Device for producing expanded plastic moulded parts in an...

Details Device for producing expanded plastic moulded parts in an... Device for producing expanded plastic moulded parts in an...

2007-12-04

2007-12-04

Huson, Monica A (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

C264S328170, C425S197000

Reexamination Certificate

active

10491597

ABSTRACT:
The manufacture of foamed polymer trim parts making use of physical blowing agents requires the diffusion and sorption of the blowing agent in the polymer melt. Said diffusion and sorption are achieved by intensive mixing. Therefore a statical mixing device is enclosed in a pressure chamber, which comprises a hollow porous cylinder, which has a surface suitable for contacting the melt with the blowing agent.The protrusions extending at least partially into the melt flow cause a multiple reorganisation of the polymer melt, which leads to thorough mixing and shortens the diffusion path. The statical mixing device, which may be of modular construction, increases mass transport and mixing by a small modification of a conventional injection molding machine.

REFERENCES:
patent: 2595210 (1952-04-01), Clinefelter
patent: 3792839 (1974-02-01), Gidge
patent: 4170446 (1979-10-01), Schutz et al.
patent: 4249877 (1981-02-01), Machen
patent: 4255367 (1981-03-01), König et al.
patent: 4478516 (1984-10-01), Kessler
patent: 5158986 (1992-10-01), Cha et al.
patent: 6509049 (2003-01-01), Parsons et al.
patent: 6579001 (2003-06-01), Krumbock et al.
patent: 1 296 372 (1969-05-01), None
patent: 25 04 702 (1975-08-01), None
patent: 198 53 021 (2000-07-01), None
patent: 1 072375 (2001-01-01), None
patent: 1072375 (2001-01-01), None
patent: 05286048 (1993-11-01), None
patent: WO98/31521 (1998-07-01), None

Affiliated with

Also associated with

Rating

Device for producing expanded plastic moulded parts in an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for producing expanded plastic moulded parts in an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for producing expanded plastic moulded parts in an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3832858