Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-11-17
1999-09-14
Buttner, David
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525139, 528165, C08L 2316, C08L 2312, C08L 6110
Patent
active
059524251
ABSTRACT:
Phenolic resin curatives having a majority of dibenzyl ether linkages were unexpectedly found to be very effective in curing unsaturated rubbers in a blend of a crystalline polyolefin and said rubber. Their effectiveness exceeds that of conventional phenolic resins for many thermoplastic vulcanizate compositions allowing for the reformulation of the recipes with lower amounts of curatives and equivalent or superior physical properties in the resulting thermoplastic vulcanizate.
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Van Duin et al, "The Chemistry of Phenol-Formaldehyde Resin Vulcanization of EPDM: Part I. Evidence For Methylene Crosslinks", Rubber Chemistry and Technology, vol. 68, No. 5, Nov. 1995, pp. 717-727.
Application of a Cone/Plate Rheometer for the Characterization of Resol-Type Phenol Formaldehyde Resins, Journal of Applied Polymer Science; Applied Polymer Symposium 51, 277-291 (1992), published Sep. 1, 1992, by John Wiley and presented to the public May 2 through May 8, 1991.
Gilbertson Gary W.
Medsker Robert E.
Patel Raman
Advanced Elastomer Systems L.P.
Buttner David
Laferty Samuel B.
Skinner William A.
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