RICHARD W POWELL, II
Electrician at Little Cypress Dr, Orange, TX
License number
Texas 23223
Expiration Date
May 12, 2017
Category
Journeyman Electrician
Address
Address
3442 Little Cypress Dr, Orange, TX 77632
Phone
(409) 920-0351
Organization information
See more information about RICHARD W POWELL at bizstanding.comRichard W Powell II
3442 Little Cypress Dr, Orange, TX 77632
Industry:
Business Services at Non-Commercial Site
Principal:
Richard W. Powell (Principal)
Professional information
High Melt Swell Polymer
US Patent:
6518365, Feb 11, 2003
Filed:
Jul 28, 2000
Appl. No.:
09/629918
Inventors:
Richard James Powell - Orange TX
Richard T. Chou - Hockessin DE
George W. Prejean - Orange TX
Richard T. Chou - Hockessin DE
George W. Prejean - Orange TX
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C08F 844
US Classification:
525274, 525301
Abstract:
The present invention relates to high melt swell partially neutralized alpha olefin acid copolymers. It also relates to a process for making such high melt swell polymers as well as for covalently crosslinking other polar copolymers including non-neutralized acid copolymers and non-polar alpha olefin polymers by using a minor amount of metal acrylate, particularly sodium or zinc acrylate.
Process For Preparing Ionically Crosslinked Copolymers
US Patent:
3969434, Jul 13, 1976
Filed:
Oct 29, 1973
Appl. No.:
5/410884
Inventors:
Richard James Powell - Orange TX
George Wyatt Prejean - Orange TX
George Wyatt Prejean - Orange TX
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08L 2308
US Classification:
260897B
Abstract:
Process for ionically crosslinking first copolymers formed by copolymerizing at least one alpha-olefin of the general formula RCH=CH. sub. 2 where R is hydrogen or hydrocarbyl having 1 to 8 carbon atoms and at least one alpha, beta-ethylenically unsaturated carboxylic acid having 1 to 2 carboxylic acid groups and 3 to 8 carbon atoms, the alpha-olefin content of the first copolymer comprising at least 50 mole percent of the first copolymer, the alpha, beta-ethylenically unsaturated acid content of said first copolymer comprising 0. 2 to 25 mole percent of the first copolymer which comprises mixing the first copolymer with a cation-supplying blend of 20 to 80 percent by weight of substantially water-insoluble zinc oxide and/or zinc hydroxide and/or zinc carbonate, 0 to 10 percent by weight of a lubricant and a complemental amount of a second copolymer with a melt index of 50 to 2000 g. /10 min. formed as the first copolymer, at a pressure of 100 to 10,000 p. s. i. , at a temperature above the melting point of both the first and second copolymers and between 100. degree. C. and 330. degree. C.
Silica Coated Olefin-Acid Copolymer Molding Pellets
US Patent:
4663383, May 5, 1987
Filed:
Feb 25, 1986
Appl. No.:
6/832726
Inventors:
David J. Lowe - Wilmington DE
Richard J. Powell - Orange TX
Malcolm S. Smith - Beaumont TX
Richard J. Powell - Orange TX
Malcolm S. Smith - Beaumont TX
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08K 334
US Classification:
524493
Abstract:
Ethylene copolymers or terpolymers containing repeating units derived from ethylenically unsaturated carboxylic acids which have been surface treated with from 0. 005 to 2 wt. % silica to reduce surface tackiness are disclosed.
Flexible, Low Haze Chlorine-Free Ethylene Copolymer Article
US Patent:
5399401, Mar 21, 1995
Filed:
Feb 22, 1994
Appl. No.:
8/200809
Inventors:
Richard J. Powell - Orange TX
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08K 520
US Classification:
428 369
Abstract:
Highly flexible articles having wall thickness of at least 0. 01 inches are made from chlorine-free direct ethylene copolymers containing small amounts of selected known slip additives. Articles in the form of tubes or tubing have particular utility for replacement of PVC based tubing used in medical applications.
Stabilized Copolymers Of Ethylene With Ethylenically Unsaturated Carboxylic Acids
US Patent:
5276135, Jan 4, 1994
Filed:
Jan 11, 1993
Appl. No.:
8/003819
Inventors:
Richard J. Powell - Orange TX
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08F 600
US Classification:
528483
Abstract:
The viscosity stability of a copolymer of ethylene with at least one comonomer which is an ethylenically unsaturated carboxylic acid is improved by exposing the isolated copolymer to moisture for a sufficient period to cause the copolymer to retain at least 20 weight percent more water than it would retain if it were purged with air or nitrogen heated to a temperature at least 5. degree. C. above ambient, which air or nitrogen has not been humidified after it has been heated to such temperature.
Cook-In Packaging And Methods Relating Thereto
US Patent:
5827559, Oct 27, 1998
Filed:
Jan 29, 1997
Appl. No.:
8/789908
Inventors:
Richard James Powell - Orange TX
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:
A23B 0000, B65D 5500, C12C 304
US Classification:
426412
Abstract:
Heat sealable films for packaging food products, particularly in applications where the packaged food product is heated at high temperatures in a hot water bath. The films have a sealant layer containing an acid copolymer. The acid copolymer has a high degree of ethylene crystallinity and therefore an unusually high melting temperature. The sealant layer provides excellent seal strength and excellent adhesion to meat, particularly poultry, even during hot water immersion.
High Melt Swell Polymer
US Patent:
6903163, Jun 7, 2005
Filed:
Sep 19, 2002
Appl. No.:
10/246910
Inventors:
Richard James Powell - Orange TX, US
Richard T. Chou - Hockessin DE, US
George W. Prejean - Orange TX, US
Richard T. Chou - Hockessin DE, US
George W. Prejean - Orange TX, US
Assignee:
E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C08F008/42
US Classification:
525274, 525301, 5253302, 525336, 525367, 525370, 525371
Abstract:
The present invention relates to high melt swell partially neutralized alpha olefin acid copolymers. It also relates to a process for making such high melt swell polymers as well as for covalently crosslinking other polar copolymers including non-neutralized acid copolymers and non-polar alpha olefin polymers by using a minor amount of metal acrylate, particularly sodium or zinc acrylate.