baber/WOPTO huggingface dataset:
Patent IT-226372-Z2 (IT)
Title: Sistema di supporto e fissaggio per un avvolgitore a fune continua per tapparelle
Inventor: PIACENTINI GIUSEPPE
IPC: E06B/
Filed: 1992-03-19
Granted: 1997-06-16
Abstract: La presente innovazione propone un sistema di supporto e fissaggio per un avvolgitore a fune continua per tapparelle che prevede l'utilizzazione di un perno o di un elemento di supporto fissato alla parete inferiormente alla struttura dell'avvolgitore, la quale nella parte inferiore è sagomata in modo da definire un incavo che appoggia su questo perno.Nella parte superiore la struttura dell'avvolgitore è trattenuta in posizione da un elemento in lamiera sagomata il quale presenta una scanalatura che impegna detta struttura dell'avvolgitore e, dalla parte opposta, è fissato alla parete.Con questo sistema si riduce, eliminandolo quasi totalmente, l'ingombro del supporto, consentendo di utilizzare cassonetti aventi sostanzialmente le stesse dimensioni del serramento.
Patent CH-511890-A (CH)
Title: (A) 7-Aminocephalosporanic acid derivs. R1 = heterocyclyl with min. 2 hetero-atoms bound to the S-atom of the mercaptoacetyl group by a C-atom directly between
Inventor: BICKEL HANS DR
IPC: A23K10/00
Filed: 1968-01-02
Abstract: (A) 7-Aminocephalosporanic acid derivs. R1 = heterocyclyl with min. 2 hetero-atoms bound to the S-atom of the mercaptoacetyl group by a C-atom directly between 2 hetero atoms R2 = a free- or carboxylic acid-esterified hydroxy group in which ester-O-atoms are opt. replaced by S-atoms; an opt, N-substd. carbamoyloxy group in which the O-atoms are opt. replaced by S; or a quaternary amino group. (B) Salts of (I) including internal salts. (I) have antibacterial activity against Gram-pos. and esp. Gram-neg. bacteria such as penicillin-resistant S. aureus, F. coli, K. pneumoniae, S. Typhosa and B. Proteus. They may be used in the treatment of infections caused by these microorganisms or as feedstuff additives, in the preservation of food or as disinfecting agents. 7-(1-methyl-imidazolyl-2-mercapto-acetylamino)caphalosporanic acid.
Patent CR-6965-A (CR)
Title: Compresor lineal
Inventor: DAVID NEVILLE SEAGAR
IPC: F04B39/00
Filed: 2003-04-25
Abstract: UN COMPRESOR LINEAL QUE COMPRENDE UNA PARTE DE CILINDRO QUE INCLUYE UNA PERFORACION TALADRADA DE CILINDRO. UN PISTON DISPUESTO EN, Y ES DESLIZABLE HACIA EL INTERIOR, LA PERFORACION TALADRADA. UN RESORTE PRINCIPAL CONECTA LA PARTE DE CILINDRO DIRECTA O INDIRECTAMENTE AL PISTON. UNA BARRA CONECTORA CONECTA ENTRE EL RESORTE PRINCIPAL Y EL PISTON. UN ESTATOR TIENE UN BRECHA DE AIRE, Y LA BARRA CONECTORA PASA A TRAVES DE LA BRECHA DE ARIRE. AL MENOS UN POLO DE ARMADURA ESTA LOCALIZADO A LO LARGO DE LA BARRA CONECTORA.
Patent CR-8903-A (CR)
Title: Metodo para la proteccion de plantas utiles o material de propagacion de plantas
Inventor: HARALD WALTER
IPC: A01N43/56
Filed: 2007-02-05
Abstract: Un metodo para controlar las enfermedades fitopatogenicas en plantas utiles o el material de propagacion de las mismas, que comprende la aplicacion a dicho material de propagacion de plantas de una cantidad efectiva de un compuesto de la formula I en la cual R1 es trifluormetilo o difluormetilo y R2 es hidrogeno o metilo, o un tautomero de dicho compuesto, es particularmente eficaz para controlar o prevenir las enfermedades fungicas de las plantas de cultuvo.
