Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – With liberating or forming of particles
Patent
1991-01-08
1991-12-24
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
With liberating or forming of particles
264122, 264DIG69, B29C 4302
Patent
active
050750577
ABSTRACT:
Scrap plastic materials including thermoplastic and cured thermosetting components are recycled and molded into products of predetermined shape, without the necessity of separating the different plastics from one another, by a process of shredding and milling the mixture to reduce it to a fine particle size, homogenizing the fine particle size mixture into a free flowing macro homogenous powder form, warming the homogenized mixture to an elevated temperature but at which it maintains its free flowing condition, dry blending the warm mixture with a reinforcing material or a filler and then compression molding the blend at elevated temperatures and pressures into a product of pre-determined shape.
REFERENCES:
patent: 3806562 (1974-04-01), Lamort
patent: 3956541 (1976-05-01), Pringle
patent: 4016232 (1977-04-01), Pringle
patent: 4028288 (1977-06-01), Turner
patent: 4187352 (1980-02-01), Klobbie
patent: 4279790 (1981-07-01), Nakajima
patent: 4339363 (1982-07-01), Nakajima
patent: 4364979 (1982-12-01), Dutton
patent: 4396566 (1983-08-01), Brinkmann et al.
patent: 4427818 (1984-01-01), Prusinski
patent: 4874095 (1989-10-01), Warych
patent: 4968463 (1990-11-01), Levasseur
patent: 4970043 (1990-11-01), Doan et al.
patent: 4997609 (1991-03-01), Neefe
LandOfFree
Manufacture of molded composite products from scrap plastics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manufacture of molded composite products from scrap plastics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of molded composite products from scrap plastics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-42089