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M&T Chemicals, Inc. Patents
Assignee:
M&T Chemicals, Inc.
Address:
Rahway, NJ
No. of patents:
222
Patents:


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Patent Number Title Of Patent Date Issued
RE32935 Non-toxic organotin stabilizers for vinyl chloride polymers May 30, 1989
Vinyl chloride polymers suitable for use in food packaging materials are stabilized against discoloration and embrittlement resulting from exposure to heat using mono-n-octyltin compounds of the general formula H.sub.17 C.sub.8 Sn(SCH.sub.2 COOR').sub.3, wherein R' represents an alkyl ra
RE30677 Silicone containing bis-thioether aromatic amines July 14, 1981
A silicone containing bis-thioether aromatic amine has a chemical structure wherein an aromatic nucleus at each end of the chemical radical is chemically bonded to the remainder of the chemical radical by either sulfur, sulfoxide or sulfone.
5086351 Electrochromic elements, materials for use in such element, processes for making such elements a February 4, 1992
An electrochromic element useful in an electrochromic glass or mirror device and a process for making such element. The element is a five-layered structure including an electrolyte ion conducting layer interposed between first and second inorganic electrochromic layers which are inte
5071592 UV stabilizer composition for surface modification of polymer articles December 10, 1991
An improvement in the process of incorporating a modifier ingredient into the surface region of a resinous article is described herein. The basic process includes immersing the article in a liquid such as water and contacting the immersed article with a solution of a modifier ingredient
4990369 Process for surface modification of polymer articles February 5, 1991
An improvement in the process of incorporating a modifier ingredient into the surface region of a resinous article is described herein. The basic process includes immersing the article in a liquid such as water and contacting the immersed article with a solution of a modifier ingredient
4978576 Surface modified, U.V. stabilized, polyvinyl chloride article December 18, 1990
A surface modified, U.V. stabilized opaque polyvinyl chloride resin article and process for making same is described. The article includes a white pigment, such as titanium oxide, in low amounts. The modified surface is substantially free of residual stabilizer and solvent, and its appea
4954421 Photoflashing a liquid polymer layer on a phototool surface exposed to air September 4, 1990
A liquid photopolymer layer covering a phototool image surface with one surface exposed to air is exposed by radiation through the phototool to partially harden in a pattern defined by the image the photopolymer layer through a part of its thickness. The air exposed surface portion is th
4925739 Surface modified polymer article and process for making same May 15, 1990
A surface modified U.V. stabilized article is described which includes a resinous sheet whose sides are both exposed to the air. The surface regions of both sides of the sheet are substantially fully modified in situ with a stabilizing amount of an ingredient such as a ultraviolet li
4924936 Multiple, parallel packed column vaporizer May 15, 1990
A multiple, parallel packed column vaporizer for vaporizing a chemical having a relatively low decomposition temperature includes a shell; a plurality of parallel, vertically oriented vaporization columns arranged in the shell, each vaporization column having inner walls and upper and
4919972 Process for surface modification of polymer articles April 24, 1990
A composition and process for modifying the surface region of a polymer article. The composition is a mixture of a resin surface modifier ingredient, a resin-swellable organic solvent and a surfactant additive. The composition is contacted with the surface of a resin article, while t
4913082 Process for surface modification of polymer articles April 3, 1990
A process for modifying the surface region of a polymer article by incorporating one or more ingredients therein. Such ingredients may be ultraviolet light stabilizers, antioxidants, anti-static agents, pigments and the like. The polymer article, e.g. a sheet of polyvinyl chloride, is
4888270 Photoprinting process and apparatus for exposing paste consistency photopolymers December 19, 1989
Paste-consistency photopolymer is imaged onto printed wiring boards by coating the board overall and positioning the photographic film over the board in register and off-contact. A resilient blade is pressed against the phototool at one end of the board and drawn across the surface, thus
4879970 Coating hood for applying coating compound on containers November 14, 1989
