Accelerator system for synthetic polyisoprene latex

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

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Details

C525S332600, C525S332700, C524S571000, C524S201000, C524S202000, C524S203000, C524S211000, C524S216000

Reexamination Certificate

active

07041746

ABSTRACT:
The invention pertains to an accelerator system, such as an accelerator system for synthetic polyisoprene latex. The accelerator system comprises dithiocarbamate and thiourea and can produce synthetic polyisoprene films having a tensile strength of about 3,000 psi to about 5,000 psi at low curing temperatures. The invention also pertains to a method for curing synthetic polyisoprene latex.

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patent: 2002/0173563 (2002-11-01), Wang et al.
patent: 1185896 (1968-07-01), None
patent: 1185896 (1970-03-01), None
patent: 55-144037 (1980-11-01), None
JP 55-144037 (English translation).
Neoprene Latex, E.I. duPont deNemours & Co., Inc., 1962, J. Carl.
Polychloroprene Latexes, The Vanderbilt Latex Handbook, Third Edition, R. T. Vanderbilt Company, Inc. 1987, J. Fitch.
Structural Characterization of Vulcanizates. Part III. The cis-1,4-Polyisoprene Tetramethylthiuram Disulfide-Zinc Oxide System, Journal of Applied Polymer Science, vol. 8, pp. 581-602 (1964), C.G. Moore and A.A. Watson.

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