Method of manufacturing molded product of foamed resin and...

Details Method of manufacturing molded product of foamed resin and... Method of manufacturing molded product of foamed resin and...

2007-11-13

2007-11-13

Kuhns, Allan R. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling heat transfer with molding material

C264S045500, C264S050000, C264S051000, C264S053000

Reexamination Certificate

active

10755119

ABSTRACT:
While steam is supplied to flow channels to heat inner cavity surfaces to a temperature equal to or higher than the heat distortion temperature of a molding resin, the resin mixed with a supercritical fluid is injected from an injection molding machine into a mold cavity. When the injection of a predetermined quantity of the resin is completed, the supply of the steam to the flow channels is stopped, and cooling water starts to be supplied to the flow channels. The inner cavity surfaces are thus quickly switched from a heated state to a cooled state, cooling and solidifying the resin into a molded product of good appearance which is free of broken cell marks on its surface.

REFERENCES:
patent: 3671168 (1972-06-01), Nussbaum
patent: 3763293 (1973-10-01), Nussbaum
patent: 4192638 (1980-03-01), Lezier
patent: 4390485 (1983-06-01), Yang
patent: 4435523 (1984-03-01), Ponzielli
patent: 4496131 (1985-01-01), Yang
patent: 5238622 (1993-08-01), Grimmer
patent: 5376317 (1994-12-01), Maus et al.
patent: 6299807 (2001-10-01), Kimura et al.
patent: 6579910 (2003-06-01), Xu
patent: 1523778 (1978-09-01), None
patent: 48-34253 (1973-05-01), None
patent: 09-277298 (1997-10-01), None
patent: 9-277336 (1997-10-01), None
patent: 10-80932 (1998-03-01), None
patent: 11-348041 (1999-12-01), None
patent: 2001-18229 (2001-01-01), None
patent: WO 81/00535 (1981-03-01), None
patent: WO 92/17533 (1992-10-01), None

Affiliated with

Also associated with

Rating

Method of manufacturing molded product of foamed resin and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing molded product of foamed resin and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing molded product of foamed resin and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3859918