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Patent Searching and Data


Matches 351 - 400 out of 5,182

Document Document Title
WO/2000/067896A1
The present invention is directed to a process for producing a high molecular weight condensation polymer by removing unwanted by-product(s) from a polycondensation equilibrium reaction mixture using a centrifugal force device equipped w...  
WO/2000/067884A1
The invention relates to a method for fractionation of water soluble or dispersible synthetic polymers containing amino groups with a broad molar mass distribution by means of ultrafiltration. The polymer solution or dispersion which is ...  
WO/2000/068159A1
A process for the removal of poly(arylene sulfide) based deposits from an article by contacting said poly(arylene sulfide) based deposits with a polar aprotic compound, a base, an organosulfur compound having the formula: R¿1?-S-S-R¿2?...  
WO/2000/068297A1
In one aspect, the invention provides ene-thiol elastomers comprising the reaction product of a polythiol free of hydrophilic groups and having at least two thiol groups and an aromatic, heterocyclic, aliphatic, or cycloaliphatic polyene...  
WO/2000/065521A2
A data structure, tangibly embodied in a computer-readable medium, representing a polymer of chemical units is disclosed. The data structure includes an identifier including a plurality of fields for storing values corresponding to prope...  
WO/2000/062813A2
The present invention provides cationic-polymer-lipid conjugates (CPLs) such as distal cationic-poly(ethylene glycol)-lipid conjugates which can be incorporated into conventional and stealth liposomes or other lipid-based formulation for...  
WO/2000/061659A1
The invention relates to a method for separating a dissolved polymer from solids. According to the invention the solid is separated by sedimentation and the solid is rinsed with a solvent in counter-current as it is settling out. The inv...  
WO/2000/059966A1
A photoactive polymer has general formula (I) in which: P is a photoactive group which can photoisomerise and/or photodimerise; B represents an aromatic or alicyclic group, or B further represents a nitrogen atom or -CR?2¿-; A, C, D eac...  
WO1999053951A9
The present invention is directed to polymeric-prodrug transport forms of formula (I), wherein: J is (1), (2) or (3), E1-4 are independently selected from the group consisting of hydrogen, C1-6 alkyls, C3-12 branched alkyls, C3-8 cycloal...  
WO/2000/058388A1
The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection...  
WO/2000/052082A2
In a first aspect, the invention provides a diol latex composition comprising: (a) latex polymer particles comprising a residue of an ethylenically unsaturated monomer, wherein the latex polymer particles have a size below 1000 nm; (b) a...  
WO/2000/049010A1
The invention relates to novel naphthopyran- and phenanthropyran-type compounds having a carbobicycle annelated in 5,6- position. These compounds have formula (I). These compounds (I) have interesting photochromic properties. The inventi...  
WO/2000/049065A1
This invention concerns a process for the addition of volatile materials like catalysts, stabilizers, plasticizers or comonomers to to prepolymers of e.g. polyesters, polyamides or polycarbonates prior to or during solid state polymeriza...  
WO/2000/049142A1
The invention relates to a method for producing polymers, especially synthetic nucleic acid double strands of optional sequence, comprising the following steps: (a) providing a support with a surface which contains a plurality of individ...  
WO/2000/047665A1
The invention relates to thermoplastic nanocomposites which contain a) a thermoplastic plastic (A), b) at least one compound (B) whose structure consists of negatively charged phyllosilicates and cations interposed in between them (delam...  
WO/2000/047632A1
The invention relates to a supporting and a connecting profile made of plastic, synthetic resin, phenol and/or light metal for self-supporting skeleton, in particular for light construction halls and large tent constructions characterize...  
WO/2000/046171A1
A polymerization initiator for cationically polymerizable organic substances which comprises a crystalline ion-association substance having such a unique property that it can initiate not only photopolymerization but thermal polymerizati...  
WO/2000/045947A1
A flow reactor for liquid-phase polymerization reactions. A liquid reaction mixture containing organic reactant molecules to be polymerized is jetted into a low-temperature high-pressure part (B) from a high-temperature high-pressure par...  
WO/2000/042115A1
To provide a photo curable resin composition comprising (A) a cationically polymerizable organic compound, (B) a cationic photopolymerization initiator, (C) a polyol having two or more hydroxyl groups in the molecule, and (D) an organoti...  
WO/2000/037542A1
Dispersants that adsorb to hydrophobic particle surfaces in aqueous media are described. The dispersants comprise dendritic polymers having at least one ionizable moiety and at least one peripheral hydrophobic long chain hydrocarbon moie...  
WO/2000/035601A1
The method of the present invention for making a light emitting polymer has the steps of: a) flash evaporating a coating material monomer together with light emitting particles in an evaporate outlet forming an evaporate; b) cryocondensi...  
WO/2000/036035A1
The invention provides a carbamate functional compound (a) of the formula R(X)¿y? having C¿n? symmetry wherein $i(n) = 2 or higher and a T¿g? $m(G) 30 °C, wherein X is a carbamate functional group and y $m(G) 2. The invention further...  
WO/2000/034361A1
A comb copolymer comprising a backbone comprising (a) hydrophilic units, (b) residues of dihalogeno compounds remaining after the halogen atoms have been removed and (c) moiety containing pendant hydrophobe, such copolymer being particul...  
WO/2000/034348A1
Cationic polymerization initiators of formula (I) are disclosed. The acyl sulfonium salts of the present invention differ from known acyl sulfonium initiators in that the substituents R?2¿ and R?3¿ on the sulfur are larger and more com...  
