Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Copolyesters of polybutylene terephthalate

Copolyesters of polybutylene terephthalate

US Patent 4211689 · Granted Jul 8, 1980

Estimated economic value: $2,294,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Modifications of poly(alkylene cyclohexanedicarboxylate) blends1996
Polyesterification catalyst1995
Poly(alkylene cyclohexane-dicarboxylate)-(alkylene terephatlate) copolyesters1995
Poly(alkylene cyclohexanedicarboxylate)-(alkylene terephthalate) copolyesters1995
Poly(alkylene cyclohexane-dicarboxylate) binary blends1994
Block carbonate-carboxylate copolyesters and method for their preparation1986
Process of making a high melt viscosity block copolyester1986
Enhancement of ethylene-vinyl acetate adhesion to polyester sheet by post-reacti1985
Shaped articles and process for the production thereof1983
Production of polyesters1982
Thermoplastic molding compositions1981
Poly(butylene terephthalate) molding resin1981