Rubber surface having non-stick ply turn-up bladder

Details Rubber surface having non-stick ply turn-up bladder Rubber surface having non-stick ply turn-up bladder

1992-04-07

1993-10-05

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

249 65, 428 361, 428 368, B29D 3026

Patent

active

052501426

ABSTRACT:
A tire ply end turn-up device comprising an inflatable first rubbery polymer bladder body, a second non-stick rubbery polymer layer on at least a portion of the surface of the bladder body, and fabric between the bladder body and the non-stick surface. The ply turn-up bladder is made by forming an uncured rubbery polymer bladder body, forming a composite of fabric calendared on one side with an uncured non-stick rubbery polymer and on the other with a rubbery polymer that will bond with the bladder body upon curing, applying the composite to at least a portion of the bladder body, and curing the bladder body and composite to form an integral turn-up bladder with a non-stick rubber surface. A rubbery polymer that will bond with the uncured bladder body upon curing is used on the fabric side that contacts the bladder body.

REFERENCES:
patent: 3101289 (1963-08-01), Giletta et al.
patent: 3932255 (1976-01-01), Sarascan
patent: 4381331 (1983-04-01), Johnson
Prior art bladders described in James L. Johnson deposition transcript--pp. 1, 42-44, 131-133, 136 and 203.

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