Adamantane base polybenzoxazole
Abstract
Abstract Polybenzoxazole constituted by recurrent units forming macromolecular chains and corresponding to one of the two following formulas: IN WHICH Y represents a divalent atom or group and q is 0 or 1, A being a divalent organic group. Group A has one of the two following formulas: WHERE A IS A WHOLE NUMBER EQUAL TO 3 AT THE MOST, R1 and R2 representing atoms or groups selcted from among the following: H, alkyl with 25 carbon atoms at the most, CF3, Si(R3)3, adamantyl, phenyl, alkoxy with 20 carbon atoms at the most, OSi(R3)3, R3 being a phenyl radical or anlkyl radical with 20 carbon atoms at the most, and Z representing a divalent atom or group. This polybenzoxazole is useful in applications that require use of transparent or weakly colored material, especially in aerospace construction, fothe manufacture of windows or visors or for production of transparent or translucet protective varnishes.
Inventors
- 👤 J Arendt
- 👤 G Bellmann
- 👤 A Groult
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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