IN2014DN08405A - - Google Patents

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Publication number
IN2014DN08405A
IN2014DN08405A IN8405DEN2014A IN2014DN08405A IN 2014DN08405 A IN2014DN08405 A IN 2014DN08405A IN 8405DEN2014 A IN8405DEN2014 A IN 8405DEN2014A IN 2014DN08405 A IN2014DN08405 A IN 2014DN08405A
Authority
IN
India
Prior art keywords
acid
mixtures
acrylic acid
hydroxypropionic
acid derivatives
Prior art date
Application number
Inventor
Juan Esteban Velasquez
Janette Villalobos Lingoes
Dimitris Ioannis Collias
Jane Ellen Godlewski
Original Assignee
Procter & Gamble
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Procter & Gamble filed Critical Procter & Gamble
Publication of IN2014DN08405A publication Critical patent/IN2014DN08405A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
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    • B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

Methods for catalytically dehydrating hydroxypropionic acid hydroxypropionic acid derivatives or mixtures thereof to acrylic acid acrylic acid derivatives or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products such as acetaldehyde propionic acid and acetic acid are provided. The catalysts are mixed monophosphates.
IN8405DEN2014 2012-04-11 2013-04-11 IN2014DN08405A (en)

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US201261623054P 2012-04-11 2012-04-11
US13/760,472 US9714208B2 (en) 2012-04-11 2013-02-06 Catalysts conversion of hydroxypropionic acid or its derivatives to acrylic acid or its derivatives
US13/835,187 US9926256B2 (en) 2012-04-11 2013-03-15 Catalytic conversion of lactic acid to acrylic acid
US13/839,986 US9505697B2 (en) 2012-04-11 2013-03-15 Method for the production of acrylic acid or its derivatives
PCT/US2013/036164 WO2013155298A1 (en) 2012-04-11 2013-04-11 Method for the production of acrylic acid or its derivatives

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