Process of injection moulding a syringe from polyethylene...

Details Process of injection moulding a syringe from polyethylene... Process of injection moulding a syringe from polyethylene...

2007-02-27

2007-02-27

Thomas, Alexander S. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C604S187000, C604S218000

Reexamination Certificate

active

10344843

ABSTRACT:
The invention provides a syringe barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax. The invention further provides a syringe having a barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax and a polypropylene composition suitable for such moulding.

REFERENCES:
patent: 5338790 (1994-08-01), Chatterjee
patent: 5429603 (1995-07-01), Morris
patent: 5620425 (1997-04-01), Welsher et al.
patent: 6626862 (2003-09-01), Duchon et al.
patent: 0 735 089 (1996-10-01), None
patent: 56155730 (1981-12-01), None
patent: 09194648 (1997-07-01), None
patent: 10139977 (1998-05-01), None
patent: WO 9413345 (1994-06-01), None
Database WPI, Section Ch, Week 199315, Derwent Publications, London, GB; AN 1993-120434, XP002181863, Mar. 1993.

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