Stock material or miscellaneous articles – Surface property or characteristic of web – sheet or block
Patent
1997-04-29
1999-06-22
Yamnitzky, Marie
Stock material or miscellaneous articles
Surface property or characteristic of web, sheet or block
428480, 428483, 428521, 428522, 428412, 4284237, 428 357, 428 359, 428212, 428213, 428215, 428334, 428337, B32B 2700
Patent
active
059141913
ABSTRACT:
A multi-layer electrostatic dissipative structure that is clear to translucent, washable and thermo-formable comprises at least one outer layer and a core layer. Preferably, two outer layers are utilized with the core layer sandwiched therebetween. The outer layers are a blend of amorphous or semi-crystalline copolyester and an electrostatic dissipative polymer in an amount sufficient to impart a surface resistivity of about 10.sup.5 to 10.sup.12 Ohms/sq. The core layer is a polymer having a haze value of less than five percent, preferably amorphous or semi-crystalline copolyester. The multi-layer structure may additionally have tie layers between the core layer and each of the outer layers.
REFERENCES:
patent: 4719263 (1988-01-01), Barnhouse et al.
patent: 4931506 (1990-06-01), Yu
patent: 5101139 (1992-03-01), Lechter
patent: 5159053 (1992-10-01), Kolycheck et al.
patent: 5237009 (1993-08-01), Lee
patent: 5342889 (1994-08-01), Sullivan et al.
patent: 5476612 (1995-12-01), Wessling et al.
patent: 5478816 (1995-12-01), Kochem et al.
patent: 5631311 (1997-05-01), Bergmann et al.
patent: 5643991 (1997-07-01), Stipe et al.
Derwent Abstract WPI Accession No. 95-182620 (JP 7101016) (Apr. 18 1995).
Derwent Abstract WPI Accession No. 95-401133 (JP 7278398) (Nov. 24, 1995).
Derwent Abstract WPI Accession No. 95-221598 (JP 7135087) (May 23, 1995).
Harding, J. A. et al., "Static Dissipative Polymeric Antistatic Modified Thermoplastics," SPE Antec Technical Papers, 36, pp. 409-411(1990 ).
Lee, B. L., "Electrically Conductive Polymer Composites and Blends," Polymer Engineering and Science, 32, pp. 36-42 (1992).
Derwent Abstract WPI Accession No. 91-201573 (WO 91/10237; copy of corresponding U.S. Patent 5,476,612 also provided).
Dobbs Harold Eugene
Feay Yvette Marie
Hanson Scott Arnold
Moolenaar Hubertus Jacobus Wilhelmus
Boshears Betty J.
Eastman Chemical Company
Gwinnell Harry J.
Yamnitzky Marie
LandOfFree
Multilayered packaging materials for electrostatic applications does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multilayered packaging materials for electrostatic applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayered packaging materials for electrostatic applications will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1707415