Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1986-02-24
1987-08-25
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
528 23, 528 28, 528 32, 525474, 501 92, 501154, C08G 7706
Patent
active
046893822
ABSTRACT:
The present invention relates to a process for the treatment of polysilazane in a homogeneous phase with a catalytically effective quantity of an acid catalyst selected from HClO.sub.4 and CF.sub.3 SO.sub.3 H. The polysilazane is preferably selected from the group consisting of organopolysilazane, organopoly(disilyl)silazane and mixtures thereof. The organic radicals bonded to the silicon atoms are preferably saturated or aromatic hydrocarbon radicals and the silicon atoms of the polysilazane are substantially free from any hydrogen atom bonded directly to the silicon atoms.
The polysilazanes treated in this manner have good thermal behavior and, are particularly useful as precursors of ceramic products.
REFERENCES:
patent: 3892583 (1975-07-01), Winter et al.
patent: 4097294 (1978-06-01), Rice et al.
patent: 4314956 (1982-02-01), Baney et al.
patent: 4340619 (1982-07-01), Gaul, Jr.
patent: 4395460 (1983-07-01), Gaul
patent: 4404153 (1983-09-01), Gaul, Jr.
patent: 4482669 (1984-11-01), Seyferth et al.
Lebrun Jean-Jacques
Porte Hugues
Marquis Melvyn I.
Rhone-Poulenc Specialites Chimiques
LandOfFree
Process for the preparation of organopolysilazanes and of organo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of organopolysilazanes and of organo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of organopolysilazanes and of organo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1923518