Michael Andrew Williams
Physical Therapy at Sycamore Spg Dr, Humble, TX

2007020, Sep 6, 2007

Mar 2, 2006

11/366906

Ralph Raulie - Akron OH, US
Purushottam Agrawal - Akron OH, US
Narayanaswami Dharmarajan - Houston TX, US
Michael Williams - Humble TX, US
Sudhin Datta - Houston TX, US

C08L 23/04

525240000

This disclosure in certain embodiments relates to thermoplastic sheet compositions and applications incorporating such materials. More specifically this disclosure addresses thermoplastic sheets comprising: a) from 5 to 98.5 wt % of an essentially uncross-linked, random ethylene copolymer having from 20 wt % to 90 wt % repeat units from ethylene and from 10 wt % to 80 wt % of repeat units from one or more other ethylenically unsaturated monomers based upon the weight of the random ethylene copolymer; b) from 0.3 to 83.5 wt % of a polypropylene-based thermoplastic; and c) from 0.3 to 24.5 wt % of a vulcanized rubber dispersed phase. The disclosure also relates to methods of making the sheet compositions. One method includes incorporating a thermoplastic vulcanizate to provide the c) vulcanized rubber and in come cases, to supplement the b) polypropylene thermoplastic. Another method relates to melt blending polymer blends in appropriate proportions in the presence of a curing agent to effect dynamic vulcanization of a cross-linkable rubber component. Improved welding characteristics and weld strength of the sheets and reduced blocking in the extrusion step of producing the sheets is achieved.

8013069, Sep 6, 2011

Jan 13, 2006

11/332024

Bruce Allan Harrington - Houston TX, US
Michael Glenn Williams - Humble TX, US
Sudhin Datta - Houston TX, US
Srivatsan Srinivas Iyer - Pearland TX, US

Exxonmobil Chemical Patents Inc. - Houston TX

C08L 23/12

525191, 525240

Blends of at least two polymers incorporating propylene-derived units and processes for producing such blends are provided. The first polymer of the blend is a low crystallinity polymer including propylene-derived units. The second polymer is a high crystallinity polymer including propylene-derived units. The polymer blends exhibit the beneficial performance characteristics of low crystallinity propylene polymers while minimizing certain processing and handling problems associated with low crystallinity propylene polymers. Low crystallinity propylene polymer pellets often exhibit a tendency to agglomerate because of the softness of such particles. Agglomeration of the pellets creates problems in handling and processing the particles. The polymer blends disclosed reduce the tendency of polymer pellets to agglomerate while maintaining the desirable physical properties, such as elastomeric properties, exhibited by low crystallinity propylene polymers. Various processes for producing the polymer blends are also provided.

7105603, Sep 12, 2006

Jul 21, 2004

10/896549

Narayanaswami Raja Dharmarajan - Houston TX, US
Michael Glenn Williams - Humble TX, US
Sudhin Datta - Houston TX, US
Prasadarao Meka - Seabrook TX, US
Srivatsan Srinivas - Pearland TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08F 8/08, C08L 23/00, C08L 23/04

525191, 525240

Disclosed herein are various compositions that have particular utility in automotive components, including compositions that include: (a) polypropylene having a melting point of 110° C. or more; (b) ethylene α-olefin polymer in which the α-olefin is Cor higher; and (c) propylene polymer, having 60 wt % or more units derived from propylene, including isotactically arranged propylene derived sequences and a heat of fusion less than 45 J/g.

7585917, Sep 8, 2009

May 30, 2006

11/442932

Sudhin Datta - Houston TX, US
Michael Glenn Williams - Humble TX, US
Narayanaswami Raja Dharmarajan - Houston TX, US
Vetkav Rajagopalan Eswaran - Houston TX, US
Rui Zhao - Houston TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08L 23/00, C08L 23/04, C08L 23/10, C08L 23/16

525191, 525240

Described herein is a thermoplastic physical blend composition comprising (a) from 20 to 95 wt. % based on the total polymer content of a first polymer component that includes polypropylene having a melting point (Tm)≧110° C. ; and (b) from 80 to 5 wt. % based on the total polymer content of a second polymer component that includes a reactor blend obtainable from a solution process, the reactor blend including: (i) from 2 to 98 wt. % based on the total weight of the SPC of a propylene polymer having 60 wt. % or more units derived from propylene, including isotactically arranged propylene derived sequences and Tm

8617717, Dec 31, 2013

Oct 26, 2006

11/588204

Michael Glenn Williams - Humble TX, US
Hans Joachim Pip - Overijse, BE

ExxonMobil Chemical Patents Inc. - Houston TX

B32B 27/06, B32B 27/32, C08L 23/16

428516, 428523, 525240, 526916

A film structure having a base layer comprising a film-forming thermoplastic polymer; and a heat-seal layer having a seal-initiation temperature less than or about 130° C. and comprising from about 50 to about 98 wt % of a first polymer component and about 2 to about 50 wt % of a second polymer component. The first polymer component comprising propylene-derived units and, optionally, up to about 20 wt % of comonomer units derived from a Cand/or C-Cα-olefin, and having a heat of fusion greater than 75 J/g and a melting point greater than or equal to 105° C. The second polymer component comprising at least 75 wt % propylene-derived units, and having a melting point less than 105° C. and a heat of fusion less than 75 J/g.