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Matches 501 - 550 out of 5,182

Document Document Title
WO/1996/019525A1
The invention provides a process for preparing a functionalised organic polymer comprising (i) a structural unit derived from a cleaved organic polymer, the cleavable polymer having a weight average molecular weight of greater than 5,000...  
WO/1996/012755A1
A dendrimer-based cold flow additive material.  
WO/1996/011978A1
The invention relates to a process for increasing the molecular weight of polycondensates, which comprises heating a polycondensate in the temperature range below the melting point and above the glass transition temperature in the solid ...  
WO/1996/005235A1
Mesomorphic complexes consist of anionic polyelectrolytes, cationic polyelectrolytes and/or polyampholytes and of cationic, anionic, non-ionic and/or amphoteric surfactants.  
WO/1996/002588A1
Process for the preparation of dendrimers wherein a starting compound successively in different reaction steps is reacted with a reactant in each of successive different steps, the reactant being different from one step to the next and t...  
WO/1995/035343A1
An increase in the molecular weight of virgin polycondensates and polycondensate recyclates can be achieved by heating to above the melting point or glass transition temperature and by the addition of a diphosphonite.  
WO/1995/029753A1
This invention relates to a vertically disposed polymerization reactor (2) having a series of essentially circular tray assemblies (10); each tray assembly (10) having a central open vapor chimney (18) and a single flow path (26) compose...  
WO1995024438A3  
WO/1995/024438A2
This invention concerns a process for increasing the molecular weight and viscosity of polyamides and other condensation polymers, by first injecting an inert gas into the polymer melt at elevated pressure, then stripping the volatiles f...  
WO/1995/021882A1
Copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition were obtained by reacting maleic acid, an additional polycarboxylic acid and ammonia in a stoichiometric excess, at 120 - 350 �C, preferably 180 ...  
WO/1995/021211A1
Disclosed are condensation and addition polymers which contain as recurrent structural unit N,N'-bridged bis-tetramethylpiperidinyloxy groups of formula I, where the variable m is 2 or 3. Such polymers can be used as agents protecting ag...  
WO1995017448A3  
WO/1995/020017A1
The invention relates to a process for the preparation of a modified polymer by reaction between a reactive polymer and at least a compound containing two or more functional groups. The polymer, which is solid at room temperature, is mix...  
WO/1995/017451A1
The invention relates to novel metal complexes of dendrimeric macromolecules containing 8 to 64 ions of an element of atomic number the 21-29, 39, 42-44 or 57-83 and a polymeric, complex-forming ligand of formula (I) A-(X)b, in which A, ...  
WO/1995/017448A2
Iodine-containing dendrimer polymers have the general formula (I) A-(X)b, in which A stands for a hydrogenated core of index b, b being 1 to 8, X stands for a residue composed of (a) repetitive units S and maximum 2n image-generating res...  
WO/1995/016712A1
This invention relates to libraries of non-peptide compounds each comprised of a core structure and methods for making such libraries. This invention also relates to novel silicon-based polymer resins and silane linkers, methods for thei...  
WO/1995/011262A1
A polymer synthesis method and apparatus (20) is disclosed for building a polymer chain including a head assembly (21) having nozzles (22) with each nozzle coupled to a reservoir (23) of liquid reagent (24), and a base assembly (25) havi...  
WO/1995/007315A1
Unimolecular micelles, generally referred to as cascade polymers, are constructed via the addition of successive layers, or tiers, of designed monomers, or building blocks, that possess a predetermined, branched superstructure consisting...  
WO/1995/006080A1
This invention relates to polymeric interpenetrating blends comprising a polymer matrix having dispersed therein a branched fractal three-dimensional polymer species which comprises rigid aromatic recurring units linked by electrophilic ...  
WO/1995/006081A1
This invention relates to a branched fractal three-dimensional porous polymer species which comprises rigid aromatic recurring units having electrophilic or nucleophilic reactive moieties on the exterior thereof. Another aspect of this i...  
WO/1995/004089A1
The present invention relates to a process for the N-oxidation of polyamine polymers comprising treating said polyamine polymers with an effective amount of hydrogen peroxide in an aqueous or partly aqueous solution in the presence of he...  
WO/1995/002700A1
The instant invention provides a highly fluorescent conjugate which is useful in specific binding assays, and which comprises a specific binding member bound to a fluorescent polymer. The fluorescent polymer comprises a backbone polymer ...  
WO/1994/027745A1
The invention concerns the production of a polymer coating on the inside surface of a hollow plastic article by low-pressure plasma polymerization, the gas atmosphere which forms the plasma being generated at radio frequencies and contai...  
WO/1994/022053A1
Methods for covalently modifying polymeric substances, and various so modified polymers, are disclosed. The methods require a functionalizing reagent comprising molecules each having a nitrenogenic group and a functionalizing group. The ...  
WO/1994/017120A1
The invention relates to a process for the preparation of a polymer from heterocyclic monomer units. The process according to the invention is characterized in that polymerization takes place in the presence of a sulphur-containing reage...  
