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WO/1996/037575A1 |
A process for the production of a photochromic product of curing by mixing a mixture comprising a polyfunctional (meth)acrylate monomer (e.g., crude polyalkylene glycol dimethacrylate containing impurities) and a photochromic spiro-oxazi...
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WO/1996/025954A1 |
The invention concerns the use of methylene malonic diester derivatives of general formula (I), in which R1 and R2 have different meanings, in the production of gas-containing particles for use in ultrasound diagnostics, and ultrasound c...
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WO/1996/018714A1 |
A detergent builder comprising a maleic acid copolymer produced by copolymerizing a maleic acid (salt) with comonomers by using both hydrogen peroxide and a persulfate salt as the polymerization initiator and having a weight-average mole...
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WO/1996/018926A1 |
The invention relates to photochromic transparent organic materials particularly useful for the production of photochromic organic ophthalmic lenses. The material includes an optical-quality polymer matrix and at least one coloring agent...
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WO/1996/008522A1 |
A process for producing a multicomponent styrene/(meth)acrylate copolymer by conducting the aqueous solution polymerization of a monomer mixture comprising (1) 30-50 mol.% of a styrene compound, (2) 5-20 mol.% of a half-ester of an 'alph...
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WO/1996/007691A2 |
In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benef...
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WO/1996/006884A1 |
Alkyl cyanoacrylate compositions comprising at least one alkyl cyanoacrylate, a biocompatible plasticizer (preferably dioctyl phthalate), and SO2 as an anionic polymerization inhibitor are provided. These compositions are suitable for to...
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WO/1996/001851A1 |
A polymerization process procedures polymers that are insoluble in a reaction mixture that was homogeneous before the polymer began to form. A dispersing agent in the polymerizing system (i.e., the reaction mixture plus the dispersing ag...
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WO/1996/001850A1 |
A polymerization process produces polymers that are insoluble in a reaction mixture that was homogeneous before the polymer began to form. A dispersing agent in the polymerizing system (i.e., the reaction mixture plus the dispersing agen...
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WO/1995/029942A1 |
A cross-linked acrylic resin produced by (co)polymerizing a monomer composition comprising the following components (A) and/or (B) as the essential ingredient and optionally containing a component (C) comprising a monomer copolymerizable...
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WO/1995/026371A1 |
A process is provided for the reversible coupling of weak nucleophiles to the carbon-carbon double bond of 2-cyanoacrylic acid or an ester thereof so as to reversibly protect the bond. Examples of weak nucleophiles include alcohols (incl...
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WO/1995/020573A1 |
Polysuccinimide is prepared by reacting an unsaturated C2 dicarboxylic acid or anhydride thereof, e.g., maleic acid, fumaric acid, and maleic anhydride, with a particulate ammonium salt that is thermally decomposable to liberate ammonia....
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WO/1995/016668A1 |
Urea- and urethane-containing monomers selected from compounds of general formula (I) or (II), wherein each X is independently -O- or -NH-, for contact lens materials are disclosed.
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WO/1995/016726A1 |
Described is a method of producing maleinimide polymers by the anionic or thermal polymerization of maleinimide in the absence of solvents or thinning agents, as well as the use of hydrolysed polymaleinimides as additives to washing and ...
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WO/1995/005184A2 |
Phosphate-binding polymers are provided for removing phosphate from the gastrointestinal tract. The polymers are orally administered, and are useful for the treatment of hyperphosphatemia.
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WO/1995/004767A1 |
Process for the production of an aqueous polymer emulsion which process comprises: a) preparing a low molecular weight polymer containing acid-functional groups using a free-radical polymerisation process which employs a free-radical ini...
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WO/1994/028050A1 |
A modified bisimide resin is prepared by copolymerizing a bisimide monomer and a cyclic triene. The copolymerization of a bisimide with a cyclic triene such as 1,2,4-trimethylenecyclohexane provides a modified bisimide having good fractu...
