| Patent Number |
Title Of Patent |
Date Issued |
| T993005 |
Preparation of aromatic fluoro compounds |
April 1, 1980 |
| The present invention relates to a process for the preparation of 4,4'-difluorobenzophenone. 4,4-difluorobenzophenone may be prepared by diazotization of 4,4'-diamino-diphenylmethane in anhydrous or concentrated aqueous hydrogen fluoride, decomposition of the diazonium fluoride thus |
| T988009 |
Vinyl chloride polymerization process |
November 6, 1979 |
| Vinyl chloride is polymerized by suspension or homogenized dispersion polymerization using a free radical-yielding initiator in which 0.02% by weight, based on the weight of vinyl chloride, of at least one .alpha.-olefin having from 6 to 20 carbon atoms is added to the vinyl chloride |
| T985001 |
Coloration process |
August 7, 1979 |
| water-impregnated textiles, especially of cellulose or wool, or mixtures of cellulose and wool with synthetic fibers and synthetic textiles, such as nylon and acrylics, particularly as assembled garments, are wet-transfer printed with a transferable printing design comprising a dyestuff |
| T984007 |
Jig-saw puzzles |
July 3, 1979 |
| a jig-saw puzzle comprises interfitting pieces (1, 2, 3, 4) which when fitted together side-by-side form a three-dimensional upper surface simulating for example hills and valleys. Each piece is formed of a molded open or closed cell thermoplastics foamed core 7 sandwiched between upper |
| T984006 |
Cooling tubular extrudates |
July 3, 1979 |
| an improved method of cooling an extruded tube of plastics material such as a substantially crystalline polymer of propylene, is disclosed in which the extruded tube is fed, in the direction of extrusion, in heat-transfer relationship with an adjacent cooling surface, such as an internal |
| T983008 |
Mixing particulate additives into thermoplastics polymers |
June 5, 1979 |
| a method for mixing particulate additives into a thermoplastic polymer which has been made by a process which produces the polymer in a molten state is disclosed including the improvement in combination, of the successive steps: (a) converting the polymer into a solid powder 95% by w |
| T980003 |
Polyolefin compositions containing calcium carbonate |
March 6, 1979 |
| polyolefin compositions filled with from 10 to 85% by weight of particulate (preferably coccolithic) calcium carbonate have less adversely affected impact strengths if the weight mean particle diameter of the calcium carbonate is from 1.40 to 1.90 .mu.. The calcium carbonate is preferabl |
| T971004 |
Foam plastics |
June 6, 1978 |
| a process for the manufacture of a foamed thermoplastic aromatic polyethersulphone comprising heating a solid thermoplastic composition comprising an aromatic polyethersulphone which is not in admixture with another type of thermoplastic polymer, said composition containing 0.25 to 2 |
| T970006 |
Manufacture of halophenols |
May 2, 1978 |
| halophenols of formula ##STR1## where X = halogen, are made by condensation of a compound ##STR2## where Z is OH or halogen with a phenol in the presence of anhydrous HF as a catalyst. The compound ##STR3## where X = F, may be made in situ by the reaction of ##STR4## |
| T969008 |
Production of oriented fibrillar products |
April 4, 1978 |
| the process for the production of an oriented fibrillar product from a polyarylene-oxadiazole which is heat-softenable without substantial degradation when in an air-free inert atmosphere comprises extruding contiguously disposed particles of the polymer, which particles are heat-sof |
| T969004 |
Light-absorbing filters |
April 4, 1978 |
| light-absorbing filters comprise a self-supporting polymeric film, such as an oriented polyethylene terephthalate film, containing or coated with a lacquer containing a compound which absorbs light in the wavelength band less than 0.4 .mu.m (i.e. UV light). The filters are particularly u |
| T966013 |
Transition metal compound |
January 3, 1978 |
| a process is provided in which a solid compound of a transition metal of Groups IVA to VIA is ground with at least one polymeric material containing sulphone groups and containing at least two repeat units of the formula:in which Ar is a bivalent aromatic radical and may vary from unit t |
| T966006 |
Aromatic polymers |
January 3, 1978 |