A coating hood for applying uniform protective coatings to glass containers, while minimizing the escape of noxious fumes from the hood to the ambient atmosphere, which includes a pair of spaced side walls having inclined end surfaces adjacent the entrance and exit ends to reduce the
4874799 Aqueous akaline developable, UV curable urethane acrylate compounds and compositions useful for October 17, 1989
Aqueous alkaline developable, UV curable urethane acrylate compounds and compositions are particularly useful for making flexible, 100% solids, solvent-free solder mask coatings which are characterized by having screen-printable viscosities, rapid developability and advantageous perf
4868011 Process for surface modification of polymer articles September 19, 1989
An improvement in the process of incorporating a modifier ingredient into the surface region of a resinous article is described herein. The basic process includes immersing the article in a liquid such as water and contacting the immersed article with a solution of a modifier ingredient
4865880 Surface modified, U.V. stabilized, polyvinyl chloride article September 12, 1989
A surface modified, U.V. stabilized opaque polyvinyl chloride resin article and process for making same is described. The article includes a white pigment, such as titanium dioxide, in low amounts. The modified surface is substantially free of residual stabilizer and solvent, and its app
4865700 Plating bath and process for making microporous chromium deposits September 12, 1989
A composition and method are disclosed for electroplating microporous chromium layers without the requirement that microparticles be present either in the chromium layer or in a sublayer. A composition used contains chromic acid and sulfoacetic acid and, optionally, dichromate ion, sulfa
4863358 Submersible positive displacement piston pump September 5, 1989
A submersible positive displacement piston pump includes a cylinder for insertion within a body of liquid, the cylinder including a working end and an opposite end, an inlet port, an outlet port and a working chamber bounded by the outlet port and the working end; a piston rotatably and
4849321 UV curable compositions for making improved solder mask coatings July 18, 1989
A composition including a mixture of UV curable urethane acrylate and a urethane diacrylate compounds provides an aqueous alkaline developable, flexible solder mask having excellent electrical insulation resistance under hydrolytic testing conditions at elevated temperatures.
4836897 Baths and process for electroplating hard,adherent,smooth, wear resistant and corrosion resistan June 6, 1989
Corrosion resistant electrodeposited chromium layers, processes for their electrodepositions and plating baths suitable for use therein are disclosed. The corrosion resistant chromium layers also are bright, adherent, smooth, hard, wear resistant, and exhibit a low coefficient of fri
4834992 Non-toxic organotin stabilizers for vinyl chloride polymers May 30, 1989
Organotin stabilizer compositions containing more than 5 percent by weight of monoalkyl tin derivatives of mercaptoacetic acid esters, such as mono-n-octyltin-S,S',S"-tris(isooctyl mercaptoacetate), are useful as food-grade stabilizers for vinyl halide polymers.
4828656 High performance electrodeposited chromium layers May 9, 1989
A chromium plating bath which consists essentially of chromic acid and 40-100 g/l of sulfoacetic acid, and which is substantially free of carboxylic acid, fluoride, iodide, bromide and selenium ions, is described herein.
4822843 Polysiloxane-modified polyimidesulfone or polyimideketone molding composition April 18, 1989
Polyimidesulfone and polyimideketone resins are rendered moldable while still retaining solvent resistance and high temperature physical and mechanical properties by incorporating an aromatic diaminopolysiloxane at a level between about 1 and about 20 mole % of the total diamine content,
4810337 Method of treating a chromium electroplating bath which contains an alkyl sulfonic acid to preve March 7, 1989
A method of treating a chromium electroplating bath which contains an alkyl sulfonic acid to prevent heavy scale build-up of lead dioxide on lead or lead alloy anodes used therein is described herein. The method involves applying a voltage across the electrodes in said bath which is grea
4810336 Electroplating bath and process for depositing functional, at high efficiencies, chromium which March 7, 1989
A functional chromium electroplating bath and process is disclosed. The bath comprises chromic acid, sulfoacetic acid, iodate and a nitrogen organic compound. Such a bath gives chromium deposits which are both bright and adherent.
