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8124686 Process for the manufacture of polyamide-12 powder with a high melting point  
The present invention relates to a process for the preparation of polyamide-12 powder by anionic polymerization of lauryllactam in solution in a solvent of the lactam, the polyamide-12 powder...
7531252 Film and magnetic-recording medium using the same  
A film and a magnetic-recording medium using the film, where the heat shrinkage ratio in the transverse direction of the film subjected to heat treatment under no tension for 30 min. at 180° C. is...
7470765 Method for producing polyamides  
A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group,...
6703476 Method for the production of polyamides  
Polyamides are prepared from aminonitriles and water by (1) reacting the aminonitriles with water at from 180 to 350° C. and such a pressure in the range from 30 to 120 bar that a gaseous phase is...
6686008 Silicone/multifunctional acrylate barrier coatings  
The invention is a composition made by mixing a multifunctional acrylate with an aminofunctional silane and an ethylenically unsaturated acid to form a reaction product, optionally dissolved in a...
6590064 Use of heterogeneous catalysts in methods for the production of polyamides  
Described is the use of metal oxides as heterogeneous catalysts in a process for producing polyamides by polymerization of lactams and optionally further polyamide-forming monomers wherein the...
6525167 Method for producing polyamide 6 of a low extract content, high viscosity stability and low remonomerization rate  
The continuous process for producing polyamides by reacting at least one aminonitrile with water comprises the following steps: (10) reacting at least one aminonitrile with water at a temperature...
6437089 Process for the production of nylon 6  
Process for making nylon 6 in which a feed stream containing a major portion of caprolactam and/or nylon 6 prepolymer and a minor portion of aminocapronitrile is fed to a multistage reactive...
6353085 Method for producing polyamides  
In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal...
6331607 Method for producing glucoprotamines  
A process for producing glucoprotamines by condensation of N-substituted propylene diamines with 2-aminoglutaric compounds in which the reaction is carried out in the presence of aminosilicones is...
6299800 Conducting compositions of matter  
The invention provides conductive compositions of matter, as well as methods for the preparation of the conductive compositions of matter, solutions comprising the conductive compositions of...
6288207 Continuous method for producing polyamides from aminonitriles  
The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps:(1) reacting at least one aminonitrile with water at a temperature...
6218503 Silicone-containing prepolymers  
Prepolymers of Formula (I) are useful in hydrogel materials ##STR1## wherein M is a hydrophilic radical derived from at least one hydrophilic ethylenically unsaturated monomer and having a...
6127513 Spherical polyamide and process for preparing the same  
Disclosed is a process for preparing spherical polyamide having an average grain diameter of 100 μm or less which comprises polymerizing monomers for preparing the polyamide under heating at a...
6103860 Fluorine-containing polyamide  
There is disclosed an organic optical component prepared from a resin essentially comprising one or more repetitive structural units selected from the group consisting of structures represented by...
5807970 Blood compatible, shear sensitive formulations  
Formulations including a high density polyester and a density reducing component. The formulations are useful for facilitating the separation of blood serum or plasma from the cellular portion of...
5516881 Aminoxyl-containing radical spin labeling in polymers and copolymers  
Aminoxyl-containing radical is provided in polymers and copolymers by replacing a hydroxyl moiety in a carboxyl group at a chain end of a starting material biodegradable polymer or copolymer with...
5352756 Poly(ethylene or propylene glycol)-containing polymer  
A crosslinked poly(ethylene or propylene)glycol-containing polymer which has a unique spatial structure and can be designed especially for application as a chromatographic resin or as a solid...
5206337 Solvent-soluble polyimidesiloxane oligomer and process for producing the same  
The present invention provides an oligomer having an inherent viscosity η of 0.001-0.5 dl/g as measured at a concentration of 0.5 g/dl in N-methyl-2-pyrrolidone at 30° C., which has been obtained...
5152918 Liquid crystal-aligning coating and a liquid crystal display element  
An improved liquid crystal-aligning coating composed mainly of a specified high molecule, mainly a polyether polyimide or a polyimide, and capable of controlling the alignment and pretilt angle of...
5006636 Process for the production of SiO2 containing polybenzamides  
The invention relates to a process for the production of poly-(1,4-benzamide) in admixture with SiO2 by polycondensation of 4-aminobenzoic acid in the presence of SiCl4 in...
