Moldable polyester resin compositions and molded articles formed of the same
US5300572A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Jun 12, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Moldable polyester resin compositions and molded articles therefrom include, based on the total weight of all resin components: PA1 (A) between 2 to 98% by weight of a compatibilizing metal sulfonate group-containing aromatic polyester copolymer which is the polycondensation reaction product of (a) an aromatic dicarboxylic acid or its ester-forming derivative, (b) a diol compound or its ester-forming derivative, and (c) an ester-forming compound containing a metal sulfonate group; PA1 (B) between 2 to 98% by weight of an additive resin which is one of (B-I) an olefin copolymer which is the copolymerization reaction product between an olefin with at least one of an .alpha.,.beta.-unsaturated carboxylic acid or its derivative and a vinyl alcohol or its ester, and (B-II) a polyamide resin; and, optionally PA1 (C) between 0 to 96% by weight of a non-compatibilizing aromatic polyester resin. The ester-forming compound containing a metal sulfonate group is preferably incorporated into the main polymer chain of the compatibilizing aromatic polyester resin in an amount between 0.01 to 15 molar percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.