Patents by Inventor Pen C. Wang
Pen C. Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5406003Abstract: A phenolic compound is provided which can be described by the formula ##STR1## in which Ar is a C.sub.6-20 aromatic moiety, L is a cyclohexanenorbornane linking moiety, L' is a divalent cycloaliphatic moiety, and each of m and n is a number within the range of 0 to about 10. Such phenols include the product of the addition reaction of phenol with a cyclohexenenorbornene compound such as 5-(3-cyclohexen-1-yl)bicyclo[2.2.1 ]hept-2-ene.Type: GrantFiled: August 25, 1994Date of Patent: April 11, 1995Assignee: Shell Oil CompanyInventors: Pen C. Wang, Donald R. Kelsey
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Patent number: 5382713Abstract: A phenolic compound is provided which can be described by the formula ##STR1## in which Ar is a C.sub.6-20 aromatic moiety, L is a cyclohexanenorbornane linking moiety, L' is a divalent cycloaliphatic moiety, and each of m and n is a number within the range of 0 to about 10. Such phenols include the product of the addition reaction of phenol with a cyclohexenenorbornene compound such as 5-(3-cyclohexen-1-yl)bicyclo[2.2.1]hept-2-ene.Type: GrantFiled: February 5, 1993Date of Patent: January 17, 1995Assignee: Shell Oil CompanyInventors: Pen C. Wang, Donald R. Kelsey
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Patent number: 5164470Abstract: Novel polymers containing silicon moieties and moieties of a 1,6-diaza [4.4] spirodilactam are produced by reaction of an aminohydrocarbyl silyl compound and a spirodilactam precursor selected from ketodicarboxylic acid compound or a 1,6-dioxa [4.4] spirodilactone.Type: GrantFiled: August 19, 1991Date of Patent: November 17, 1992Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5142022Abstract: Novel thermosetting resin compositions are disclosed which comprise a 2,7-dioxo-1,6-dioxaspiro[4.4]nona-3,8-diene compound and at least one other reactive, polymerizable monomer which has at least two functional group substituents which contain active hydrogen atoms or multiple bonds between adjacent atoms. The thermosetting resins, upon application of heat, give crosslinked, cured products having good properties.Type: GrantFiled: February 25, 1991Date of Patent: August 25, 1992Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5128436Abstract: Novel cyclic oligomers contain moieties of 2-hydroxyl-1,3-propylene alternating with moieties of 1,6-di(oxyphenyl) 1,6-diaza [4.4] spirodilactam and, optionally, di(oxyphenyl) compound. The oligomers are thermoplastic resin of the phenoxy resin type.Type: GrantFiled: August 19, 1991Date of Patent: July 7, 1992Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5082923Abstract: Cyanatoaryl-substituted 1,6-diaza[4.4]spirodilactam having a cyanatoaryl-containing substituent on each spiro ring nitrogen atom self-cure upon application of heat to produce cured, crosslinked thermoset resins of high glass transition temperature.Type: GrantFiled: May 17, 1990Date of Patent: January 21, 1992Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5059674Abstract: Arylcyclobutenealkyl ethers of hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactams having a hydroxyaryl substituent on each spiro ring nitrogen atom are self-curing upon application of heat to produce cured products of relatively high glass transition temperature having good physical properties.Type: GrantFiled: April 9, 1990Date of Patent: October 22, 1991Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5049640Abstract: Polymeric polyetherketones characterized by relatively high glass transition temperatures comprise moieties derived from a halo-substituted aryl ketone alternating with moieties derived from a hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactam having the hydroxyaryl substituents on the spiro ring nitrogen atoms and, optionally, moieties derived from a di(hydroxyphenyl) compound.Type: GrantFiled: February 23, 1989Date of Patent: September 17, 1991Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5034504Abstract: Novel polyamide polymers incorporating moieties of a [4.4] spirodilactam with spiro ring nitrogens in the 1- and 6- spiro ring positions and moieties of a primary diamine are produced by reaction of the primary diamine and a spirodilactam precursor selected from 4-oxoheptanediotic acid compounds or [4.4] spirodilactones having spiro ring oxygen atoms in the 1- and 6- spiro ring positions.Type: GrantFiled: May 14, 1990Date of Patent: July 23, 1991Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 5013805Abstract: A novel class of cured products is derived from unsaturated polycylic ethers or esters comprising unsaturated ether or ester derivatives of a hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactum having a hydroxyaryl substitute attached to each spiro ring nitrogen atom.Type: GrantFiled: May 26, 1989Date of Patent: May 7, 1991Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4981976Abstract: Cyanatoaryl-substituted 1,6-diaza[4.4]spirodilactam having a cyanatoaryl-containing substituent on each spiro ring nitrogen atom self-cure upon application