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WO/1998/058012A1 |
A process for making a phosphoester polymer comprising the recurring monomeric units of formula (I), wherein X is -O- or -NR'-, where R' is H or alkyl; L is a divalent organic moiety; R' is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic, ...
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WO/1998/052993A1 |
The present invention provides a boron-containing polymer material having self-adaptive protective functional structure and its preparation, said material has boryl or boroxy center constituting main structure together with organic activ...
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WO/1998/051740A2 |
A method for purification of a polyphosphazene polyacid or acid salt thereof in which a polyphosphazene polyacid or acid salt thereof is dissolved in a concentrated aqueous solution of a salt of monovalent ions. The resulting aqueous sol...
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WO/1998/051730A1 |
A method for purification of a polyphosphazene polyacid or acid salt thereof in which a polyphosphazene polyacid or acid salt thereof is dissolved in a concentrated aqueous solution of a salt of monovalent ions. The resulting aqueous sol...
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WO/1998/048859A1 |
Biodegradable, flowable or flexible polymer compositions are described comprising a polymer having the recurring monomeric units shown in formula (I), wherein: each of R and R' is independently straight or branched alkylene, either unsub...
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WO/1998/046286A1 |
Biodegradable polymers are described comprising the recurring monomeric units shown in formula (I), wherein R is selected from the group consisting of H, alkyl, aryl or heterocyclic; and R' is selected from the group consisting of H, alk...
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WO/1998/044020A1 |
Biodegradable polymers are described comprising the recurring monomeric units shown in formula (I) or (II) wherein X is -O- or -NR'-, where R' is H or alkyl; L is a branched or straight chain aliphatic group having from 1-20 carbon atoms...
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WO/1998/039386A1 |
A process for recovering a polyphosphazene polyacid or acid salt obtained by hydrolyzing a polyphosphazene having at least one ester moiety present in at least one substituent group. The polyphosphazene having at least one ester moiety p...
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WO/1998/035921A1 |
The present invention relates to novel C/N and B/C/N polymers which can be obtained by reacting carbodiimides R�3?E-NCN-ER�3? (R = alkyl, aryl; E = Si, Ge, Sn) with halogen triazines and to the use thereof in the production of C/N an...
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WO/1998/029472A1 |
The present invention relates to ceramic-forming organosilicon polymers with metal clusters, wherein said polymers correspond to the general formula (1), where E is SiR�2?, NR, (II), (III), (IV), (V), cyclo-(SiR�2?NR)�x?, (CB�10?...
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WO/1998/021145A1 |
A solution which comprises a polyphosphazene solute, such as a polyhalophosphazene solute, and a stabilizing solvent such as diglyme. Such solution enables the polyphosphazene to remain stable for extended periods of time so that such po...
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WO/1998/018801A1 |
A hydrocarbon-soluble alkylaluminoxane composition, such as, methylaluminoxane or even a modified methylaluminoxane, can be prepared by preparing an alkylaluminoxane precursor via non-hydrolytic means, such as, by treating at least one t...
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WO/1998/000531A1 |
A method of preparing polyphosphazene microspheres wherein the polyphosphazene microspheres are produced by coacervation. In one embodiment, a solution containing a polyphosphazene is admixed with a dehydration agent, such as a solution ...
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WO/1997/044377A1 |
A melamine polymetaphosphate having a solubility of from 0.01 to 0.10 g/100 ml in water at 25 �C, a pH of from 2.5 to 4.5 in the form of a 10 wt.% aqueous slurry at 25 �C and a melamine content of from 1.0 to 1.1 mol per mol of phosp...
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WO/1997/043320A1 |
Alumoxanes, and especially methylalumoxane, which provide supported metallocene and/or transition metal catalyst compositions having increased activity, are prepared by heating the alumoxane prior to placing it on the support.
