Claims
- 1. A method for preparing a resinous composition which comprises blending under reactive conditions:
- (A) a scrap copolymer of at least one alkenylaromatic monomer, at least one of acrylonitrile and methacrylonitrile and at least one aliphatic diene;
- (B) a scrap thermoplastic composition comprising at least one polyphenylene ether resin and at least one poly(alkenylaromatic) resin; and
- (C) a copolymer of at least one ethylenically unsaturated epoxy compound and at least one olefin;
- the proportions of components A and B each being in the range of about 1-95% and the proportion of component C in the range of about 5-40% by weight, based on the total of A and B.
- 2. A method according to claim 1 wherein component A is an ABS copolymer.
- 3. A method according to claim 1 wherein the polyphenylene ether resin is a poly(2,6-dimethyl-1,4-phenylene ether).
- 4. A method according to claim 1 wherein the poly(alkenylaromatic) resin comprises structural units of the formula ##STR4## wherein each of R.sup.1 and R.sup.2 is hydrogen or C.sub.1-6 alkyl, each of R.sup.3 and R.sup.4 is independently chloro, bromo, hydrogen or C.sub.1-6 alkyl, and each of R.sup.5 and R.sup.6 is independently hydrogen or C.sub.1-6 alkyl or R.sup.5 and R.sup.6 together with the atoms to which they are attached form a fused benzene ring.
- 5. A method according to claim 4 wherein the poly(alkenylaromatic) resin is a polystyrene.
- 6. A method according to claim 1 wherein component C is an ethylene copolymer.
- 7. A method according to claim 6 wherein component C also contains glycidyl methacrylate units.
- 8. A method according to claim 7 wherein component C also contains vinyl acetate units.
- 9. A method according to claim 6 wherein component C is present in the amount of about 5-15% by weight.
- 10. A method according to claim 1 wherein melt blending at a temperature in the range of about 200.degree.-300.degree. C. is employed.
- 11. A composition prepared by the method of claim 2.
- 12. A composition prepared by the method of claim 3.
- 13. A composition prepared by the method of claim 5.
- 14. A composition prepared by the method of claim 7.
- 15. A composition prepared by the method of claim 8.
- 16. A composition prepared by the method of claim 9.
- 17. A resinous composition prepared by melt extruding, at a temperature in the range of about 200.degree.-300.degree. C.:
- (A) a scrap ABS copolymer;
- (B) a scrap thermoplastic composition comprising a poly(2,6-dimethyl-1,4-phenylene ether) and at least one polystyrene; and
- (C) a copolymer comprising about 70-95% by weight ethylene units and about 5-30% glycidyl methacrylate units, and, optionally, about 2-10% vinyl acetate units;
- the proportions of components A and B being about 50-75% and about 25-50%, respectively, and the proportion of component C in the range of about 5-15% by weight, based on the total of A and B.
Parent Case Info
This application is a continuation-in-part of copending application Ser. No. 07/716,174, now abandoned.
US Referenced Citations (12)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0442102 |
Aug 1991 |
EPX |
2143085 |
Feb 1973 |
FRX |
9102767 |
Mar 1991 |
WOX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
716174 |
Jun 1991 |
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