baber/WOPTO huggingface dataset:
Patent KR-200487116-Y1 (KR)
Title: 골프 퍼팅 연습기
IPC: A63B69/36
Filed: 2017-09-27
Granted: 2018-08-06
Abstract: 본 고안은 골프 퍼팅 연습기에 관한 것으로서, 일측으로 볼록하게 형성되는 홈 형태의 통과 프레임; 상기 통과 프레임의 양단에서 외측으로 연장 형성되는 지지 프레임; 상기 통과 프레임의 양단 또는 양단 부근을 가로지르는 방향으로 설치되는 탄성 와이어; 및, 양단이 상기 지지 프레임에 설치되며 상기 통과 프레임을 외측에서 이격된 상태로 감쌀 수 있는 크기로 형성되는 홈 형태의 차단 부재를 포함하여 구성되는 것을 특징으로 하므로, 휴대성이 용이하고, 퍼팅시 골프공의 퍼팅 거리, 방향 및 속도를 쉽게 예측할 수 있다는 이점이 있다.
Patent KR-200489515-Y1 (KR)
IPC: H04N5/235
Filed: 2018-09-21
Granted: 2019-06-28
Abstract: 본 고안은 전광판 모니터링 장치에 관한 것으로서, 더욱 상세히는 전광판 상부에 설치되어 전광판의 고장 여부를 판단하고, 고장이 발생한 전광판 관련 정보를 제공하는 전광판 모니터링 장치에 관한 것이다. 본 고안은 전광판의 상부에 결합 설치되는 프레임과 연결되는 광각 렌즈를 가진 카메라를 통해 전광판에서 화면에 해당하는 도트 매트릭스 모듈의 전 영역을 촬영하고, 촬영된 영상에 대한 왜곡 보정 및 보상을 수행한 후 미리 설정된 블록 단위로 분할하여 이상이 발생한 블록을 검출하고 이를 바탕으로 전광판의 고장 여부를 판단한 후 전광판의 고장 발생시 원격지의 관리 서버에 통지하도록 구성됨으로써, 다수의 전광판을 관리하는 관리자가 원격지에서 고장이 발생한 전광판만을 용이하게 식별할 수 있도록 지원하는 동시에 고장이 발생한 전광판에 대해서만 수리가 이루어지도록 지원함으로써 다수의 전광판 관리에 대한 관리 편의성 및 효율성을 높일 수 있을 뿐만 아니라 인건비 절감에 따른 경제성을 보장하는 효과가 있다.
Patent KR-200489753-Y1 (KR)
IPC: A41D1/06
Filed: 2019-03-08
Granted: 2019-08-01
Abstract: 본 고안은 바지 몸체 및 허리부를 포함하는 바지에 있어서, 상기 허리부는 겉감(30)과 안감(40)으로 구성되며; 상기 겉감(30)은 일측을 접어 외측 겉감(31), 내측 겉감(32) 및 겉감 접히는 부분(33)으로 구성되고, 폭방향의 날실이 길이 방향의 씨실의 신축성 보다 작거나 없는 것으로 구성되며; 상기 안감(40)은 상기 외측 겉감(31)의 내측에 핫멜트에 의해 부착되는 외측 안감(41)과 내측 겉감(32)의 내측에 핫멜트에 의해 부착되는 내측 안감(42)으로 구성되며; 상기 외측 안감(41)과 내측 안감(42)은 신축성 소재인 심지를 이용하며; 상기 겉감의 마감 처리는 주머니를 만드는데 사용하는 원단을 사선으로 커팅하여 해리 마감(60) 처리를 진행하여 신축성을 부가하는 것을 특징으로 하는 신축성 바지를 제안한다.
Patent KR-200492039-Y1 (KR)
Title: 보온 및 보냉 종이박스
IPC: B65D5/42
Filed: 2019-04-25
Granted: 2020-07-24
Abstract: 본 고안은 보온 및 보냉 종이박스에 관한 것으로서, 종이박스를 사용하면서도 일정시간 동안 보온 및 보냉 성능을 유지할 수 있는 종이박스를 제공하는 데 그 목적이 있다. 이를 위하여 본 고안은, 일정 두께의 골판지를 육면체 형상으로 조립하여 사용하는 종이박스에 있어서, 상기 종이박스는, 외측 종이박스(20)와, 상기 외측 종이박스(20)의 내부에 안착되는 내측 종이박스(10)로 이루어지고, 상기 외측 종이박스(20)의 외면과, 상기 내측 종이박스(10)의 내면에 알루미늄 증착 PET 필름이 라미네이팅되는 것을 특징으로 한다.
