Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Patent
1973-07-02
1976-09-21
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
260 25EP, 260 25L, 260 296WQ, 264 455, 264 48, 264245, 264321, 264DIG14, 264DIG17, 428158, 428315, B29D 2704
Patent
active
039819493
ABSTRACT:
An article, such as a door, is made from a colored water-extended thermoplastic polymeric material, and is provided with a decorated pattern by fusion of a surface layer to form a non-cellular layer, the depth of fusion being different in different parts so that the depth of color is correspondingly different. The variation in color intensity provides a decorative pattern, and fusion of the cellular material is effected by pressing with a die in the shape of the desired pattern.
REFERENCES:
patent: 3726819 (1973-04-01), Dijkhuizen
patent: 3802949 (1974-04-01), Brown
Ryan James Ernest
Smale Rodney
Anderson Philip
Imperial Chemical Industries Limited
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