Patents by Inventor Aziz El Sayed

Aziz El Sayed has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11028603
    Abstract: A scaffold having an opposing pair of half funicular trusses that are detachably or pivotably connected in the middle to establish a funicular arched truss is provided, where when in a detached or pivoted state, storage and transporting a plurality of the half funicular trusses is simplified.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 8, 2021
    Assignee: The American University in Cairo
    Inventors: Ahmed Yehia Abdel Aziz El-Sayed, Mohamed Darwish, Khaled Nassar
  • Publication number: 20200181928
    Abstract: A scaffold having an opposing pair of half funicular trusses that are detachably or pivotably connected in the middle to establish a funicular arched truss is provided, where when in a detached or pivoted state, storage and transporting a plurality of the half funicular trusses is simplified.
    Type: Application
    Filed: May 30, 2018
    Publication date: June 11, 2020
    Inventors: Ahmed Yehia Abdel Aziz El-Sayed, Mohamed Darwish, Khaled Nassar
  • Patent number: 6737462
    Abstract: The invention relates to thermally stable, weather-resistant polyamide moulding compositions containing as stabiliser, a mixture of a copper halide, one or more halogen compounds and hypophosphorous acid or an alkali metal or alkaline earth metal salt of this acid, wherein the individual components of the stabiliser mixture are added in an amount such that the molar amount of halogen contained in the moulding composition is greater than or equal to six times the molar amount of and less than or equal to fifteen times the molar amount of copper contained in the moulding composition and the molar amount of phosphorus is greater than or equal to the molar amount of and less than or equal to ten times the molar amount of copper contained in the moulding composition.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: May 18, 2004
    Assignee: Bayer AG
    Inventors: Andreas Gittinger, Aziz El-Sayed, Edgar Ostlinning, Ralf Lange
  • Publication number: 20020077403
    Abstract: The invention relates to thermally stable, weather-resistant polyamide moulding compositions containing, as stabiliser, a mixture of a copper halide, one or more halogen compounds and hypophosphorous acid or an alkali metal or alkaline earth metal salt of this acid, wherein the individual components of the stabiliser mixture are added in an amount such that the molar amount of halogen contained in the moulding composition is greater than or equal to six times the molar amount of and less than or equal to fifteen times the molar amount of copper contained in the moulding composition and the molar amount of phosphorus is greater than or equal to the molar amount of and less than or equal to ten times the molar amount of copper contained in the moulding composition.
    Type: Application
    Filed: November 20, 2001
    Publication date: June 20, 2002
    Applicant: Bayer AG
    Inventors: Andreas Gittinger, Aziz-El Sayed, Edgar Ostlinning, Ralf Lange
  • Patent number: 6207072
    Abstract: A coolant containing 35-65 wt. % polyethylene glycol and 65-35 wt. % ethylene glycol, which is especially useful for cooling motor vehicle engines.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: March 27, 2001
    Assignee: Bayer AG
    Inventors: Aziz El Sayed, Detlev Joachimi, Hartwig Meier, Karsten-Josef Idel
  • Patent number: 6071984
    Abstract: This invention relates to reinforced thermoplastic moulding compositions prepared from biodegradable polymers, for example aliphatic or polyester amides, aliphatic polyester urethanes, and to the use thereof for the production of mouldings and to the mouldings, wherein the reinforcing materials are selected from wood flour, fibres of natural origin, minerals of natural origin, cellulose and cellulose derivatives.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: June 6, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ernst Grigat, Hanns Peter Muller, Wolfgang Schulz-Schlitte, Aziz El Sayed, Ralf Timmermann
  • Patent number: 5965652
    Abstract: The invention relates to thermally stable and UV-stable polyamide molding compounds containing colloidal copper formed in situ and to a process for their production.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: October 12, 1999
    Assignee: Bayer AG
    Inventors: Aziz El Sayed, Edgar Ostlinning, Alban Hennen, Georg Heger, Werner Nielinger, Karsten-Josef Idel, Klaus Sommer, Raymond Audenaert
  • Patent number: 5827905
    Abstract: This invention relates to reinforced thermoplastic moulding compositions prepared from biodegradable polymers, for example aliphatic or polyester amides, aliphatic polyester urethanes, and to the use thereof for the production of mouldings and to the mouldings, wherein the reinforcing materials are selected from wood flour, fibres of natural origin, minerals of natural origin, cellulose and cellulose derivatives.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: October 27, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ernst Grigat, Hanns Peter Muller, Wolfgang Schulz-Schlitte, Aziz El Sayed, Ralf Timmermann
  • Patent number: 5717018
    Abstract: A thermoplastic molding composition, containingA) 99.95 to 30 parts by weight of thermoplastic polymer,B) 0 to 3 parts by weight of copper pyrophosphate hydrate,C) 0 to 3 parts by weight of copper(II) hydroxide phosphate,D) 0 to 3 parts by weight of manganese sulphate hydrate,E) 0 to 50 parts by weight of fillers and reinforcing materials,F) 0 to 60 parts by weight of flame retardant additives,G) 0 to 30 parts by weight of elastomeric modifiers,H) 0 to 8 parts by weight of antimony trioxide,wherein at least one of the components B) or D) is contained in the mixture.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: February 10, 1998
    Assignee: Bayer AG
    Inventors: Herbert Magerstedt, Aziz El-Sayed, Frank Gerling
  • Patent number: 5576377