Patent KR-200492629-Y1 (KR)
IPC: H05H1/46
Filed: 2020-02-25
Granted: 2020-11-12
Abstract: 본 고안은 바늘형의 전극을 박형의 세라믹판 위에 설치하여 유전장벽방전 방식의 교류형 고전압을 인가하여 미소-방전의 마이크로-플라즈마 소스 및 소자로서, 소형의 멸균기, 플라즈마 가습기, 수족관, 공기청정기 등에 편리하게 장착하여 사용하는 플라즈마 다이오드 소스 및 소자의 제공이다.
Patent KR-200495624-Y1 (KR)
IPC: A47C11/00
Filed: 2020-12-11
Granted: 2022-07-11
Abstract: 본 고안은 바닥면의 굴곡에 따라 관람석의 하측에 설치하여 지반의 불균형에 따른 관람석 하부의 가로축과 세로축간의 불균형을 잡아줌으로써, 관람석을 안정적으로 설치할 수 있도록 된 새로운 구조의 실외 경사지에 관람석을 설치하기 위한 관람석 높낮이 조절 시스템에 관한 것이다. 
본 고안에 따른 관람석 높낮이 조절 시스템은 상기 트러스부재(4)의 하측면에 선택적으로 결합되어 지지프레임(1)의 높이를 조절하는 삼각다리부재(10) 또는 사각다리부재(20)와, 상기 삼각다리부재(10)와 사각다리부재(20)의 후측에 측방향으로 연장되도록 구비되어 측방향에 구비된 다른 삼각다리부재(10) 또는 사각다리부재(20)의 후측면에 고정되는 삼각대(40)와, 상기 삼각다리부재(10)와 사각다리부재(20)의 하단에 결합되어 삼각다리부재(10) 또는 사각다리부재(20)의 높이를 미세조절하는 높이조절자키(50)가 구비되어, 삼각다리부재(10) 또는 사각다리부재(20)를 트러스부재(4)의 하측면에 고정하고, 삼각대(40)를 이용하여 측방향에 위치된 삼각다리부재(10) 또는 사각다리부재(20)를 상호 고정한 후, 상기 높이조절자키(50)의 손잡이부재(53a)를 잡고 회전부재(53)를 회전시키면 나사축(51)과 지지판(52)이 승강되면서, 지지판(52)이 바닥면에 밀착된다. 
따라서, 상기 높이조절자키(50)에 의해 바닥면에 견고하게 안착됨으로, 지반의 불균형에 따른 관람석 하부의 가로축과 세로축간의 불균형을 잡아줄 수 있으며, 관람석을 안정적으로 설치할 수 있는 장점이 있다.
Patent PH-22015000096-Y1 (PH)
Title: A virgin coconut oil-based foot scrub
Inventor: QUINONES HUBERT G
IPC: A61Q19/10
Filed: 2015-03-05
Abstract: A virgin coconut oil based foot scrub comprising oil phase components of Laurel Sulphate 10 pcnt , Stearic Acid 15 pcnt , Menthol Crystal 5 pcnt , VCO (Virgin Coconut Oil) 10 pcnt , Cetyl Alcohol 5 pcnt and water phase components of Brown Sugar 15 pcnt , Lactic Acid 15 pcnt , Sodium Chloride 8 pcnt , Glycerine Pure 10 pcnt , Propyl Paraben 5 pcnt , Emulsifier 2 pcnt .