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WO/1997/040054A1 |
Aluminoxane is made by feeding water, hydrocarbylaluminum and organic solvent to a loop recyle reactor under conditions so as to react the water and hydrocarbylaluminum to form a hydrocarbylaluminoxane, removing a portion of the solvent ...
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WO/1997/027049A1 |
Substituted compounds having relatively large molecular first order hyperpolarizabilities are provided, along with devices and materials containing them. In general, the compounds bear electron-donating and electron-withdrawing chemical ...
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WO/1997/024635A2 |
This invention concerns the joinder of optical waveguide structures and their substrates, methods for joining, attaching or connecting the waveguide structures, and/or materials which can be utilized for constructing such attachments or ...
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WO/1997/024223A2 |
This invention is directed to novel silica compositions, metal silicates, germanosilicates, and metal germanosilicates, and patterned objects and films comprising the same. It also includes methods and compositions for making these films...
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WO/1997/023488A1 |
An organic alumino-oxy compound having an A1 to A2 ratio of 0.1 or below in the 27Al-NMR spectrum of the compound wherein A1 is the area of the region enclosed by both the segment, which joins the minimum point found between two consecut...
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WO/1997/022893A2 |
The invention relates to novel vitreous microlenses and optical filters and methods for their formation. This includes formation of inorganic oxide microlenses and optical filters on other objects, including the production of oxide glass...
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WO/1997/022653A1 |
The present invention is directed to a method of forming germanium-containing silicones in which germanium is incorporated into the siloxane backbone with Ge-O-Si bond or onto a carboxylated siloxane in a form such as the germanium ester...
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WO/1997/012891A1 |
A novel polymeric platinum complex represented by formula (I), wherein S, A, x, m and n are defined as above, a process for prepartion thereof, and the use thereof as an anticancer agent.
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WO/1997/009158A1 |
The present invention relates to methods and starting materials for forming molecular-sized grids or nets, or other structures based on such grids and nets, by creating molecular links between elementary molecular modules constrained to ...
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WO/1996/040254A1 |
A polyphosphazene polyelectrolyte immunoadjuvant having improved water solubility, a vaccine composition of the immunoadjuvant and an antigen or immunogen and methods of their use in producing or enhancing an immunoprotective response in...
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WO/1996/040672A1 |
Combinatorial libraries are constructed to include aminodiol monomer subunits connected by phosphodiester, phosphorothioate, or phosphoramidate linking moieties. Combinatorial libraries of the invention feature a plurality of functional ...
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WO/1996/040294A1 |
A composition and method for inducing a protective immune response to HIV-1 in an individual, of (a) a replication incompetent HIV-1, HIV-1 pseudovirus, HIV-1 VLP or oligomeric gp120; and (b) a water-soluble polyphosphazene polyelectroly...
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WO/1996/032967A1 |
Novel MRI contrast agents that comprise one or more metal-ion chelates in juxtaposition with one or more free-radical nitroxide compounds in a polymeric or oligomeric molecule. Both the chelate units and the free radical units may, indep...
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WO/1996/027630A1 |
The following ionically conductive polyphosphazenes have been synthesized: A) [NP(OCH2CH(CH2O(CH2CH2O)mR)(OCH2CH2)mR)2]n where m = 0 - 3, n ~ 15,000, R = CH3, and where m = 1, n ~ 15,000 R = (CH2)3CH3; B) [NP(O(CH2CH2O)mCH3)2]n; C) [NP(O...
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WO/1996/017844A1 |
Strapped porphyrins and electron-deficient porphyrins are provided, as well as processes and intermediates for their preparation. In certain embodiments, such compounds are prepared by nucleophilic displacement of leaving groups from met...
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WO/1996/017035A1 |
The invention concerns the use in electroluminescent devices of heterospiro-compounds of formula (I), in which 'PSI' means an element of the fourth main group of the periodic system of elements, with the exception of carbon, and is prefe...