| aromatic polymers having phenylene groups linked by oxygen atoms, ketone groups and sulphone groups, that is etherketone/sulphone copolymers, containing 40 to 90 and preferably 50 to 80, mole % of the repeat units ##STR1## and correspondingly 10 to 60, particularly 20 to 50, mole % o |
| T966002 |
Plastics bags production |
January 3, 1978 |
| in the production of plastics bags, especially valved bags, from a web of plastics material by folding in the side margins of the web to form overlapping panels which are then longitudinally heat-sealed together for a major portion of one bag length, and then heat-sealing the web tra |
| T962008 |
Method of treating polymer latices |
September 6, 1977 |
| in accordance with the invention, a method of continuously treating an aqueous latex of a synthetic polymer contaminated with unreacted residual monomer used in the production of the polymer, comprises feeding the aqueous latex as a spray into a vessel defining a chamber so that all or a |
| T962007 |
Treatment of transition metal compound |
September 6, 1977 |
| according to the present invention (1) a titanium trihalide is ground in the presence of from 5 up to 75% molar, relative to the titanium trihalide, of (2) a Lewis Base compound which is an organo-phosphorus compound of the formulaand either (a) from 1 up to 50% molar, relative to the ti |
| T961009 |
Oriented polyolefin film treated with amine sulphates |
August 2, 1977 |
| antistatic polyolefin films, particularly oriented polyolefin, are produced by extruding a polyolefin to form a cast extrudate, and applying to at least one surface of the cast extrudate a solution or dispersion in a volatile vehicle an amine sulfate or mixture of amine sulfates having t |
| T961008 |
Oriented polyolefin film treated with quaternary ammonium salts |
August 2, 1977 |
| oriented polyolefin, especially polypropylene, films are produced having antistatic properties by applying to the cast extrudate an aqueous solution on at least one surface of the film of a quaternary ammonium salt of the general formula ##STR1## where X is a univalent anion or a |
| T961007 |
Production of electrically conductive paths on an insulating substrate |
August 2, 1977 |
| this process applies to printed circuits obtained by the imagewise deposition of nickel using a procedure such as that described in U.S. Pat. No. 3,853,589 followed by electroless copper plating onto the nickel pattern. We have found that by depositing the nickel before the copper, as |
| T959008 |
Method of treating polymer latices |
June 7, 1977 |
| a method of continuously treating an aqueous latex of a synthetic polymer which contains unreacted residual monomer from the polymerization reaction used for the production of the polymer, which method comprises feeding the aqueous latex as a spray into the top of a vertical column so th |
| T958013 |
Polymeric film |
May 3, 1977 |
| a film formed from a copolyme of ethylene and at least one mono-.alpha.-olefine has a combination of impact strength and stiffness which is such that the function ##EQU1## IS AT LEAST 750. The function is preferably at least 1000 and may be several thousands. The film may also ha |
| T957010 |
Separation of diluent from polymerization reaction mixture |
April 5, 1977 |
| a process for the separation of diluent from an ethylene polymerization reaction mixture wherein ethylene is copolymerized using as a catalyst an organo-metallic compound supported on an inorganic material. Subsequent to reaction, there is added to the reaction mixture a wetting agent an |
| T956004 |
Ethylene polymers |
March 1, 1977 |
| a copolymer of ethylene with at least one other mono-.alpha.-olefine is prepared and is characterized as having a density in the range 918 to 940 Kg/m.sup.3, an apparent viscosity (A) at 200.degree. C and a shear rate of 100 sec.sup.1 of 0.5 .times. 10.sup.3 to 3.0 .times. 10.sup.3 Nsm.s |
| T955003 |
Photographic films |
February 1, 1977 |
| Anti-static photographic films comprise a self-supporting synthetic plastics film base, such as a polyethylene terephthalate film, having superimposed on at least one side a gelatin-containing subbing layer and a radiation-sensitive layer superimposed on the gelatin layer, in which an |
| T100001 |
Suction device |
November 4, 1980 |
| A suction device suitable for gripping porous sacks filled with free-flowing particulate materials is disclosed. The device comprises a vacuum chamber with a porous base and a rigid wall extending continuously around the periphery of the base on the side remote from the chamber. In u |