Patent BR-202013008791-Y1 (BR)
Title: kit de alavancas
Inventor: ALESSANDRO JOSÉ DE OLIVEIRA
IPC: B25B33/00
Filed: 2013-04-11
Abstract: resumo “kit de alavancas” a presente patente de modelo de utilidade, diz respeito a kit de alavancas (1) o qual corresponde a conjunto de quatro modelos de ferramentas, duas maiores e duas menores, as quais são destinadas para utilização na remoção de peças e componentes, sendo o mesmo caracterizado por possuir de forma combinada extremidades em formatos de espátula (2) e de letras, “u”(3) e “v” (4) , sendo que a alavanca do modelo maior, possui corpo chato e totalmente reto, e o formato dos modelos menores é chato, mas provido de inclinação ou elevação angular localizada a partir do segundo terço no sentido da extremidade em formato de letra (3) ou (4), pela face posterior, as alavancas são dotadas de nervuras (5) posicionadas longitudinalmente aumentando a resistência, finalmente, vale também destacar que a configuração dos quatro modelos de ferramentas são combinados ou distribuídos da seguinte forma: o primeiro modelo maior dispõe uma extremidade em forma de espátula (2) trapezoidal e a outra extremidade com formato da letra “v” (4), o segundo modelo maior dispõe uma extremidade em formato de espátula (2) retangular e a outra extremidade com o formato da letra “u” (3), o primeiro modelo menor dispõe uma extremidade em forma de espátula (2) trapezoidal e a outra extremidade com formato da letra “v” (4), e o por último, o segundo modelo menor possui uma extremidade em formato de espátula (2) retangular e a outra extremidade com o formato da letra “u” (3)
Patent BR-202014021805-Y1 (BR)
Title: disposição construtiva introduzida em chaveiro com cápsula amovível e intercambiável para acomodação de refil de fio/fita dental
Inventor: NILSON ALTAIR DE SOUZA
IPC: A44B15/00
Filed: 2014-09-03
Abstract: DISPOSIÇÃO CONSTRUTIVA INTRODUZIDA EM CHAVEIRO COM CÁPSULA AMOVÍVEL E INTERCAMBIÁVEL PARA ACOMODAÇÃO DE REFIL DE FIO/FITA DENTAL, mais precisamente trata-se de chaveiro (1) do tipo idealizado para acomodação de refil de fio/fita dental; dito chaveiro (1) compreende moldura estrutural (2) provida de meios de fixação do aro (3) e meios de alojamento de cápsula amovível e intercambiável (4) receptora do refil (5) de fio/fita dental, sendo que tanto a moldura (2) quanto a cápsula (4) são confeccionados em polímero rígido ou outro material adequado com cores diversas; dita moldura (2) apresenta formato periférico, na forma de losango provido de prolongamento (2a) desenvolvido a partir de um dos vértices (2b) configurando membro projetante (MP) de seção retangular em cuja face plana (2c) é praticado rebaixo (2c1) configurando um berço (BE) para a montagem da extremidade livre deformada (3a) da argola (3) receptora de chaves ou assemelhados; dito aro (3) apresenta-se formado por peça anelar (3b) de seção transversal retangular e provida de recorte configurando um par de extremidades livres, sendo uma extremidade deformada (3a) compreendida por trecho retilíneo e provida de orifício traspassante (3c) que quando alinhado com orifício (2c2) praticado no rebaixo (2c1) permite a montagem do pino (6) e mola (7), enquanto que a outra extremidade livre (...).
Patent BR-202018003675-Y1 (BR)
Title: Disposição construtiva em câmara térmica para fabricação de iogurte caseiro
Inventor: GERAHRD MICHEL WOLF
IPC: A23C9/12
Filed: 2018-02-26
Abstract: ?DISPOSIÇÃO CONSTRUTIVA EM CÂMARA TÉRMICA PARA A FABRICAÇÃO DE IOGURTE CASEIRO?, do tipo natural e do tipo grego, seletivamente, dita câmara térmica sendo compreendida por um recipiente externo (invólucro) (1) dotado de sua respectiva tampa hermética (2), dito invólucro incorporando um batente perimetral interno (3) próximo de sua borda superior, no qual é seletivamente acomodado e suportado de forma coaxial um recipiente interno (4) e/ou um recipiente filtrante (6); sendo que o recipiente interno (4) apresenta dimensões menores que a do invólucro (1), definindo entre ambos um espaço perimetral livre formador de uma câmara de ar (5) que atua como isolamento térmico para a câmara térmica (1, 2); sendo que o recipiente filtrante (6) de dimensões ligeiramente menores que a do recipiente interno (4), também possibilita a sua acomodação justa ao recipiente interno (4), porém apresenta uma profundidade menor que a definida por esse recipiente interno (4), definindo um vão coletor (7) entre as paredes de fundo desses últimos; sendo que na parede de fundo do recipiente filtrante (6) se apresenta uma superfície telada (6a), através da qual ocorre a drenagem de líquido (soro) gerado durante o processamento do volume lácteo mantido interno a câmara térmica, assim definida.
