Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Utilizing diverse solid particles
Patent
1984-10-05
1986-10-07
Silbaugh, Jan
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Utilizing diverse solid particles
264104, 264105, 264110, 264127, 264175, 264280, 264316, 425371, B29C 4324, B29C 4348, B29C 6716
Patent
active
046158537
ABSTRACT:
A method for producing a thermoplastic resin sheet or a filler-containing thermoplastic resin sheet by which method a difficultly-workable thermoplastic resin as well as an ordinary thermoplastic resin can be formed into a sheet and various kinds of fillers can be compounded into the sheet. The method is characterized in that a thermoplastic resin or a composition of a thermoplastic resin and a filler is fed in powder or preformed sheet form between a pair of tensioned endless belts disposed parallel and travelling together around a set of rolls, the endless belts being heated by being brought into surface-to-surface contact with heating rolls while travelling along a path having at least one bend formed by the heating rolls, and the material is heated and compressed between the endless belts and melted into an integral body at or above the melting point or softening point of the thermoplastic resin.
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patent: 2960727 (1960-11-01), Bradshaw et al.
patent: 3223027 (1965-12-01), Shigemarisoda et al.
patent: 3400186 (1968-09-01), Wiley
patent: 3801250 (1974-04-01), Kaiser et al.
Aoyama Takeo
Kamei Tadashi
Uehara Mikio
Nippon Petrochemicals Company Limited
Silbaugh Jan
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