Process of making a flexible resin boot

Details Process of making a flexible resin boot Process of making a flexible resin boot

2006-04-25

2006-04-25

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S328100

Reexamination Certificate

active

07033531

ABSTRACT:
There is provided a flexible resin boot of which the noise-preventing effect lasts long and which ensures improved sealability and durability. The boot is formed from a base resin of a thermoplastic elastomer resin, and has a large port and a small port that are connected with each other via a bellows therebetween. For this, mineral oil or vegetable oil is added to the thermoplastic elastomer resin. Preferably, the thermoplastic elastomer resin is a thermoplastic polyester elastomer, and the mineral oil is process oil having an aromatic content of at most13%. The boot is used for covering the constant velocity joint in an automobile.

REFERENCES:
patent: 5550190 (1996-08-01), Hasegawa et al.
patent: 0315363 (1989-05-01), None
patent: 11-130952 (1999-05-01), None
patent: 10061783 (1998-03-01), None

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