PAUL R RICHARDSON
Real Estate Commission in Wilmington, DE
License number
Pennsylvania NS130837A
Category
Real Estate Commission
Type
Real Estate Salesperson-Standard
Address
Address
2
Wilmington, DE 19808
Pennsylvania
Pennsylvania
Professional information
Polyamide Nucleated With Zinc Phenyl Phosphinate Or Zinc Phenyl Phosphonate
US Patent:
4200707, Apr 29, 1980
Filed:
Aug 11, 1978
Appl. No.:
5/933077
Inventors:
Paul N. Richardson - Wilmington DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08L 7706
US Classification:
525 2
Abstract:
A blend of a condensation polyamide and zinc phenyl phosphinate and/or zinc phenyl phosphonate nucleating agent has been found to result in resins having good strength.
Polyoxymethylene/Polyurethane Compositions Containing Polycarbodiimide
US Patent:
4845161, Jul 4, 1989
Filed:
Nov 23, 1987
Appl. No.:
7/125754
Inventors:
Paul N. Richardson - Wilmington DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08L 7504
US Classification:
525399
Abstract:
Polyoxymethylene/thermoplastic polyurethane compositions having 5-40 weight percent polyurethane are modified by incorporating therein 0. 05-1. 0 weight percent of a polycarbodiimide (or a mixture of polycarbodiimides) having a molecular weight of about 1000 and containing units of the formula ##STR1## where n has an average value of about 3, to improve resistance to discoloration and decomposition.
Toughened Polyamide Flame Retarded With Octabromodiphenyl Ether
US Patent:
4376182, Mar 8, 1983
Filed:
Apr 28, 1982
Appl. No.:
6/372560
Inventors:
Paul N. Richardson - Wilmington DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08K 506
US Classification:
524371
Abstract:
Toughened flame retardant polyamide molding blend containing a selected octabromodiphenyl ether and a polymeric toughening agent.
Flame-Retardant Polyamide Compositions
US Patent:
4373049, Feb 8, 1983
Filed:
Nov 5, 1981
Appl. No.:
6/318349
Inventors:
Paul N. Richardson - Wilmington DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08K 506
US Classification:
524375
Abstract:
A flame-retardant polyamide composition is described which is non-brittle. The composition is comprised of a nylon 66 or nylon 66/6, a brominated polystyrene, antimony oxide and a selected non-ionic surfactant.
Polyamide Resins
US Patent:
4283502, Aug 11, 1981
Filed:
Apr 7, 1980
Appl. No.:
6/138249
Inventors:
Paul N. Richardson - Wilmington DE
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08L 7700
US Classification:
525 66
Abstract:
A melt compounded blend of a nylon resin and a small amount of a finely divided adduct which contains a requisite amount of anhydride functionality. The adduct polymer is found to provide nucleating effects to the resultant blend.