Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Lubowitz; Hyman R.
Address:
Rolling Hills Estates, CA
No. of patents:
81
Patents:


1 2










Patent Number Title Of Patent Date Issued
RE34820 Amideimide sizing for carbon fiber January 3, 1995
Sizing for carbon fibers with uncapped or capped linear polyamideimides.The uncapped linear polyamideimides useful as carbon fiber sizings generally contain repeating units having the general formula: ##STR1## Wherein R.sub.2 =a trivalent organic radical and generally benzenetriyl;R.sub.
6583255 Polyester oligomer June 24, 2003
High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcohols (i.e. diols). Multidimensiona
6569954 Composites from blends of advanced oligomers May 27, 2003
The physical properties of high performance composites can be tailored by using blends to make the composites. The resulting composites are relatively easy to make and have long-term, high performance capabilities even in harsh service conditions. The blends of the present invention
5969079 Oligomers with multiple chemically functional end caps October 19, 1999
Thermomechanical and thermo-oxidative stabilities in resin composites across the range of aerospace "engineering thermoplastic" resins are improved by forming four crosslinks at each addition polymerization site in the backbone of the resin using crosslinking functionalities of the g
5968640 Conductive, thermally stable oligomers October 19, 1999
The morphology of multidimensional, thermally stable oligomers is combined with the inclusion of charge carrier linkages within the polymer arms to produce thermally stable advanced composites from cured oligomers that are conductive or semiconductive if suitably doped.
5817744 Phenylethynyl capped imides October 6, 1998
The physical properties of high performance composites can be tailored by using blends to make the composites. The resulting composites are relatively easy to make and have long-term, high performance capabilities even in harsh service conditions. The blends of the present invention
5817738 Conductive, multidimensional oligomers and blends October 6, 1998
The morphology of multidimensional oligomers is combined with the inclusion of charge carrier linkages within the oligomer arms to produce oligomers that are useful for preparing conductive or semiconductive composites, if suitably doped. The Schiff base linkages are prepared by the cond
5780583 Reactive polyarylene sulfide oligomers July 14, 1998
Crosslinkable poly(arylene sulfide) oligomers are prepared by reaction of a dihaloaromatic compound, a sulfur compound that is reactive with halo organic compounds to form thioethers, and an end cap monomer corresponding to the formula:where A is an alpha, beta-unsaturated hydrocarbon mo
5756645 Multidimensional polyesters May 26, 1998
The yield of fully substituted, multidimensional aromatic hubs in the condensation of hydroxyl and acid halide functionalities is improved by adding a thallium catalyst, such as thallium ethoxide (Tl-OC.sub.2 H.sub.5), in the solvent.
5739256 Method for making multidimensional polyester oligomers April 14, 1998
High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcohols (i.e. diols). Multidimensiona
5705598 Polyester sulfone oligomers and blends January 6, 1998
High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcobols (i.e. diols). Multidimensiona
5705574 Method for making a polyimide blend January 6, 1998
Polyimide oligomers include (1) linear, mono-functional crosslinking oligomers prepared by condensing a monoanhydride end cap with a diamine that includes alternating ether and "sulfone" (--SO.sub.2 --, --S--, --CO--, --(CF.sub.3).sub.2 C--, or --(CH.sub.3).sub.2 C--) linkages connec
5693741 Liquid molding compounds December 2, 1997
Low molecular weight resins that usually are aliphatic and that include crosslinking thermal functional groups are useful as liquid molding compounds for reaction injection molding or resin transfer molding. The compounds eliminate the need to handle solvents when preparing thermoset
5654396 Polyimide oligomers August 5, 1997
We achieve solvent resistance and extended use life for advanced polyimides by including at least some solvent-resistant linkages in the backbone in place of phenoxyphenyl sulfone linkages and using diPEPA or PEPA crosslinking end caps.
