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Datta, Schalkhaar

Rabindra N. Datta, Schalkhaar NL

Patent application numberDescriptionPublished
20090258988Composition Comprising Sulfurized Particles - The invention pertains to a composition comprising a particle and a matrix, the particle being at least partially coated with a composition comprising: a) a Bunte salt (A); b) a polysulfide (B) comprising the moiety —[S]10-15-2009

Rabindra Nath Datta, Schalkhaar NL

Patent application numberDescriptionPublished
20080312381Scorch Delay in Free-Radical-Initiated Vulcanization Processes - The invention relates to a process to cross-link rubbers comprising the step of combining a rubber with an initiator capable of generating free radicals, a maleimide-type co-agent, and a sulfur donor, wherein said co-agent and said sulfur donor are two different chemicals.12-18-2008
20090275703PROCESS FOR CROSS-LINKING COPOLYMERS USING A SULFUR-CONTAINING CO-AGENT - Process for cross-linking ethylene-α-olefin copolymers comprising the step of combining the copolymer with (a) an initiator capable of generating free radicals and (b) a sulfur-containing co-agent according to formula R—Y—S11-05-2009
20100041793PARTICLE-MATRIX COMPOSITION COATED WITH MIXTURE COMPRISING POLYSULFIDE POLYMER - The invention pertains to a composition comprising a particle and a matrix, wherein the particle is at least partially coated with a compound or a mixture of compounds a cured polysulfide polymer obtained from a polysulfide polymer having at least two epoxy end groups.02-18-2010
20100076151PARTICLE COMPRISING A MATRIX AND A RADICAL INITIATOR - The invention pertains to a particle comprising a composition containing a matrix and a peroxide or azo radical initiator, wherein the particle is a fiber or fibrid selected from aramid, polyester, polyimide, cellulose, and glass. The invention further relates to particle-elastomers comprising said composition, and skim products, tires, tire treads, and belts comprising these particle-elastomers.03-25-2010
20100292398ARAMID PARTICLES CONTAINING PEROXIDE RADICAL INTIATOR - An aramid particle containing a peroxide radical initiator wherein the particle contains 3-40 wt % peroxide radical initiator based on the weight of the aramid particle. Also, disclosed is a particle-elastomer composition having 100 parts by weight of at least one natural or synthetic elastomer, such as rubber; 0.1 to 20 parts by weight of a peroxide or 0.1 to 25 parts by weight of sulfur, an amount of a sulfur donor providing the equivalent of 0.1 to 25 parts by weight of sulfur, or a mixture of sulfur and a sulfur donor to an equivalent total of 0.1 to 25 parts by weight of sulfur; and 0.1 to 20 parts by weight of the aramid particle.11-18-2010

Patent applications by Rabindra Nath Datta, Schalkhaar NL

Rabindra Nath R.n. Datta, Schalkhaar NL

Patent application numberDescriptionPublished
20100137519Process for the Preparation of a Vulcanized Blend of Rubbers - This invention relates to a process for preparing a vulcanized rubber blend, said blend comprising (a) natural rubber or poly-isoprene rubber, (b) butadiene based rubber, and (c) rubber with an essentially saturated backbone. The improvement is that rubber c) is pre-heated with at least part of the vulcanization system before mixing with rubbers a) and b) and co-vulcanizing.06-03-2010

Sumana Datta, Schalkhaar NL

Patent application numberDescriptionPublished
20100041793PARTICLE-MATRIX COMPOSITION COATED WITH MIXTURE COMPRISING POLYSULFIDE POLYMER - The invention pertains to a composition comprising a particle and a matrix, wherein the particle is at least partially coated with a compound or a mixture of compounds a cured polysulfide polymer obtained from a polysulfide polymer having at least two epoxy end groups.02-18-2010
20100292398ARAMID PARTICLES CONTAINING PEROXIDE RADICAL INTIATOR - An aramid particle containing a peroxide radical initiator wherein the particle contains 3-40 wt % peroxide radical initiator based on the weight of the aramid particle. Also, disclosed is a particle-elastomer composition having 100 parts by weight of at least one natural or synthetic elastomer, such as rubber; 0.1 to 20 parts by weight of a peroxide or 0.1 to 25 parts by weight of sulfur, an amount of a sulfur donor providing the equivalent of 0.1 to 25 parts by weight of sulfur, or a mixture of sulfur and a sulfur donor to an equivalent total of 0.1 to 25 parts by weight of sulfur; and 0.1 to 20 parts by weight of the aramid particle.11-18-2010