4801728 Omega-phase catalyzed chemical reactions January 31, 1989
The present invention relates to reaction mixtures and processes which employ an .omega.-phase catalyst for carrying out displacement reactions at a substantially enhanced rate.
4794061 Device for aligning a photomask onto a printed wiring board December 27, 1988
An apparatus for applying a phototool to a light sensitive substrate by means of a roller for applying the phototool to the substrate and a vacuum restraining means for restraining the phototool to maintain it under tension during application of the phototool to the substrate.
4792465 Process for making surface modified U.V. stabilized PVC articles December 20, 1988
What is described herein is a process of making a U.V. stabilized PVC article wherein the surface region of the article is modified with a U.V. stabilizer and the treated surface is substantially free of residual stabilizer thereon. The process includes the steps of (a) applying a so
4788079 Method of making haze-free tin oxide coatings November 29, 1988
Haze-free tin oxide coatings are made from an organotin compound which ordinarily gives only hazy coatings. The improvement comprises first forming an undercoat of a haze-free tin oxide film on a substrate, preferably by decomposition of monophenyltin trichloride. Thereafter the tin
4786378 Chromium electroplating baths having reduced weight loss of lead and lead alloy anodes November 22, 1988
Weight loss of lead and lead alloy anodes is substantially reduced by including bismuth arsenic or antimony ions in the plating bath.
4775552 Nebulizable coating compositions for producing high quality, high performance fluorine-doped tin October 4, 1988
Improved nebulizable coating compositions for making high quality, fluorine-doped tin oxide coatings having a low sheet resistance and high visible light transmission includes a mixture of less than 95 wt. % of monobutyltin trichloride, less than 50 wt. % of an inorganic fluorine dop
4770905 Process for surface modification of polymer articles September 13, 1988
A process for modifying the surface region of a polymer article by incorporating one or more ingredients therein. Such ingredients may be ultraviolet light stabilizers, antioxidants, anti-static agents, pigments and the like. The polymer article, e.g. a sheet of polyvinyl chloride, is
4764262 High quality, bright nickel plating August 16, 1988
An improved process and composition for the preparation of nickel or nickel alloy electrodeposits is provided. The process involves passing current from a anode to a cathode through an aqueous acidic electroplating solution containing zinc ions as impurities with the combination of at
4761363 UV curable compositions for making improved solder mask coatings August 2, 1988
A composition including a mixture of UV curable urethane acrylate and a urethane diacrylate compounds provides an aqueous alkaline developable, flexible solder mask having excellent electrical insulation resistance under hydrolytic testing conditions at elevated temperatures.
4755263 Process of electroplating an adherent chromium electrodeposit on a chromium substrate July 5, 1988
What is described herein is a method of electroplating an adherent chromium deposit on a chromium substrate. The process is characterized by chemically oxidizing the chromium substrate before starting the electrodeposition of chromium thereon. A suitable chemical oxidizing agent is h
4753860 UV curable compositions for making improved solder mask coatings June 28, 1988
A composition including a mixture of UV curable urethane acrylate and a urethane diacrylate compounds provides an aqueous alkaline developable, flexible solder mask having excellent electrical insulation resistance under hydrolytic testing conditions at elevated temperatures.
