摘要:
A storage medium for optical data recording comprises a dye-forming combination which on exposure to light within a first range of wavelengths reacts irreversibly to form a dye, but is substantially insensitive to light within a second range of wavelengths which is capable of energizing the dye to produce luminescence. The dye-forming combination consists of a heterocyclic compound of the formula I and of a cyclic dihalodicarbonyl compound of the formula II ##STR1## The symbols are defined in the specification. An example of formula I is benzofuran and an example of formula II is dibromomaleic anhydride.
摘要:
The invention relates to the use of polyarylene sulphides (PAS), preferably polyphenylene sulphide (PPS) for the preparation of a structrual foam, a process for the production of this foam, and moldings obtainable by this process.
摘要:
The present invention relates to new dihydrobenzothiazine compounds, to the production thereof and to the use thereof as stabilizers and co-stabilizers against the oxidative and/or thermal degradation of organic polymers.
摘要:
An extruded polycarbonate article suitable as an energy absorber is disclosed. The article includes a plurality of honeycomb chambers that are aligned substantially in the same direction, extend in the direction of the extrusion and are disposed adjacent to one another. A method of using the article entails aligning the honeycomb chambers in a direction parallel to the direction of the impact energy.
摘要:
The invention relates to the use of polyarylene sulphides (PAS), preferably polyphenylene sulphide (PPS) for the preparation of a structural foam, a process for the production of this foam, and mouldings obtainable by this process.
摘要:
The invention relates to two-component injection-molded articles in which polyarylene sulfides (PAS), preferably polyphenylene sulfide (PPS), are present as at least one component and to a process for their production.
摘要:
This invention relates to synthetic resin bodies of thermoplastic polyarylene sulphides and/or of thermoplastic polycarbonates coated with zinc sulphide (ZnS).