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WO/1996/017359A1 |
Ion-conductive polymers with high ion conductivity and containing covalently bound ion complexes of one of formulas (Ia-Ic), wherein M+ is H+, Li+, Na+, or K+; m is an integer in the range 0-4; m' is an integer in the range 0-7; m" is an...
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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.
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WO/1995/032736A1 |
A polymeric material that comprises a poly(organophosphazene) that contains at least (i) a substituent group that can be radiation cross-linked; and (ii) a substituent group that is susceptible to hydrolysis under the conditions of use, ...
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WO/1995/031459A1 |
A method of generating a compound capable of interacting specifically with a selected macromolecular ligand is disclosed. The method involves contacting the ligand with a combinatorial library of oligomers composed of morpholino subunits...
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WO/1995/030632A1 |
A method is provided for preparing ceramic precursors from hydridosiloxane starting materials and then pyrolyzing these precursors to give rise to silicious ceramic materials. Si-H bonds present in the hydridosiloxane starting materials ...
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WO/1995/029916A1 |
Electron-deficient porphyrins are provided, as well as processes and intermediates for their preparation. In preferred embodiments, the electron-deficient porphyrins are prepared by condensing pyrrole derivatives and removing water thus ...
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WO/1995/028966A1 |
The invention provides a dendrimeric compound comprising a dendrimeric backbone moiety with linked thereto a plurality of diagnostically or therapeutically active moieties, characterised in that the molecular skeleton of said compound co...
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WO/1995/029511A1 |
Solid polymeric electrolytes are composed of a solid polymeric matrix formed by polymerization of organophosphate compounds.
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WO/1995/028967A1 |
The invention provides a blood pool contrast agent having an overall molecular weight of at least 10KD comprising a macrostructure which has bound thereto a plurality of opsonization inhibiting moieties and carries chelated ionic paramag...
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WO/1995/028150A1 |
Chalcone- and cinnamate-bearing polyphosphazenes, and methods for their preparation, are disclosed. The polyphosphazene derivatives can be prepared by derivatizing polydichlorophosphazene with one or more chalcone or cinnamate groups, or...
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WO/1995/024368A1 |
Synthesis and characterization of polycarbynes, a new class of carbon-based random network polymers (1). The network backbones of the polymers are composed of tetrahedrally hybridized carbon atoms (101), each bearing one substituent and ...
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WO/1995/023160A1 |
Compounds are provided having structure (I), wherein the L groups are backbone segments, the Y and T groups are functional groups for interacting with target molecules of interest, the X groups are oxygen or sulfur and the E groups are H...
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WO/1995/020593A1 |
(1) A process for producing a pure organophosphorus alkyl ester compound represented by general formula (1), which comprises esterifying a reaction mixture formed by the reaction between a dichlorophosphine derivative and (meth)acrylic a...
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WO/1995/019184A1 |
Compositions, methods for preparing and methods of using contrast agent-filled polymeric microparticles for imaging are disclosed. In a preferred embodiment, air-encapsulating microparticles are formed by ionotropically gelling synthetic...
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WO/1995/018792A1 |
Novel pyrrolidine monomers bearing various functional groups are used to prepare oligomeric structures. The pyrrolidine monomers can be joined via standard phosphate linkages including phosphodiester, phosphorothioate, and phosphoramidat...
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WO/1995/018820A1 |
Novel ethylene glycol compounds bearing various functional groups are used to prepare oligomeric structures. The ethylene glycol monomers can be joined via standard phosphate linkages including phosphorothioate, phosphodiester, and phosp...
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WO/1995/016715A1 |
A process is described for flame-proofing organic polymeric materials by means of a low temperature plasma treatment in the presence of at least one volatile, low-molecular compound. The process comprises subjecting a volatile compound, ...
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WO/1995/012630A1 |
The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-con...
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WO/1995/011528A1 |
Solid polymeric electrolytes are composed of a solid polymeric matrix formed by polymerization of organophosphorus compounds.
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