| Patent Number |
Title Of Patent |
Date Issued |
| 4248096 |
Machine for fatigue testing of materials |
February 3, 1981 |
| A machine for cyclically applying a force to material specimens for testing the fatigue properties thereof. The specimens are positioned between two members, at least one of which moves angularly in a wobble type of action in a cyclic operation. Enclosure members enclose any suitable des |
| 4246358 |
Fire-resistant material and process |
January 20, 1981 |
| Fire-resistant organic materials including foams, are made by heating at temperatures sufficient to cause polymerization and elimination of nitrogen and sulfur precursor aromatic polymers having sulfonamide linkages and aromatic compounds capable of forming said polymers, e.g. sulfam |
| 4230551 |
Electrosynthesis process for making amine/aldehyde porous structures and powders |
October 28, 1980 |
| The invention is a process for making porous amine/aldehyde structures or powders comprising solid approximately-spherical cross-linked particles of less than 10 microns, said process comprising electrolyzing aqueous solutions of urea-formaldehyde prepolymer, melamine-formaldehyde pr |
| 4197170 |
Radiation sources and process |
April 8, 1980 |
| The invention relates to radiation sources comprising a substrate having an electrically-conductive non-radioactive metal surface, a layer of a metal radioactive isotope of the Scandium group, which in addition to scandium, yttrium, lanthanum and actinium, includes all the lanthanide and |
| 4143233 |
Solar energy collector |
March 6, 1979 |
| A solar energy collector is described which consists of either a photoelectric cell or a heat-absorbing material mounted within a hollow concentrator. The photoelectric cell has the form of a rod of a monocrystalline element or compound with a generally cylindrical junction spaced at |
| 4137364 |
Transparent laminate and adhesive film |
January 30, 1979 |
| The invention relates to transparent or optically clear laminates and adhesive films used to make these laminates having a temperature utility range far greater than those previously developed and which are especially useful for windshields of high speed aircraft which need such a broad |
| 4134937 |
Polyester resin composition |
January 16, 1979 |
| A polyester resin composition having improved neutron shielding properties can be made by mixing a condensation product of maleic anhydride, phthalic anhydride and polyethylene glycol dissolved in styrene, with at least a sufficient amount of pelleted polyethylene to substantially increa |
| 4115499 |
Large void-free polyethylene castings |
September 19, 1978 |
| Large void-free castings of polyethylene can be made by blending high density polyethylene pellets with low density polyethylene powder, followed by heating to above the melting point of the low density polyethylene and below, or only slightly above, the melting point of the high den |
| 4106909 |
Chemical analysis with coated, light waveguide under humidity control |
August 15, 1978 |
| A coated waveguide holder-humidifier to supply moisture in the case of moisture-sensitive reactions in order that quantitative results might be obtained with a gradient light analytical detector which will quantitatively measure atmospheric contaminants by comparing changes in light |
| 4093684 |
Solid solderable polyurethane data signal recording medium |
June 6, 1978 |
| In a process for data signal recording in which a recording medium is impinged upon by an intensity-modulated, focused laser beam to form a hole in at least one layer of the recording medium, the improvement wherein at least one layer of the recording medium comprises a polymer capable o |
| 4076620 |
Process for the disposal of sewage |
February 28, 1978 |
| The process embodying the discovery of the effects of large lime dosages on sewage sludge character consists of: adding lime to raw, sanitary sewage in amounts to exceed a 1:1 weight ratio of lime to COD, or at least 500 ppm lime; immediately treating with carbon dioxide to reduce the pH |
| 4075265 |
Process for making instant shaped foams |
February 21, 1978 |
| In a process for rapidly producing a substantially uniform, elongated, cellular thermoplastic article comprising rapidly discharging from a vessel a pressurized gel of a solid thermoplastic amorphous polymer and a gaseous solvent in an amount in the range of from about 25-100% by weight |
| 4053560 |
Flame retardant |
October 11, 1977 |
| The new product, a Cl.sub.3 P=N-N=PCl.sub.3 + NH.sub.3 reaction product, has been found to be an excellent flame-retardant for material made from cellulose such as cotton, paper and sponge; polyester, wool and blends thereof. Conveniently the material can be treated with an aqueous solut |
| 4050895 |
Optical analytical device, waveguide and method |
September 27, 1977 |
| A device for detecting a first material comprising (a) a waveguide having on a peripheral surface of the waveguide a second material which on contacting the first material selectively combines with the first material to measurably change the light transmitting capabilities of the wavegui |
