Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-05-13
1978-02-28
Foelak, Morton
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 2P, 260 25FP, 260 18R, 260 23R, 260 304N, 260 326N, 260 336R, 260 37N, 260 47P, C08J 906
Patent
active
040766586
ABSTRACT:
Poly(aryloxyphosphazene) copolymers and foams thereof having a significant portion of C.sub.1 - C.sub.4 alkoxyphenoxy groups are described. The copolymers consist of the units which occur in a nonregular fashion and are represented by the following general formulas: ##STR1## wherein R.sub.1 represents a C.sub.1 - C.sub.4 linear or branched alkyl radical in the ortho-, meta-, or para-position, and R.sub.2 represents hydrogen, a C.sub.1 - C.sub.10 linear or branched alkyl radical, or a C.sub.1 - C.sub.4 linear or branched alkoxy radical substituted on any sterically permissible position on the phenoxy group, with the proviso that when R.sub.2 is alkoxy, OR.sub.1 and R.sub.2 are different. The copolymers of this invention may contain small amounts of randomly distributed units in addition to the repeating units described above, these additional units containing reactive sites enabling the properties of the copolymers to be modified by crosslinking and/or curing. The copolymers are elastomers, have desirable tensile strengths and may be used to form flexible or semirigid foams. The copolymers are extremely fire retardant and produce low smoke loads, or essentially no smoke, when heated in an open flame.
REFERENCES:
patent: 3370020 (1968-02-01), Allcock et al.
patent: 3515688 (1970-06-01), Rose
patent: 3700629 (1972-10-01), Reynard et al.
patent: 3702833 (1972-11-01), Rose et al.
patent: 3844983 (1974-10-01), Reynard et al.
patent: 3856712 (1974-12-01), Reynard et al.
patent: 3856713 (1974-12-01), Rose et al.
patent: 3883451 (1975-05-01), Reynard et al.
patent: 3888799 (1975-10-01), Rose et al.
Dieck Ronald L.
Quinn Edwin J.
Armstrong Cork Company
Foelak Morton
Hammond Richard J.
LandOfFree
Poly(aryloxyphosphazene) copolymer foams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Poly(aryloxyphosphazene) copolymer foams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Poly(aryloxyphosphazene) copolymer foams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1675256