Method and means for providing a foamed plastic surface with a r

Details Method and means for providing a foamed plastic surface with a r Method and means for providing a foamed plastic surface with a r

1973-05-24

1977-03-15

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156247, 156240, 156277, 264 456, 264 54, 264 52, 264DIG82, 427146, 427271, 428158, 428315, 428195, 428172, 428914, B32B 300, B32B 520, B32B 3100

Patent

active

040122484

ABSTRACT:
A method of providing foam plastic surfaces with a relief structure comprising the steps of: producing printed films which contain at predetermined locations, substantially corresponding to the printing pattern, either (a) means which inhibit and/or accelerate foaming, or (b) a barrier layer material which prevents the throughpassage of the means which inhibits or accelerates foaming, applying the film, prior to foaming, to the base layer to be foamed, and this combined or composite material is heated to the foaming temperature, whereby by means of the migration of the means inhibiting and/or accelerating foaming in accordance with the printing pattern of the film into the base layer during foaming there is obtained the relief formation of the surface and the anchoring of the printed film at the surface.
There is also provided means for providing foam plastic surfaces with a relief structural design, which is characterized by the features that said means comprises an imprinted non-foamable self-supporting film or an imprinted film located at a carrier material, and wherein predetermined locations of the film corresponding to the printing design contain either, (a) means which inhibit and/or accelerate foaming, or (b) a barrier layer material which prevents the passage of the means inhibiting and/or accelerating foaming.

REFERENCES:
patent: 2696452 (1954-12-01), Trepp
patent: 3293094 (1966-12-01), Nairn et al.
patent: 3293108 (1966-12-01), Nairn et al.
patent: 3399106 (1968-08-01), Palmer et al.
patent: 3428471 (1969-02-01), Tuthill et al.
patent: 3519527 (1970-07-01), Crowley
patent: 3574659 (1971-04-01), Kwart et al.
patent: 3660187 (1972-05-01), Shortway et al.
patent: 3772138 (1973-11-01), Witman
patent: 3804700 (1974-04-01), Hoey

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