Filled elastomeric butyl compounds

Details Filled elastomeric butyl compounds Filled elastomeric butyl compounds

2007-10-09

2007-10-09

Cain, Edward J. (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S492000, C524S495000

Reexamination Certificate

active

10085874

ABSTRACT:
The invention provides a process for preparing a filled halobutyl elastomer, which comprises mixing a halobutyl elastomer, particles of filler and an additive containing both amino and alcohol functional groups, and curing the filled elastomer with sulfur or other curative systems. This 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) significantly reducing the cost of the compound.

REFERENCES:
patent: 4146689 (1979-03-01), Onizawa
patent: 4286079 (1981-08-01), Onizawa
patent: 5393816 (1995-02-01), Kondo et al.
patent: 5428099 (1995-06-01), Morrar et al.
patent: 2001/0009948 (2001-07-01), Hopkins et al.
patent: 1 081 187 (2001-03-01), None
patent: 1 195 402 (2002-04-01), None
patent: 01/09225 (2001-02-01), None
patent: 02/45942 (2002-06-01), None
Rubber Tech. 3rded. (month unavailable) 1995, pp. 20-58, “The Compounding And Vulcanization of Rubber” by Howard L. Stephens.

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