Patent CR-9882-A (CR)
Title: Milnacipran para el tratamiento a largo plazo del sindrome de fibromialgia
Inventor: RAO SRINIVAS G
IPC: A61K31/165
Filed: 2008-04-11
Abstract: Ningun componente, aunque tenga beneficios para el tratamiento a corto plazo de la fibromialgia y sus sintomas, ha proporcionado ningun efecto duradero que proporcione efectivamente un tratamiento a largo plazo para la fibromialgia y sus sintomas. Sorpresivamente de conformidad a los metodos de la presente invencion, la administracion de un inhibidor de absorcion dual de serotina y norepinefrina proporciona a un paciente que sufre del sindrome de fibromialgia un tratamiento efectivo y a largo plazo de la fibromialgia y sus sintomas.
Patent CR-9941-A (CR)
Title: Formacion farmaceutica de absorcion oral y su metodo de administracion
Inventor: MUHAMMAD WASSEM TAHIR QAZI
IPC: A61M11/00
Filed: 2008-04-28
Abstract: Una formulacion farmaceutica para absorber por la mucosa oral que incluye una cantidad efectiva de (a) un agente farmaceutico en forma de micela combinada, (b) al menos un compuesto formador de micela seleccionado del grupo de sulfato alquilo de metal alcalino y monooleato de sorbitan polioxipropileno, (c) un compolimero bloque de polioxietileno y polioxipropileno, (d) al menos un compuesto formador de micela adicional y (e) un disolvente adecuado. La invencion proporciona ademas un dispensador de dosis graduado (aerosol y no aerosol) que contienene la presente formulacion y un metodo de adminsitracion de insulina con un dispensador de dosis graduado que incluye administrar dosis multiples de una formulacion que contiene insulina antes y despues de cada comida.
Patent DK-4191-A (DK)
Inventor: FRANDSEN ERIK
IPC: C08K3/16
Filed: 1991-01-10
Abstract: A polymer composition for producing containers, or intermediate forms or parts thereof, for the purpose of improving their oxygen barrier properties. According to the invention, the composition comprises, as an active component, a metal compound which has the ability to scavenge oxygen, and it consists of a metal ion, which possesses complex-forming properties, and a polymer to which the metal ion is bonded as a complex. In a process for producing the polymer composition, a polymer is treated, under reflux conditions, with a metal compound which is dissolved or suspended in a liquid solvent composition, in order to obtain the active component having an ability to scavenge oxygen. The polymer composition, mixed with an additional polymer can be cast into containers, or intermediate forms or parts thereof.
Patent GB-984884-A (GB)
Title: Polyesters of aromatic dihydric alcohols
IPC: C08G63/181
Filed: 1962-01-01
Abstract: A film- and fibre-forming polyester is made by transesterifying a dialkyl ester of an aromatic dicarboxylic acid with 4,41-dimethylol diphenyl oxide and polycondensing the resulting product.  Specified acids are terephthalic, isophthalic, 1 : 2-diphenylethane-4 : 41-dicarboxylic and 4 : 41-diphenic acid.  In the example, dimethyl terephthalate is reacted with 4 : 41-dimethylol diphenyl oxide.
Patent GB-1435441-A (GB)
Title: Swim fins
IPC: A63B31/11
Filed: 1974-01-02
Abstract: 1435441 Moulding swim fins AMF MARES SUB SpA 2 Jan 1974 [9 Jan 1973] 00050/74 Heading B5A [Also in Division A6] A swim fin comprises two parts, e.g. a scoop 1 made from a relatively stiff material and a shoe 2 made from a relatively soft material, one of the two parts being moulded directly on to the other in such a way that it is both adhesively secured and mechanically keyed to the other part. As shown, the scoop 1 is made from an ethylene-vinylacetate copolymer and the shoe 2 from a soft, rubber-like material, e.g. a mix of an ethylene-vinylacetate copolymer and thermoplastic rubber. The scoop 1 has side webs 5 with side ways and vertical holes 11, 12. The rear of the scoop 1 has a V-shape 6 with integral studs 8 along it, and a single recess 7. The shoe 2 is injection moulded directly on to the scoop 1 so that its material fills the holes 11, 12 and the recess 7, surrounds the studs 8, and also bonds to the shoe.