WO/1994/010228A1
The invention relates to a method for purifying liquid polysiloxane containing impurities as a low-molecular-weight fraction, by evaporating the low-molecular-weight fraction, in which method a liquid stream of impure liquid material in ...  
WO/1994/003523A1
In this method, polymers with carboxyl, amino and/or phenolic-hydroxy groups are reacted with delta-2-oxazolines substituted in the 2-position by a phenyl group or by a long-chain alkyl or alkenyl group with 7 to 23 C-atoms. The reaction...  
WO/1994/001102A1
The design and synthesis of novel aminimide-based molecular modules and the use of the modules in the construction of new molecules and fabricated materials is disclosed. The new molecules and fabricated materials are molecular recogniti...  
WO/1993/025587A1
A process for the functionalisation of polymers is disclosed. Functionalisation takes place by reacting a polymer with a peroxidant, preferably the peroxydisulphate or monosulphate or sodium or potassium in an aqueous medium. The hydroxy...  
WO/1993/022259A1
The invention relates to a process for producing 1,4-bisaryl-butane-1,4-diones having general formula (I) where R and R' independently denote substituted or unsubstituted aromatic or heteroaromatic groups and polymers thereof from 1,4-bi...  
WO/1993/021259A1
Shaped macromolecules composed of one or more dendritic polymers are disclosed and processes for producing such macromolecules. The novel shapes which are disclosed include barbells, kites, vinyl macromolecules and certain starburst poly...  
WO/1993/018069A1
A process is disclosed for generating thin, micropore-free, conductive polymer layers by plasma polymerization of appropriate monomers, with formation of doped three-dimensional network structures. The doping agent is introduced into pla...  
WO/1993/017062A1
This invention relates to a branched fractal three dimensional polymer species which comprises rigid aromatic recurring units having electrophilic or nucleophilic reactive moieties on the exterior thereof. Another aspect of this inventio...  
WO/1993/013139A1
An energy ray-hardenable composition comprising a cation-polymerizable substance and an effective amount of an onium salt of a Lewis acid represented by formula (I), wherein X represents a sulfonio group of formula (II), wherein at least...  
WO/1993/006121A1
A general stochastic method for synthesizing random oligomers can be used to synthesize compounds to screen for desired properties. The use of identification tags on the oligomers facilitates identification of oligomers with desired prop...  
WO/1993/004099A1
Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive end groups are provided. The macromonomers are chemically incorporated into polymer systems to ...  
WO/1993/004098A1
Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive side groups are provided. The macromonomers are chemically incorporated into polymer systems to...  
WO/1993/004094A1
A reacted composite having primary and secondary subunits having the respective general formulas (I) and (II) and another composite having the general structure T-P-Si(OR)3 and methods for producing those composites. In these formulas, T...  
WO/1993/004394A1
The invention calls for cyclic compounds with 12 or more ring members, cryptands, coronands, podands, ionophoric compounds and polymers which include rings, where the rings may contain hetero-atoms, to be used in FLC displays in order to...  
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...  
WO/1992/021765A1
Chemoenzymatic methods of making sugar-based polymers are disclosed as well as novel sugar-based polymers. In one embodiment, acylated sugars are copolymerized with coreactants to yield novel sugar-based polymers. In another embodiment, ...  
WO/1992/014543A1
In accordance with the present invention there is provided a method of making a cascade polymer including the steps of alkylating the branches of a multi-branch core alkyne building block including multiple ether side chains and simultan...  
WO/1992/011308A1
In an improved process condensation polymers having terminal arylcyclobutene moieties are prepared. Such polymers are prepared by adding to a condensation polymerization process one or more arylcyclobutene chain terminating compounds alo...  
WO/1992/008743A1
A reactor for the solution polymerization of monomers equipped with a foam breaker (31) in the vapor space (28) thereof to prevent foam accumulation and fouling of the reactor.  
WO/1992/006773A1
A method and compositions for separating molecules based on molecular size, shape, affinity, chirality, weight, charge, and hydrogen bonding, using a mosaic matrix formed by polymerizing a dispersion of dispersoids within a polymeric mat...  
WO/1992/005567A1
Electroset materials comprise castable compositions that can be influenced as to shape and cure time by application of an electric field. Apparatus and processes for using electroset materials are also disclosed. Electroset compositions ...  
WO/1992/004352A1
A process for producing diacetal such as 1,3:2,4-di(ester- or carbamoyl-substituted benzylidene)sorbitol by the condensation of a dialkyl acetal represented by general formula (III), with a polyhydric alcohol such as sorbitol, wherein Q ...  
WO/1992/002569A1
Disclosed is a configuration for a polymer pellet having improved reactivity for solid-state polymerization and less tendency to stick during processing with heat. The pellets have a reduced path length for volatiles to travel to the ext...  
WO1991002715A3  
WO/1991/008908A1
The proposal is for a novel ribbon for a thermo-transfer printing process which has, on a substrate, at least binders, pigments and at least one additional colorant which can be transferred in gaseous form. The ribbon may be used to prin...  

Matches 501 - 550 out of 5,182