WO1999065602A3
An apparatus (100) for synthesizing polymer chains includes a controller (480), a plurality of precision fit vials (160, 181) circularly arranged in multiple banks (115, 125, 180) on a cartridge (170, 300), a drain (740, 750, 760, 770) c...  
WO/2000/032649A1
The invention relates to a method of producing a derivative of a polymer having at least one functional group. Said method is characterized in that it comprises step (i): reacting the polymer having at least one functional group with at ...  
WO/2000/032648A1
The invention relates to a method of producing a polymer network, according to which (i) one or more polymers are provided which are cross-linked with one another intramolecularly or intermolecularly or intra- and intermolecularly by cov...  
WO/2000/029451A1
The invention relates to a method for stabilizing micro-emulsions or mini-emulsions that are constituted by an organic phase and an aqueous phase, using a surfactant and a hydrophobic substance that generates an osmotic pressure. The inv...  
WO/2000/029465A1
The invention relates to a method for carrying out polyaddition reactions in mini-emulsions.  
WO/2000/025826A1
The present invention pertains to biodegradable polymers comprising a non-polymerizable lactone, biodegradable compositions comprising the polymer and a therapeutic agent, the use of the compositions for the sustained release of therapeu...  
WO/2000/026263A1
The present invention relates to a redispersible material mainly in the form of powder that contains a polymer comprising silanol groups provided with a protection group. The redispersible material may consist of a redispersible powder, ...  
WO/2000/023478A1
A storage stable composition comprising a carrier usable for the immobilization of compounds containing an amine group, for instance biomolecules and/or affinity ligands. The carrier has been activated to exhibit a squaric acid derivativ...  
WO/2000/021632A1
The invention relates to a counterflow stripping tube for removing volatile organic components from reaction products, comprising a column tube (201) consisting of several runs (210a-d) in which sieve bottoms (202) are mounted, connectio...  
WO/2000/015631A1
The invention relates to novel naphthopyrans having a cyclic group annelated in position 6, 7. These naphthopyrans have formula (I). These compounds (I) have advantageous photochromic properties. The invention also covers the method of p...  
WO/2000/015272A1
Process for providing immobilized living cells, said process comprising the steps of: mixing together under reactive conditions a polymer and an activator for said polymer, such as a cross-linking agent, so that the polymer is activated,...  
WO/2000/009572A1
The invention concerns a polymerisation and/or crosslinking method under electron beam and/or gamma radiation for compositions based on monomers, oligomers and/or polymers with organic functional groups. The invention is characterised in...  
WO/2000/009571A1
In situ polymerization of polyamide monomers and silicate materials followed by solid state polymerization produces polyamide nanocomposite materials with desirable physical properties. The nanocomposite materials produced include homopo...  
WO/2000/007975A1
A compound is of formula (I): wherein: MG?1¿ and MG?3¿ each independently represent an optionally-substituted aliphatic group with 1 to 80 C-atoms, in which one or more C-atoms may be replaced by a heteroatom, in such a way that oxygen...  
WO/2000/005270A1
The invention concerns a biocompatible polymer consisting of a sequence of identical or different motifs, of the general formula (I): A¿a? X¿x? Y¿y? wherein: A represents a monomer; X represents a carboxyl group fixed on a monomer A; ...  
WO/2000/005278A1
The invention relates to a method for hydrogenating aromatic polymers in the presence of catalysts and in the presence of a hydrocarbon which contains oxygen, whereby, as a catalyst, a metal or a mixture of metals of subgroup VIII of the...  
WO/2000/002987A2
The present invention relates to a product of reaction between an amino functional polymer comprising at least one primary and/or secondary amine and one or more active ingredient. By the present invention, there is provided a release of...  
WO/2000/002932A1
The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable...  
WO/2000/002933A1
The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable...  
WO/2000/000875A1
A system for controlling temperature of a polymerization process includes a primary reactor system (30) having a polymerization reactor (31) and a recycle gas line which includes a heat exchanger (34), a primary temperature controller (4...  
WO/2000/000536A1
Heating an intimate mixture of: (a) a polyamide which contains pendant carboxylic acid groups; and (b) a compound which contains an animo group efficiently affords graft polymers with a high graft density. Such graft polymers are particu...  
WO/1999/065970A1
A system for producing a polycondensation polymer which comprises (A) an inert-gas absorption device for causing a molten polycondensation prepolymer to absorb an inert gas, (B) a polymerizer for polymerizing under a reduced pressure the...  
WO/1999/065602A2
An apparatus (100) for synthesizing polymer chains includes a controller (480), a plurality of precision fit vials (160, 181) circularly arranged in multiple banks (115, 125, 180) on a cartridge (170, 300), a drain (740, 750, 760, 770) c...  
WO/1999/064497A1
A process to treat fluid streams in order to remove undesirable compounds.  
WO/1999/053951A1
The present invention is directed to polymeric-prodrug transport forms of formula (I), wherein: J is (1), (2) or (3), E¿1-4? are independently selected from the group consisting of hydrogen, C¿1-6? alkyls, C¿3-12? branched alkyls, C¿...  
WO/1999/052560A1
Synthetic comb copolymers which elicit controlled cellular response, methods of applying these polymers to various surfaces, and methods of using the polymers for modifying biomaterial surfaces, in tissue engineering applications and as ...  

Matches 351 - 400 out of 5,182