Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1978-09-08
1980-09-09
Briggs, Sr., Wilbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528168, 528374, 528399, C08G 7904, C08G 7900
Patent
active
042219043
ABSTRACT:
Polyphosphazene copolymers are prepared which contain randomly distributed units represented by the formulas: ##STR1## wherein X is ##STR2## in which R is alkyl containing from 1 to 12 carbon atoms or aryl, wherein X' is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.
The copolymers of the invention can be utilized to form solvent resistant films and may also be utilized in applications for moldings, coatings and the like. Additionally, the copolymers may be utilized as crosslinking agents for other reactive monomers or polymers. An especially useful feature of these copolymers is that they can be cured or crosslinked at room temperature.
REFERENCES:
patent: 3702833 (1972-11-01), Rose et al.
patent: 3711389 (1973-01-01), Hook et al.
patent: 3804927 (1974-04-01), Lawson et al.
patent: 3844983 (1974-10-01), Reynard et al.
patent: 3888799 (1975-06-01), Rose et al.
patent: 4055520 (1977-10-01), Dieck et al.
Halasa Adel F.
Hergenrother William L.
Briggs Sr. Wilbert J.
The Firestone Tire & Rubber & Company
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