| RE30955 |
Fibrous product |
June 1, 1982 |
| A resilient, thermally bonded, non-woven fibrous batt having a uniform compression modulus in one plane which is more than the compression modulus measured in a direction perpendicular to that plane, and a substantially uniform density across its thickness is obtained by preparing a |
| RE29724 |
Dyeing process |
August 8, 1978 |
| Dyeing nylon by applying sulphonated or unsulphonated dyestuffs containing cyclic anhydride groups, anhydride forming dicarboxylic acid groups or half-esters or half-amides thereof, as free acids or as salts with ammonia or volatile amines, and heating the fibre until dyestuff fixation t |
| RE29370 |
Thermoplastic film production |
August 23, 1977 |
| In a process for extruding thermoplastic film means are provided for maintaining substantially free from deposit a wire electrode which is used to deposit an electrostatic charge on to the upper surface of the film. In a preferred embodiment the wire electrode is continuously unwound fro |
| RE29039 |
Metal deposition process |
November 16, 1976 |
| Metal is deposited on a substrate containing neutral radicals, radical cations or neutral molecules (the latter being derived from a dication normally stable in aqueous media), by contacting the substrate with an electroless plating solution, optionally after sensitization with a salt |
| D250245 |
Mop head |
November 14, 1978 |
|
| 4743504 |
Polyester yarns produced by high speed melt-spinning processes |
May 10, 1988 |
| A spun polyester yarn containing ethylene terephthalate as the main or only recurring unit characterized by a percentage crystallinity (.beta..times.10.sup.2) of less than 20, a birefringence (.DELTA.n) of at least 50.times.10.sup.-3, a function A greater than 28 and a function B.gto |
| 4683089 |
Cyclopropane carboxylic acid derivatives |
July 28, 1987 |
| A process for separating the individual optically active isomers of cis- or trans-forms of cyclopropane carboxylic acids of formula: ##STR1## wherein R.sup.1 is halo, alkyl, alkenyl, haloalkyl, haloalkenyl or haloalkynyl, and R.sup.2 is hydrogen or cyano, from a mixture of cis-is |
| 4665222 |
Production of ethylene glycol from synthesis gas |
May 12, 1987 |
| A process for the production of ethylene glycol, methanol, ethanol and/or esters thereof from mixtures of carbon monoxide and hydrogen (synthesis gas) which comprises contacting a mixture of carbon monoxide and hydrogen with a catalyst at elevated pressure in a liquid medium, said cataly |
| 4604465 |
Haloguanidine intermediates |
August 5, 1986 |
| Compounds useful for inhibiting gastric acid secretion and for the treatment of peptic ulcers caused or exacerbated by gastric acidity having the following formula (I): ##STR1## in which R.sup.1 and R.sup.2, are H, C.sub.1-10 alkyl, C.sub.3-8 cycloalkyl or cycloalkylalkyl in whic |
| 4576815 |
Process for the extraction of metal values and novel metal extractants |
March 18, 1986 |
| Metal values are extracted from aqueous solutions of metal salts containing halide or pseudo halide ions by pyrimidine, pyrazine or pyridazine derivatives bearing the substituent --(C.dbd.O.X).sub.n where X is the group --OR.sub.1 or --NR.sub.2 R.sub.3 and n is 1, 2 or 3. R.sub.1 is a |
| 4553017 |
Energy beam focusing apparatus and method |
November 12, 1985 |
| Apparatus and method for increasing the power density of an energy beam (e.g. a laser beam) by focusing an incident beam to an anisometric configuration and thereafter focusing the anisometric beam to a modified, preferably isometric, configuration. A serrulate reflective surface fac |
| 4550206 |
Method of preparing tetrahalobenzene compounds, chemical intermediates used therein and certain |
October 29, 1985 |
| Tetrahalobenzene compounds of the formula (I): ##STR1## in which X is independently chloro or, preferably, fluoro and Y is hydrogen or --N.sup.+ R.sub.3 A.sup.- in which each R is independently C.sub.1-4 alkyl and A is a radical capable of forming an anion A.sup.-, are prepared b |
| 4543287 |
Fibrous material comprised of vermiculte coated fibers |
September 24, 1985 |
| A fibrous composite material of essentially two-dimensional form in the form of individual fibres, sheets or layers comprising combustible fibres and lamellae of a layer mineral of size below 50 microns, a method for the manufacture of the fibrous composite materials by applying lamellae |
