Process for moulding a thermoplastic material by injection onto

Details Process for moulding a thermoplastic material by injection onto Process for moulding a thermoplastic material by injection onto

1996-07-31

1998-08-25

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

2643282, B28B 144

Patent

active

057980721

ABSTRACT:
Process for injection moulding on a rotating core of a thermoplastic material exhibiting a modulus of relaxation in shear G.sub.n (7.5) higher than 0.15. This process, which gives 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: 4614629 (1986-09-01), Economy
patent: 4783301 (1988-11-01), Hong
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.

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