baber/WOPTO huggingface dataset:
Patent CS-241341-B1 (CS)
Inventor: BIELY PETER
IPC: C12N9/26
Filed: 1984-11-19
Abstract: Vynález sa týká sposobu detekcie a-amyláz
v géloch. Podstata sposobu detekcie spočívá
v tom, že sa na agarový gél obsahujúci
kovalentne vyfarbený hydroxyetylškrob s
dvojsodnou solou l-amíno-2-sulfo-4-[3-(2j
-sulfátoetylsulfonylanilíno) ] antrachinonu,
s obsáhom 5,8 až 13,2 % hmot. tohto farbiva,
pós-obí agarovým gélom obsahujúci-m
a/alebo- neobsahujúcim «-amylázy, na-čo sa
gél obsahujúci kovalentne vyfarbený hydroxyetylškrob
s dvojsodnou sofou 1-amíno-
-2-sulf0-4- [ 3- (2-sulfátoetylsulfonylanilíno
jjantrachinó-nu oddělí a vymyje vodným
roztokom obsahujúcim 1 objem 0,05 až 0,2
mol. 1_1 acetátového pufru o pH 4,5 až 6,0
a 2 až 5 objemov zmesi etanol-acetón 2 : 1
až 5 :1 obj., čím sa z gé-lu v mieste posobenia
α-amyláz vymyjú enzýmom uvolněné farebné
fragmenty a miesta, kde o-amylázy
neposobia, zostanú -nezmenené. Vynález má
použitie v klinickej biochémii, diagnostike
a vo fermentačnom priemysle.
Patent CS-254486-B1 (CS)
Inventor: MALEK JAN
IPC: G01R19/165
Filed: 1985-12-10
Abstract: Účelem řešení je jednoduchá a snadná
kontrola nedovoleného dotykového napětí.
Uvedeného účelu je dosaženo tím, že na
první vstupní svorku je připojen odpor,
na jehož druhý pól je zapojen jednak první
kondenzátor a jednak druhý kondenzátor,
jehož druhý pól je zapojen na jeden pól
potenciometrů, jehož druhý pól je připojen
jednak na druhou vstupní svorku, jednak
na anodu druhé Zenerovy diody a jednak
na anodu třetí Zenerovy diody. Na
druhý pól prvního kondenzátoru je připojen
jednak jeden pól optického členu a
jednak katoda první Zenerovy diody, na
jejíž anodu je připojen jednak amitor
tranzistoru a jednak katoda třetí Zenerovy
diody. Na jezdec potenciometrů je
připojena jednak katoda druhé Zenerovy
diody a jednak báze tranzistoru, na jehož
kolektor je připojen druhý pól optického
členu.
Patent CS-256469-B1 (CS)
Inventor: PAVLIK MIROSLAV
IPC: B23Q39/02
Filed: 1985-12-11
Abstract: Jednoúčelový několikapolohový horizontální
obráběcí stroj je určen pro vícestranné
obrábění rotačních součástí při
jednom- upnutí. Jednoúčelový několikagolohový
horizontální obráběcí stroj tvoří
tři pracovní stanice a jedná stanice nakládací
a vykládací, vybavená manipulátorem
umístěným mezi vícepolohovým otočným
stolem a dopravníkem obrobků, uloženým na
něm v kazetách. Každá dvojice obrobků se
současně opracovává postupně v jednotlivých
pracovních stanicích, z nichž jedna
je osazena pracovní jednotkou s dvoupolohovou
otočnou hlavou, druhá pracovní jednotkou
s čtyřpolohovou otočnou hlavou a
třetí pracovní jednotka s dvojicí vyvrtávacích
vřeteníků, vybavených celně soustružící
hlavou a plánovacím zařízením.
Patent CS-235684-B1 (CS)
Inventor: SUCHOP ANTONIN
IPC: H03K5/00
Filed: 1982-12-14
Abstract: Vynález se týká oboru měřící a regulační
techniky a jeho účelem je zvýšení
přesnosti dělení napětí při potlačení
vlivu teploty jednoduchým zapojením,
sestávajícím z integrátoru s výstupem
zapojeným do řídicího vstupu kompárátoru,
j.ehož výstup je zapojen na ovládací
vstup integrátoru pro přepínání polarity
integrace nebo na ovládací vstup přepínače
polarity děleného napětí, zařazeného
mezi vstup děleného napětí a integ-
„ rační vstup integrátoru. Uvedeného účelu
se dosahuje tím, že výstup komparátoru
(4) je zapojen na ovládací vstup
* přepínače (7) polarity dělicího napětí
zařazeného mezi vstup (6) dělicího napětí
a komparační vstup (13) komparáto-
* ru (4).
