Process and apparatus for surface treatment of unvulcanized rubb

Details Process and apparatus for surface treatment of unvulcanized rubb Process and apparatus for surface treatment of unvulcanized rubb

1995-12-07

1997-11-11

Berman, Susan W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522158, 522159, 522160, 522 71, C08J 328

Patent

active

056865058

ABSTRACT:
Only an outer surface of an unvulcanized rubber sheet is preliminarily crosslinked by irradiating an infrared ray or a far infrared ray to the unvulcanized rubber sheet prior to subsequent final vulcanization, whereby the occurrence of rubber spew and rubber flash is considerably suppressed at the vulcanization step.

REFERENCES:
patent: 3650669 (1972-03-01), Osborn et al.
patent: 4166890 (1979-09-01), Fried et al.
patent: 4548687 (1985-10-01), Kitamura et al.
patent: 4639379 (1987-01-01), Asai et al.

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