Patent · US Expired

Polycarbonate/ABS molding compounds

US5393835A · kind A · utility

6Cited by

5References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Thomas Eckel · Dormagen, DE
Dieter Wittmann · Leverkusen, DE
Gerhard Fennhoff · Willich, DE
Jochen Schoeps · Krefeld, DE
Karl-Heinz Ott
Wolfgang Jakob · Moers, DE

Key dates

Filing date	May 18, 1993
Grant date	Feb 28, 1995
Priority date	—
Expiry date	May 18, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L69/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

1. Thermoplastic molding compounds containing A. 5 to 95 parts by weight of an aromatic polycarbonate, B. 1 to 50 parts by weight of a vinyl copolymer and C. 5 to 95 parts by weight of one or more graft polymers obtained by graft polymerization, characterized in that 10 to 100% of component A is replaced by a mixture of two polycarbonates A.1 and A.2 of identical structure, PA1 1) the relative solution viscosity of A.1 being 1.18 to 1.24, PA1 2) the relative solution viscosity of A.2 being 1.24 to 1.34 and PA1 3) the difference between the relative solution viscosities of A.1 and A.2 being greater than or equal to 0.06

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.