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Walter S Ropp Deceased2215 Shipley Rd, Wilmington, DE 19803

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Known as:
Wr Opp Ropp Watler Maria Esquivel Carmen Uribe
Related to:
Julia L Parker 28

Walter Ropp Phones & Addresses

440 Gulfview Blvd, Clearwater Beach, FL 33767 (727) 446-3791

Clearwater, FL

2215 Shipley St, Wilmington, DE 19803 (302) 478-1252

350 Mockingbird Hill Rd, Hockessin, DE 19707 (302) 239-7166

Newark, DE

Mentions for Walter S Ropp

Publications & IP owners

Us Patents

Method Of Preparing Hydroxyethyl Ethers Of Cellulose

US Patent:
4298728, Nov 3, 1981
Filed:
Jun 3, 1980
Appl. No.:
6/155919
Inventors:
Thomas G. Majewicz - Chadds Ford PA
Walter S. Ropp - Hockessin DE
Assignee:
Hercules Incorporated - Wilmington DE
International Classification:
C08G 5900
C08G 6508
US Classification:
536 96
Abstract:
In preparation of hydroxyethyl ethers of cellulose, ethylene oxide efficiency of the reaction and solubility characteristics of the product are improved by using alkali cellulose which has been prepared in the presence of boric acid or a boric acid salt.

Process For Producing Spherical Particles Or Crystalline Polymers

US Patent:
4254207, Mar 3, 1981
Filed:
Dec 26, 1979
Appl. No.:
6/107471
Inventors:
Leo M. Landoll - Wilmington DE
Walter S. Ropp - Hockessin DE
Assignee:
Hercules Incorporated - Wilmington DE
International Classification:
C08L 6706
C08L 7700
G03G 900
US Classification:
430137
Abstract:
A process for producing uniformly small spherical particles of crystalline, normally solid condensation polymers is described. The process of this invention further provides high yields of hydrophobic, non-agglomerating particles in a useful size range directly, without the need for subsequent processing, and is carried out by forming a dispersion of small liquid particles of the crystalline polymer in certain aprotic liquids containing 0. 1 to 20% by weight of the polymer of an acid-modified polymer of propylene in a specified manner, cooling the dispersion with agitation until the liquid particles solidify and recovering the particles.

Possible Relatives

Ezra J Ropp  Frances Ropp  Adam G Ropp  Jennifer L Ropp  John Ropp  Michael E Ropp  Michelle S Ropp  Walter V Stanek  Walter J Stange  Walter E Starck 

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