Hair spra composition containing water soluble alkylated PVP copolymers

There is described a process for the production of an ethanol solution of an ethyl or butyl half-ester copolymer of maleic anhydride and a methyl vinyl ether which comprises: (a) copolymerizing the monomers in acetone as solvent by simultaneously feeding molten maleic anhydride, a molar excess of methyl vinyl ether, and a solution of a free radical initiator in acetone, into a reactor precharged with acetone, at about 68.degree.-85.degree. C., preferably 70.degree.-80.degree. C.; (b) esterifying the acetone solution of said copolymer with ethanol or butanol; and then (c) solvent exchanging ethanol for acetone by continuously injecting vapors of ethanol at about 85.degree.-95.degree. C. into said copolymer solution while simultaneously distilling out acetone therefrom at atmospheric pressure.

Process for production of an ethanol solution of the ethyl or butyl

The present invention provides a polymer hair fixative comprising vinyl caprolactam, vinyl pyrrolidone, dimethylaminoethyl methacrylate and acrylate acid, in the form of sodium acrylate, an aqueous-based solution process for making such polymers, and water-based hair spray compositions including such polymer fixatives which meet VOC standards.

Polymer hair fixatives, aqueous-based solution process for making same

A charge imbalanced composition comprising:

Charge imbalanced polyelectrolyte composition

The present invention provides a terpolymer hair fixative comprising vinyl caprolactam, vinyl pyrrolidone and methacryloamidopropyl trimethylammonium chloride, an aqueous solution process for making such terpolymers, and water-based hair spray compositions which meet VOC standards.

Terpolymer hair fixatives, aqueous solution process for making same and

What is provided herein is an electrically conductive gel composition for use in establishing a low resistance contact between an electrode and a biological body, comprising a clear, aqueous solution of about 0.1 to 3% by weight of a crosslinked, neutralized copolymer of maleic anhydride and a C.sub.1 -C.sub.5 alkyl vinyl ether. In the preferred form of the invention, the composition contains about 0.1 to 3% by weight of the crosslinked, neutralized copolymer which contains about 1 to 5 mole % based on the alkyl vinyl ether of a crosslinking agent.

Electrically conductive gel composition

What is provided herein are conditioning hair care compositions comprising (a) a stabilized silicone product obtained by in situ polymerization of a water-soluble vinyl monomer, preferably vinylpyrrolidone, in the presence of discrete microdroplets of a silicone oil in water, (b) a surfactant, and the balance being (c) water.

What is provided herein are hair and skin care compositions containing discrete microdroplets of an oil in water stabilized by in situ polymerization of a water-soluble vinyl monomer and a water-soluble acryl comonomer. The stabilized microdroplets are prepared by dispersing the oil in water, adding the water-soluble vinyl monomer, preferably vinylpyrrolidone, with the comonomer, and copolymerizing the monomer and comonomer in situ such that the oil is stabilized in the resulting copolymer solution as discrete microdroplets.

Hair and skin care compositions containing discrete microdroplets of an

A process is described for carrying out aqueous and non-aqueous polymerization of polymerizable monomers, particularly vinyl monomers, and, preferably, vinylpyrrolidone, in the presence of a mixture of a stable, high purity, free-flowing, fine white powder of a substantially anhydrous 1:1 molar ratio complex of polyvinylpyrrolidone-hydrogen peroxide (PVP--H.sub.2 O.sub.2), respectively, and a transition metallic ion, as a free radical initiator, is described herein. Preferred polymerizations are the homopolymerization of vinylpyrrolidone and the copolymerization of maleic anhydride and a C.sub.1 -C.sub.5 alkyl vinyl ether.

Polymerization process using PVP-H.sub.2 O.sub.2 as free radical

Free radical polymerization of monomers in the presence of t-amylperoxy pivalate as the free radical initiator is described. Copolymers of maleic anhydride and a vinyl monomer, e.g. a C.sub.1 -C.sub.5 alkyl vinyl ether, and water soluble polyvinylpyrrolidone, are representative polymers prepared in accordance with the process of the invention.

Polymerization process using tertiary-amylperoxy pivalate as the free

According to this invention, there is provided a denture adhesive which is a mixed partial salt of a copolymer of maleic anhydride and acrylic acid (or methacrylic acid), optionally including a C.sub.1 -C.sub.4 alkyl vinyl ether, having a weight average molecular weight of about 30,000 to 400,000, preferably about 50,000 to 350,000. The copolymer comprises about 10 to 70 mole percent, preferably 20 to 60 mole percent, of maleic anhydride, about 30 to 90 mole percent, preferably 40 to 80 percent, of acrylic acid (or methacrylic acid), and 0 to 25 mole percent of a C.sub.1 -C.sub.4 alkyl vinyl ether.

Growing community of inventors

Wayne, NJ, United States of America

Mohammed Tazi