Gary R Marchand

US Patent:

6706815, Mar 16, 2004

Filed:

Jul 31, 2002

Appl. No.:

10/210466

Inventors:

Gary R. Marchand - Baton Rouge LA
Mark T. Berard - Baton Rouge LA

Assignee:

DuPont Dow Elastomers L.L.C. - Wilmington DE

International Classification:

C08K 300

US Classification:

525191, 525210, 525213, 525239, 525240, 525241, 524425

Abstract:

The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a) a vinyl chloride polymer, b) at least one ethylene/alpha-olefin copolymer, said copolymer having a density of 0. 858 to 0. 91 g/cc and having a melt index from an I value of 0. 1 to an I value of 10, and c) at least one randomly chlorinated olefin polymer having a chlorine content of from 20-40 percent by weight, the feedstock for said chlorinated olefin polymer having a melt index from an I value of 0. 1 to an I value of 10. Optionally, these impact resistant polyvinyl chloride compositions may have inorganic filler levels from 5 to 50 parts per hundred relative to the polyvinyl chloride polymer.

US Patent:

6875820, Apr 5, 2005

Filed:

Apr 18, 2001

Appl. No.:

10/221228

Inventors:

Mark Thomas Berard - Baton Rouge LA, US
Virginia Hayes Guffey - Baton Rouge LA, US
Gary Robert Marchand - Baton Rouge LA, US

Assignee:

DuPont Dow Elastomers LLC - Wilmington DE

International Classification:

C08F214/06

US Classification:

5253315, 5253317, 5253319, 5253321, 525356

Abstract:

Chlorinated olefin polymers prepared from olefin polymer base resins having Ivalues of 0. 05-0. 8 dg/minute act as impact modifiers for vinyl chloride polymers under low to ambient temperature conditions. When vinyl chloride polymers are mixed with a preferred class of the chlorinated polymers, having chlorine contents of 20-30 percent by weight, compositions that exhibit short fusion times and low fusion temperatures are produced.

US Patent:

7144934, Dec 5, 2006

Filed:

Oct 22, 2003

Appl. No.:

10/691163

Inventors:

Carlos Gilberto Ortiz - Houston TX, US
Peter Anthony Fox - Galveston TX, US
Raymond L. Laakso - St. Francisville LA, US
Gary Robert Marchand - Gonzales LA, US
Steven R. Oriani - Landenberg PA, US
Walter Werner Schmiegel - Wilmington DE, US
Michael K. Laughner - Lake Jackson TX, US
Deepak R. Parikh - Singapore, SG

Assignee:

Dow Global Technologies Inc. - Midland MI

International Classification:

C08K 5/17
H01B 7/00

US Classification:

524 99, 524140, 524251, 524554, 524570, 524579, 528490, 528492, 174110 SR, 174137 B

Abstract:

Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that are at least 50% less than the corresponding olefinic interpolymer compositions which have not been treated with charge dissipation modifiers. The compositions are useful in wire and cable applications.

US Patent:

8519059, Aug 27, 2013

Filed:

Feb 15, 2013

Appl. No.:

13/768279

Inventors:

Gary R. Marchand - Gonzales LA, US
Sandra Watson - Brusly LA, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08C 19/20
C08C 19/22
C08F 8/34

US Classification:

525350, 5253261, 5253314, 5253315, 525343, 525351, 525374, 525375, 525381, 525382

Abstract:

The invention provides articles obtained from curing a composition consisting of a polymercapto crosslinking agent, a vulcanization accelerator, an inorganic base, a nitrogen containing chelating agent, wherein the nitrogen containing chelating agent is selected from the group consisting of 1,10-phenanthroline and 2,2-bipyridyl, and polyethylenimine; and a halogenated elastomer; wherein said nitrogen containing chelating agent is soluble in said halogenated elastomer.

US Patent:

20030144423, Jul 31, 2003

Filed:

Dec 11, 2002

Appl. No.:

10/316443

Inventors:

Gary Marchand - Baton Rouge LA, US
Mark Berard - Baton Rouge LA, US

International Classification:

C08L027/06

US Classification:

525/239000

Abstract:

The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a) a vinyl chloride polymer, b) at least one ethylene/alpha-olefin copolymer, said copolymer having a density of 0.858 to 0.91 g/cc and having a melt index from an Ivalue of 0.1 to an Ivalue of 50, preferably from an Ivalue of 0.1 to an Ivalue of 30, and most preferably from an Ivalue of 0.1 to an Ivalue of 20, and c) at least one randomly chlorinated olefin polymer having a chlorine content of from 20-40 percent by weight, the feedstock for said chlorinated olefin polymer having a melt index from an Ivalue of 0.1 to an Ivalue of 10. Optionally, these impact resistant polyvinyl.chloride compositions may have inorganic filler levels from 5 to 50 parts per hundred relative to the polyvinyl chloride polymer.