Patent CS-259703-B1 (CS)
Inventor: BROUL MIROSLAV
IPC: C01B17/90
Filed: 1983-12-07
Abstract: Účelem vynálezu je energeticky nenáročným
způsobem přepracovat zředěnou odpadní
kyselinu sírovou s vysokým obsahem
železa na použitelný produkt. Toho se dosáhne
kontinuálním míšením s koncentrovanou
kyselinou sírovou při době zdržení
reakční směsi 5 až 150 minut. Bez chlazení
se reakční směs nechá sedimentovat. Čirá
kyselina sírová o koncentraci cca 60 %
hmotnostních se dále dokoncentrovává přídavkem
další koncentrované kyseliny na
konečnou koncentraci cca 80 % hmot. Vedlejším
účinkem druhého přídavku kyseliny
je, že i po ochlazení či transportu se nevylučují
krystaly monohydrátu síranu železnatého.
Takto zpracovanou kyselinu lze například
využít při loužení rud a výrobě hnojiv.
Patent CS-209374-B1 (CS)
Inventor: BEZNOSKA STANISLAV
IPC: A61B17/16
Filed: 1979-12-28
Abstract: Předmětem vynálezu je universální lékařský
nástroj pro vrtání,řezání závitů,šroubování a zavádění
operačních pomůcek v kostní chirurgii.
Universální lékařský nástroj dle vynálezu sestává
z hlavice točně uložené na dříku úhlové páky,
který je pevně zakotven v jednom konci rukojeti.
Z druhého konce rukojeti je vyvedena, druhá
úhlová páka, pevně spojená s upínací hlavicí, v níž
je upraven upevňovací otvor, kterým příčně prochází
suvná pojistka se dvěma tlačítky. Na jedno
z těchto tlačítekpůsobí pružina. Oba konce rukojeti
jsou částečně zakryty volně točně uloženým
ovládacím madlem.
Předmětný universální lékařský nástroj je použitelný
pro vrtání, řezání závitů, šroubování, zavádění
operačních pomůcek atd. při operačních zákrocích.
Patent CS-267270-B1 (CS)
Inventor: PRIHODA KAREL ING CSC
IPC: G01V3/06
Filed: 1987-12-28
Abstract: Způsob cyklického měření amplitudy
střídavého signálu filtrovaného frekvenčním
filtrem a zapojení k jeho provádění
mají za cíl zvýšení rychlosti i přesnosti
měření a snížení účinku rušivých signálů
superponovaných k měření střídavého
signálu, čehož se dosahuje tím, že po
startu měřicího oyklu, kdy je frekvenční
filtr převeden ze zatlumeného do aktivního
stavu, se nechá na výstupu frekvenčního
filtru jeho náběhovou charakteristikou
zkreslená amplityda střídavého
signálu dostoupit alespoň na 30 %
její ustálená hodnoty, načež se vzorek
střídavého signálu ve zvoleném vzorkovacím
intervalu integrujé. Podstatou
zapojení je stavový přepínač frekvenčního
filtru spřažený se startovacím spínačem,
který je spojen přes časovačwse
vzorkovačem na vstupu integrátoru. Řešení
je využitelné gři měřeni střídavých
signálů s extrémně nízkými kmitočty,
především v oboru geofyziky a regulační
techniky.
Patent DK-172423-B1 (DK)
Inventor: RICHARDSON KENNETH
IPC: C07D403/06
Filed: 1986-03-13
Granted: 1998-06-08
Abstract: A compound of the formula:- <CHEM> where R is a phenyl group optionally substituted by 1 to 3 substituents each independently selected from F, Cl, Br, I, CF3, C1-C4 alkyl and C1-C4 alkoxy, or R is a 5-chloropyrid-2-yl group; X is -OH, -F, -Cl or -Br; R<1> and R<2> are each independently N, CN3 or F; and Het is a I-tetrazolyl or 2-tetrazolyl group; or an O-ester or O-ether of a compound in which X is -OH; or a pharmaceutically or agriculturally acceptable salt of said compounds and esters and ethers. The compounds are useful as antifungal agents for human, veterinary and agricultural use.
