Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1989-07-20
1990-08-14
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428156, 428166, 428195, 428200, 428206, 428207, 428212, 428213, 4283084, 4283044, 428910, 428349, 428198, 428216, 428516, 428481, 428483, B32B 330, B32B 326, B32B 328
Patent
active
049486535
ABSTRACT:
The high-strength panel-type article is composed of a plurality of superposed films of thermoplastic material firmly bonded to one another. At least one surface of the article has a plurality of individual elevations, the article being thicker in these areas of this surface and the individual films not being bonded to one another in these areas.
REFERENCES:
patent: 3294607 (1966-12-01), Francis et al.
patent: 4091137 (1978-05-01), Miller
patent: 4287250 (1981-09-01), Rudy
patent: 4614680 (1986-09-01), Fry et al.
patent: 4615939 (1986-10-01), Corsi et al.
patent: 4748072 (1988-05-01), Schobermayr
Dinter Peter
Spross Bernd
Hoechst Aktiengesellschaft
Robinson Ellis P.
Watkins III William P.
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