US Patent:

20040236022, Nov 25, 2004

Filed:

Mar 4, 2004

Appl. No.:

10/488843

Inventors:

Gary Marchand - Baton Rouge LA, US
Mark Berard - Baton Rogue LA, US

International Classification:

C08L027/06
C08L023/00
C08L023/04

US Classification:

525/192000, 525/239000, 525/240000

Abstract:

The present invention is specifically directed to improved polyvinyl chloride compositions having excellent impact strength. In particular, the impact resistant composition comprises a) a vinyl chloride polymer, b) at least one ethylene/alpha-olefin copolymer, said copolymer having a density of 0.858 to 0.91 g/cc and having a melt index from an Ivalue of 0.1 to an Ivalue of 10, and c) at least one randomly chlorinated olefin polymer having a chlorine content of from 20-40 percent by weight, the feedstock for said chlorinated olefin polymer having a melt index from an Ivalue of 0.1 to an Ivalue of 10. Optionally, these impact resistant polyvinyl chloride compositions may have inorganic filler levels from 5 to 50 parts per hundred relative to the polyvinyl chloride polymer.

US Patent:

20120178865, Jul 12, 2012

Filed:

Sep 29, 2009

Appl. No.:

13/497537

Inventors:

Yabin Sun - Shanghai, CN
Gary R. Marchand - Gonzales LA, US
Xiang Yang Tai - Shanghai, CN
Shuwen Peng - Shanghai, CN
Shaoguang Feng - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08K 3/06
C08F 236/20
C08L 81/04

US Classification:

524418, 525189, 526336

Abstract:

The invention provides a composition comprising at least the following: A) interpolymer comprising, in polymerized form, ethylene, an α-olefm and a nonconjugated polyene; B) sulfur; C) at least one phase transfer catalyst (PTC) selected from the group consisting of the following: Formula (1), wherein each R group is, independently, an alky group having from 4 to 32 carbon atoms, and X is a halogen ion; Formula (2), Wherein the R group is an alky group having from 4 to 32, and X is a halogen ion; Formula (3), wherein R1 is the alky group having from 1 to 4 carbon atoms, R2 is an alkyl group having from 1 to 32 carbon atoms, and X is a halogen ion; and combinations of (1), (2) and (3); and D) at least one primary accelerator selected from the group consisting of the following: Formula (a), wherein R is H, or a heterocyclic substituent; Formula (b), wherein M is Zn, K, Na, Cu or an alkyl ammonium; Formula (c), wherein R′ and R″ are each, independently, H, an alkyl, a cyclic alkyl, an aromatic, or a heterocyclic substituent, or wherein R′ and R″ together form a cyclic structure; Formula (d), wherein R, R′, R″ and R′″ are each, independently, H, an alkyl, a cyclic alkyl, an aromatic, or a heterocyclic substituent; or wherein R and R′ are each, independently, H, an alkyl, a cyclic alkyl, an aromatic, or a heterocyclic substituent, and R″ and R′″ together form a cyclic structure; or wherein R″ and R′″ are each, independently, H, an alkyl, a cyclic alkyl, an aromatic, or a heterocyclic substituent, and R and R′ together form a cyclic structure; or wherein R″ and R′″ together form a cyclic structure, and R and R′ together form a cyclic structure; and combinations thereof.

US Patent:

20120208946, Aug 16, 2012

Filed:

Oct 1, 2010

Appl. No.:

13/499859

Inventors:

Colin Li Pi Shan - Pearland TX, US
Kim L. Walton - Lake Jackson TX, US
Gary R. Marchand - Gonzales LA, US
Ashish Batra - Indianapolis IN, US
Eddy I. Garcia-Meitin - Angleton TX, US
Jeffrey D. Weinhold - Lake Jackson TX, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08L 53/00
B82Y 30/00

US Classification:

524505, 524570, 977700

Abstract:

Embodiments of the invention provide block composites and their use in soft compounds.