Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2006-03-21
2006-03-21
Yoon, Tae H. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S435000, C524S492000, C524S493000, C524S495000, C524S496000, C525S334100
Reexamination Certificate
active
07015265
ABSTRACT:
The present invention provides a process for preparing a filled halobutyl elastomer, which includes mixing a halobutyl elastomer, particles of filler an additive containing both amino and alcohol functional groups, and one or more hydrated metal halogens and optional curing the filled elastomer with sulfur or other curative systems. The compositions of the present invention have improved properties when compared to known carbon black-filled halobutyl elastomeric compositions combined with an enhanced scorch safety. This present invention has the advantages of (a) not evolving alcohol either during the manufacture or subsequent use of the article manufactured from the compound, and (b) maintaining good processability of the compound.
REFERENCES:
patent: 4202952 (1980-05-01), Onizawa
patent: 5428099 (1995-06-01), Morrar et al.
patent: 2293149 (2001-06-01), None
patent: 2 339 080 (2002-09-01), None
patent: 0 857 761 (1998-08-01), None
Hopkins William
Resendes Rui
Bayer Inc.
Seng Jennifer R.
Yoon Tae H.
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