    Abstract: The present invention relates to colored polymer moulding materials which give rise to colored markings on a dark background with a very high contrast ratio on the absorption of laser energy.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: November 19, 1996
    Assignee: Bayer AG
    Inventors: Aziz El Sayed, Frank Gerling, Salvatore Messina, Herbert Magerstedt, Karsten-Josef Idel, Edgar Ostlinning
  • Patent number: 5416143
    Abstract: The invention relates to readily processible polyamide molding compounds which have very good mechanical and electrical properties as well as high surface quality and are based on polyamide, magnesium hydroxide and polyhydroxy compounds of the Novolak type.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: May 16, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Aziz El Sayed, Edgar Ostlinning, Karsten-Josef Idel, Dieter Freitag
  • Patent number: 5389712
    Abstract: The present invention relates to easily processable polyamide moulding materials with very good mechanical and electrical properties based on calcium magnesium carbonate hydrate as the flame-retardant additive.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: February 14, 1995
    Assignee: Bayer AG
    Inventors: Aziz El Sayed, Edgar Ostlinning, Karsten-Josef Idel, Dieter Freitag, Georg Heger
  • Patent number: 5378750
    Abstract: This invention relates to readily processable polyamide molding compounds combining very good mechanical and electrical properties with high surface quality based on copolyamides and magnesium hydroxide.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: January 3, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Aziz El Sayed, Edgar Ostlinning, Karsten-Josef Idel
  • Patent number: 5242960
    Abstract: The invention relates to flameproofed non-drip polyamide molding compounds which contain certain quantities ofa) phosphinic acid esters of polyphenols still containing free phenolic OH groups,b) zinc borate and/or zinc oxide,c) thermoplastics having a predominantly aromatic main chain, optionallyd) antidripping agents (for example polyfluoroethylene polymers) and, optionally,reinforcing materials and/or mineral fillers and other additives for processing, stabilization, etc.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: September 7, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Edgar Ostlinning, Aziz El Sayed, Klaus Sommer, Hans G. Frohlen
  • Patent number: 5201921
    Abstract: Process for rendering a plastic identifiable by adding 5 to 10,000 ppb of a fluorescent marker to the plastic during or after is manufacture.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: April 13, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Luttermann, Uwe Claussen, Aziz El Sayed, Reinhard Riess
  • Patent number: 5128401
    Abstract: A polymeric molding compositon based on aliphatic polyamides contains as additives polyarylene sulfides and polyphenolic compounds free from tertiary alkyl group ortho to the phenolic-OH groups is useful in producing molded articles such as films, fibers and shaped objects.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: July 7, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Detlef Heinz, Aziz El-Sayed, Werner Kloker, Ralf Dujardin
  • Patent number: 5102931
    Abstract: The subject of the invention is flameproofed, non-dripping polyamide moulding compounds which contain specific amounts of the following:A) Phosphinic acid esters of polyphenols based on phenolaldehyde/ketone condensates,B) Anti-dripping agents (such as polyfluoroethylene polymers or aramides),C) Zinc borate,D) Thermoplastics with a predominantly aromatic main chain and a high thermal deflection temperature (Vicat B.gtoreq.180.degree. C.),and, if applicable, reinforcing agents and other additives for flameproofing and processing.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: April 7, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Aziz El-Sayed, Peter-Rolf Muller, Martin Wandel
  • Patent number: 5102935
    Abstract: The invention relates to new, free-flowing polyamide molding compounds and blends, characterized in that they are prepared by mixing of polyamides known per se in the melt with low molecular weight, liquid-crystalline esters and/or ester amides corresponding to formula (I) and/or liquid-crystalline, oligomeric esters and/or ester amides corresponding to formula (II) and, optionally, other additives, at least one polymeric blending component being used as a further additive in the case of polyamide blends, and to the use of these liquid-crystalline (LC) additives I and/or II as flow promoters in polyamide molding compounds and blends and to a process for the production of the new polyamide molding compounds and blends. The invention also relates to the new oligomeric esters and/or ester amides corresponding to formula (II).
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: April 7, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Detlef Heinz, Harald Pielartzik, Aziz El-Sayed, Rolf-Volker Meyer, Martin Wandel, Peter-Roger Nyssen
  • Patent number: 5093457
    Abstract: The invention relates to a process for the production of polyamide imides from diimidodicarboxylic acids, trimellitic imidocarboxylic acids and diisocyanates and to their use as moldings, films and binders for paints.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: March 3, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilfried Zecher, Rolf Dhein, Aziz El-Sayed, Wilfried Haese
  • Patent number: 5021488
    Abstract: The invention relates to flameproofed, non-dripping polyamide moulding compositions which contain certain amounts ofA) phosphinic acid esters of polyphenols based on phenol-aldehyde/ketone condensates,B) antidripping agents (such as polyfluoroethylene polymers or aramides) andC) zinc borateand if appropriate reinforcing agents and other additives for flameproofing and for processing etc.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: June 4, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Aziz El-Sayed, Peter-Rolf Muller, Martin Wandel