5645925 Advanced composite blends July 8, 1997
The physical properties of high performance composites can be tailored by using blends to make the composites. The resulting composites are relatively easy to make and have long-term, high performance capabilities even in harsh service conditions. The blends of the present invention
5618907 Thallium catalyzed multidimensional ester oligomers April 8, 1997
The yield of fully substituted, multidimensional aromatic hubs in the condensation of hydroxyl and acid halide functionalities is improved by adding a thallium catalyst, such as thallium ethoxide (Tl--OC.sub.2 H.sub.5), in the solvent.
5602226 Method of making multidimensional polyesters February 11, 1997
The yield of fully substituted, multidimensional aromatic hubs in the condensation of hydroxyl and acid halide functionalities is improved by adding a thallium catalyst, such as thallium ethoxide (T1-OC.sub.2 H.sub.5), in the solvent.
5587105 Methods for making liquid molding compounds using diamines and dicyanates December 24, 1996
Low molecular weight resins that usually are aliphatic and that include crosslinking thermal functional groups are useful as liquid molding compounds for reaction injection molding or resin transfer molding. The compounds eliminate the need to handle solvents when preparing thermoset
5576468 Methods for encapsulating waste and products thereof November 19, 1996
A method for disposing of waste material employs an agglomerate formed by molding an admixture of waste material and thermosetting binder. The use of a thermoplastic resin sheet in conjunction with the agglomeration mold promotes the safety of the molding process. Dust and mold leakage i
5573854 Composites made from multidimensional oligomers November 12, 1996
Multidimensional oligomers of the present invention are surprisingly useful for advanced composites because each generally has a use temperature greatly in excess of its curing temperature. The oligomers have essentially no arms, and comprise crosslinking phenylimide end caps condens
5554769 Extended end cap monomer for making advanced composites September 10, 1996
The solvent-resistance and thermal stability of polyamideimides of the general formulae: ##STR1## is improved by capping the amideimides with a crosslinking functionality (Y) containing a residue selected from the group of: ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy,
5550204 Ether and ester oligomers with multidimensional morphology August 27, 1996
Crosslinkable, polyaromatic, polyether or polyester oligomers can have glass transition temperatures above 900.degree. F. while exhibiting desirable toughness for aerospace applications and ease of processing. A plurality (i.e. three or more) of generally linear aryl arms extend outw
5530089 Polysulfoneimides June 25, 1996
Polysulfoneimide oligomers having crosslinking end cap moleties which provide improved solvent-resistance to cured composites are generally represented by backbones of the formula: ##STR1## wherein ##STR2## n=1 or 2; R and R' are divalent aromatic organic radicals having from
5521014 Extended multidimensional ether or ester oligomers May 28, 1996
Crosslinkable, polyaromatic, polyether or polyester oligomers can have glass transition temperatures above 900.degree. F. while exhibiting desirable toughness for aerospace applications and ease of processing. A plurality (i.e. three or more) of generally linear aryl arms extend outw
5516876 Polyimide oligomers and blends May 14, 1996
Polyimide oligomers include (1) linear, monofunctional crosslinking oligomers prepared by condensing a monoanhydride end cap with a diamine that includes alternating ether and "sulfone" (--SO.sub.2 --, --S--, --CO--, --(CF.sub.3).sub.2 C--, or --(CH.sub.3).sub.2 C--) linkages connect
5512676 Extended amideimide hub for multidimensional oligomers April 30, 1996
The solvent-resistance and thermal stability of polyamideimides of the general formulae: ##STR1## is improved by capping the amideimides with a crosslinking functionality (Y) containing a residue selected from the group of: ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy,
5506060 Method for making multidimensional ether or ester oligomers April 9, 1996
Crosslinkable, polyaromatic, polyether or polyester oligomers can have glass transition temperatures above 900.degree. F. while exhibiting desirable toughness for aerospace applications and ease of processing. A plurality (i.e. three or more) of generally linear aryl arms extend outw
5463076 Method of making multidimensional oligomers October 31, 1995