Patent JP-S601751-Y2 (JP)
IPC: A42B3/24
Filed: 1980-11-17
Granted: 1985-01-18
Abstract: Protective headgear for martial arts, which protects the face and head of fighters, comprises a resilient cover body 11 formed at the front with a viewing window 14 for securing adequate breathing and field of view for the wearer and covering the periphery of face and the sides of head, and a protective mask 23 secured fixedly to the front of the cover body 11 to cover the viewing window 14, having a spherical viewing portion 26 and formed of transparent anti-shock synthetic resin; this mask is provided in the lower half and in the outer periphery of the viewing portion with vent holes 27 and ventilating windows 29 for the breath of the wearer, and the portion containing the holes 27 is thickened.
Patent IT-221803-Z2 (IT)
Title: Calzatura sportiva particolarmente per calciatori, con zone superficiali sagomata
IPC: A43B/
Filed: 1991-04-09
Granted: 1994-10-20
Abstract: Il presente trovato si riferisce ad una calzatura sportiva, particolarmente per calciatori, con zone superficiali sagomate che comprende una suola prevalentemente rigida alla quale è associata una tomaia munita di chiusura con lacci.La peculiarità del trovato è costituita dal fatto di comprendere inserti applicabili in corrispondenza di dette posizioni superficiali di detta tomaia. I citati inserti comprendono un inserto frontale con superficie sostanzialmente piana, applicabile in corrispondenza della punta della tomaia, un inserto laterale esterno prevalentemente piano, applicabile in corrispondenza della zona laterale esterna, un inserto laterale interno prevalentemente piano, applicabile in corrispondenza della zona laterale interna, ed un inserto superiore sostanzialmente concavo, amovibilmente sovrapponibile alla zona di chiusura di detta tomaia.
Patent IT-226773-Z2 (IT)
Title: Carro ferroviario com portelli laterali scorrevoli ciascuno su diverse guide poste su piani differenti
IPC: B61D19/00
Filed: 1992-07-14
Granted: 1997-07-01
Abstract: Un carro ferroviario (1) comprende un corpo (2) associato a carrelli (3) in sé noti presentanti usuali ruote (4) atte a muoversi su binari (5), detto corpo (2) presentando una struttura (6) per il contenimento di merci (8), queste ultime essendo caricate in tale struttura attraverso portelli laterali (16), mobili lungo guide (50), attraverso elementi (49) scorrevoli lungo queste ultime. Almeno uno di tali portelli (16) prevede una pluralità di detti elementi scorrevoli (49) disposti su almeno due piani differenti, detti elementi (49) tra loro sostanzialmente sovrapposti essendo atti a muoversi lungo guide (50) disposte anch'esse su due piani paralleli, dette guide (50) essendo almeno in parte sfalsate tra di loro.
Patent JP-S63171730-A (JP)
Title: Automatic separating and feeding method for sheet and device thereof
Inventor: NAKADA KOJI
IPC: B65H3/34
Filed: 1987-01-05
Abstract: PURPOSE:To accurately separate sheets piece by piece as well as to feedit to the next process, by installing a means which separates each sheet from another one with a rotating claw brought into contact with the sheet. CONSTITUTION:When the elastic member additionally installed in a claw 14 comes into contact with a tip of the foremost sheet 5a, this foremost sheet 5s is turned upside down on a feeding belt 8 as directed to the feeding direction C. At this time, with detection of a sensor 13, a belt 3 and a head 4 are driven again, delivering each sheet 5 till the foremost sheet 5a arrives at a detection position of the sensor 13. During this while, the claw 14 comes nearer to a spot in and around the forefront of the sheet 5, separating the foremost sheet 5a toward the feeding direction, and such operation as turning it upside down takes place. On the other hand, the sheet 5b already turned upside down on the feeding belt 8 is conveyed in the feeding direction C with rotation of the feeding belt 8, thus it is fed to the next process.
