Claims
- 1. A resin composition comprising:
- (A) a copolymer polycarbonate comprising structural units of formula (I): ##STR6## and of formula (II): ##STR7## wherein B is selected from the group consisting of
- --(R.sub.1)C(R.sup.2)--,--C(.dbd.R.sup.3), --O--, --S--, --S(O)-- and --SO.sub.2 --;
- wherein R.sup.1 and R.sup.2 independently are a hydrogen atom or a monovalent hydrocarbon group; R.sup.3 represents a divalent hydrocarbon group; R.sup.4 and R.sup.5 are independently a hydrogen atom or a monovalent hydrocarbon group; R.sup.6 is a C.sub.1-10 hydrocarbon group, halide, or halogen; and p, q and n independently are 0-4; and
- (B) a copolymer comprising:
- (i) an aromatic vinyl monomer;
- (ii) a cyanated vinyl monomer;
- (iii) optionally, a rubbery polymer; and
- (C) at least one inorganic filler;
- wherein the inorganic filler comprises glass fiber; wherein the amount of formula (II) is 2-40 mole percent based on the total amount of structural units of formula (I) and formula (II); and wherein the surface roughness maximum height of the resin composition is less than about 7.8 microns.
- 2. The composition of claim 1, wherein (B) comprises a mixture of a copolymer of (i) and (ii) and a copolymer of (i), (ii) and (iii).
- 3. The composition of claim 2, wherein the copolymer of (i), (ii) and (iii) comprises (acrylonitrile-butadiene-styrene copolymer), acrylonitrile-ethylene-propylene-styrene copolymer, acrylonitrile-chlorinated polyethylene-styrene copolymer and acrylonitrile-acrylic acid copolymer-styrene copolymer.
- 4. The composition of claim 3, wherein the copolymer of (i) and (ii) comprises a styrene-acrylonitrile copolymer.
- 5. The composition of claim 1, wherein the weight ratio of the inorganic filler to the sum of (A) and (B) is less than 2 to 1.
- 6. The composition of claim 1, wherein formula (I) is derived from 2,2-(4-hydroxyphenyl)propane.
- 7. The composition of claim 6, wherein formula (II) comprises structural units of ##STR8##
- 8. The composition of claim 1, wherein (B) further comprises at least one monomer of the group consisting of an a,b-unsaturated carboxylic acid, an a,b-unsaturated carboxylate, an a,b-unsaturated dicarboxylic acid anhydride, an a,b-unsaturated dicarboxylic acid imide, or a mixture of the foregoing.
- 9. The composition of claim 1, wherein the melt index of a composition comprising both formula (I) and formula (II) as (A) is at least 10 percent greater than the melt index of a composition comprising only formula (I) as (A).
- 10. The resin composition of claim 1 wherein the surface roughness maximum height of the resin composition is less than about 3 micron.
- 11. The resin composition of claim 1, wherein the surface glossiness is at least about 1.44 times higher that the same composition wherein component (A) is a homopolycarbonate of formula (I).
- 12. A resin composition consisting essentially of:
- (A) a copolymer polycarbonate comprising structural units of formula (I) ##STR9## and of formula (II) ##STR10## wherein B is selected from the group consisting of
- --(R.sup.1)C(R.sup.2)--, --C(.dbd.R.sup.3), --O--, --S--, --S(O)-- and --SO.sub.2 --;
- wherein R.sup.1 and R.sup.2 independently are a hydrogen atom or a monovalent hydrocarbon group; R.sup.3 represents a divalent hydrocarbon group; R.sup.4 and R.sup.5 are independently a hydrogen atom or a monovalent hydrocarbon group; R.sup.6 is a C.sub.1-10 hydrocarbon group, halide, or halogen; and p, q and n independently are 0-4; and
- (B) a copolymer comprising:
- (i) an aromatic vinyl monomer;
- (ii) a cyanated vinyl monomer; and
- (iii) optionally, a rubbery polymer; and
- (C) at least one inorganic filler;
- wherein the inorganic filler comprises glass fiber; wherein the amount of formula (II) is 2-40 mole percent based on the total amount of structural units of formula (I) and formula (II); and wherein the surface roughness maximum height of the resin composition is less than about 7.8 microns.
- 13. The composition of claim 12 wherein formula (I) comprises structural units of ##STR11## and formula (II) comprises structural units of ##STR12##
- 14. The composition of claim 13, wherein (B) is a styrene-acrylonitrile copolymer and optionally, further comprises at least one polymer selected from the group consisting of acrylonitrile-butadiene-styrene copolymer, acrylonitrile-ethylene-propylene-styrene copolymer, acrylonitrile-chlorinated polyethylene-styrene copolymer, and acrylonitrile-acrylic acid copolymer-styrene copolymer.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-265521 |
Sep 1993 |
JPX |
|
Parent Case Info
This is a continuation of Ser. No. 08/316,688 filed on Sep. 30, 1994 now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0456030 |
Apr 1991 |
EPX |
508774 |
Oct 1992 |
EPX |
508775 |
Oct 1992 |
EPX |
78466 |
Mar 1993 |
JPX |
78468 |
Mar 1993 |
JPX |
1586910 |
Mar 1981 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Chemical Abstract 121: 302266. |
Continuations (1)
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Number |
Date |
Country |
Parent |
316688 |
Sep 1994 |
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