Embossed monolithic polymer film and process of forming the same

Details Embossed monolithic polymer film and process of forming the same Embossed monolithic polymer film and process of forming the same

1998-03-03

2000-12-05

Jordan, Charles T.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428213, B32B 300, B32B 702

Patent

active

H00019275

ABSTRACT:
A thermoplastic film formed of a monolithic polymer and which is embossed. The film has an embossed height of h, a material thickness of t1 at the apex of the embossed height h, and a material thickness of t2 at the base of the film. The film also has a concave cavity below the apex of the embossed height h. The monolithic polymer film is formed using a screen with a perforated pattern. A monolithic polymer is extruded onto the screen in semi-molten film. The screen is rotated such that the film passes over a vacuum slot behind the screen. A vacuum in the vacuum slot pulls the monolithic polymer into the perforated pattern of the screen without perforating the film. The perforated pattern of the screen is transferred to the monolithic polymer film as the film passes over the vacuum slot.

REFERENCES:
patent: 3950480 (1976-04-01), Adams et al.
patent: 3957414 (1976-05-01), Bussey, Jr. et al.
patent: 3966383 (1976-06-01), Bussey, Jr. et al.
patent: 3999928 (1976-12-01), Asakura et al.
patent: 4155693 (1979-05-01), Raley
patent: 4157237 (1979-06-01), Raley
patent: 4252516 (1981-02-01), Raley et al.
patent: 4284396 (1981-08-01), Thissen et al.
patent: 4317792 (1982-03-01), Raley et al.
patent: 4364723 (1982-12-01), Louis et al.
patent: 4576669 (1986-03-01), Caputo
patent: 4613544 (1986-09-01), Burleigh
patent: 4644623 (1987-02-01), Raley et al.
patent: 4686137 (1987-08-01), Ward, Jr. et al.
patent: 4692369 (1987-09-01), Nomi
patent: 4772444 (1988-09-01), Curro et al.
patent: 4778644 (1988-10-01), Curro et al.
patent: 4846821 (1989-07-01), Lyons et al.
patent: 4878825 (1989-11-01), Mullane, Jr.
patent: 4999152 (1991-03-01), Baldwin et al.
patent: 5120813 (1992-06-01), Ward, Jr.
patent: 5190812 (1993-03-01), Joseph et al.
patent: 5314325 (1994-05-01), Bosler
patent: 5593632 (1997-01-01), Kagawa
patent: 5614310 (1997-03-01), Delgado et al.
patent: 5648107 (1997-07-01), Kagawa et al.
patent: 5660882 (1997-08-01), McBride et al.
patent: 5718928 (1998-02-01), Rieker

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