Patent CR-7467-A (CR)
Title: Derivados de fenilamidas siliconadas utiles como microbiocida
Inventor: JOSEF EHRENFREUND
IPC: C07F7/08
Filed: 2004-09-08
Abstract: Un compuesto de formula (I) donde Het es un anillo heterociclico de 5 o 6 miembros que contiene entre uno y tres heteroatomos, cada uno seleccionado indepndientemente entre oxigeno, nitrogeno y azufre, anillo que esta sustituido por grupos R4, R5 y R6, R1 es hidrogeno o halo; R2 es hidrogeno o halo; R3 es c2-12 alquilo opcionalmente sustituido, C2-12 alquenilo opcionalmente sustituido, fenilo opcionalemnte sustituido o heterociclilo opcionalmente sustituido; y R4, R5 y R6 se seleccionan independientemente entre hidrogeno, halo, ciano, nitro, C1-4 alquilo, C1-4 haloalquilo, C1-4 alquilo y C1-4 haloalcoxi (C1-4) alquilo, teniendo en cuenta que al menos uno de R4, R5 y R6 no es hidrogeno.
Patent CR-9482-A (CR)
Title: Ayuda para dispensado de preparaciones farmaceuticas o cosmeticas semisolidas envasadas en un envase tipo sache
Inventor: STEFAN BRACHT
IPC: B65D83/00
Filed: 2007-10-29
Abstract: La presente invencion se refiere a una ayuda para el dispensado de preparaciones farmaceuticas y cosmeticas semisolidas envasado en un envase de tipo sache, donde la ayuda de dispensado comprende un alojamiento cuadrangular que contiene un elemento de empuje y un rodillo expulsador asociado.
Patent GB-508560-A (GB)
Title: Improvements in or relating to frequency indicating instruments
IPC: G01R23/00
Filed: 1938-01-01
Abstract: 508,560. Frequency measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., WRIGHT, G. M., and AUSTIN, C. Jan. 1, 1938, No. 37. [Class 37] To facilitate the exact determination of the point at which a wavemeter circuit 1, 2 is tuned to resonance or to a harmonic relationship with the wave being measured, the circuit is supplied via an impedance 12 or a triode valve and the input E.M.F. and that across the tuned circuit are applied respectively to the X and Y plates of an oscillograph. At resonance, the two E.M.F.'s are in phase and the trace is a straight line. When the relationship is harmonic, a Lissajous figure without loops is traced.
Patent GB-951734-A (GB)
Title: Basic anthraquinone dyestuffs containing quaternary ammonium groups
IPC: C09B1/54
Filed: 1961-01-02
Abstract: The invention comprises anthraquinone dyes of formula <FORM:0951734/C3/1> wherein R is an alkyl, cycloalkyl or aryl radical, R1 is an alkylene radical of 2-6 carbon atoms, R2 and R3 are alkyl groups containing 1-3 carbon atoms or may be joined through a carbon, nitrogen or oxygen atom and the quaternary nitrogen atom to form a heterocyclic ring, R4 is an alkyl group having 1-4 carbon atoms and A is an anion.  The dyes are prepared by reacting insolvent medium an anthraquinone compound of formula <FORM:0951734/C3/2> with an alkali metal salt of an alkanolamine of formula <FORM:0951734/C3/3> heating the reaction mixture at reflux temperature and treating the reaction product with a quaternizing agent R4A. Specified solvents are benzene, mono-, di- and tri-chlorobenzenes, ethylene glycol ethers, toluene, xylene, cyclohexane, dioxane and hexane. Specified starting materials include 1-amino-2-sulpho-4-cyclohexylamino- or anilino- or (p-acetamidophenyl)-amino- or methylamino- or (o-thiophenyl)-amino- or [31 - N,N - di - (b  - hydroxyethyl)-sulphonamidophenyl] - amino- or [31 - (311-carboxy - 411 - hydroxyphenylsulphonyl) methyl - 61 - methoxy - phenyl] - amino - anthraquinone; N,N - dimethylethanolamine, N,N-diethyl - (1 - amino - 2,2 - dimethyl - 4 - hydroxybutane), N - (2 - hydroxyethyl) - piperazine or morpholine, N,N-dimethylisopropanolamine; methyl, ethyl and propyl chlorides, bromides and iodides, dimethyl sulphate and ethyl p-toluenesulphate. The dyes give violet shades on polyacrylonitrile fibres and also dye polyester and polyamide fibres.  Examples are given.
