Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1996-07-31
1998-10-20
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
26432812, 26432816, B29C 4500
Patent
active
058242546
ABSTRACT:
Process for moulding a thermoplastic material by injection onto a rotating core, in which the relative rotation of the various parts of the mould takes place during at least a part of the dwell stage and ends before the end of this stage. This process, which yields good results with polyolefins, makes it possible to manufacture articles such as receptacles and cylinders, exhibiting good mechanical properties.
REFERENCES:
patent: 3907952 (1975-09-01), Cleereman
patent: 4783301 (1988-11-01), Hong
patent: 5571583 (1996-11-01), Cao et al.
H.M. Laun: "Description of the non-linear shear behaviour of a low density polyethylene melt by means of an . . . ". In: Rheologica Acta, An Internal Journal of Rheology, vol. 17, No. 1, Jan./Feb. 1978, pp. 1-15.
Cuvelliez Charles
Dehennau Claude
Leo Vito
Derrington James
Solvay ( Societe Anonyme)
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