Patent IS-5179-A (IS)
Inventor: KOEPPEN KARL HEINZ
IPC: H04R9/06
Filed: 1999-09-14
Abstract: A broadband loudspeaker radiating as an approximate point source, whose movable components are fastened to a dome-shaped loudspeaker front, wherein the loudspeaker front flares rearwardly to an enclosure shell disposed coaxially around the central axis of the enclosure and a diagonally disposed deflection plane, which can be formed as the back wall, faces the back side of the diaphragm. The inside cross section of the enclosure shell is preferably a polygon with an odd number of sides, as is the dome-shaped loudspeaker front and the loudspeaker diaphragm, which is preferably cup-shaped and which can be fastened directly to the loudspeaker front.
Patent AT-A53993-A (AT)
Inventor: SCHUH GERHARD
IPC: H01H83/22
Filed: 1993-03-18
Abstract: A safety switch has an LS (line protection) and an FI (fault current protection) section. The switch lock of the LS section has a catch support lockable by a catch which, for tripping (in the event of an overcurrent), works with a bimetal release and a magnetic release. The switch lock of the FI section has a catch (31) and a catch support (32) associated with a permanent-magnet release with a release push-rod (51). The switch bridge of the LS section and that (36) of the FI section can pivot about a common axis (60) in the safety switch housing. The switch bridge of the LS section is coupled to the switch bridge (36) of the FI section for combined movement by a pin (7) which is inserted into a switch bridge support (35) for the switch bridge (36) of the FI section. In the catch support of the switch lock of the LS section there is a pin (69) associated with the catch (31) of the FI section in such a way that it abuts on the pin (69) when pivoted in the event of a fault current. Thus the catch support of the LS section pivots to release the switch lock of the LS section.
Patent CH-495949-A (CH)
Title: Basic ethers analgesic anti-tussive anti-convulsive
Inventor: HOELLINGER RODERICH DR
IPC: C07C43/02
Filed: 1968-01-16
Abstract: (A) Cpds. (I) R' = alkyl R" = H or CH3 Y = alkyl or both Y's with the N form a heterocycle R = alkyl X = halogen or H (B) Acid addn. and quat ammonium salts of (I). Pharmacologically active cpds. with analgesic, antitussive, anti-convulsive, and anti-Parkinson activity, and of low toxicity. Partic. useful in treatment of everyday pains not requiring medical supervision.
Patent CR-11024-A (CR)
Title: Adjuvantes y metodos para utilizarlos
Inventor: BASEETH SHIREEN
IPC: C05G3/70
Filed: 2009-09-11
Abstract: Se describen en la presente composiciones que comprenden un acidificante mezclado con un emulsionante y un co-agente tensioactivo que forman microemulsiones estables en agua. Tambien se describen metodos para dispersar un compuesto en una solucion acuosa utilizando las composiciones de la presente invencion.
Patent CU-34966-A (CU)
Title: Derivados pironoquilinona
Inventor: COX DAVID
IPC: C07D215/04
Filed: 1978-08-27
Abstract: 1. Un compuesto de la fórmula I En la cual un par adyacente de R5, R6, R7 y R8 forma una cadena COPCH=CE-O- y el resto de R5 , R6, R7 y R8 que pueden ser iguales o diferentes, cada uno representa hidrógeno, hidroxilo, alquilo, halógeno, alquelino, alcoxilo, o -NR1 R2 en el cual R1 R2 pueden ser iguales o diferentes, son cada uno hidrógeno o alquilo. Rg es hidrógeno, alquilo, alquenilo o fenil alquilo y E es -COOH, un grupo 5 tetrazolilo o un grupo (N-tetrazol-5-ilo) carboxamido, y los derivados del mismo farmaceúticamente aceptables. 2. Un compuesto de acuerdo con la Reivindicación 1, en el cual cada uno de R5, R6, R7 y R8, cuando ellos contienen carbono, contiene hasta 8 átomos de carbono. 3. Un compuesto de acuerdo con la Reivindicación 2, en el cual cada uno de R5, R6, R7 y R8, cuando ellos contienen carbono, contiene hasta 4 Átomos de carbono. 4. Un compuesto de acuerdo con una cualquiera de las reivindicaciones 1 a 3 en el cual la cadena -COCH=CE-O está enlazada en las posiciones R6 y R7 estando la parte 0 de la cadena en la posición R7. 