Elastomer composite and method for producing it

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United States of America Patent

PATENT NO 9238724
APP PUB NO 20140045989A1
SERIAL NO

14056449

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Abstract

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A method of producing an elastomer composite. The method includes A) combining a first fluid comprising elastomer latex with a second fluid comprising particulate filler; B) causing the elastomer latex to coagulate, thereby forming masterbatch crumb; C) bringing the masterbatch crumb to a water content of about 1 weight percent to about 20 weight percent, thereby forming a de-watered coagulum; D) removing water from the de-watered coagulum by subjecting the dewatered coagulum to mechanical energy, thereby causing the dewatered coagulum to heat as a result of friction, while allowing the dewatered coagulum to achieve a temperature of about 130° C. to about 190° C., wherein water content is reduced to about 0.5% to about 3% and wherein substantially all of the decrease in water content is accomplished by evaporation, thereby producing a masticated masterbatch; and E) subjecting the masticated masterbatch to at least an additional 0.3 MJ/kg of mechanical energy while further reducing the water content.

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Patent Owner(s)

Patent OwnerAddress
CABOT CORPORATIONTWO SEAPORT LANE SUITE 1300 BOSTON MA 02210-2019

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Green, Martin C Boxborough, US 35 391
Morris, Michael D Nashua, US 110 10232
Tirumala, Vijay R Waltham, US 7 58
Wang, Meng-Jiao Shanghai, CN 41 785
Wang, Ting Lexington, US 763 6307
Zhang, Xuan Acton, US 201 1780

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