04847032 is referenced by 3 patents and cites 30 patents.

A process for producing hollow bodies from oriented thermoplastic material wherein a cylindrical portion of a heated hollow preform which has a bottom thereon is subjected to stretching at a starting temperature which is below the vitreous transition temperature of the thermoplastic material, with the wall thickness of the preform being reduced in the stretching operation. Prior to the stretching operation the preform is heated in the portion in which the stretching effect begins, to a temperature higher than in the portion adjoining same. Stretching is preferably effected along the axis of the preform at different rates such that in the portion of the preform at which stretching begins, stretching is effected at a lower rate than in the portion adjoining same in the stretching direction.

Title
Process for producing hollow bodies from thermoplastic material
Application Number
10939
Publication Number
4847032
Application Date
September 15, 1988
Publication Date
July 11, 1989
Inventor
Walter Wiedenfeld
Hamburg
DE
Klaus Vogel
Barsbuttel
DE
Wolfgang Reymann
Hamburg
DE
Claus Horwege
Hamburg
DE
Edward Clar
Hamburg
DE
Karl Heinz Balkau
Oststeinbek
DE
Adolf Appel
Egestorf
DE
Peter Albrecht
Hamburg
DE
Agent
Panitch Schwarze Jacobs and Nadel
Assignee
Krupp Corpoplast Maschinenbau
DE
IPC
B29C 55/30
B29C 55/22
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