Method of fabricating bottle-shaped container of saturated...

Details Method of fabricating bottle-shaped container of saturated... Method of fabricating bottle-shaped container of saturated...

B - Operations, Transporting

29

D

18/540

B29D 23/03 (1980.01)

Patent

CA 1144723

ABSTRACT OF THE DISCLOSURE This invention relates to a method of fabricating a bottle-shaped container of saturated polyester having superior mechanical strength, very small age and high temperature deformation degree, and superior dimensional stability. The piece for forming the bottle-shaped container is heated to an orientation temperature is biaxially oriented in a blowing mold and is then thermally set by making the outer wall surface of the expanded container with the inner wall surface of the mold retained at the temperature of the range from the glass transition point to the crystallization temperature longer than 5 seconds. The blowing mold is formed with the size adjusted in capacity by approx. 6% of shrinkage of the product container when the container is exposed at high temperature of higher than 70°C and is then left to stand for to thereby obtain the container of accurate capacity.

333292

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