Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1992-12-21
1994-07-26
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430271, 430281, G03C 176
Patent
active
053326490
ABSTRACT:
For the production of a recording element having a photopolymerizable recording layer comprising at least two individual layers having the same composition or different compositions, located one on top of the other and firmly bonded to one another, the components used for the production of the individual layers are melted together, homogeneously mixed and freed from gaseous constituents in a self-purging, twin-screw extruder. Thereafter, the component mixture is divided into two or more material streams in a manner such that at least one material stream is removed from the extruder, transported by means of a delivery pump to an adapter or to a multilayer die and bonded there with a material stream from the screw extruder after shaping in each case to give sheet-like structures. During transport of the separate material streams, further components may be metered into or mixed with said streams, so that individual layers having the same or different properties are obtained. The individual layers or the recording layer are or is subsequently calendered.
REFERENCES:
patent: 4320188 (1982-03-01), Heinz et al.
patent: 4423135 (1983-12-01), Chen et al.
patent: 5049478 (1991-09-01), Koch et al.
Bleckmann Gerhard
Loerzer Thomas
Telser Thomas
BASF - Aktiengesellschaft
Chapman Mark A.
McCamish Marion E.
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