Patent DK-168956-B1 (DK)
Inventor: BUSCH ALFRED
IPC: C11D3/00
Filed: 1987-04-23
Granted: 1994-07-18
Abstract: Bleaching detergent compositions containing a peroxyacid bleaching compound and a narrowly defined amide softening agent are disclosed. The compositions of the invention are capable of providing various fabric care benefits, inclusive of softeness, independently from and in presence of peroxyacid bleaching agents.
Patent DK-175821-B1 (DK)
Inventor: WALTER NEAL BURNETTE III
IPC: C12N15/31
Filed: 1989-05-03
Granted: 2005-03-14
Abstract: The development of subunits and subunit analogs of the Bordetella exotoxin by recombinant DNA techniques provides vaccine products that retain their biological activity, are highly immunogenic, and can confer protection against disease challenge. Genetically-engineered modifications of the subunits can result in products that retain immunogenicity, yet are free of enzymatic activity associated with toxin of reactogenicity.
Patent DK-175681-B1 (DK)
Inventor: WAKSELMAN CLAUDE
IPC: C07C319/14
Filed: 1989-12-12
Granted: 2005-01-17
Abstract: A process for the preparation of perhalogenoalkylthioethers in which there are brought into contact, optionally in a solvent
 a reducing agent consisting of a metal chosen from among zinc, cadmium, aluminium and manganese together with sulphur dioxide, or consisting of an alkali metal dithionite or an alkali metal, alkaline earth metal or metal hydroxymethanesulphinate, or consisting of a formate anion and sulphur dioxide,
 a disulphide and
 a perfluoroalkyl halide.
Patent DK-168383-B1 (DK)
Inventor: BOURZAT JEAN-DOMINIQUE
IPC: C07D401/04
Filed: 1987-12-01
Granted: 1994-03-21
Abstract: Derivatives of formula (I) in which A forms with the pyrrole ring an isoindoline, 6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine, 2,3,6,7- tetrahydro-5H-oxathiinno[1,4][2,3-c]pyrrole or 2,3,6,7-tetrahydro-5H- dithiinno[1,4][2,3-c]pyrrole nucleus, Het = naphthyridinyl, pyridyl or quinolyl which are unsubstituted or substituted by halogen, alkyl (1-4 C), alkoxy (1-4 C), alkylthio (1-4 C) or CF3, Y = CO.C=NOH or CHOH and R = alkenyl (3-10 C), alkyl which is unsubstituted or substituted by OH, alkoxy, alkylthio, cycloalkyl (3 - 6 C), NH2, alkylamino, dialkylamino, alkylcarbonylamino, piperazinyl, piperidyl, 1- azetidinyl, morpholino, pyrrolidinyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, (1-piperazinyl)carbonyl, piperidinocarbonyl, pyrrolidinocarbonyl, phenyl, pyridyl or 1-imidazolyl, or else R = 2- or 3-pyrrolidinyl, 2-, 3- or 4-piperidyl, cycloalkyl (3-6 C) or phenyl which is unsubstituted or substituted by halogen, alkyl (1-4 C), alkoxy (1-4 C) or alkylthio (1-4 C), it being understood that the radicals and alkyl portions contain 1 to 10 C unless specially mentioned, and the piperazinyl, piperidino, piperidyl, pyrrolidinyl and azetidinyl radicals may be unsubstituted or substituted in any position by an alkyl, alkylcarbonyl, benzyl or hydroxyalkyl radical or else may form a lactam functional group with the nitrogen atom of the ring. 
<??>These products can be used as anxiolytics. 
<IMAGE>
Patent IE-58963-B1 (IE)
Title: Y-ifn as active substance for inhibiting (preventing) degradation process in bone
IPC: A61P1/02
Filed: 1986-05-29
Abstract: gamma -IFN is used to prepare a pharmaceutical having a regulatory action on the processes occurring in the formation and destruction of bone.
