Poly(biphenyl ether sulfone)compositions
AssigneeAmoco Corporation
InventorsW. E. Kelly, S. R. Patel, M. Matzner
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Abstract
Flame retardant polyarylether compositions comprising a poly(biphenyl ether sulfone) and anhydrous zinc borate are disclosed. The preferred compositions of the invention are blends of a poly(biphenyl ether sulfone) with a poly(aryl ether ketone) containing anhydrous zinc borate and a fluorocarbon polymer, and optionally titanium dioxide. The preferred compositions exhibit improved heat release characteristics.
Claims25
A thermoplastic composition comprising:
- a) a polyarylether comprising at least one poly(biphenyl ether sulfone)
- b) at least 2.0 parts by weight of anhydrous zinc borate per 100 parts by weight of polyarylether;
- and
- c) about 1.0 to about 8.0 parts weight of nonfibrillating fluorocarbon polymer per 100 parts by weight of polyarylether.
The composition of claim 11, wherein the poly(aryl ether ketone) comprises a repeating unit of at least one of the following units:
- ##STR19## wherein Ar is independently a divalent aromatic radical selected from phenylene, biphenylene or naphthylene;
- X is independently O, C.dbd.O, or a direct bond;
- m is an integer of 0 to 3;
- b, c, d, and e are 0 or 1, and preferably d is 0 when B is 1;
- and f is an integer of 1 to 4.
polyarylether composition having improved heat release characteristics comprising:
- (a) a poly(biphenyl ether sulfone) having the repeating unit ##STR21## (b) about 2.0 to about 8.0 parts by weight anhydrous zinc borate per 100 parts by weight of the poly(biphenyl ether sulfone);
- (c) about 1.0 parts to about 8.0 parts by weight per 100 parts by weight of the poly(biphenyl ether sulfone) of a non-fibrillating fluorocarbon polymer;
- and
- (d) about 3.0 parts to about 12.0 parts by weight per 100 parts by weight of the poly(biphenyl ether sulfone) of titanium dioxide.
A polyarylether composition having improved heat release characteristics comprising:
- (a) about 50.0 parts to about 80.0 parts by weight of poly(biphenyl ether sulfone) having the repeating unit ##STR22## (b) about 20.0 parts to about 50.0 parts by weight of a poly(aryl ether ketone) having at least one repeating unit of the following formula ##STR23## wherein the amounts of the poly(biphenyl ether sulfone) and the poly(aryl ether ketone) are per 100 parts weight of the poly(biphenyl ether sulfone) and the poly(aryl ether ketone);
- (c) about 2.0 parts to about 8.0 parts by weight anhydrous zinc borate per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether ketone);
- (d) about 1.0 part to about 8.0 parts by weight per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether ketone) of a non-fibrillating fluorocarbon polymer;
- and
- (e) about 3.0 parts to about 12.0 parts by weight of titanium dioxide per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether ketone).
A polyarylether composition having improved heat release characteristics comprising:
- (a) about 50.0 parts to about 90.0 parts by weight of a poly(biphenyl ether sulfones) having the repeating unit ##STR24## (b) about 10.0 to about 50.0 parts by weight of a poly(aryl ether sulfone) comprising repeating units of the formula ##STR25## wherein at least about 50 mole percent of the Ar' groups are bisphenyl S moieties and the remainder of the Ar' groups are p-phenylene, and wherein the amounts of the poly(biphenyl ether sulfone) and the poly(aryl ether sulfone) are per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether sulfone);
- (c) about 2.0 parts to about 8.0 parts by weight anhydrous zinc borate, per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether sulfone);
- (d) about 1.0 parts to about 8.0 parts by weight per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether sulfone) of a non-fibrillating fluorocarbon polymer;
- and
- (e) about 3.0 parts to about 12.0 parts by weight per 100 parts combined weight of the poly(biphenyl ether sulfone) and the poly(aryl ether sulfone) of titanium dioxide.
A polyarylether composition having improved heat release characteristics comprising:
- (a) a poly(biphenyl ether sulfone);
- (b) glass fibers;
- (c) anhydrous zinc borate;
- and
- (d) a non-fibrillating fluorocarbon polymer.
Dependencies are inferred from the claim text.