Otb Group B.v.

Gyros Ab

Amic Ab

O.d.m.e. International B.v.

Ove &Ouml;hman

Lars Rune Lundbladh

Hans Martin

Lars Bering

Method for the manufacturing of a mould body and a mould body manufactured according to the method

The present invention relates to a circular disk, comprising two material layers that are joined together, wherein said disk contains microfluidic structures formed of a channel and/or cavity system defined between the two material layers, the recesses which correspond to the channels and/or cavities, respectively, being formed in one or both of opposed layer surfaces.

Circular disk containing microchannel/microcavity structures

A nozzle for simultaneous application of a string of glue on two facing adjacent disc surfaces, especially for gluing together two optical disc elements to form a DVD. In order to make possible higher glue application rates and smaller dimensions of the glue application nozzle, the nozzle can steer the flow towards the facing disc elements. For this purpose, the nozzle has a channel outlet opening which has upper and lower outlet areas and therebetween a constricted outlet area.

Method of applying glue simultaneously to two facing, adjacent disc surfaces

A method for gluing two disc elements together, in particular substrates for digital audio, video or data discs, such as Digital Versatile Discs (DVDs). The disc elements are held essentially horizontally and coaxially with one another so that a gap is formed between the disc elements, after which, in an inner area of the gap, a liquid adhesive is applied in the form of separate strands in the circumferential direction on the facing sides of the disc elements. The disc elements are brought together against one another and made to rotate rapidly in conjunction with the bringing together in order, by the gravitational force of the upper disc element and the capillary force of the adhesive, in association with the centrifugal force on the latter during the rapid rotation, to form a homogeneous and bubble-free adhesive layer of predetermined thickness between the disc elements.

Method for gluing optical disc substrates together

A method and a device for glueing together two disc elements. The two disc elements are brought together coaxially against each other to form a gap between the disc elements. In an inner area of the gap a liquid adhesive is applied so that it comes essentially simultaneously into contact with facing sides of the two disc elements. The two disc elements are then brought towards each other to achieve a uniform adhesive layer between the disc elements. The disc comprises lower and upper holders for respective disc elements and a unit for applying liquid adhesive in an inner area of the gap.

Method for glueing together disc elements

A method and a device for gluing together two disc elements. The two disc elements are brought together coaxially against each other to form a gap between the disc elements. In an inner area of the gap a liquid adhesive is applied so that it comes essentially simultaneously into contact with facing sides of the two disc elements. The two disc elements are then brought towards each other to achieve a uniform adhesive layer between the disc elements. The disc comprises lower and upper holders for respective disc elements and a unit for applying liquid adhesive in an inner area of the gap.

Growing community of inventors

Uppsala, Sweden

Ove Öhman

Growing community of inventors

Uppsala, Sweden

Ove &Ouml;hman

Ove Öhman