5. Un compuesto de acuerdo con una cualquiera de las reivindicaciones 1 a 4 en el cual R5, R6, R7 y R8 son seleccionados de hidrógeno, metoxilo, propilo, alilo, metilo, etilo, cloro, bromo e hidroxilo. 6. Un compuesto de acuerdo con una cualquiera de las reivindicaciones de 1 a 5, en el cual E es un grupo -COOH. 7. Acido 4,6- dioxo 10 propil-4H, 6H-pirano (3,2 g) quinolina, 2-8- dicarboxílico. 8. Acido 4,6 dioxo 1 etil- 10 propil 4H, 6H-pirano (3,2-g) quinolina-2,8 dicarboxílico. 9. Acido 5 etil- 4,8 dioxo- 10 propil 4H, 8H- pirano (2,3-h) quinolina 2,6 dicarboxílico. 10. Acido 4,10 Dioxo 4H, 10H- pirano (2,3-f) quinolina 2,8 dicarboxílico. 11. Acido 10 bromo 4,6 dioxido- 4H, 6,H pirano (3,2 g) quinolina 2,8, dicarboxílico. 12. Acido 5 hidroxi 4,6 dioxido 10 propil 4H, 6H pirano (3,2-g) quinolina, 2-8 dicarboxílico. 13. Acido 4,9 dioxo- 4H, 9H- pirano (2,3-g) quinolina 2,7 dicarboxílico. 14. 4,10 dioxo -4H, 10H- pirano (2,3-f) quinolina -2,8 di (N-tetrazol-5-il) carboxamida. 15. 10 bromo 4,6 dioxo-2,8-di (tetrazol 5 -il)-4H, 6H-pirano (3,2 g) quinolina. 16. El éster etílico de un compuesto de acuerdo con una cualquiera de las reivindicaciones precedentes. 17. La sal sódica de un compuesto de acuerdo con una cualquiera de las reivindicaciones precedentes.
Patent DK-14986-A (DK)
Inventor: HAGENAH GERHARD
IPC: E01C5/06
Filed: 1986-01-13
Abstract: The earth covering element 10 comprises at least three basic setts 13, 24, 25, connected to one another to form a unit and delineated in relation to one another by dummy joints 14, 17. On the peripheral face of each element projections 37 and indentations 38 are formed along a theoretical base line. The basic setts are assembled into a basic T-shape by means of two basic setts arranged side by side with one another, which form a cross-piece 12, and a leg 13 comprising a third basic sett that is arranged approximately centrally on one side of the said cross piece and transversely in relation thereto. If these ground covering elements are used as a laying unit for road covering, a strong and above all uniform bonding action is achieved, which ensures good transmission of the forces originating from traffic loads. Furthermore there is only a slight risk of the ground covering elements rocking, that is to say disengaging from the bond, as a result of which damage of the ground covering element is as far as possible avoided. <IMAGE>
Patent DK-60988-A (DK)
Inventor: ANDERIE WOLF
IPC: A43B13/18
Filed: 1988-02-05
Abstract: 1. A shoe bottom, in particular for sports shoes, which in the shank (5) has weak locations (6, 7) for reducing the torsional stiffness about an axis extending substantially in the longitudinal direction of the shoe, in order to permit twisting, which is adapted to the natural movement of the foot, of the front sole portion (3) relative to the rear sole portion (4), about said axis, characterised in that the shank (5) of the shoe bottom (1, 2) is stiffened against bending about an axis extending transversely with respect to the longitudinal direction of the shoe by a striplike or rod-like stiffening element (9) which is directed in the longitudinal direction of the shoe.
Patent GB-156201-A (GB)
Title: Improvements in ironing or pressing machines
IPC: D06F69/04
Filed: 1921-01-03
Abstract: 156,201. Patrick & Co., F. A., (Assignees of Hoffman, L.). April 15, 1916, [Convention date]. Ironing-machines with hand-operated flat-irons.-The iron 47 is suspended from a carriage movable horizontally in all directions in a frame 18 supported by springs 21 and depressed against their action by a pedal 28. The table 12 is provided with rollers running on tracks 11 so that it can be moved laterally to position the work beneath the iron and a screw 16 serves to hold the table stationary when desired. The frame 18 includes opposed channelled members 29 having parallel rails 30, 31 between which run the wheels 33 of carriages 35 connected by channel bars 34 also furnished with rails 36 to guide the wheels 38 of a carriage 39. The iron is adjustably suspended from the latter by means of a screwed spindle 41 having a collar 42 and thumb-screw 44 to support the rod 43 connected by a ball-hearing 45 with the iron.
