| Patent Number |
Title Of Patent |
Date Issued |
| 5236657 |
Process for producing multi-layer mouldings |
August 17, 1993 |
| The production of multi-layer mouldings (17) from a sheet (6) injection-moulded behind with a resin can be simplified by the sheet (6) being deformed in an injection mould by means of a fluid pressure medium, in particular nitrogen, at at least 20 bar and the deformed sheet (6) injec |
| 5227458 |
Polycarbonate from dihydroxydiphenyl cycloalkane |
July 13, 1993 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 5207961 |
Injection-moulded article and process for the production thereof |
May 4, 1993 |
| The invention relates to new injection-moulded articles made from metal/plastic composite systems containing a polyurethane adhesive (intermediate) layer, and a process for the preparation thereof. |
| 5140056 |
Alkali or alkaline earth salts of sulfosuccinic acid esters as internal antistatic agents, take- |
August 18, 1992 |
| The invention relates to the use of salts of sulfosuccinic acid esters as internal antistatic agents, take-off and winding aids for transparent cast films of polycarbonates, to a process for the production of cast polycarbonate films and to the cast polycarbonate films themselves con |
| 5126428 |
Polycarbonate from dihydroxy diphenyl cycloalkane |
June 30, 1992 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 5076987 |
Process for the production of optically isotropic extrusion films |
December 31, 1991 |
| A process for the production of optically isotropic extrusion films is disclosed. Accordingly in a first process step a thermoplsatic resin is extruded to form a film having a thickness below 600 .mu.m. The second process step entailsa) calendering said film between a ground elastic roll |
| 5056617 |
Diaphragm for loudspeaker |
October 15, 1991 |
| The positive characteristics of loudspeaker diaphragms are improved by the use of a thermoplastic polyurethane sheet with a thickness of 0.06 to 0.8 mm at least for the moving part (1). |
| 5037220 |
Printing ribbon comprising polycondensates |
August 6, 1991 |
| Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable for preparing printing ribbons, in particular for thermal and electrothermal recording processes. |
| 4982014 |
Dihydroxydiphenyl cycloalkanes, their production and their use for the production of high molecu |
January 1, 1991 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 4970108 |
Multilayer films from the use in crash pads |
November 13, 1990 |
| This invention relates to multilayer films composed of thermoplastic films, tough elastic polyurethane films and optionally a sealing layer and to the use of these multilayer films for the manufacture of crash pad films, i.e. as outer skin for automobile dash boards. |
| 4908430 |
Use of special polyimides as cast films and coatings |
March 13, 1990 |
| This invention relates to the use of new special polyimides for the production of cast films and coatings. |
| 4902573 |
Method for antistatic finishing of adhesive thermoplastic coatings |
February 20, 1990 |
| The invention relates to a method for the production of shaped plastic parts which are provided with an antistatic adhesive thermoplastic coating; according to the method, the adhesive thermoplastic coating is coated with a solution which contains a binder and a suitable oxidant for |
| 4888243 |
Process for antistatic treatment of plastic mouldings |
December 19, 1989 |
| The invention relates to a process for the preparation of plastic mouldings, preferably plastic films, antistatically treated with a transparent layer of polypyrrole; the process is characterized by a certain combination of special measures which are coordinated with one another. |
| 4876033 |
Moulded bodies containing carbon |
October 24, 1989 |
| This invention relates to carbon-containing moulded bodies based on thermoplastic polycarbonates and thermoplastic polyalkylene terephtalates with an addition of carbon black and graphite and to a process for the production of these moulded bodies. |
| 4859263 |
Process for the manufacture of printed circuits |
August 22, 1989 |
| A method for manufacturing printed electrical circuits which comprise a substrate and copper foil applied thereto by hot embossing in a predetermined circuit pattern, said method comprising(a) providing a laminate which comprises the sequence of a printed circuit substrate, a heat activa |
| 4828901 |
Injection-moulded article and a process for the production thereof |
May 9, 1989 |
| An invention relates to new injection-moulded articles made from metal/plastic composite systems containing a polyurethane adhesive (intermediate) layer, and a process for the preparation thereof. |
| 4806412 |
Laminates |
February 21, 1989 |
| The invention relates to laminates of five or six components and to their use for the production of skis, surfboards and furniture components. |
| 4791016 |
Stretched polycarbonate films filled with carbon black |
December 13, 1988 |
| A polycarbonate film obtained by dispersing carbon black in a solution of thermoplastic aromatic polycarbonate, producing a cast film, and subsequently stretching the cast film, is characterized in that its elongation at break is greater than that of a corresponding unstretched simil |
| 4786708 |
Use of films of polycondensates |
November 22, 1988 |
| Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable as electrically insulating films, for example as dielectric for capacitors and as conductor track films. |
| 4735721 |
Polyether-copolycarbonates for dialysis membranes |
April 5, 1988 |
| The present invention is directed to a process for the preparation of a segmented, aliphatic-aromatic polyether-copolycarbonate containing structural units conforming to ##STR1## wherein --D-- is a diphenolate radical and units conforming to ##STR2## wherein --O--Polyether--O |
| 4707396 |
Laminates |
November 17, 1987 |
| The present invention relates to laminates consisting of a thermoplastic film, a polyurethane layer, a color layer, if appropriate a second polyurethane layer and a thermoplastic layer and a process for their production. |
| 4654411 |
High molecular weight polyesters, preparation and use thereof |
March 31, 1987 |
| Polyesters having at least 90%, by weight, of recurrent structural units corresponding to the following formula: ##STR1## and characterised by a relative viscosity.eta..sub.rel of from 1.6 to 4.5 (determined at 25.degree. C. in CH.sub.2 Cl.sub.2, c=5 g/l) are suitable for the pro |
| 4629637 |
Coated optically isotropic or monoaxially film of plastic |
December 16, 1986 |
| Optically monoaxial film of plastic which is coated with a product formed by hardening a mixture of a prepolymer, containing at least two (meth)acryloyl groups, and a (meth)acrylic acid ester of a monohydric or polyhydric aliphatic alcohol and/or an aliphatic vinyl compound, and the |
| 4607070 |
Polyether-copolycarbonates for dialysis membranes |
August 19, 1986 |
| The present invention is directed to a process for the preparation of a segmented, aliphatic-aromatic polyether-copolycarbonate containing structural units conforming to ##STR1## wherein --D-- is a diphenolate radical and units conforming to ##STR2## wherein --O--Polyether--O |
| 4563516 |
Polyether-polycarbonates for dialysis membranes |
January 7, 1986 |
| The present invention relates to a process for the preparation of polyether-polycarbonates, a process for stabilizing the polyether-polycarbonates thus prepared, a process for the production of membranes from the polyether-polycarbonates prepared according to the invention, stabilize |
