Blow molding and fluorination process for the production of holl

Details Blow molding and fluorination process for the production of holl Blow molding and fluorination process for the production of holl

1994-12-13

1996-10-22

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264526, 264529, B29C 4918, B29C 4946

Patent

active

055673716

ABSTRACT:
In a process for the production of a hollow body such as a fuel tank from thermoplastic material, the wall thereof is subjected to a two-step treatment to influence the permeation properties of the material. In the first treatment step the wall is subjected to the action of a gas mixture containing fluorine and oxygen while in the second treatment step the wall is subjected to the action of a gas mixture which contains fluorine but is oxygen-free.

REFERENCES:
patent: 3862284 (1975-01-01), Dixon et al.
patent: 4617077 (1986-10-01), Giese et al.
patent: 4764405 (1988-08-01), Bauman et al.
patent: 5244615 (1993-09-01), Hobbs
patent: 5292466 (1994-03-01), Van Bonn et al.
patent: 5401451 (1995-03-01), Meixner et al.

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