| 4040780 |
Flame retardant |
August 9, 1977 |
| Flame retardant protection has been demonstrated on cotton and on polyester-cotton materials by the product obtained from the reaction of cyanamide and PCl.sub.5 followed by reaction with anhydrous ammonia in excess of that required to react with the chlorine on the cyanamide and PCl |
| 4040749 |
Organic vapor detection with liquid crystals |
August 9, 1977 |
| A device for detecting organic vapors comprising (a) an elongated waveguide having on the surface thereof a sufficient amount of liquid crystal material sensitive to organic vapor to measurably change the light transmitting capability of said waveguide upon contacting said waveguide |
| 4040691 |
Waveguide holder-humidifier |
August 9, 1977 |
| This invention is a coated waveguide holder-humdifier which is used to supply moisture in the case of moisture sensitive reactions in order that quantitative results might be obtained with a gradient light analytical detector which will quantitatively measure atmospheric contaminants by |
| 4020224 |
Flame retardant method |
April 26, 1977 |
| Mixtures comprising compounds of the formula ##STR1## wherein A is either NH.sub.2 or N=P(NH.sub.2).sub.3, provided at least one A is N=P(NH.sub.2).sub.3, have been found to be good flame-retardants for material made from cotton or polyester-cotton having about 30 to 70% by weigh |
| 4003770 |
Plasma spraying process for preparing polycrystalline solar cells |
January 18, 1977 |
| Polycrystalline silicon films useful in preparing solar cells primarily for terrestrial application are prepared by a plasma spraying process. A doped silicon powder is injected into a high temperature ionized gas (plasma) to become molten and to be sprayed onto a low-cost substrate. Upo |
| 4000191 |
Flame retardant product of the reaction of ammonia with phosphorous pentachloride-cyanamide inte |
December 28, 1976 |
| Flame retardant protection has been demonstrated on cotton and on polyester-cotton materials by the product obtained from the reaction of cyanamide and PCl.sub.5 followed by reaction with anhydrous ammonia in excess of that required to react with the chlorine on the cyanamide and PCl |
| 3999857 |
Refractive index detector |
December 28, 1976 |
| A refractive index detector is described comprising a waveguide, means for contacting said waveguide with a fluid, a light source and means to transmit light into said waveguide, means for detecting light exiting from said waveguide as an indication of the refractive index of said fluid |
| 3999856 |
Diffractometric refractometer |
December 28, 1976 |
| A device useful as a detector for fluid (liquid or gas) chromatograph effluent comprising a light source, a cell divided into sample and reference fluid compartments separated by an opaque diaphragm sufficiently thin to form a Fraunhofer diffraction pattern, means to introduce and re |
| 3989702 |
Flame retardant |
November 2, 1976 |
| Mixtures comprising compounds of the formula ##EQU1## wherein A is either NH.sub.2 or N=P(NH.sub.2).sub.3, provided at least one A is N=P(NH.sub.2).sub.3, have been found to be good flame-retardants for material made from cotton or polyester-cotton having about 30 to 70% by weigh |
| 3979357 |
Large void-free polyethylene |
September 7, 1976 |
| Large void-free castings of polyethylene can be made by blending high density polyethylene pellets with low density polyethylene powder, followed by heating to above the melting point of the low density polyethylene and below, or only slightly above, the melting point of the high den |
| 3959197 |
Use of solvent mixtures in making foamable compositions |
May 25, 1976 |
| A process for rapidly producing a substantially uniform, solid, cellular thermoplastic article comprising the steps of: (a) charging a vessel with (1) a solid thermoplastic polymer, (2) a solvent mixture the amount of which in the range of from about 25-50% by weight of said polymer boil |
| 3955987 |
Intumescent compositions and substrates coated therewith |
May 11, 1976 |
| Intumescent compositions are described which when deposited on a substrate protect the substrate against heat and fire damage for an appreciable time, and these compositions are readily removed from the substrate by water washing or water scrubbing both before and after intumescing. |
| 3955029 |
Process for making flame retardant material |
May 4, 1976 |
| The new product, a Cl.sub.3 P=N--N=PCl.sub.3 + NH.sub.3 reaction product, has been found to be an excellent flameretardant for material made from cellulose such as cotton, paper and sponge; polyester, wool and blends thereof. Conveniently the material can be treated with an aqueous solut |
| 3954662 |
Aqueous foam compositions to suppress coal dust |
May 4, 1976 |
| Aqueous foamable compositions can be used to suppress coal dust, especially respirable coal dust, i.e., coal dust having particle size less than about 10 microns. These compositions are composed principally of water with a minor amount of an interpolymer of:A. a polymerizable vinyl ester |
