Title:
The polyester constituent for calendar processing
Document Type and Number:
Japanese Patent JP6001605
Kind Code:
B2
Abstract:
Polyester compositions that provide a higher throughput in calendering processes may be prepared from a polyester having crystallization half time of at least 5 minutes, an inherent viscosity of about 0.55 to about 0.75 dL/g, a branching monomer, and a release additive. The polyester compositions show a combination of excellent melt strength with good shear response that permits higher calendering line speeds before melt fracture occurs. Also disclosed are processes for film or sheet by calendering the above compositions and the film or sheet produced therefrom. The polyester compositions, film, or sheet also may include plasticizers and/or flame retardants to increase their flexibility and enable their use in commercial applications requiring flame resistance. The film and sheet have excellent appearance and can be used in a wide range of decorative and packaging applications.
Inventors:
Strand, Mark Alan
Pinner, Rodney Lane
Eric John, Moscara
Pinner, Rodney Lane
Eric John, Moscara
Application Number:
JP2014144463A
Publication Date:
October 05, 2016
Filing Date:
July 14, 2014
Export Citation:
Assignee:
EASTMAN CHEMICAL COMPANY
International Classes:
C08L67/02; B29C43/00; B29C43/24; C08J5/18; C08K3/34; C08K5/00; C08L33/08; C08L91/06
Domestic Patent References:
| JP2004519539A | ||||
| JP2004524426A | ||||
| JP11302512A | ||||
| JP5643247B2 | ||||
| JP2002506909A | ||||
| JP9302078A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Atsushi Ebiya
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Atsushi Ebiya