Patent IE-32581-B1 (IE)
Title: Triazine derivatives
IPC: C07D251/52
Filed: 1968-12-03
Abstract: 1,241,228. Diamino - s - triazines. BADISCHE ANILIN & SODA-FABRIK A.G. 2 Dec., 1968 [6 Dec., 1967], No. 57028/68. Heading C2C. [Also in Division A5] Novel diamino-s-triazines of the Formula (I) wherein R<SP>1</SP> is a C 1 _ 4 aliphatic or alkoxyalkyl radical, R<SP>2</SP> is a group of the formula H-C#C-#CH- or -H-C##C(CH 3 )- CH 3 CH 3 and R<SP>3</SP> is a chlorine atom or a methoxy, methylmercapto or cyano group, are obtained by reacting cyanuric chloride with appropriate amines and optionally alkali-metal methoxides, methylmercaptides or cyanides, in any order. The compounds have herbicidal properties (see Division A5). 2,4 - Dichloro - 6 - ethylamino - 8 - triazine, 2 - methylmercapto - 4,6 - dichloro - 8 - triazine and 2 - methylmercapto - 4 - chloro - 6 - (butyn- 1 -yl- 3 -amino)-s-triazines are obtained as intermediates in the above process.
[GB1241228A]
Patent IE-45363-B1 (IE)
Title: Knife scabbard inculding a sharpening device
IPC: B24B3/36
Filed: 1977-07-27
Abstract: A sharpening device for knife scabbards, having a support block and two sharpening plates secured thereto. The plates project beyond an upper side of the support block so that respective broad surfaces of the two plates are in opposed and overlapping relationship, and the adjacent edges of the plates which extend beyond the zone of the overlap are relatively arranged to define a sharpening recess between them. The opposed broad surfaces are spaced apart so that a gap exists between the two plates, and the broad surfaces of both plates are polished, preferably to 0.4 micro meters Ra value.
Patent IE-48666-B1 (IE)
Title: Improvements in and relating to vices
IPC: B25B1/24
Filed: 1978-08-21
Abstract: A vice has jaws in the form of a pair of blocks (7, 8), each of which has a number of gripping surfaces (10, 12). Each block is detachably mounted on the vice and may be replaced by another block and/or turned on the vice to enable two of a plurality of gripping surfaces to be brought into mutual opposition.
Patent IE-37227-B1 (IE)
Title: A silencer for exhaust gases
IPC: F01N1/10
Filed: 1972-12-05
Abstract: A muffler or silencer, preferably for motor vehicles, adapted to be mounted to the exhaust pipe of an exhaust gas system. The silencer comprises a casing having arranged therein a number of means arranged to impede the passage of a major part of the gas flow and to re-direct said part gas flow rearwardly. Gas through-flow openings are provided at alternate ends of the gas flow re-directing means, between said ends and the casing walls. The arrangement of the through-flow openings is such as to force the gas flow to follow a zig-zag path, and baffle means may be arranged, if desired. The whole device may be made from a heat resistant plastics material.
[US3811531A]
Patent IE-75057-B1 (IE)
Title: Novel 8-substituted-2-amino-tetralines
Inventor: ANDEN NILS-ERIK
IPC: C07D209/14
Filed: 1990-05-22
Abstract: A compound of the formula <CHEM> Z is hydrogen or halogen, Q is COR<1> or 5- or 6-membered aryl which may contain 1 or 2 heteroatoms selected from N, O or S and may be substituted or fused wherein R is hydrogen or C1-methyl (cis-configuration), R<1> is C1-C6 alkyl or an aromatic ring which may contain heteroatoms selected from O and S and may be substituted or fused to an optionally substituted benzene ring, R<2> is hydrogen or C1-C6 alkyl and R<3> may be different groups defined in claim 1, and enantiomers/salts thereof, processes for preparation of said compounds, pharmaceutical preparations containing said compounds, use of and method of treatment of disorders in CNS by using said compounds.
Patent IE-45678-B1 (IE)
Title: Tissue specific protein and process for preparing same
IPC: C07K16/00
Filed: 1977-09-07
Abstract: The invention relates to a tissue specific protein, i.e. a substance which is a constituent of parenchymatous tissues, and to a process for preparing the same. The tissue protein is characterized by a protein proportion of 94+/-3%, essentially consisting of alpha -amino acids, an amino acid analysis of - Variation -Mol % coefficient (%) -lysine 5,64 12.7 -histidine 1.05 15.0 -arginine 3.83 9.2 -aspartic acid 9.84 6.8 -threonine 4.33 15.7 -serine 4.78 8.2 -glutamic acid 11.29 3.5 -proline 6.41 9.2 -glycine 8.65 9.8 -alanine 7.51 6.4 -cystine/2 2.11 12.6 -valine 6.68 7.9 -methionine 0.98 14.5 -isoleucine 3.32 7.4 -leucine 14.43 4.2 -tyrosine 5.10 14.9 -phenylalanine 3.08 13.5 -and tryptophan 1.14 11.4 - a carbohydrate proportion of 5.4+/-2.2% consisting of 3.0+/-1% of hexoses, 1.2+/-0.5% of hexosamine, 0.2+/-0.2% of fucose, and 1.0+/-0.5% of neuraminic acid, a sedimentation coefficient S20,wc=0.1 of 3.5 S+/-0.
