Preferred structure of phenolic resin curative for thermoplastic

Details Preferred structure of phenolic resin curative for thermoplastic Preferred structure of phenolic resin curative for thermoplastic

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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patent: 5457159 (1995-10-01), Fassina
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.

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