| 4537980 |
Acetals |
August 27, 1985 |
| A new method for the preparation of acetals of long chain fatty aliphatic aldehydes and polyols containing four or more hydroxyl groups which produces the acetals in a relatively pure form by reaction in a mutual solvent, preferably a C.sub.1 to C.sub.4 fatty carboxylic acid. The `cl |
| 4536555 |
Preparation of aromatic polymers from cyclohexa-3,5-diene polymers |
August 20, 1985 |
| A process for the preparation of polymeric compositions which comprise novel polymers and copolymers of certain 1,2-disubstituted-cyclohexadienes, aromatization of such polymers in the form of inter alia fibres, and novel aromatic polymers. |
| 4532176 |
Fibrous material comprised of vermiculite coated fibers |
July 30, 1985 |
| A fibrous composite material in the form of individual fibres, sheets, layers or lightweight blocks comprising non-combustible fibres and lamellae of a layer mineral, a method for the manufacture of the fibrous composite materials by applying lamellae of a layer mineral to the fibres |
| 4526326 |
Traverse roll for filament yarn cross winding apparatus |
July 2, 1985 |
| The invention concerns an improved yarn package, process and apparatus. The improved package has particular utility in automated processes for making melt spun yarn. Broadly, the invention comprises (a) a cross wound package of melt spun flat filament yarn that is characterized by the ya |
| 4525330 |
Process for the extraction of metal values and novel metal extractants |
June 25, 1985 |
| Metal values are extracted from aqueous solutions of metal salts containing halide or pseudo halide ions by pyridine derivatives containing the substituent --(COX).sub.A where X is the group --OR.sub.1 or --NR.sub.2 R.sub.3 and n is 1, 2 or 3. R.sub.1 is a hydrocarbyl group containing fr |
| 4524198 |
Poly(1,2-disubstituted cyclohexa-3,5-dienes |
June 18, 1985 |
| A process for the preparation of polymeric compositions which comprise novel polymers and copolymers of certain 1,2-disubstituted-cyclohexadienes, aromatization of such polymers in the form of inter alia fibres, and novel aromatic polymers. |
| 4523427 |
Filament yarn |
June 18, 1985 |
| A yarn of a synthetic, fibre-forming, polymeric material comprising a plurality of filaments having a substantially rectangular cross-section and having a birefringence assymetry across the width of the filaments, each of the filaments being twisted about the longitudinal axis of the |
| 4518435 |
Dispersing agent for solids in polar organic liquids |
May 21, 1985 |
| A dispersing agent comprising the salt of a tertiary amine containing at least one poly(lower alkyleneoxy) chain and an aromatic acid having at least two benzene rings and a dispersion of an organic pigment, an organic dyestuff or carbon black in a polar organic solvent containing said |
| 4487759 |
Tertiary amine stabilized micro-encapsulated compositions containing behavior modifying compound |
December 11, 1984 |
| Compositions containing insect behavior modifying compounds containing carbon-to-carbon unsaturation, e.g. pheromones, are stabilized by the addition of a tertiary phenylene diamine of formula: ##STR1## wherein R.sup.1 represents an aromatic residue, R.sup.2 represents H or an al |
| 4482645 |
Method of making an iron oxidechromium oxide catalyst |
November 13, 1984 |
| The Abstract of the Invention is a method of making a solution of the nitrates of iron and chromium from a spent catalyst containing oxides of iron and chromium, which method comprises:(a) dissolving the catalyst in sulphuric acid;(b) reacting the resulting sulphates solution with a source o |
| 4476296 |
Preparation of aromatic polymers from cyclohexa-3,5-diene polymers |
October 9, 1984 |
| A process for the preparation of polymeric compositions which comprise novel polymers and copolymers of certain 1,2-disubstituted-cyclohexadienes, aromatization of such polymers in the form of inter alia fibers, and novel aromatic polymers. |
| 4476181 |
Delaminated vermiculite coated aluminum |
October 9, 1984 |
| An aluminum substrate comprising a layer of lamellae of a layer mineral, preferably vermiculite, in which substantially all of the lamellae are of size below 50 microns, production of the coating by applying a suspension of the lamellae to the substrate and removing the liquid from the |