Patent IE-56024-B1 (IE)
Title: Substituted 1-hydroxyethyl-triazolyl derivatives
IPC: C07D249/08
Filed: 1983-10-07
Abstract: Oxiranes of the formula:   <IMAGE>   in which R is   <IMAGE>  R1 is hydrogen or halogen, R2 is halogen, R3 is alkyl with 1 to 4 carbon atoms or alkoxy with 1 to 4 carbon atoms, n is 0, 1 or 2, Y1 and Y2 each independently is hydrogen or alkyl with 1 to 4 carbon atoms, Z is halogen or alkyl with 1 to 4 carbon atoms, and m is 0 or 1. and useful as intermediates in the preparation of fungicides.
Patent IE-53758-B1 (IE)
Title: Connection device for coaxial cables
IPC: H01R/
Filed: 1982-10-05
Abstract: Connection device for connecting a coaxial cable to a component on a circuit board. The circuit board (3) is of a type provided with rows of connection pins (14) along one side, said pins coacting with connection blocks (5) having female contacts (6) along one side and connection pins (7) associated therewith along the other side. The screening sleeve (8) of a coaxial cable may be thrust between four pins (7a-7d) on the connection block, and a pin (9), centrally situated in relation to these four pins, is soldered to the central conductor (11) of the coaxial cable. The screening sleeve is provided with longitudinal slits (12) which are approximately as wide as the thickness of the pins, but are shorter than the pins, so that when the sleeve is thrust between the pins the latter come into engagement with the edges of the slits and retain the sleeve (8).
Patent IE-61204-B1 (IE)
Title: Dyeing and printing of cellulosic fibre material with vat dyes
Inventor: MARTE WALTER
IPC: D06P1/22
Filed: 1989-07-28
Abstract: Process for dyeing and printing cellulosic fiber materials with vat dyes in the presence of enediols as reducing agents and alkali, using in addition small amount of organic water-miscible solvents, for example low molecular weight alcohols, when reducing the vat dyes. The vatting of the vat dyes proceeds uniformly and completely within a relatively short time, and the resulting vat dyes are reproducible and notable for high levelness and fastness properties.
Patent IE-68062-B1 (IE)
Title: Spiral Groove Seal Arrangement for High Vapor-Pressure Liquids
Inventor: PECHT GLENN G
IPC: F16J15/34
Filed: 1991-07-16
Abstract: A seal system is disclosed for sealing a housing (14) and rotatable shaft (34) against leakage of high vapor-pressure liquids such as natural gas. The method of sealing contemplates phase change of the liquefied hydrocarbon fluid across a first module (22). The gas so formed is contained by a second seal module (24) which operates as a dry running gas seal. The seal system has plural, axially spaced spiral-groove seal modules (22,24) mounted between the shaft (34) and housing (14). Each seal module has a primary ring (26A,26B) affixed to the housing (14) and a mating ring (30A,30B) affixed for rotation with the shaft (34) and the modules (22,24) define an intermediate cavity (25). The rings have opposed, radially extending faces (28A,28B) (32A,32B), one of which has a plurality of downstream pumping spiral grooves (80) extending from one circumference. The grooves (80) of the grooved ring of the upstream module (22) have a pattern which upon shaft rotation creates shear heating of the liquefied hydrocarbon fluid. The pattern has a land/groove surface area ratio greater than one and preferably a ratio of approximately three. The dam portion (82) relative to groove portion surface area is also preferably greater than one and the preferred dam/groove ratio is approximately three.
