Method of stamping composite sheets

Details Method of stamping composite sheets Method of stamping composite sheets

1996-07-11

1997-10-28

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

264 63, C08J 510, C08K 340, C08L 2310

Patent

active

056818874

ABSTRACT:
A method of stamping composite sheets to prepare a molding. The method including heating a plurality of composite sheets and stamping the heated composite sheets in a mold. Each composite sheet comprising a propylene-based resin and a glass fiber mixture. The glass fiber mixture includes short glass fibers and long glass fibers. The weight ratio of the short glass fibers to the long glass fibers in the glass fiber mixture is 2/1-1/2. The weight ratio of the propylene-based resin to the glass fiber mixture is 85/15-50/50. The melt index of the propylene-based resin in the composition making up the composite sheets is 20 g/10 minutes or greater. The resultant composite sheets can be easily handled during the molding process, and exhibit desirable mechanical strength. In addition, the glass fibers fill even the corners of the moldings, thus improving the strength of the edges, and provide uniform mold shrinkage factors, with a low occurrence of deformation and cracking. Furthermore, the resultant composite sheets have desirable shaping properties.

REFERENCES:
patent: 4044188 (1977-08-01), Segal

Affiliated with

Also associated with

Rating

Method of stamping composite sheets 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 stamping composite sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of stamping composite sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1026712