Books – strips – and leaves – Book – element thereof – or accessory therefor – Covers
Patent
1997-02-11
1999-08-03
Fridie, Jr., Willmon
Books, strips, and leaves
Book, element thereof, or accessory therefor
Covers
281 37, 281 36, 281 27, 281 28, 281 151, 428122, 428323, 428500, B42D 302
Patent
active
059315059
ABSTRACT:
A casing for a binder or book is disclosed in which there is at least one stiff panel portion and a thermoplastic sheet for covering the panel portion with the end and/or edge portions of the sheet being folded under and secured to the underside of the panel portions. The sheet comprises between about 30% and about 55% copolymer of propylene and ethylene; from 0% to about 12% propylene homopolymer; between 0% to about 20% high density polyethylene; between about 23% and about 35% calcium carbonate or talc filler. The product is especially adapted for high speed machines for making binder casings.
REFERENCES:
patent: 5224737 (1993-07-01), McCurdy et al.
Malpass Thomas H.
Mounts Ronald V.
Pelszynski John
Fridie Jr. Willmon
Henderson Mark T.
Industrial Coatings Group, Inc.
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