Patent · US Active

Clear polycarbonate polyester blend

US7345116B2 · kind B2 · utility

3Cited by

25References

10Claims

0Family size

Inventors

Abbas-Alli Ghudubhai Shaikh · Savanuru, IN
Manatesh Chakraborty · Mumbai, IN
Manickam Jayakannan · Thrissur, IN
Ganesh Kannan · Saginaw, US
Vishvajit Chandrakant Juikar · Savanuru, IN
Rajashekhar Shiddappa Totad · Bengaluru, IN

Key dates

Filing date	Jul 13, 2006
Grant date	Mar 18, 2008
Priority date	—
Expiry date	Sep 20, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An optically clear thermoplastic resin composition is disclosed which comprises structural units derived from substituted or unsubstituted polycarbonate and substituted or unsubstituted polyester, wherein said polyester comprises structural units derived from terephthalic acid and a mixture of 1,4-cyclohexane dimethanol and ethylene glycol, wherein said ethylene glycol is greater than about 60 mole percent based on total moles of 1,4-cyclohexane dimethanol and ethylene glycol. In addition the composition disclosed possess good environmental stress cracking resistance, flow and thermal properties.

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