Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Inc
Original Assignee
Pittsburgh Plate Glass Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pittsburgh Plate Glass CofiledCriticalPittsburgh Plate Glass Co
Publication of ES219352A1publicationCriticalpatent/ES219352A1/en
Manufacture Of Macromolecular Shaped Articles
(AREA)
Abstract
An improved method of coloring sheets of plastic year comprising communicating a longitudinal and transverse stretch uniformly to a plastic sheet joining the drawn sheet to a rigid frame of corrosive river material having said frame the desired contour of the colored sheet to trim the sheet so that adapt to the shape of the frame immerse the sheet in a dye solution remove the sheet of the dye solution rinse the plastic sheet with water to stop the mutual action between the dye and the plastic and then dry the surfaces of the dyed sheet . (Machine-translation by Google Translate, not legally binding)
ES0219352A1953-01-041955-01-03An improved method of coloring plastic leaves (Machine-translation by Google Translate, not legally binding)
ExpiredES219352A1
(en)