Method of producing a container

Details Method of producing a container Method of producing a container

B - Operations, Transporting

29

C

18/935

B29C 55/22 (2006.01) B29C 49/00 (2006.01) B29C 49/10 (2006.01) B29C 49/48 (2006.01) B29C 49/64 (2006.01) B29C 55/30 (2006.01) B29C 67/00 (2006.01)

Patent

CA 1196460

ABSTRACT The invention relates to a method of achieving a con- tainer of polyethylene terephthalate or similar thermo- plastic material from a tubular blank of chiefly amor- phous material. A mechanical forming element moves a transitional zone between amorphous (thicker) material and thinner material stretched to flow during simulta- neous elongation of the blank in the direction of movement of the transitional zone. According to the invention the stretched and oriented material is heated to a temperature higher than the temperature of the ma- terial immediately before stretching. As a result, the internal stresses produced in the material during earlier stretching are relieved. Heating causes the length of the material in the direction of stretching also to be reduced. Each subsequent forming stage for shaping the container takes place at a temperature lower than the temperature at the immediately preceding forming stage.

415700

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1296596