Compositions of capped polyphenylene oxides and alkenyl aromatic resins

Claim 2

A process for the preparation of a composition which comprises: (a) a polyphenylene oxide resin that is capped with a compound selected from the group consisting of acid halides, acid anhydrides and ketenes; and (b) an alkenyl aromatic resin; said process comprising forming a mixture of a capped polyphenylene oxide in an alkenyl aromatic monomer and thereafter heating said mixture for a sufficient period of time at an elevated temperature to form said composition.

Claim 3

A process as defined in claim 1 wherein the capped polyphenylene oxide is derived from compounds of the formula: ##STR3## wherein X is a substituent selected from the group consisting of hydrogen, chlorine, bromine and iodine, Q is a monovalent substituent selected from the group consisting of hydrocarbon radicals, halohydrocarbon radicals having at least two carbon atoms between the halogen atom and the phenol nucleus; hydrocarbonoxy radicals and halohydrocarbonoxy radicals having at least two carbon atoms between the halogen atom and the phenol nucleus; Q' and Q" are the same as Q and in addition may be halogen, with the proviso that Q, Q' and Q" are all free of a tertiary-alpha-carbon atom.

Claim 4

A process as defined in claim 2 wherein the polyphenylene oxide is capped with a compound selected from the group consisting of acid halides, acid anhydrides and ketenes.

Claim 5

A process as defined in claim 3 wherein the alkenyl aromatic monomer is selected from compounds of the formula: ##STR4## wherein R 1 and R 2 are selected from the group consisting of lower alkyl or alkenyl groups of from 1 to 6 carbon atoms and hydrogen; R 3 and R 4 are selected from the group consisting of chloro, bromo, hydrogen and lower alkyl of from 1 to 6 carbon atoms; R 5 and R 6 are selected from the group consisting of hydrogen and lower alkyl and alkenyl groups of from 1 to 6 carbon atoms or R 5 and R 6 may be concatenated together with hydrocarbyl groups to form a naphthyl group, said compounds being free of any substituent that has a tertiary carbon atom.

Claim 6

A process as defined in claim 4 wherein the composition comprises from 10-90 parts by weight of the capped polyphenylene oxide and 90-10 parts by weight of alkenyl aromatic resin.

Claim 7

A process as defined in claim 5 wherein the composition includes a reinforcing amount of a reinforcing filler.

Claim 8

A process as defined in claim 1 wherein the mixture is thermally polymerized at a temperature of from 105°-175° C.

Claim 9

A process for the preparation of a composition which comprises: (a) 10-90 parts by weight of poly(2,6-dimethyl-1,4-phenylene oxide) that is capped with a compound selected from the group consisting of acid halides, acid anhydrides and ketenes; and (b) 90-10 parts by weight of polystyrene resin; said process comprising forming a mixture of which consists of a capped polyphenylene oxide and styrene monomer and heating said mixture for a period of time at a temperature that is sufficient to cause the styrene monomer to polymerize and form said composition.

Claim 10

A process for the preparation of a composition which comprises: (a) 10-90 parts by weight of poly(2,6-dimethyl-1,4-phenylene oxide) that is capped with a compound selected from the group consisting of acid halides, acid anhydrides and ketenes; and (b) 90-10 parts by weight of polystyrene resin; said process comprising forming a mixture of which consists of a capped polyphenylene oxide and styrene monomer and heating said mixture for a period of time at a temperature that is sufficient to cause the styrene monomer to polymerize and form said composition.

Claim 11

A process as defined in claim 8 wherein the capped poly(2,6-dimethyl-1,4-phenylene oxide) is derived from a capping agent selected from the group consisting of acid halides, acid anhydrides and ketenes.

Claim 12

A process as defined in claim 9 wherein the capping agent is phosphoryl chloride.

Claim 13

A process as defined in claim 9 wherein the capping agent is an acetate forming compound.

Claim 14

A composition which comprises: (a) a polyphenylene oxide resin that is capped with a compound selected form the group consisting of acid halides, acid anhydrides and ketenes; and (b) an alkenyl aromatic resin.

Claim 15

A composition which comprises: (a) a polyphenylene oxide resin that is capped with a compound selected form the group consisting of acid halides, acid anhydrides and ketenes; and (b) an alkenyl aromatic resin.