4752553 High resolution solder mask photopolymers for screen coating over circuit traces June 21, 1988
High photo resolution of over 100 lines is obtained for solder masks of thicknesses greater than 0.002 in. (0.005 cm) with liquid photopolymers of special compositions deposited from mesh screens over printed wiring board traces and photoexposed with a phototool image in contact with the
4743506 Tin oxide coated article May 10, 1988
A tin oxide coated article characterized by including a transparent, haze-free tin oxide coating on a substrate, such as glass. The tin oxide coating is formed by deposition from a liquid coating composition including an organotin compound, such as an alkyltin trichloride, and a haze
4737388 Non-iridescent, haze-free infrared reflecting coated glass structures April 12, 1988
Transparent, non-iridescent, infrared-reflecting glass window structures which are haze-free are provided herein. These structures comprise a glass sheet, an infrared-reflecting tin oxide coating on one major surface of the sheet, and an iridescence-reducing tin oxide coating on the oppo
4734464 Method of preparing modified polyimides or poly(amide-tmides) March 29, 1988
Polyimides or poly(amide-imides), especially those containing a polysiloxane unit are improved by heating such polymers or their polyamic acid precursors with a polyfunctional aromatic compound. The polyfunctional aromatic compound is one which contains at least two reactive groups w
4731462 Organotin compounds containing fluorine useful for forming fluorine-doped tin oxide coating March 15, 1988
This invention relates to organotin compounds containing fluorine which are particularly useful for forming fluorine-doped tin oxide coatings by the chemical vapor deposition method. In the preferred embodiment, the compound is monobutyldichlorotin trifluoroacetate, which is prepared by
4731256 Liquid coating composition for producing high quality, high performance fluorine-doped tin oxide March 15, 1988
An improved liquid coating composition for producing high quality, high performance fluorine-doped tin oxide coatings by chemical vapor deposition includes the reaction product of a reactive fluorine dopant compound and an organotin compound, preferably 1-30 wt. % of the fluorine dopant
4731167 Method of electroplating an adherent chromium electrodeposit on a chromium substrate March 15, 1988
What is described herein is an improved method of electroplating an adherent chromium deposit on a chromium substrate. The process is characterized by chemically oxidizing the chromium substrate before starting the electrodeposition of chromium thereon. A suitable chemical oxidizing
4731166 Method of producing an adherent, smooth deposit of chromium on a nodular iron substrate March 15, 1988
An adherent, smooth electrodeposit of chromium is produced on a nodular cast iron substrate from a chromium plating bath. The desired deposit is provided herein by activating the substrate, subjecting the activated substrate to an ultrasonic treatment, and thereafter plating chromium fro
4726319 Apparatus and method for coating optical fibers February 23, 1988
Apparatus for coating an optical fiber with a metal oxide coating material in vapor form, includes a coating chamber through which the fiber moves, the coating chamber including an inlet supplied with the coating material in vapor form, a circumferential passage for supplying the coating
4717740 Aqueous alkaline developable, UV curable urethane acrylate compounds and compositions useful for January 5, 1988
An aqueous alkaline developable UV curable urethane acrylate compound and composition are used for making flexible solder mask coatings, characterized by rapid development in an aqueous, alkaline medium, and advantageous performance properties.
4715116 Production of dielectric boards December 29, 1987
Copper substantially free of micro-pores is electrodeposited on a polished surface of a stainless steel, titanium, or chromium-plated steel press plate. The copper layer is then provided with a matte surface of copper of dendritic structure which is subsequently bonded to a dielectric ma
4713298 Printed circuit boards having improved adhesion between solder mask and metal December 15, 1987
A printed circuit board having improved adhesion between solder mask and metal includes a primer film on the metal deposited from an aqueous solution which includes 0.01 to 10% by weight of a carboxyl-containing polymer or copolymer.
4711705 Activation composition and method for forming adherent chromium electrodeposits on ferrous metal December 8, 1987
An activation composition and method for producing chromium electrodeposits having excellent adhesion on both soft and hardened ferrous substrates from high energy efficient chromium baths is described. The activation composition is a solution containing iodate and fluoroborate ions,
4698284 Device for aligning a photomask onto a printed wiring board October 6, 1987
An apparatus for applying a phototool to a light sensitive substrate by means of a roller for applying the phototool to the substrate and a vacuum restraining means for restraining the phototool to maintain it under tension during application of the phototool to the substrate.
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