Transferable protective cover layers

Details Transferable protective cover layers Transferable protective cover layers

1993-07-22

1995-03-14

Schwartz, Pamela R.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

428195, 428343, 4284231, 428480, 428500, 428507, 428509, 428522, 428536, 428913, 428914, B32B 326

Patent

active

053976347

ABSTRACT:
A novel transfer element for protecting, graphic arts images is disclosed. The transfer element consists essentially of, a temporary carrier layer, a substantially silane-free protective layer, and an adhesive layer permanently adhered to the protective layer. In particular, the temporary carrier layer is a polymeric sheet material, a foraminous sheet material, or composites thereof; and the protective layer comprises a cross-linked cellulose ester. When the transfer element of this invention is used, the temporary carrier layer is removed, as the final step, from the protective layer which remains substantially intact. The transfer element is useful in manufacturing protected images of all sizes and is particularly suited to protecting large format images such as billboards.

REFERENCES:
patent: 4077830 (1978-03-01), Fulwiler
patent: 4343855 (1982-08-01), Conder
patent: 4522881 (1985-06-01), Kobayashi et al.
patent: 4921776 (1990-05-01), Taylor, Jr.
patent: 4977136 (1990-12-01), Fujiwara et al.
patent: 5217773 (1993-06-01), Yoshida

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