4978734 Polyamide-polyamide and polybenzoxazole-polyamide polymer  
The present invention provides polyamide-polyamide and polybenzoxazole-polyamide polymers derived therefrom with improved processing and film characteristics having incorporated into the polymeric...
4696999 Process for the production of polybenzamide with halide catalyst  
The invention relates to a process for the production of polybenzamides from amino benzoic acids in the presence of metal halides.
4644051 Catalytic reaction of polyol with bis-acyl lactam  
The invention concerns a simple process for preparing an ester acyllactam and/or esteramide acyllactam by the catalytic condensation of imide and alcohol, characterized in that a polyol and an...
4598143 Process for the preparation of aromatic polyamide in the presence of SiCl4  
The present invention relates to a process for the preparation of aromatic polyamides mixed with SiO2, which is characterized in that terephthalic (isophthalic) acid is subjected to...
4559370 Copolyester polyol resins, polyol blends comprising the same, and resultant polyisocyanurate foams  
Copolyester polyol resins comprising the reaction product of an aromatic component selected from phthalic derivatives, polyethylene terephthalate, or dimethyl terephthalate, an aliphatic component...
4448954 Single stage production of improved high molecular weight polybenzimidazole with organosilicon halide catalyst.  
This invention provides a single stage melt polymerization process for the production of an improved type of high molecular weight polybenzimidazole, which involves the use of an organosilicon...
4384085 Preparation of nylon-6 with reduced levels of water-extractable material  
Poly(ε-caprolactam) is prepared with less than 3 percent water-extractable material by carrying out the polymerization reaction in a vessel, the interior surfaces of which are coated with an inert...
4188478 Initiators for lactam polymerization having first functional group,intermediate group, second functional group  
Novel polyamides are prepared having end groups especially selected to impart special properties to the polymer. These polyamides are prepared by utilizing anionic polymerization processes and the...
4111869 Method for the polymerization of lactams  
The invention relates to a method for the cationic polymerization of lactams either substituted or unsubstituted on the lactam ring, which contain 6-16 carbon atoms, in the presence of 0.05 - 10...
3883469 Process for the production of polyamide mouldings  
An improved process for the activated anionic polymerisation of lactams having at least 5 ring members, the improvement comprising polymerising the lactam in the presence of at least one silicate...
3721652 POLYMERS OF 2-PYRROLIDONE  
3850890 PROCESS FOR THE ANIONIC POLYMERIZATION OF PYRROLIDONE WITH FLUORO-OR CHLOROFLUORO OLEFIN AS ACTIVATOR  
3702313 PROCESS FOR THE PRODUCTION OF POLYAMIDE FOAMS  
3637604 SHAPED ARTICLES MADE FROM POLYCAPROLACTAMS CONTAINING AN ORGANOSILICON COMPOUND AS AN ANTIELECTROSTATIC AGENT  
3645928 PROCESS FOR THE PREPARATION OF POLYLACTAM FOAMS  
3637550 SILANATED POLYAMIDE ADHESIVE AND ITS PREPARATION  
3461107 PROCESS FOR MAKING A POLYAMIDE AND PRODUCT  
3451963 POLYMERIZATION OF LACTAMS  
3450662 ANIONIC LACTAM CATALYST SYSTEM  
3410831 Anionic process for preparing reinforced polylactam in the presence of a coupling agent and a tetraalkyl orthosilicate  
3405099 Polymerization of pyrrolidone employing halides of group iv elements as chain initiators  
3341501 Polyamides containing silane end groups  
3300443 Polyamides stabilized with manganous silicate and process for producing same  
3214414 Process for the manufacture of polyamide bodies having uniform finely crystalline structure  
3213066 Polymerization of 2-pyrrolidone to granular polymer  
3180855 Halo-silanes as activators for the polymerization of pyrrolidone  
3086962 Process for polymerizing higher lactams  
3042647 Composition consisting of polypyrrolidone and a chlorinated phenol and process for preparing same  
2999852 Method of preventing polymeric pyrrolidones and piperidones from adhering to polymerization vessels in which they are prepared  

Matches 1 - 50 out of 50