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WO/1994/028051A1 |
Methylenedianiline-free, PMR-type, curable compositions based on m-phenylenediamine or mixtures of m-phenylenediamine and p-phenylenediamine are described.
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WO/1994/020547A1 |
A water-absorbent resin particle that exhibits a centrifuged absorption capacity of 26 g/g or greater, an absorption under load of 24 g/g or greater at 0.6 psi load. Other aspects of the invention are processes for the preparation of suc...
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WO/1994/017126A1 |
Novel polyfunctional maleimides as well as novel compositions based on mono- and polyfunctional maleimides are provided. Also provided are heat resistance resin compositions and curable compositions incorporating the same. The monofuncti...
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WO/1994/015907A1 |
A process for the preparation of esters, including non-distillable esters, of 2-cyanoacrylic acid comprises reacting 2-cyanoacrylic acid or an acid halide thereof with an alcohol, including a diol or polyol, or a phenol in the presence o...
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WO/1994/012275A1 |
Optically active adsorbents based on network polymerised derivatives of dicarboxylic acids, diamines or diols which are chemically bonded to a carrier. The derivatives can be polymerised by radical polymerisation or through hydrosilylati...
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WO/1994/012544A1 |
Described are maleic acid imide alpha-olefin copolymers with a mean molecular weight of 1,000 to 50,000, built up of structural units of the formula I, R1 being a tetramethylpiperidinyl grouping of the formula II in which R3 is hydrogen,...
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WO/1994/011403A1 |
Artificial antibodies or antibody mimics are described. They consist of polymers that carry specific binding sites mimicking the properties of antibodies. There is also described a method for producing artificial antibodies, in which pol...
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WO/1994/006834A1 |
The present invention relates to polymeric microspheres comprised of short-chain diol diacrylate homopolymers or copolymers of diol diacrylates and long-chain acrylate esters, which exhibit excellent antifriction characteristics when app...
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WO/1994/003504A1 |
An adhesive composition capable of post-cure expansion comprising a multifunctional methacrylate and a maleimide capable of effectuating expansion upon post-cure. A homogeneous mixture of a monomer and maleimide are subjected to a first ...
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WO/1994/000386A1 |
Compositions comprising two or more ethylene-unsaturated ester copolymers differing in their ester proportions improve the low temperature properties of fuel oils.
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WO/1994/000537A1 |
Compositions comprising copolymers of ethylene and an ester of an unsaturated alcohol and a carboxylic acid having at least 3 carbon atoms improve the low temperature properties of fuel oils.
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WO/1994/000535A1 |
An additive for improving the cold flow properties of crude oil, lubricating oil or fuel oil comprises one or more oil-soluble copolymers of ethylene and an unsaturated monomer of general formula (I), wherein R6 is hydrogen or methyl, R5...
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WO/1993/025593A1 |
A process which comprises reacting maleic anhydride and a primary or secondary C1-C18 alcohol to form a maleic half ester, and then polymerizing the half ester and monoalkenyl aromatic monomer in ester solvent in the presence of a cataly...
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WO/1993/024488A1 |
The invention relates to a bismaleimide compound of formula (I) substantially free of oligomeric, amidic and uncyclized impurities, wherein Ar is an optionally substituted aromatic residue; and Ar' is an optionally substituted aromatic r...
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WO/1993/023445A1 |
Copolymers contain, as characteristic polymerized monomer units, (a) 2 to 50 mol % vinylalkylether with 3 to 30 C atoms in the molecule; (b) 10 to 88 mol % monoethylenically unsaturated dicarboxylic acid anhydrides and (c) 10 to 88 mol %...
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WO/1993/021556A1 |
Described is the use of a polymer containing, as the orientation layer in liquid-crystal displays, maleic imide units of the general formula (I), in which R?1¿ is hydrogen or an acyclic or cyclic aliphatic, aromatic or arylaliphatic gro...
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WO/1993/017831A1 |
The present invention relates to an abrasive article comprising: (a) a flexible substrate having a front side and a back side; (b) at least one layer of abrasive grains bonded to said front side of said substrate by means of a make coat;...