Multidimensional oligomers of the present invention are surprisingly useful for advanced composites because each generally has a use temperature greatly in excess of its curing temperature. The oligomers have essentially no arms, and comprise crosslinking phenylimide end caps condens
5455115 Post-cure method for polyimide oligomers October 3, 1995
A preferred class of polyimide oligomers include (1) linear, difunctional crosslinking oligomers prepared by condensing an imidophenylamine end cap with a lower alkylene diamine or a polyaryldiamine such as 3,3'-phenoxyphenylsulfone diamine and with a dianhydride, particularly 4,4'-p
5446120 Polyethersulfone oligomers and blends August 29, 1995
Polysulfone and polyethersulfone oligomers made by the condensation of crosslinking end caps, monomers, diols, and dihalogen moieties exhibit improved solvent resistance which is necessary for their use in aerospace applications. Blends of the oligomers and corresponding polymers formed
5403666 Composites containing amideimide sized fibers April 4, 1995
The thermooxidative stability and thermomechanical properties of advanced composites which use high performance resin matrices such as polyimides and high strength carbon fibers may be improved by sizing the carbon fibers with uncapped or capped linear polyamideimides.The uncapped linear
5367083 Extended acid halide capping monomers November 22, 1994
The solvent-resistance and thermal stability of polyamideimides of the general formulae: ##STR1## is improved by capping the amideimides with a crosslinking functionality (Y) containing a residue selected from the group of: ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy,
5344894 Polyimide oligomers and blends September 6, 1994
Polyimide oligomers include (1) linear, monofunctional crosslinking oligomers prepared by condensing a monoanhydride end cap with a diamine that includes alternating ether and "sulfone" (--SO.sub.2 --, --S--, --CO--, --(CF.sub.3).sub.2 C--, or --(CH.sub.3).sub.2 C--) linkages connect
5286811 Blended polyimide oligomers and method of curing polyimides February 15, 1994
A preferred class of polyimide oligomers include (1) linear, difunctional crosslinking oligomers prepared by condensing an imidophenylamine end cap with a lower alkylene diamine or a polyaryldiamine such as 3,3'-phenoxyphenylsulfone diamine and with a dianhydride, particularly 4,4'-p
5268519 Lightly crosslinked etherimide oligomers December 7, 1993
Polyetherimide oligomers having crosslinking end cap moieties which provide improved solvent-resistance to cured composites are generally represented by the formula: ##STR1## wherein X=--O-- or --S--; ##STR2## n=1 or 2; ##STR3## E=allyl or methallyl; R=a trivalent C.s
5239046 Amideimide sizing for carbon fiber August 24, 1993
Sizing for carbon fibers with uncapped or capped linear polyamideimides.The uncapped linear polyamideimides useful as carbon fiber sizings generally contain repeating units having the general formula: ##STR1## Wherein R.sub.2 =a trivalent organic radical and generally benzenetriyl;R.sub.
5227461 Extended difunctional end-cap monomers July 13, 1993
High performance composites can be made from linear or multidimensional oligomer or blends that include unsaturated hydrocarbon crosslinking functionalities linked to a benzenetriyl or pyrimidine radical on the terminal ends of the polymeric backbones of the oligomers. The oligomers
5216117 Amideimide blends June 1, 1993
The solvent-resistance and thermal stability of polyamideimides of the general formulae: ##STR1## is improved by capping the amideimides with a crosslinking functionality (Y) containing a residue selected from the group of: ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy,
5210213 Dimensional, crosslinkable oligomers May 11, 1993
Multidimensional oligomers of the present invention are surprisingly useful for advanced composites because each generally has a use temperature greatly in excess of its curing temperature. The oligomers have essentially no arms, and comprise crosslinking phenylimide end caps condens
5198526 Heterocycle oligomers with multidimensional morphology March 30, 1993
Linear or multidimensional, crosslinking, solvent resistant oxazole, thiazole, or imidazole (i.e., heterocycle) oligomers and blends of the crosslinking oligomers and noncrosslinking comparable polymers are described. The oligomers are prepared by reacting tetraamines, diaminodiols,
5175304 Halo- or nitro-intermediates useful for synthesizing etherimides December 29, 1992