Patent GB-177279-A (GB)
Title: Improvements in or relating to apparatus for heating air for buildings or compartments
IPC: B65H9/16
Filed: 1921-01-03
Abstract: 177,279. Davis, W. K. Jan. 3, 1921. Heating air.-Air for warming buildings or the compartments of vehicles is passed by a fan 11 over the outer surface of a series of double tubes 1 and directed by baffles 14, 17 in a casing 10, through the inner pipes 2, to the discharge conduit 13. The air is heated by steam within the annulus 3 between the inner and outer tubes. Radiating-fins 9 may be fitted to the outer tubes.
Patent JP-H02184207-A (JP)
Title: Overhead-travelling hoist for enclosed distribution board
Inventor: TSUJI AKIRA
IPC: H02B3/00
Filed: 1989-01-04
Abstract: PURPOSE:To facilitate operation by arranging such that a stopper interferes with a wheel to apply brake when lowering speed of wire rope exceeds over a predetermined level. CONSTITUTION:A wheel 13 rotates to the left during normal lowering work and an endless belt 16d is stretched between a toothed roller 16a and a r tension roller 16b to pull up a movable roller 16c in the direction of the toothed roller 16a, but it is balanced with the force of a spring 19 and a gap 18 is maintained. When a suspension hook falls due to malfunction of an automatic brake, for example, rotary speed of the wheel 13 exceeds over manual speed and force is applied instantaneously onto the endless belt 16d between the toothed roller 16a and the movable roller 16c. Since the instantaneous force exceeds over the force of the spring 19, the movable roller 16c moves counter clockwise and the wheel 13 interferes with the stopper 17 to apply brake.
Patent CR-11198-A (CR)
Title: El g-pan (el tambor de sol), un instrumento musical
Inventor: COPELAND BRIAN R
IPC: G10D13/08
Filed: 2010-01-07
Abstract: Un conjunto de instrumentos musicales de tambores metalicos acusticos, siendo una innovacion, la cual significativamente mejora la tecnica anterior de los tambores metalicos acusticos tradicionales.
Patent CU-34351-A (CU)
Title: Extracción de mineral de hierro y cromo de minerales lateríticos de nickel
Inventor: PITARD FRANCIS F
IPC: C22B7/00
Filed: 1975-09-23
Abstract: El cromo es removido del mineral lateritico de níquel dimensionando las partículas del mineral según resultan de la misma para proveer una fracción de finos en la cual sustancialmente todo el cromo esta en forma de ácido soluble y entonces lixiviando dicho cromo soluble de dicha fracción de finos junto con níquel y otros valores de metal asociado por lixiviación a alta presión a una temperatura llevada en una solución acuosa de ácido sulfúrico de tal forma que se produce restos de mineral de hierro muy bajo en cromo adecuado para recobrar hierro del mismo.
Patent DK-76286-A (DK)
Inventor: COURTNEY MICHAEL
IPC: A61P43/00
Filed: 1986-02-18
Abstract: An analogue of human α1-antitrypsin comprises the whole or a part of the protein corresponding to human α-antitrypsin in which the amino acid in position 358 is selected from arginine and the natural amino acids which are only slightly oxidized, or not oxidized at all, when they are inserted into a protein.