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WO/1993/018072A1 |
Inherently tacky pressure-sensitive acrylic polymers are formed by emulsion polymerization in the presence of at least one reactive multifunctional monomer having a cyanurate or phosphate functionality.
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WO/1993/017368A1 |
Aqueous processable photopolymerized compositions are disclosed which as cured compositions have flexibility which are used as permanent coatings, e.g. protection of printed circuitry.
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WO/1993/008243A1 |
The properties of oil and fuel oil compositions are improved by additive combinations comprising a polymer containing the repeating units (I, II) or (III, II) in combination with a comb-like polymer having aryl groups.
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WO/1993/002112A1 |
Process for producing a dispersion, wherein dispersed slightly crosslinked polyvinyl seed particles are swollen with an ionizing liquid, said seed particles containing covalently linked ionizable groups causing a swelling of the seed par...
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WO/1992/014767A1 |
Prepolymers having imide groupings and process for their preparation, for use in the production of resins capable of hardening under ionizing radiation. The prepolymers are derived from the reaction in a homogeneous liquid medium, at a t...
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WO/1992/003418A1 |
N-(3,5-di-alkyl-4-hydroxy)phenyl norbornene dicarboximides useful for inhibiting oxidation of polymeric compositions. Such oxidation inhibitor can be provided as a monomer, oligomer or homopolymer or incorporated into copolymers or graft...
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WO/1992/002561A1 |
A process for the polymerization of selected acrylic and maleimide monomers by contacting the monomers with a diazotate, cyanate or hyponitrite, and N-chlorosuccinimide, N-bromosuccinimide or a diazonium salt. The polymers produced can t...
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WO/1991/015527A1 |
The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicone-containing acrylic star polymers and macromonomers, preparation of these contact lenses and a therapeutic metho...
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WO/1991/005812A1 |
Imide-containing polymers of styrene-type monomers are prepared by a process comprising solution polymerizing under free radical polymerization conditions a polymerizable monomer composition comprising at least one vinylaromatic monomer ...
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WO/1991/005002A1 |
A thermosetting resin is comprised of (a) a bisimide, particularly a bismaleimide, (b) a polyphenol, particularly a bisphenol, and (c) dicyandiamide. The polyphenol may be styrene-terminated (i.e. a vinyl benzyl ether of a bisphenol). Fl...
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WO/1991/003521A1 |
The invention relates to polymers containing units of the structure (A) and (B) or (B-1) or (B-2), or mixtures of A with more than one of B, B-1 and B-2; wherein R and R1 are each independently C1 to C18 alkyl; R2 is oxygen, sulfur or -N...
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WO/1991/002013A1 |
Curable bisimide compositions containing at least one biscitraconimide having general formula (I), wherein D is a divalent group, R is CH2-R1, and R1 is independently selected from hydrogen and alkyl groups having 1-18 carbon atoms; at l...
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WO/1991/000879A1 |
A curable composition comprising at least one biscitraconimide unit having formula (I), wherein D is a divalent group, R is CH2-R1 and R1 is independently selected from the group consisting of hydrogen and alkyl groups having 1 to 18 car...
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WO/1991/000886A1 |
APO-BMI is chain-extended with certain diamines to provide thermosetting resins retaining the improved properties of APO-BMI resins, but having increased toughness in the cured resins.
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WO/1990/015100A1 |
A thermoplastic copolymer having excellent thermal resistance and transparency and high mechanical strengths, and comprising a terpolymer composed of 30 to 70 % by weight of aromatic vinyl compound units, 4 to 40 % by weight of vinyl cya...
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WO/1990/011306A1 |
The invention relates to a hydrogel which is a copolymer of a polymerizable monomer mixture which contains a) 5-95 mole % of a hydrophobic polyhydroxyvinyl monomer whose hydroxyl groups are in protected form, b) 5-95 mole % of a hydrophi...
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