of heat to produce cured, crosslinked thermoset resins of high glass transition temperature.Type: GrantFiled: February 23, 1989Date of Patent: January 1, 1991Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4968810Abstract: Arylcyclobutenealkyl ether of hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactams having a hydroxyaryl substituent on each spiro ring nitrogen atom are self-curing upon application of heat to produce cured products of relatively high glass transition temperature having good physical properties.Type: GrantFiled: March 17, 1989Date of Patent: November 6, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4968811Abstract: Novel 1,6-diaza[4.4]spirodilactams having a hydroxyaryl substituent on each spiro ring nitrogen atom and at least one alkenyl group located on an aromatic ring carbon atom which is ortho to the hydroxy of the hydroxyaryl substituents are produced by Claisen Rearrangement of an alkenyl ether of the hydroxyaryl-substituted spirodilactam having one fewer ortho-alkenyl substituent.Type: GrantFiled: May 24, 1989Date of Patent: November 6, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4968770Abstract: Novel polyamide polymers incorporating moieties of a [4.4] spirodilactam with spiro ring nitrogens in the 1- and 6- spiro ring positions and moieties of a primary diamine are produced by reaction of the primary diamine and a spirodilactam precursor selected from 4-oxoheptanedioic acid compounds or [4.4] spirodilactones having spiro ring oxygen atoms in the 1- and 6- spiro ring positions.Type: GrantFiled: September 16, 1988Date of Patent: November 6, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4940801Abstract: Novel unsaturated derivatives of 1,6-diaza [4,4] spirodilactams having a monovalent unsaturated substituent on each spiro ring nitrogen atom are produced by reaction of an unsaturated amine and a spirodilactam precursor selected from a 4-oxoheptanedioic acid compound or a 1,6-dioxo [4,4] spirodilactone.Type: GrantFiled: May 24, 1989Date of Patent: July 10, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4939270Abstract: Primary diamines, employed in stoichiometric excess, react with a spirodilactam precursor selected from 4-oxoheptandioic acid compounds or 1,6-dioxaspiro[4.4]nonane-2,7-diones, to produce 1,6-diaza[4.4]spirodilactams having an amino-containing substituent on each spiro ring nitrogen atom. The spirodilactams are useful in the production of thermoplastic polyamides by reaction with diacids and as curing agents for epoxy resins in the production of thermoset resins.Type: GrantFiled: February 23, 1989Date of Patent: July 3, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4939251Abstract: Novel 1-azaspiro[4.4] lactams are produced by reaction of at least one hydroxy-containing primary amino compound with a 4-ketodiacid compound or a 1,6-dioxaspiro[4.4]lactone. Molar excesses of amion compound result in production of spirodilactams, while limited molar quantities of amino compound results in production of a spirolactam-lactone which reacts further with hydroxy-containing primary amino compound or with hydroxy-free primary amino compound to produce a spirodilactam. Certain of the spirolactams are useful as precursors for glycidyloxy derivatives which react with epoxy curing agents to form insoluble thermoset resins while others are useful as curing agents and yet others are converted to glycidyloxy derivatives useful as reactive diluents in epoxy resin applications.Type: GrantFiled: September 16, 1988Date of Patent: July 3, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4935489Abstract: The invention provides a novel class of thermoplastic polycyclic sulfone polymers incorporating within the polymer chain two different types of cyclic structures. More particularly, it provides polyspirodilactamsulfones wherein moieties of an aryl sulfone alternate with moieties of an oxyaryl-substituted 1,6-diaza[4.4] spirodilactam and, optionally, moieties of a di(oxyphenyl) compound.Type: GrantFiled: March 17, 1989Date of Patent: June 19, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4933423Abstract: Novel thermosetting resin compositions comprise a mixture of the epoxyalkylether of a 1,6-diaza[4.4]spirodilactam having a hydroxyaryl substituent on each of the spiro ring nitrogen atoms, and at least one diamine compound. The cured compositions obtained by heating the resin compositions to an elevated temperature have relatively high glass transition temperatures and good physical properties.Type: GrantFiled: April 7, 1989Date of Patent: June 12, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang
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Patent number: 4927906Abstract: Novel polymers containing amide and imide moieties are produced by reaction of a spirodilactam precursor selected from 4-oxoheptanedioic acid compounds or 1,6-dioxa [4,4] spirodilactones, a primary diamine and an aromatic tricarboxylic acid compound. The polymer products have relatively high glass transition temperatures.Type: GrantFiled: December 15, 1988Date of Patent: May 22, 1990Assignee: Shell Oil CompanyInventor: Pen C. Wang