Patent IE-57430-B1 (IE)
Title: Dispensing system
IPC: B65D83/14
Filed: 1985-10-25
Abstract: A dispensing system for use with a wide variety of dispensable system for use with a wide variety of dispensable products which employs an inflatable pouch (100) positioned within the container (150) containing a pressurizing gas phase. A product gas phase (140) is incorporated in the expelled product (130) to enhance the product appearance, functionality or safety. The weight to weight (w/w) ratio of the product gas phase to the flowable materials should be between about 0.001:1 to about 0.015:1 and preferably, the w/w ratio of the product gas phase to the flowable material is between about 0.001:1 and about 0.07:1.
Patent IE-65633-B1 (IE)
Title: Process for the removal of cyclodextrin residues from fats and oils
Inventor: CULLY JAN DR
IPC: A23L5/20
Filed: 1991-12-04
Abstract: To remove cyclodextrin residues from fats and oils, the latter are emulsified in water and the cyclodextrin is enzymatically degraded with the aid of at least one  alpha -amylase selected from the  alpha -amylases produced by microorganisms of the group Aspergillus niger, Aspergillus oryzae, Bacillus polymyxa, porcine pancreatic amylase, Bacillus coagulans and Flavobacterium, and/or of preferably a CTGase selected from the CTGases produced by bacteria of the group Bacillus, Klebsiella, Micrococcus and alkalophilic bacteria.
Patent IE-66596-B1 (IE)
Title: Cutting apparatus
Inventor: PATTERSON EDWARD NEVILLE
IPC: A01F29/00
Filed: 1992-09-03
Abstract: A cutting apparatus comprises a rotary cutter (10) mounted at the lower end of an upwardly directed duct (12). The cutter (10) is a roller having a series of blades (14) projecting therefrom. A conveyor (20) is provided for presenting straw to the cutter (10) in a compressed ribbon state and against a stationary cutting edge (11). A hopper (52) is provided to receive cut straw which is exhausted from the duct (12) and which has passed through a screen (42).
Patent LU-500778-B1 (LU)
Title: Device for Determining Fracture Toughness of Soil by Self-weight and Use Method thereof
Inventor: CHEN HONGKAI
IPC: G01N33/24
Filed: 2021-10-22
Granted: 2022-04-22
Abstract: The invention discloses a device for determining the fracture toughness of soil by self-weight and use method thereof. The device comprises a fixing unit, a sliding unit and a sliding control unit. The fix unit and that sliding unit are arrange in parallel and are vertically arranged on a horizontal test bench, the bottom of the fixed unit is fixedly connected with the horizontal test bench, and the bottom of the sliding unit is slidably connected with the horizontal test bench, the sliding unit is electrically connected with the sliding control unit for controlling the movement of the sliding unit. According to the method, the fracture toughness of different soil types can be determined, and important mechanical parameters are provided for studying the disaster mechanism of geological disasters such as soil landslide, ground collapse, initial debris flow, ground fissures and the like.
Patent LU-501675-B1 (LU)
Title: Compliance test method and system for receiver autonomous integrity monitoring (raim) performance of beidou navigation satellite system (bds) airborne equipment
Inventor: LIU RUIHUA
IPC: G01S19/23
Filed: 2022-03-16
Granted: 2023-09-21
Abstract: The present disclosure provides a compliance test method and system for Receiver Autonomous Integrity Monitoring (RAIM) performance of a BeiDou navigation satellite system (BDS) airborne equipment. The method includes: acquiring BDS almanac parameters and test parameters (101); determining whether the satellites are visible according to the almanac parameters and the test parameters (102); acquiring space-time points when the satellites are visible (103); computing the Horizontal Protection Limit (HPL) of each of the space-time points (104); selecting marginal geometries space-time points according to the HPL (105); test the space-time points and the marginal geometries space-time points to obtain a first test result (106); acquiring the configuration parameters and the BDS almanac of the satellite navigation vector signal generator for the marginal geometries space-time points (107); decoding the configuration parameters and the BDS almanac to obtain the number of visible satellites (108).
Patent LU-501979-B1 (LU)
Title: Chemical recycling of polyurethane foams with amines
Inventor: ZDOVC BLAZ
IPC: C08J11/28
Filed: 2022-04-29
Granted: 2023-10-30
Abstract: The present invention relates to recycling of polyurethane, in particular polyurethane foams by aminolysis with reagents comprising both primary and tertiary amino groups in the structure to recover polyols of comparable quality to the commercial ones.