Method of blow molding a parison against an insert having a groo

Details Method of blow molding a parison against an insert having a groo Method of blow molding a parison against an insert having a groo

1990-10-31

1992-04-14

Silbaugh, Jan H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

264155, 264516, 264536, B29C 4920

Patent

active

051044722

ABSTRACT:
A method of producing a blow molded product. The method includes preparing a tubular part having a groove at a portion that is to be embedded in a body portion. The groove is formed in a peripheral edge portion of a hole in a manner so as to surround the hole. A thermoplastic filler is filled in the groove over the entire area of the groove. The tubular part is then set in a blow mold as an insert. A parison is then expanded within the mold while the temperature is maintained at a level higher than the softening temperature of the filler.

REFERENCES:
patent: 3705931 (1972-12-01), Confer et al.
patent: 4280859 (1981-07-01), Thompson
patent: 4342799 (1982-08-01), Schwochert
patent: 4660498 (1987-04-01), Madison
patent: 4664958 (1987-05-01), Jones
patent: 4719072 (1988-01-01), Kojima et al.
patent: 4952347 (1990-08-01), Kasugai

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