Patent GB-1048687-A (GB)
Title: Framework structures for buildings
Inventor: KIRBY DAVID CHARLES
IPC: E04B1/348
Filed: 1964-01-02
Abstract: 1,048,687. Room units. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 21, 1964 [Jan. 2, 1964], No. 203/64. Heading E1A. A prefabricated synthetic thermoplastic polymeric room unit, as shown a bathroom unit 1, is formed in two parts, and surrounded by a framework, one side at least of which is formed as a stressed skin structure. The walls and ceiling of the bathroom unit are coated with a layer of glass fibre reinforced polyester resin, and the base is stuck to a base sheet 7 of plywood forming part of the framework, which sheet may be apertured as at 13 for ventilation, heating, &c. The stressed skin construction may be employed on one, two or four walls, and on the base also, if required. As shown, there is a latticework of timber battens 8, covered with plywood sheets 10. Alternatively the facing sheets, which may also be of aluminium or a thermoplastic material, may cover a paper or like honeycomb core, or a foamed polymeric core.
Patent GB-1157308-A (GB)
Title: Improvements in or relating to an Inflatable Lifejacket having a Detachable Parachute Harness
Inventor: HAWKINS JAMES MITCHELL
IPC: B63C9/125
Filed: 1967-01-03
Abstract: 1,157,308. Inflatable lifesaving equipment. FRANKENSTEIN GROUP Ltd. 19 Dec., 1967 [3 Jan., 1967], No. 252/67. Heading B7U. [Also in Divisions A3 and E2] A " split-stole " type of lifejacket having a structure such as a waistcoat or harness 10 for attachment to the wearer is provided with a parachute harness 16, 17, 20 detachably mounted on the inside of the attachment structure 10 by press-studded flaps 12, the two free ends of the parachute harness webs 20 being adjustably secured one to each part 23 or 24 of a fastener for the attachment structure 10. This arrangement enables one fastener 23, 24 to fasten both the waistcoat and the parachute harness on the wearer. The fastener is in the form of two metal plates 23, 24 secured by fabric loops 35 sewn to the waistcoat and passing through slots 26 in the plates 23, 24. The edge of the plate 24 is provided with spaced beads 29 which engage in key-hole slots (not shown) in spaced lugs on the opposing edge of the plate 23. A spring- loaded catch 31 prevents the beads from leaving the key-hole slots. To enable adjustment of the webs 20, each passes around a bar 33 located in a slot 32 in its plate 23 or 24 before passing to the outside of the jacket through a slot 34. An oxygen regulator may be detachably mounted on the plates by means of key-hole slots 38. The ends of the harness webs 16, 17 pass through slots 26, 27 to a buckle 18.
Patent GB-572021-A (GB)
Title: Improvements in and relating to sockets for electric plugs
Filed: 1944-01-11
Abstract: 572,021. Two-part couplings. BORMAN & SMITH, Ltd., ATRERTON, T., and LUND, J. Jan. 11, 1944, No. 511. [Class 38 (i)] In a socket for electric plugs, an insulated housing 10 containing .the pin sockets is secured to a front plate 5 by screws 11, the terminals of the pin sockets being exposed at the back and arranged so that one terminal block 15 is directly behind its socket and the other block 20 is off-set so as to facilitate wiring, connection being made to its respective socket 21 by a strip 23 secured to the block by a screw 24. The blocks are horizontally slotted thus providing two parallel channels in which the wires are secured by screws 18 and 25 passing through insulating strips 14 and 12, the screws also serving to hold the blocks in position on the strips 12 and 19. A projecting arm 29 provides connection to the earth pin. 28. Mounting screws pass through holes 30, 31, the former making the earth connection. The socket also comprises a shutter 6.
Patent GB-156597-A (GB)
Title: Improvements in connecting means for brake rods
IPC: F16B7/04
Filed: 1921-01-06
Abstract: 156,597. Schaefer, F. March 10, 1915, [Convention date]. Rod couplings.-A connecting member for brake rods is formed from forged metal and comprises side wings or jaws 12, 13 in which are eyes 23 to receive a pin, these jaws being connected by parts 14, 15 which are bent downwardly and upwardly respectively in the course of formation from the blank. The brake rod 17 is passed through the opening 16 and bent round so as to encircle the part 14. The rod is prevented from unbending under strain by a cotter or pin 30 or by the bending of the wings so as to bear against the end 17<a> of the rod. The member is forged from a blank of the form shown in Fig. 6, the wings of which are bent downwardly. The metal at the points 21, 27 and around the eyes 23 is thickened in the process of forging.
