Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles
Patent
1974-10-24
1976-08-17
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Stratified or layered articles
264126, 264245, B29C 900
Patent
active
039754804
ABSTRACT:
An ornamental plastic article having a smooth rear exterior surface and a rough, randomly arranged layer of plastic particles or pellets forming the front outer surface is produced by placing a layer of plastic powder on one surface of a first mold form containing an outer wall having the configuration of the article, heating the powder until the powder becomes tacky in the form of a strip, placing this form on top of a mating second mold form having an outer wall containing various pockets of different colored plastic pellets of a compatible plastic material located in predetermined locations within the outer wall, rotating the two forms until the tacky powder form is on the bottom and the pockets of colored plastic pellets are on top, reversing the position of the two forms, and removing the first form which has a layer of plastic pellets affixed to the tacky layer in predetermined color arrangement corresponding to the pocket location on the second mold form, heating the pellets until they become soft, and then placing a heated third mold form containing the desired design in a wall configuration onto the heated sheet to add the design and color to the plastic pellets and then cooling the sheet, so that the pellets adhere to each other and to the plastic backing strip for forming the design and then removing the article from the first form.
REFERENCES:
patent: 2749640 (1956-06-01), Scott
patent: 2761177 (1956-09-01), Walters
patent: 3414642 (1968-12-01), Baum
patent: 3461016 (1969-08-01), Irving, Jr. et al.
patent: 3791899 (1974-02-01), Walters
Balhoff T. E.
Miskin Howard C.
White Robert F.
LandOfFree
Method of making ornamental plastic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making ornamental plastic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making ornamental plastic articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1486445