Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-07-25
2006-07-25
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S332500, C525S387000, C524S543000, C524S575000
Reexamination Certificate
active
07081502
ABSTRACT:
The present invention relates to a shaped article containing at least one peroxide curable compound containing a butyl-like polymer(s) without any conjugated aliphatic diene in its composition, said polymer containing less than 15 wt. % of solid matter insoluble in boiling cyclohexane under reflux for 60 min. The present invention also relates to a sealing material and a medical device containing at least one peroxide-curable compound containing a butyl-like polymer containing less than 15 wt. % of solid matter insoluble in boiling cyclohexane under reflux for 60 min. Further, the present invention relates to a process for producing a butyl-like polymer having no conjugated aliphatic diene in its composition and containing less than 15 wt. % of solid matter insoluble in boiling cyclohexane under reflux for 60 min. In addition, the present invention relates to a process the manufacturing of the inventive compound wherein the elastomeric polymer is mixed with at least one filler and at least one peroxide curing system in a mixing means.
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Journal of the Institute of the Rubber Industry, 8(2), (month unavailable) 1974, pp. 64-68, J. Walker, G.J. Wilson, and K.J. Kumbhani, “Peroxide curing of butyl rubber”.
J. Marcromol. Sci.-Chem., A1(6), Oct. 1967, pp. 995-1004, J.P. Kennedy and R.G. Squires, “Contributions to the Mechanism of Isobutene Polymerization. VII. Effect of HCI and Chloroethyl Benzene and a Brief Summary of the Data”.
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Glander Stephan
Gronowski Adam
Osman Akhtar
Asinovsky Olga
Lanxess Inc.
Seidleck James J.
Seng Jennifer R.
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