Process and machine for producing lightweight thermoplastic...

Details Process and machine for producing lightweight thermoplastic... Process and machine for producing lightweight thermoplastic...

2004-12-08

2008-09-30

Lamb, Brenda A (Department: 1792)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S322000, C156S510000

Reexamination Certificate

active

07429305

ABSTRACT:
A machine and a process for producing lightweight thermoplastic composite products in a continuous manner is disclosed. An oven is provided for heating a dry unconsolidated fabric sheet of commingled fibers of thermoplastic and re-enforcing fibers or carbon fibers to a temperature sufficient to ensure melting and flow of the resin in the voids of the commingled fibers. The unconsolidated composite sheet is conveyed through the oven and then through a first pair of heated rollers at an outlet of the oven whereby to maintain the fabric sheet heated to prevent abrupt cooling at the surfaces while compressing it under pressure. A further pair of rollers at a further reduced temperature is provided whereby the heated sheet is gradually lowered in temperature and the pressure is maintained thereon during consolidation of the commingled fibers to ensure complete flow of the resin in the voids between the reinforcing fibers. The continuous composite consolidated sheet can then be processed to sheet form, or laminated in a sandwich, or profiled whereby to form a desired product.

REFERENCES:
patent: 2547880 (1951-04-01), Meyer et al.
patent: 3880975 (1975-04-01), Lundmark
patent: 4414266 (1983-11-01), Archer et al.
patent: 6401786 (2002-06-01), Tedeschi et al.
patent: 2001/0032696 (2001-10-01), Debalme et al.

Affiliated with

Also associated with

Rating

Process and machine for producing lightweight thermoplastic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and machine for producing lightweight thermoplastic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and machine for producing lightweight thermoplastic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3975102