WILLIAM N VANDERWERFF
Vehicle Board in West Chester, PA
License number
Pennsylvania MV093301L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
West Chester, PA 19382
Personal information
See more information about WILLIAM N VANDERWERFF at radaris.comName
Address
Phone
237 Green Tree Dr, West Chester, PA 19382
856 S High St, West Chester, PA 19382
Dingmans Ferry, PA
856 High St, West Chester, PA 19382
856S High St, West Chester, PA 19382
Professional information
Process For Making Aromatic Acids
US Patent:
4034005, Jul 5, 1977
Filed:
Jun 17, 1975
Appl. No.:
5/587756
Inventors:
Allen W. Hancock - Media PA
William D. Vanderwerff - West Chester PA
William D. Vanderwerff - West Chester PA
Assignee:
Sun Ventures, Inc. - St. Davids PA
International Classification:
C07C 6314, C07C 6306
US Classification:
260515P
Abstract:
A process for making an aromatic carboxylic acid of high purity by feeding an essentially equilibrium hydrolysis mixture of an aromatic nitrile to a reactive distillation column operated at a temperature of from about 200. degree. C. to about 325. degree. C. at autogenous pressure where the equilibrium mixture is subjected simultaneously to further hydrolysis and distillation of ammonia, removing water vapor and ammonia from the top of the column, subjecting remaining equilibrium hydrolysis mixture to further hydrolysis and distillation in a reboiler, returning vapor from the reboiler to the distillation column, removing an aqueous solution of product acid from the reboiler, cooling said separated solution, separating acid product, and in order to improve product purity, returning the aqueous filtrate from said separated acid product to a lower portion of said column. In one embodiment of the invention the hydrolysis mixture is obtained by subjecting a nitrile from the ammoxidation of an alkyl aromatic compound to aqueous hydrolysis in a closed reactor at about 200. degree. to about 325. degree. C.
Phenyltetralylbutane As Vinyl Plasticizer
US Patent:
4444938, Apr 24, 1984
Filed:
Jun 7, 1982
Appl. No.:
6/385958
Inventors:
Eugene L. Coggins - Malvern PA
William D. Vanderwerff - West Chester PA
William D. Vanderwerff - West Chester PA
Assignee:
Sun Tech, Inc. - Philadelphia PA
International Classification:
C08K 501
US Classification:
524476
Abstract:
Phenyltetralylbutane (PTB) is used to plasticize polyvinylchloride (PVC) resins. The PTB in one embodiment is prepared by refluxing tetralin an flowing condensed vapors of the tetralin over a bed of strongly acidic catalyst, which may for example be a synthetic acid "Y" type zeolite. In one embodiment, the PTB is used as a secondary plasticizer, with a primary plasticizer such as di(2-ethyl)hexyl phthalate.
Hydrolysis Of Aromatic Nitriles To Carboxylic Acids
US Patent:
4069248, Jan 17, 1978
Filed:
Dec 3, 1976
Appl. No.:
5/747152
Inventors:
William D. Vanderwerff - West Chester PA
Assignee:
Sun Oil Company of Pennsylvania - Philadelphia PA
International Classification:
C07C 5108
US Classification:
260515P
Abstract:
In the non-catalytic hydrolysis to equilibrium of an aromatic nitrile, the improvement of carrying out such hydrolysis in the presence of a neutral salt whereby nitrogen impurities in the acid product are reduced.
Process For Making Naphthalene Hydrodimer Mixtures, Product Mixtures Made Thereby And Their Use As A Plasticizer
US Patent:
4458047, Jul 3, 1984
Filed:
Jun 7, 1982
Appl. No.:
6/385957
Inventors:
William D. Vanderwerff - West Chester PA
Assignee:
Sun Tech, Inc. - Philadelphia PA
International Classification:
C08K 501
US Classification:
524476
Abstract:
A novel process for making novel naphthalene hydrodimer mixtures which contain PTB in varying amounts and have improved plasticizing properties over PTB alone. The improved plasticizing composition is prepared by contacting a mixture of a hydronaphthalene (e. g. , tetralin or an alkyltetralin) and naphthalene or an alkylnaphthalene with a strong acid catalyst. Another embodiment of the invention is the plasticized composition.
Stabilized Coal-Oil Slurry And Process
US Patent:
4149855, Apr 17, 1979
Filed:
Jun 8, 1978
Appl. No.:
5/913781
Inventors:
Edward M. Kohn - Philadelphia PA
William D. Vanderwerff - West Chester PA
William D. Vanderwerff - West Chester PA
Assignee:
Suntech, Inc. - Philadelphia PA
International Classification:
C10L 132
US Classification:
44 51
Abstract:
Coal-oil slurries are stabilized by incorporation of a mixture comprised of a hydrogenated coal liquid and a grease made from an aluminum based complex soap.