Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1989-12-07
1991-11-19
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
501 92, 528 10, 528 28, 528 31, C08F28300
Patent
active
050667343
ABSTRACT:
Polysilazane-based ceramic precursor compositions, well adapted for high yield pyrolytic conversion into ceramic shaped articles, include a polysilazane component derived from ammonia and a polysilazane component derived from a hydrazine.
REFERENCES:
patent: 4482669 (1984-11-01), Seyferth et al.
patent: 4650837 (1987-03-01), Seyferth et al.
Atochem
Marquis Melvyn I.
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