Stock material or miscellaneous articles – Composite – Of polyester
Reexamination Certificate
2005-06-07
2005-06-07
Chen, Vivian (Department: 1773)
Stock material or miscellaneous articles
Composite
Of polyester
C428S910000, C528S308000, C528S308100, C528S308600, C528S308700
Reexamination Certificate
active
06902819
ABSTRACT:
The biaxially oriented polyester film of the present invention useful for twist wrapping is prepared by biaxially drawing a polyester sheet which has a glass transition temperature (Tg) of at least 60° C., in the longitudinal and transverse directions, wherein the biaxially oriented film has a specific gravity of 1.38 or less.
REFERENCES:
patent: 5958581 (1999-09-01), Khanarian et al.
patent: 6573340 (2003-06-01), Khemani et al.
patent: 03-290229 (1991-12-01), None
patent: 04-257418 (1992-09-01), None
patent: 06-065409 (1994-03-01), None
patent: 10-249935 (1998-09-01), None
patent: WO 02/078944 (2002-10-01), None
Kim Sang-il
Lee Changju
Anderson Kill & Olick PC
SKC Limited
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