Patent EG-19908-A (EG)
Title: Novel 4-benzoyl isoxazole derivatives and their use as herbicide
Inventor: CAIN PAUL ALFRED
IPC: A01N43/80
Filed: 1992-08-04
Granted: 1996-05-31
Abstract: 4-Benzoyl isoxazole derivatives of general formula (I): <CHEM>  wherein:     R<1> represents cyclopropyl;     R<2> represents -S(O)nR;     R<3> represents chlorine, bromine or trifluoromethyl;     R represents methyl; and     n represents 2; and their use as herbicides is described. >  w
Patent EG-17003-A (EG)
Title: Extruder
IPC: B29C48/67
Filed: 1984-07-31
Granted: 1990-12-30
Abstract: An extruder apparatus for mixing polyvinyl chloride compounds wherein the extruder mixing screw has a feed section, a transition section and a metering section. The screw has a single helical flight that extends for the full length thereof. The pitch of the flights in the metering section are smaller in pitch that the other sections. In addition the metering section has a plurality of shear rings located along the axial length thereof with shear rings on such metering section.
Patent FR-1451318-A (FR)
IPC: B29C48/12
Filed: 1965-06-16
Granted: 1966-09-02
Abstract: 1,110,598. Making thermoplastic film by extrusion. UNION CARBIDE CORPORATION. 17 June, 1965 [17 June, 1964], No. 25720/65. Heading B5B. Thermoplastic film, e.g. of polyethylene or polypropylene, is extruded at 12 in such a way as to have beaded edges and is taken up by an internally cooled cooling roll 15, an air cushion being maintained between the cooling roll and the part of the film between the beads to prevent surface or other defects such as scratches, gel tack marks, puckers and blotches, The air cushion is obtained by the motion of the roll which may have a matt surface over most of its width for this purpose. The diameter of the roll between the parts contacting the beads of the film may be reduced to increase the separation between the film and roll. Regulation of the quantity of air in the cushion is effected by air knife 18 across the film between the beads at the point at which the beads first contact the roll. This contact is assisted by air jets 20 above each bead. A vacuum knife 22 reduces turbulence at the point where the air cushion is formed. Heaters 24 remove any volatiles from the roll surface. The film beads may be produced by providing the extruder 12 with end plate heaters which causes the plastic to extrude faster at the edges than the middle. The film may be extruded horizontally, vertically downwards or upwards or in an inclination direction. Fourteen examples of extrusion of polyethylene and polypropylene film, some with erucamide as slip agent, are given, together with full details of process parameters.
Patent GB-671123-A (GB)
Title: Process for the catalytic partial oxidation of olefins containing at least three carbon atoms to unsaturated carbonylic compounds and the unsaturated carbonylic compounds so produced
Filed: 1950-01-04
Abstract: Unsaturated aldehydes or ketones are prepared by passing a gaseous mixture comprising an olefin of at least 3 carbon atoms and oxygen in contact with cuprous oxide, the activity of the catalyst being restored or maintained by periodically discontinuing or substantially decreasing the flow of olefin for a brief interval while subjecting the catalyst to a stream of oxygen or oxygen-containing gas, and then restoring the olefin flow.  The oxidation is effected at about 150-650 DEG  C. or more and desirably at 4-15 atmos.  The activation of the catalyst is preferably effected at the same temperatures and pressures.  The olefin feed may be cut off while the flow of other feed components including oxygen or air and, generally, an inert gas such as steam, nitrogen, carbon dioxide or methane is continued, if desired at an increased rate, or the entire feed may be diverted and replaced by an oxygen-containing gas.  The time for activation may be a few minutes up to an hour, and the frequency may be once every hour up to 100 or more hours.  The catalyst is desirably in fixed bed but moving bed or fluidized operation is possible.  The oxygen content of the activating gas is generally above 3 and not over 35 per cent by volume.  With higher oxygen content, a reduction with pure olefin or hydrogen may be desirable after the activation and before resuming the flow of reaction gas.  Before or after activation, flushing with inert gas may be used.  The oxygen concentration of the feed gases is preferably below the maximum at which mixtures of the olefin, inert gas, and oxygen form non-explosive mixtures at all values of the ratio between volume concentration of olefin and of inert gas, i.e. about 10 per cent for propylene and 11 per cent for isobutylene.  In an example, a mixture of 30 per cent propylene, 37.5 per cent air, and 32.5 per cent steam is passed over cuprous oxide on silicon carbide at 375 DEG  C. and 45 p.s.i.g. to yield acrolein.  Periodic reactivation is effected with air or air and steam at about 385 DEG C.  Specification 640,383 is referred to.