Polyetherimide oligomers having crosslinking end cap moieties which provide improved solvent-resistance to cured composites are generally represented by the formula: ##STR1## wherein X=--O-- or --S--; ##STR2## n=1 or 2; ##STR3## E=allyl or methallyl; R=a trivalent C.s
5175234 Lightly crosslinked polyimides December 29, 1992
Polyimide oligomers include (1) linear, monofunctional crosslinking oligomers prepared by condensing a monoanhydride end cap with a diamine that includes alternating ether and "Sulfone" (--SO.sub.2 --, --S--, --CO--, --(CF.sub.3).sub.2 C--, or --(CH.sub.3).sub.2 C--) linkages connect
5175233 Multidimensional ester or ether oligomers with pyrimidinyl end caps December 29, 1992
High performance composites can be made from linear or multidimensional oligomer or blends that include unsaturated hydrocarbon crosslinking functionalities linked to a pyrimidine radical on the terminal ends of the polymeric backbones of the oligomers. The oligomers are made by condensi
5159055 Coreactive oligomer blends October 27, 1992
The physical properties of high performance composites can be tailored by using coreactive oligomer blends to make the composites. The blends include a first oligomer having an unsaturated hydrocarbon end cap and a second oligomer having an amine, hydroxyl, sulfhydryl, or ##STR1##
5155206 Crosslinkable polyamideimide oligomers and a method of preparation October 13, 1992
The thermooxidative stability and thermomechanical properties of advanced composites which use high performance resin matrices such as polyimides and high strength carbon fibers may be improved by sizing the carbon fibers with uncapped or capped linear polyamideimides.The uncapped linear
5151487 Method of preparing a crosslinking oligomer September 29, 1992
Solvent resistance in polyimide, polyamide, and other resins can be improved by capping these resing with mono- or difunctional crosslinking end caps. Imidophenylamines of the general formula: ##STR1## R.sub.1 =lower alkyl, lower alkoxy, aryl, aryloxy, substituted alkyl, substitu
5144000 Method for forming crosslinking polyetherimide oligomers September 1, 1992
Polyetherimide oligomers having crosslinking end cap moieties which provide improved solvent-resistance to cured composites are generally represented by the formula: ##STR1## wherein X=--O-- or --S--; ##STR2## n=1 or 2; ##STR3## E=allyl or methallyl; R=a trivalent C.s
5126410 Heterocycle oligomers June 30, 1992
Linear or multidimensional, crosslinking, solvent resistant oxazole, thiazole, or imidazole (i.e., heterocycle) oligomers and blends of the crosslinking oligomers and noncrosslinking comparable polymers are described. The oligomers are prepared by reacting tetraamines, diaminodiols,
5120819 High performance heterocycles June 9, 1992
Linear or multidimensional, crosslinking, solvent resistant oxazole, thiazole, or imidazole (i.e., heterocycle) oligomers and blends of the crosslinking oligomers and noncrosslinking comparable polymers are described. The oligomers are prepared by reacting tetraamines, diaminodiols,
5116935 Polyimide oligomers and blends and method of curing May 26, 1992
A preferred class of polyimide oligomers include (1) linear, difunctional crosslinking oligomers prepared by condensing an imidophenylamine end cap with a lower alkylene diamine or a polyaryldiamine such as 3,3'-phenoxyphenylsulfone diamine and with a dianhydride, particularly 4,4'-p
1 2










 
 
  Recently Added Patents
System and method for providing program recommendations through multimedia searching based on established viewer preferences
Process of preparing functionalized polymers via enzymatic catalysis
Regulating a supply voltage provided to a load circuit
Systems and methods for selective text to speech synthesis
Determining phase-specific parameters of a physiological variable
Method of using N-thio compounds for oligonucleotide synthesis
Wafer-level chip scale package
  Randomly Featured Patents
Split band retainer for radially clamping a disk to a hub in a disk drive
Control system for positioning units exhibiting dead time in their response to activating signals
Thermal link and method for producing said link
Memory controller including a dual-mode memory interconnect
Spare tire retaining structure
Connection structure for semiconductor electrode terminals
Method of using color laser-printed graphics with multiple weight sheet stocks
Fractionating column control apparatus and methods
Crystalline silicate compositions and method of preparation
Three-dimensional vacuum envelope