Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1990-07-10
1991-10-22
Cashion, Jr., Merrell C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428147, 428213, 428335, 428349, 428480, B32B 710
Patent
active
050594702
ABSTRACT:
A heat-sealable laminated film is disclosed which comprises a heat-sealing layer formed of a copolyester and having a thickness of not less than 5 .mu.m and a base layer formed of a copolyester containing the copolymerized unit common to the copolyester of the heat-sealing layer.
The film of this invention excels in heat-sealing strength, is extensively usable in applications for packaging, electric insulation, and industry in general, and has high industrial value.
REFERENCES:
patent: 4585687 (1986-04-01), Posey et al.
patent: 4765999 (1988-08-01), Winter
Fukuda Yujiro
Utsunomiya Koji
Cashion Jr. Merrell C.
Conlin David G.
Corless Peter F.
Diafoil Company, Ltd.
Nakarani D. S.
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