Patent GB-1355942-A (GB)
Title: Axial piston pump
IPC: F04B1/20
Filed: 1973-01-05
Abstract: 1355942 Reciprocating pumps ROBERT BOSCH GmbH 5 Jan 1973 [25 Feb 1972] 855/73 Heading F1A In a swash-plate pump comprising a rotary cylinder block 8 with pistons 14 engaging a swash-plate 16 through slippers 15, a ring 18 holds the slippers in engagement with the swashplate and is held by a sleeve 19 located with limited axial movement by a plate 22 engaging a groove 21 in sleeve 19 and held in a radial recess 23 in the swash-plate by a screw 28 permitting limited tilting movement of plate 22, a spring or spring washer assembly 27 biasing the slippers on to the swash-plate, and an adjusting screw 25 setting the slipper clearance. Screw 25 may be accessible through an aperture in casing wall 3.
Patent HU-T57565-A (HU)
Title: Shoe bottom particularly for sports shoes5
Inventor: ANDERIE WOLF
IPC: A43B13/18
Filed: 1988-01-21
Abstract: 1. A shoe bottom, in particular for sports shoes, which in the shank (5) has weak locations (6, 7) for reducing the torsional stiffness about an axis extending substantially in the longitudinal direction of the shoe, in order to permit twisting, which is adapted to the natural movement of the foot, of the front sole portion (3) relative to the rear sole portion (4), about said axis, characterised in that the shank (5) of the shoe bottom (1, 2) is stiffened against bending about an axis extending transversely with respect to the longitudinal direction of the shoe by a striplike or rod-like stiffening element (9) which is directed in the longitudinal direction of the shoe.
Patent HU-T46048-A (HU)
Title: Process for producing olefin polymerization catalyst
Inventor: TURNER HOWERD W
IPC: C08F4/619
Filed: 1986-12-11
Abstract: An olefin polymerization catalyst comprises the reaction product of a metallocene complex of Group IVB, VB, VIb, and VIII of the Periodic Table and an excess of alumoxane.
Patent HU-T40933-A (HU)
Title: Electrostatic spraying device
Inventor: NOAKES TIMOTHY J
IPC: B05B5/025
Filed: 1986-02-17
Abstract: An apparatus and process for the electrostatic spraying of a mixture of a plurality of liquids, suitably liquids which react together rapidly to form a solid, liquids which are physically incompatible, or liquids, such as paints, to provide novel optical effects. The apparatus includes a sprayhead formed with a plurality of channels (4), (6) which communicate with a common outlet means (7). The liquids (A), (B) are supplied to respective channels (4), (6) and meet at the outlet means (7). There they are subjected to an electrical field which causes a mixture of the liquids to be drawn from the sprayhead in the form of one or more filaments, the or each filament containing a mixture of liquids in the proportions equal or substantially equal to the proportions in which the liquids were supplied to the sprayhead.
Patent JP-H07196869-A (JP)
Title: Discoloration-proof antibacterial resin composition
Inventor: OKUZONO TOSHIAKI
IPC: C08K3/22
Filed: 1994-01-05
Abstract: PURPOSE:To obtain a thermoplastic resin composition which is nontoxic, excellent in mechanical properties, thermal properties, hot-water resistance, electrical properties, dimensional accuracy, heat stability in molding and molding appearance, and especially excellent in light resistance and antibacterial properties. CONSTITUTION:This composition comprises 20-80 pts.wt. polyphenylene ether, 80-20 pts.wt. styrene polymer and/or polyamide, 0.1-10 pts.wt. antibacterial zeolite having an adsorbed water content of 2-15% and 0.05-5 pts.wt. at least one heat stabilizer selected from the group consisting of a phosphorus heat stabilizer of a molecular weight of 300 or above, a thioether heat stabilizer of a molecular weight of 300 or above, a highly sterically hindered phenol heat stabilizer of a molecular weight of 300 or above, zinc oxide and zinc sulfide.