Exxonmobil Chemical Patents Inc.

Olivier Jean Georjon

Main Chang

Weiqing Weng

Armenag Hagop Dekmezian

Palanisamy Arjunan

Aspy Keki Mehta

Chon-Yie Lin

Pawan Kumar Agarwal

Galen Charles Richeson

Rajan K Chudgar

Edward John Blok

Eric John Markel

Charles Lewis Sims

Ian C Stewart

Anthony George Karandinos

Michael C Chen

David T Harris

Christopher R Davey

Michel Louis Faissat

This invention relates to a process for the preparation of a silica-treated functionalized resin composition comprising the steps of reacting a polymer backbone with a hydrosilylation agent to produce a silane-functionalized resin composition, wherein the polymer backbone is selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, Chomopolymers and copolymer resins, C-styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, Chomopolymers and copolymer resins, C/Ccopolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof; and mixing the silane-functionalized resin composition with a silica to produce a silica-treated functionalized resin composition.

Silica treating of functionalized resins in tires

A method of lowering MFR response of a high melt flow rate polymer producing metallocene catalyst is provided. The method includes contacting the metallocene catalyst with a sufficient quantity of &#x3b1;,&#x3c9;-diene monomer such that when the catalyst composition is contacted with polymerizable reactants under suitable polymerization conditions, the resulting polymer has an MFR rate in the range of 0.1 to 19. Hydrogen and ethylene may also be present in the polymerization. Additionally a catalyst composition is provided which includes a high melt flow rate polymer producing metallocene catalyst and a sufficient quantity of &#x3b1;,&#x3c9;-diene monomers such that when the catalyst composition is contacted with a monomer under polymerization conditions, the resulting polymer has an MFR rate in the range of 0.1 to 19.

Propylene diene copolymerized polymers

The co-polymerization reaction of one or more olefin monomers, such as propylene, with &#x3b1;,&#x3c9;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &#x3b1;,&#x3c9;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115&#xb0; C. to 135&#xb0; C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1&#xb0; C. to 8&#xb0; C. More desirably, one of the crystalline populations has a melting point in the range from 152&#xb0; C. to 158&#xb0; C. and another crystalline population has a melting point in the range from 142&#xb0; C. to 148&#xb0; C.

Propylene diene copolymers

The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115&deg; C. to 135&deg; C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1&deg; C. to 8&deg; C. More desirably, one of the crystalline populations has a melting point in the range from 152&deg; C. to 158&deg; C. and another crystalline population has a melting point in the range from 142&deg; C. to 148&deg; C.

Articles formed from propylene diene copolymers

Sprayable hot melt adhesives

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Brussels, Belgium

Olivier Jean Georjon